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Showing 1 - 20 of 264 results

Time Scales of Hypoxia-Induced Nutrient Recycling in Sediments: An Experimental Approach Using Engineered Aeration

Testa, Jeremy M

;

Hodgkins, Casey

2025 | Environ. Sci. Technol. (2025) 59 (29): 15115-15127 | PDF

Sediment-water exchanges of nutrients and oxygen are highly impacted by the overlying water oxygen conditions. Despite evidence that deoxygenation stimulates sediment recycling of nitrogen and phosphorus, extensive short-term measurements of these processes have not been made in coastal ecosystems. We leveraged an engineered aeration system in a sm ...

08/28/2026

Supporting Files

Title : Time Scales of Hypoxia-Induced Nutrient Recycling in Sediments: An Experimental Approach Using Engineered Aeration Personal Author(s) : Testa, Jeremy M;Hodgkins, Casey;Forsyth, Melinda K.;Moore, Amanda;Bailey, Eva;Day, Melissa C.;Lapham, Laura L.;Heyes, Andrew;Harris, Lora A.; Published Date : 2025 Source : Environ. Sci. Technol. (2025) 59 (29): 15115-15127 DOI : http://doi.org/10.1021/acs.est.4c12240 Journal Title : Environmental Science and Technology
Testa, J. M., Hodgkins, C., Forsyth, M. K., Moore, A., Bailey, E., Day, M. C., Lapham, L. L., Heyes, A., & Harris, L. A. (2025). Time Scales of Hypoxia-Induced Nutrient Recycling in Sediments: An Experimental Approach Using Engineered Aeration. Environmental Science and Technology, 59(29). http://doi.org/10.1021/acs.est.4c12240

Testa, Jeremy M, Casey Hodgkins, Melinda K. Forsyth, Amanda Moore, Eva Bailey, Melissa C. Day, Laura L. Lapham, Andrew Heyes, and Lora A. Harris. "Time Scales of Hypoxia-Induced Nutrient Recycling in Sediments: An Experimental Approach Using Engineered Aeration." Environmental Science and Technology 59, no. 29 (2025). http://doi.org/10.1021/acs.est.4c12240.

Testa, Jeremy M, et al. "Time Scales of Hypoxia-Induced Nutrient Recycling in Sediments: An Experimental Approach Using Engineered Aeration." Environmental Science and Technology, vol. 59, no. 29, 2025. NOAA IR. http://doi.org/10.1021/acs.est.4c12240.
Export RIS Citation Information. TY - AU - Testa, Jeremy M AU - Hodgkins, Casey AU - Forsyth, Melinda K. AU - Moore, Amanda AU - Bailey, Eva AU - Day, Melissa C. AU - Lapham, Laura L. AU - Heyes, Andrew AU - Harris, Lora A. AB - Sediment-water exchanges of nutrients and oxygen are highly impacted by the overlying water oxygen conditions. Despite evidence that deoxygenation stimulates sediment recycling of nitrogen and phosphorus, extensive short-term measurements of these processes have not been made in coastal ecosystems. We leveraged an engineered aeration system in a small estuary to perform ecosystem-scale deoxygenation experiments and measure the responses of sediment-water fluxes to different time scales (days to weeks) of oxygen depletion. We found that sediment-water flux responses to deoxygenation were not immediate and that response times and types varied by solute. Deoxygenation was associated with elevated orthophosphorus fluxes and reduced sediment uptake of nitrate + nitrite, consistent with past studies. For each day the engineered aeration system was turned off, an additional 5.1 μmol P m-2 h-1 was released from sediments, leading to bottom water orthophosphate concentrations increasing by a factor of 3-10. In contrast, sediment-water ammonium fluxes decreased under deoxygenation, which is not consistent with previously described patterns. These results underscore solute-specific time scales of responses to deoxygenation and reflect the influence of factors beyond dissolved oxygen. We conclude that sediment responses to deoxygenation require sustained oxygen depletion and that the time scales of responses for nitrogen and phosphorus differ. AN - noaa:74387 DO - http://doi.org/10.1021/acs.est.4c12240 IS - 29 J2 - Environmental Science and Technology KW - Eutrophication KW - Sediments (Geology) KW - Sediments KW - Hypoxia KW - Engindeered aeration KW - Nutrient recycling KW - Eutrophication KW - Sediments KW - Sediments (Geology) PY - 2025 T2 - Environmental Science and Technology T2 - Environ. Sci. Technol. (2025) 59 (29): 15115-15127 TI - Time Scales of Hypoxia-Induced Nutrient Recycling in Sediments: An Experimental Approach Using Engineered Aeration VL - 59 UR - https://repository.library.noaa.gov/view/noaa/74387 ER -
Global Oceans

Johnson, Gregory C.

;

Lumpkin, Rick

2026 | Bull. Amer. Meteor. Soc., 106 (8), Si-S513 | PDF

El Niño ebbed in early 2024, reaching neutral status in May and crossing the threshold into La Niña conditions in December. The global average annual sea surface temperature was 0.06°C above the previous record set in 2023. Marine heatwaves in 2024 were, as in 2023, more widespread, long-lived, and severe than in previous years. From 2023 to 2024, ...

08/28/2026

Title : Global Oceans Personal Author(s) : Johnson, Gregory C.;Lumpkin, Rick;Bellas-Manley, Ashley;Carter, Brendan R.;Dong, Shenfu;Feely, Ridhard A.;Graham, Garrett;Hu, Zeng-Zhen;Huang, Boyin;Jersild, Annika;Le Hénaffm, Matthieu;Leuliette, Eric;Locarnini, Ricardo;Lyman, John M.;Nerem R. Steven;Perez, Renellys C.;Reagan, James;Smith, Ryan H.;Sweet, William;Thompson, Philip R.;Triñanes, Joaquin A;Tuchen, Franz Philip;Volkov, Denis L.;Wanninkhof, Rik;Widlansky, Matthew J.;Yin, Xungang;Zhang, Huai-Min; Published Date : 2026 Source : Bull. Amer. Meteor. Soc., 106 (8), Si-S513 DOI : https://doi.org/10.1175/BAMS-D-25-0074.1 Journal Title : Bulletin of the American Meteorological Society
Johnson, G. C., Lumpkin, R., Bellas-Manley, A., Carter, B. R., Dong, S., Feely, R. A., Graham, G., Hu, Z. Z., Huang, B., Jersild, A., Le Hénaffm, M., Leuliette, E., Locarnini, R., Lyman, J. M., Steven, N. R., Perez, R. C., Reagan, J., Smith, R. H., Sweet, W., ... Zhang, H. M. (2026). Global Oceans. Bulletin of the American Meteorological Society, 106(8). https://doi.org/10.1175/BAMS-D-25-0074.1

Johnson, Gregory C., Rick Lumpkin, Ashley Bellas-Manley, Brendan R. Carter, Shenfu Dong, Ridhard A. Feely, and Garrett Graham, et al.. "Global Oceans." Bulletin of the American Meteorological Society 106, no. 8 (2026). https://doi.org/10.1175/BAMS-D-25-0074.1.

Johnson, Gregory C., et al. "Global Oceans." Bulletin of the American Meteorological Society, vol. 106, no. 8, 2026. NOAA IR. https://doi.org/10.1175/BAMS-D-25-0074.1.
Export RIS Citation Information. TY - AU - Johnson, Gregory C. AU - Lumpkin, Rick AU - Bellas-Manley, Ashley AU - Carter, Brendan R. AU - Dong, Shenfu AU - Feely, Ridhard A. AU - Graham, Garrett AU - Hu, Zeng-Zhen AU - Huang, Boyin AU - Jersild, Annika AU - Le Hénaffm, Matthieu AU - Leuliette, Eric AU - Locarnini, Ricardo AU - Lyman, John M. AU - Nerem R. Steven AU - Perez, Renellys C. AU - Reagan, James AU - Smith, Ryan H. AU - Sweet, William AU - Thompson, Philip R. AU - Triñanes, Joaquin A AU - Tuchen, Franz Philip AU - Volkov, Denis L. AU - Wanninkhof, Rik AU - Widlansky, Matthew J. AU - Yin, Xungang AU - Zhang, Huai-Min AB - El Niño ebbed in early 2024, reaching neutral status in May and crossing the threshold into La Niña conditions in December. The global average annual sea surface temperature was 0.06°C above the previous record set in 2023. Marine heatwaves in 2024 were, as in 2023, more widespread, long-lived, and severe than in previous years. From 2023 to 2024, ocean heat content from 0 dbar to 2000 dbar increased at a rate equivalent to ∼1.5 W m−2 of heat applied over the ocean surface, and global sea level increased by 4.6 (±1.4) mm, both reaching record-high levels in 2024. Maps of air-sea flux data estimate that the oceans absorbed carbon at a rate of ∼2.7 Pg C yr−1 in 2024, which was below the 2014-23 average of ∼3.7 Pg C yr−1. AN - noaa:74386 DO - https://doi.org/10.1175/BAMS-D-25-0074.1 IS - 8 J2 - Bulletin of the American Meteorological Society KW - Ocean temperature KW - Sea level KW - Ocean currents KW - Phytoplankton KW - Ocean KW - Salinity KW - Sea surface temperature KW - Marine heatwaves KW - Sea surface salinity KW - Ocean heat fluxes KW - Carbon cycle KW - Meridional overturning circulation (MOC) KW - Ocean KW - Ocean temperature KW - Salinity KW - Sea level KW - Ocean currents KW - Phytoplankton PY - 2026 T2 - Bulletin of the American Meteorological Society T2 - Bull. Amer. Meteor. Soc., 106 (8), Si-S513 TI - Global Oceans VL - 106 UR - https://repository.library.noaa.gov/view/noaa/74386 ER -
Surface Meteorology and Air-Sea Fluxes at the WHOTS Ocean Reference Station: Variability at Periods up to One Year

Weller, Robert A.

;

Lukas, Roger

2026 | Meteorology 2026, 5(1), 5 | PDF

An eighteen-year record of in situ surface meteorology and computed bulk air-sea fluxes of heat, freshwater, and momentum from an ocean site windward of the Hawaiian Islands is presented. Observations were logged every minute. The one-minute, one-hour, and one-day time series statistics are presented. The daily-averaged time series provide an overv ...

08/28/2026

Title : Surface Meteorology and Air-Sea Fluxes at the WHOTS Ocean Reference Station: Variability at Periods up to One Year Personal Author(s) : Weller, Robert A.;Lukas, Roger;Bigorre, Sebastien P.;Plueddemann, Albert J.;Potemra, James; Published Date : 2026 Source : Meteorology 2026, 5(1), 5 DOI : https://doi.org/10.3390/meteorology5010005 Journal Title : Meteorology
Weller, R. A., Lukas, R., Bigorre, S. P., Plueddemann, A. J., & Potemra, J. (2026). Surface Meteorology and Air-Sea Fluxes at the WHOTS Ocean Reference Station: Variability at Periods up to One Year. Meteorology, 5(1). https://doi.org/10.3390/meteorology5010005

Weller, Robert A., Roger Lukas, Sebastien P. Bigorre, Albert J. Plueddemann, and James Potemra. "Surface Meteorology and Air-Sea Fluxes at the WHOTS Ocean Reference Station: Variability at Periods up to One Year." Meteorology 5, no. 1 (2026). https://doi.org/10.3390/meteorology5010005.

Weller, Robert A., et al. "Surface Meteorology and Air-Sea Fluxes at the WHOTS Ocean Reference Station: Variability at Periods up to One Year." Meteorology, vol. 5, no. 1, 2026. NOAA IR. https://doi.org/10.3390/meteorology5010005.
Export RIS Citation Information. TY - AU - Weller, Robert A. AU - Lukas, Roger AU - Bigorre, Sebastien P. AU - Plueddemann, Albert J. AU - Potemra, James AB - An eighteen-year record of in situ surface meteorology and computed bulk air-sea fluxes of heat, freshwater, and momentum from an ocean site windward of the Hawaiian Islands is presented. Observations were logged every minute. The one-minute, one-hour, and one-day time series statistics are presented. The daily-averaged time series provide an overview of this trade wind site, with mean wind of 6.8 m s−1 toward the west-southwest, mean ocean heat gain of 23.2 W m−2, and freshwater loss of 1.2 m yr−1. Energetic variability was found at the higher sampling rates, evidenced by spectral peaks in solar insolation and sea-level pressure and by striking transient signals including short-lived insolation values higher than clear-sky values, short periods with air warmer than the sea surface, and by series of downdrafts of dry air. At longer periods, the presence of moist air accompanying low winds and sunny skies enhanced ocean heating. Winter events with dry air and wind, resulting in large latent and net heat loss, led to ocean cooling. Signals of two hurricanes, Darby and Douglas, were recorded. Normalized by their duration, short-lived events have the potential to make significant contributions to the heat, freshwater, and mechanical energy exchanges. AN - noaa:74385 DO - https://doi.org/10.3390/meteorology5010005 IS - 1 J2 - Meteorology KW - Trade winds KW - Meteorology KW - Ocean-atmosphere interaction KW - Air-sea flux KW - Surface meteorology KW - Long record KW - Rapid sampling KW - Heating and cooling events KW - Daily and annual cycles KW - Ocean-atmosphere interaction KW - Trade winds KW - Meteorology PY - 2026 T2 - Meteorology T2 - Meteorology 2026, 5(1), 5 TI - Surface Meteorology and Air-Sea Fluxes at the WHOTS Ocean Reference Station: Variability at Periods up to One Year VL - 5 UR - https://repository.library.noaa.gov/view/noaa/74385 ER -
Nitrate distribution of Pacific Winter Water along the northern edge of the Chukchi Sea

Wang, Yanxin

;

Lin, Peigen

2026 | Geophysical Research Letters, 53, e2025GL120015 | PDF

Nutrient-rich, Pacific-origin winter water (PWW) is a primary source of nitrate for the western Arctic Ocean, spurring primary production at the base of the food web. This cold water exits the Chukchi Sea shelf via Herald Canyon and Barrow Canyon, which feed the eastward-flowing Chukchi Shelfbreak Jet (CSJ) and the westward-flowing Chukchi Slope Cu ...

08/28/2026

Supporting Files

Title : Nitrate distribution of Pacific Winter Water along the northern edge of the Chukchi Sea Personal Author(s) : Wang, Yanxin;Lin, Peigen;Pickart, Robert S.; Published Date : 2026 Source : Geophysical Research Letters, 53, e2025GL120015 DOI : https://doi.org/10.1029/2025GL120015 Journal Title : Journal of Geophysical Research
Wang, Y., Lin, P., & Pickart, R. S. (2026). Nitrate distribution of Pacific Winter Water along the northern edge of the Chukchi Sea. Journal of Geophysical Research, 53(7). https://doi.org/10.1029/2025GL120015

Wang, Yanxin, Peigen Lin, and Robert S. Pickart. "Nitrate distribution of Pacific Winter Water along the northern edge of the Chukchi Sea." Journal of Geophysical Research 53, no. 7 (2026). https://doi.org/10.1029/2025GL120015.

Wang, Yanxin, et al. "Nitrate distribution of Pacific Winter Water along the northern edge of the Chukchi Sea." Journal of Geophysical Research, vol. 53, no. 7, 2026. NOAA IR. https://doi.org/10.1029/2025GL120015.
Export RIS Citation Information. TY - AU - Wang, Yanxin AU - Lin, Peigen AU - Pickart, Robert S. AB - Nutrient-rich, Pacific-origin winter water (PWW) is a primary source of nitrate for the western Arctic Ocean, spurring primary production at the base of the food web. This cold water exits the Chukchi Sea shelf via Herald Canyon and Barrow Canyon, which feed the eastward-flowing Chukchi Shelfbreak Jet (CSJ) and the westward-flowing Chukchi Slope Current, respectively. Using historical measurements of nitrate, hydrography, and velocity between 2002 and 2023, we characterize the spatial distribution of nitrate along the northern edge of the Chukchi shelf. Our analysis reveals that the nitrate concentration of PWW increases significantly to the west. Documenting the sources of nitrate in Herald Canyon and Barrow Canyon, and following its downstream evolution in the two currents, we demonstrate that the westward increase in nitrate is primarily associated with the CSJ. Our results shed light on the physical basis for seasonal phytoplankton growth and carbon sequestration in the region. AN - noaa:74384 DO - https://doi.org/10.1029/2025GL120015 IS - 7 J2 - Journal of Geophysical Research KW - Nitrates KW - Pacific-origin winter water (PWW) KW - Herald Canyon KW - Chukchi Shelfbreak Jet (CSJ) KW - Nitrates PY - 2026 T2 - Journal of Geophysical Research T2 - Geophysical Research Letters, 53, e2025GL120015 TI - Nitrate distribution of Pacific Winter Water along the northern edge of the Chukchi Sea VL - 53 UR - https://repository.library.noaa.gov/view/noaa/74384 ER -
Zooplankton monitoring at fixed station time series records responses of the foundation species, Calanus finmarchicus, to seasonal and multiannual drivers in the western Gulf of Maine

Runge, Jeffrey A.

;

Thompson, Cameron R.S.

2025 | ICES Journal of Marine Science, Volume 82, Issue 4, April 2025, fsaf037 | PDF

Over the past two decades, a regional collaboration, now part of the US Marine Biodiversity Observation Network (MBON), has established the Wilkinson Basin Time Series (WBTS) and the Coastal Maine Time Series (CMTS) stations to observe change at subannual as well as multiannual scales in plankton of the western Gulf of Maine (GoM), USA. The station ...

08/28/2026

Supporting Files

Title : Zooplankton monitoring at fixed station time series records responses of the foundation species, Calanus finmarchicus, to seasonal and multiannual drivers in the western Gulf of Maine Personal Author(s) : Runge, Jeffrey A.;Thompson, Cameron R.S.;Shellito, Shawn;Dullaert, Emma C.;Honda, Isabel A.;Vandemark, Douglas;Pugh, Dylan;Young-Morse, Riley;Motyka, Jackie;Jones, Rebecca J.;Boss, Lee Karp;Ji, Rubao; Published Date : 2025 Source : ICES Journal of Marine Science, Volume 82, Issue 4, April 2025, fsaf037 DOI : https://doi.org/10.1093/icesjms/fsaf037 Journal Title : ICES Journal of Marine Science
Runge, J. A., Thompson, C. R., Shellito, S., Dullaert, E. C., Honda, I. A., Vandemark, D., Pugh, D., Young-Morse, R., Motyka, J., Jones, R. J., Boss, L. K., & Ji, R. (2025). Zooplankton monitoring at fixed station time series records responses of the foundation species, Calanus finmarchicus, to seasonal and multiannual drivers in the western Gulf of Maine. ICES Journal of Marine Science, 82(4). https://doi.org/10.1093/icesjms/fsaf037

Runge, Jeffrey A., Cameron R.S. Thompson, Shawn Shellito, Emma C. Dullaert, Isabel A. Honda, Douglas Vandemark, and Dylan Pugh, et al.. "Zooplankton monitoring at fixed station time series records responses of the foundation species, Calanus finmarchicus, to seasonal and multiannual drivers in the western Gulf of Maine." ICES Journal of Marine Science 82, no. 4 (2025). https://doi.org/10.1093/icesjms/fsaf037.

Runge, Jeffrey A., et al. "Zooplankton monitoring at fixed station time series records responses of the foundation species, Calanus finmarchicus, to seasonal and multiannual drivers in the western Gulf of Maine." ICES Journal of Marine Science, vol. 82, no. 4, 2025. NOAA IR. https://doi.org/10.1093/icesjms/fsaf037.
Export RIS Citation Information. TY - AU - Runge, Jeffrey A. AU - Thompson, Cameron R.S. AU - Shellito, Shawn AU - Dullaert, Emma C. AU - Honda, Isabel A. AU - Vandemark, Douglas AU - Pugh, Dylan AU - Young-Morse, Riley AU - Motyka, Jackie AU - Jones, Rebecca J. AU - Boss, Lee Karp AU - Ji, Rubao AB - Over the past two decades, a regional collaboration, now part of the US Marine Biodiversity Observation Network (MBON), has established the Wilkinson Basin Time Series (WBTS) and the Coastal Maine Time Series (CMTS) stations to observe change at subannual as well as multiannual scales in plankton of the western Gulf of Maine (GoM), USA. The stations are strategically located to monitor plankton in the Maine Coastal Current, a regional production driver, and in Wilkinson Basin, the primary deep basin in the western GoM. Here, we develop seasonal indices tracking change in mesozooplankton biomass and abundance of the planktonic copepod, Calanus finmarchicus, the energy-rich copepod that supports the regional ecosystem. The time series spans a shift in oceanographic conditions that occurred around 2010. In Wilkinson Basin, the abundance of C. finmarchicus varies by over an order of magnitude during its annual life cycle. At the WBTS station, the fall/winter late-stage abundance of C. finmarchicus has declined up to 80% between 2005 and 2023. The fall/winter abundance decline is likely related to a change in supply from the western Scotian Shelf after 2010 combined with increased seasonal predation mortality. However, in spring the abundance of C. finmarchicus remained steady, although initially increased after 2010. The trend in spring abundance corresponds to slight increases in chlorophyll a standing stock in late winter/early spring, favoring C. finmarchicus egg production. Similar trends in mesozooplankton biomass reflect the predominance of C. finmarchicus in the zooplankton community. We propose that the abundance cycles and trends in C. finmarchicus and biomass be reported regularly as seasonal indices, serving as a sentinel indicator of subarctic western GoM pelagic ecosystem function. AN - noaa:74383 DO - https://doi.org/10.1093/icesjms/fsaf037 IS - 4 J2 - ICES Journal of Marine Science KW - Time-series analysis KW - Calanus finmarchicus KW - Zooplankton KW - US Marine Biodiversity Observation Network (MBON) KW - Fixed station KW - Calanus finmarchicus KW - Time-series analysis KW - Zooplankton PY - 2025 T2 - ICES Journal of Marine Science T2 - ICES Journal of Marine Science, Volume 82, Issue 4, April 2025, fsaf037 TI - Zooplankton monitoring at fixed station time series records responses of the foundation species, Calanus finmarchicus, to seasonal and multiannual drivers in the western Gulf of Maine VL - 82 UR - https://repository.library.noaa.gov/view/noaa/74383 ER -
Response of the mesozooplankton community in the western Gulf of Maine to changing oceanographic conditions: the 2010 regime shift

Dullaert, Emma C.

;

Runge, Jeffrey A.

2026 | Journal of Plankton Research, 2026, 48, fbaf066 | PDF

The Gulf of Maine has experienced pronounced changes in recent decades, including rapid warming and changes in circulation. Notably, a shift in water masses entering the Gulf occurred around 2010. Concurrent declines in critically endangered North Atlantic right whales, lobster recruitment and abundance of the foundational, subarctic copepod, Calan ...

08/28/2026

Supporting Files

Title : Response of the mesozooplankton community in the western Gulf of Maine to changing oceanographic conditions: the 2010 regime shift Personal Author(s) : Dullaert, Emma C.;Runge, Jeffrey A.;Karp-Boss, Lee;Shellito, Shawn;Thompson, Cameron R.S.;Jones, Rebecca J.; Published Date : 2026 Source : Journal of Plankton Research, 2026, 48, fbaf066 DOI : https://doi.org/10.1093/plankt/fbaf066 Journal Title : Journal of Plankton Research
Dullaert, E. C., Runge, J. A., Karp-Boss, L., Shellito, S., Thompson, C. R., & Jones, R. J. (2026). Response of the mesozooplankton community in the western Gulf of Maine to changing oceanographic conditions: the 2010 regime shift. Journal of Plankton Research, 48(1). https://doi.org/10.1093/plankt/fbaf066

Dullaert, Emma C., Jeffrey A. Runge, Lee Karp-Boss, Shawn Shellito, Cameron R.S. Thompson, and Rebecca J. Jones. "Response of the mesozooplankton community in the western Gulf of Maine to changing oceanographic conditions: the 2010 regime shift." Journal of Plankton Research 48, no. 1 (2026). https://doi.org/10.1093/plankt/fbaf066.

Dullaert, Emma C., et al. "Response of the mesozooplankton community in the western Gulf of Maine to changing oceanographic conditions: the 2010 regime shift." Journal of Plankton Research, vol. 48, no. 1, 2026. NOAA IR. https://doi.org/10.1093/plankt/fbaf066.
Export RIS Citation Information. TY - AU - Dullaert, Emma C. AU - Runge, Jeffrey A. AU - Karp-Boss, Lee AU - Shellito, Shawn AU - Thompson, Cameron R.S. AU - Jones, Rebecca J. AB - The Gulf of Maine has experienced pronounced changes in recent decades, including rapid warming and changes in circulation. Notably, a shift in water masses entering the Gulf occurred around 2010. Concurrent declines in critically endangered North Atlantic right whales, lobster recruitment and abundance of the foundational, subarctic copepod, Calanus finmarchicus, have designated the 2010 event as a possible regime shift. We present results from two time series stations documenting change in the mesozooplankton biomass and community composition before and after 2010. We examine both seasonal and interannual variability to elucidate potential changes in phenological drivers of the mesozooplankton population in Wilkinson Basin. Abundances of smaller copepod species increased across all seasons between the two time periods, and significantly lower abundance of late-stage C. finmarchicus was observed in late summer through winter, resulting in a decrease in mesozooplankton biomass but increases in biodiversity indices post-2010. The results highlight the contribution of ecologically important increases in chlorophyll-a concentration and warmer temperatures as drivers of mesozooplankton growth and reproduction. An important ecological influence on food availability to smaller copepods may be reduced grazing competition by late-stage C. finmarchicus, a consequence of its declined abundance due to increased predation loss and reduced advective supply. AN - noaa:74382 DO - https://doi.org/10.1093/plankt/fbaf066 IS - 1 J2 - Journal of Plankton Research KW - Climatic changes KW - Calanus finmarchicus KW - Regimeshift KW - Mesozooplankton KW - Climate change KW - Calanus finmarchicus KW - Climatic changes PY - 2026 T2 - Journal of Plankton Research T2 - Journal of Plankton Research, 2026, 48, fbaf066 TI - Response of the mesozooplankton community in the western Gulf of Maine to changing oceanographic conditions: the 2010 regime shift VL - 48 UR - https://repository.library.noaa.gov/view/noaa/74382 ER -
Seasonal trophic controls drive population variability in a foundational marine copepod

Honda, Isabel A.

;

Medeiros, Lucas P.

2025 | Sci Rep 15, 36018 (2025) | PDF

Understanding the trophic drivers of zooplankton population variability is critical for predicting ecosystem responses to climate change. In the Gulf of Maine, the copepod Calanus finmarchicus is a foundational species linking primary producers to higher trophic levels, yet the biotic drivers shaping its seasonal and interannual abundances remain i ...

08/28/2026

Supporting Files

Title : Seasonal trophic controls drive population variability in a foundational marine copepod Personal Author(s) : Honda, Isabel A.;Medeiros, Lucas P.;Thompson, Cakmeron R.S.;Britten, Gregory L.;Runge, Jeffrey A.;Ji, Rubao; Published Date : 2025 Source : Sci Rep 15, 36018 (2025) DOI : https://doi.org/10.1038/s41598-025-19919-2 Journal Title : Scientific Reports
Honda, I. A., Medeiros, L. P., Thompson, C. R., Britten, G. L., Runge, J. A., & Ji, R. (2025). Seasonal trophic controls drive population variability in a foundational marine copepod. Scientific Reports, 15. https://doi.org/10.1038/s41598-025-19919-2

Honda, Isabel A., Lucas P. Medeiros, Cakmeron R.S. Thompson, Gregory L. Britten, Jeffrey A. Runge, and Rubao Ji. "Seasonal trophic controls drive population variability in a foundational marine copepod." Scientific Reports 15 (2025). https://doi.org/10.1038/s41598-025-19919-2.

Honda, Isabel A., et al. "Seasonal trophic controls drive population variability in a foundational marine copepod." Scientific Reports, vol. 15, 2025. NOAA IR. https://doi.org/10.1038/s41598-025-19919-2.
Export RIS Citation Information. TY - AU - Honda, Isabel A. AU - Medeiros, Lucas P. AU - Thompson, Cakmeron R.S. AU - Britten, Gregory L. AU - Runge, Jeffrey A. AU - Ji, Rubao AB - Understanding the trophic drivers of zooplankton population variability is critical for predicting ecosystem responses to climate change. In the Gulf of Maine, the copepod Calanus finmarchicus is a foundational species linking primary producers to higher trophic levels, yet the biotic drivers shaping its seasonal and interannual abundances remain incompletely understood. Here, we assess how predators impact C. finmarchicus abundances using over four decades of survey data. We find strong evidence for seasonally-structured trophic control, with spring C. finmarchicus abundances driving mid-year predator increases, which subsequently imposes significant top-down pressure on fall C. finmarchicus populations. This interplay is especially pronounced in the deep, retentive inner basins of the Gulf of Maine, where predator-prey dynamics tend to dominate over advective exchange. Our results reveal shifting interactions between bottom-up and top-down controls, highlighting the need to incorporate seasonal trophic mechanisms into ecosystem models to improve projections under further environmental change. AN - noaa:74381 DO - https://doi.org/10.1038/s41598-025-19919-2 J2 - Scientific Reports KW - Predation (Biology) KW - Copepoda KW - Animal populations KW - Marine ecology KW - Calanus finmarchicus KW - Seasonal trophic interactions KW - Convergent cross mapping KW - Population variability KW - Copepoda KW - Animal populations KW - Marine ecology KW - Predation (Biology) KW - Calanus finmarchicus PY - 2025 T2 - Scientific Reports T2 - Sci Rep 15, 36018 (2025) TI - Seasonal trophic controls drive population variability in a foundational marine copepod VL - 15 UR - https://repository.library.noaa.gov/view/noaa/74381 ER -
GOOS Essential Ocean Variables: the backbone of a sustained and evolving global ocean observing system

Míguez, Belén M. ;

Heslop, Emma

2026 | PMEL Contribution no. 5633 | PDF

The need for ocean information has never been greater. From climate change to food security and extreme events, we need to understand the role of the ocean and better predict change and impact. This is only possible with the sustained collection of a key set of ocean observations. The Global Ocean Observing System (GOOS) coordinates international e ...

08/28/2026

Title : GOOS Essential Ocean Variables: the backbone of a sustained and evolving global ocean observing system Personal Author(s) : Míguez, Belén M.;Heslop, Emma;Bax, Narissa;Benedetti-Cecchi, Lisandro;Canonico, Gabrielle;Kim Currie, Kim;Evans, Karen;Fischer, Albert S.;Legler, David;Sutton, Adrienne J.; Published Date : 2026 Series : PMEL Contribution no. 5633 Source : Front. Mar. Sci. 13:1737002 DOI : https://doi.org/10.3389/fmars.2026.1737002 Journal Title : Frontiers in Marine Science
Míguez, B. M., Heslop, E., Bax, N., Benedetti-Cecchi, L., Canonico, G., Kim Currie, K., Evans, K., Fischer, A. S., Legler, D., & Sutton, A. J. (2026). GOOS Essential Ocean Variables: the backbone of a sustained and evolving global ocean observing system. Frontiers in Marine Science, 13. https://doi.org/10.3389/fmars.2026.1737002

Míguez, Belén M., Emma Heslop, Narissa Bax, Lisandro Benedetti-Cecchi, Gabrielle Canonico, Kim Kim Currie, Karen Evans, Albert S. Fischer, David Legler, and Adrienne J. Sutton. "GOOS Essential Ocean Variables: the backbone of a sustained and evolving global ocean observing system." Frontiers in Marine Science 13 (2026). https://doi.org/10.3389/fmars.2026.1737002.

Míguez, Belén M., et al. "GOOS Essential Ocean Variables: the backbone of a sustained and evolving global ocean observing system." Frontiers in Marine Science, vol. 13, 2026. NOAA IR. https://doi.org/10.3389/fmars.2026.1737002.
Export RIS Citation Information. TY - AU - Míguez, Belén M. AU - Heslop, Emma AU - Bax, Narissa AU - Benedetti-Cecchi, Lisandro AU - Canonico, Gabrielle AU - Kim Currie, Kim AU - Evans, Karen AU - Fischer, Albert S. AU - Legler, David AU - Sutton, Adrienne J. AB - The need for ocean information has never been greater. From climate change to food security and extreme events, we need to understand the role of the ocean and better predict change and impact. This is only possible with the sustained collection of a key set of ocean observations. The Global Ocean Observing System (GOOS) coordinates international efforts to collect these Essential Ocean Variables (EOVs), which span physics, biogeochemistry, biology and ecosystem realms. Guided by three expert panels, these EOVs are used to define the needs and design of a sustained, fit for purpose global ocean observing system, aimed at maximizing investments in observing infrastructure. As the GOOS EOVs are increasingly used, it has become important to discuss and refine the understanding of this framework, to ensure that the right balance is struck between their essential nature and the need to expand to new domains and integrate with key global policies. In this paper we provide a description of the EOV framework, discuss some of the challenges in implementing it, and identify a set of recommendations for GOOS and the ocean observing community to take forward. These recommendations include increasing the transparency of the EOV adoption process, and the need to periodically assess the EOVs in consultation with observing communities and with the entities managing other global essential variable frameworks in cross cutting realms such as climate and biodiversity. This will contribute to building a useful and responsive global ocean observing system that delivers the observations required to meet societal needs. AN - noaa:74380 DO - https://doi.org/10.3389/fmars.2026.1737002 J2 - Frontiers in Marine Science KW - essential ocean variables, essential variables framework, global ocean observing system, ocean climate, ocean information, ocean monitoring, sustained observations, marine observations KW - Global Ocean Observing System KW - Essential ocean variables KW - Essential variables framework KW - Ocean climate KW - Ocean monitoring KW - Sustained observations KW - Marine observations KW - Global Ocean Observing System KW - essential ocean variables, essential variables framework, global ocean observing system, ocean climate, ocean information, ocean monitoring, sustained observations, marine observations PY - 2026 T2 - Frontiers in Marine Science T2 - Front. Mar. Sci. 13:1737002 T3 - PMEL Contribution no. 5633 TI - GOOS Essential Ocean Variables: the backbone of a sustained and evolving global ocean observing system VL - 13 UR - https://repository.library.noaa.gov/view/noaa/74380 ER -
Incorporating environmental covariates into a state-space stock assessment model for Yellowtail Flounder

Kittel, Jessica

;

Hansell, Alexander C.

2026 | Can. J. Fish. Aquat. Sci. 83: 1-16 (2026) | PDF

Yellowtail Flounder, Limanda ferruginea (a.k.a., Pleuronectes ferruginea), inhabit the northwest Atlantic continental shelf and historically supported target fisheries off New England. The Georges Bank stock declined in recent decades and has not recovered despite catch reductions. Stock assessments of Georges Bank Yellowtail Flounder exhibited ret ...

08/28/2026

Supporting Files

Title : Incorporating environmental covariates into a state-space stock assessment model for Yellowtail Flounder Personal Author(s) : Kittel, Jessica;Hansell, Alexander C.;Carrano, Cole;Cadrin, Steven X.; Published Date : 2026 Source : Can. J. Fish. Aquat. Sci. 83: 1-16 (2026) DOI : https://doi.org/10.1139/cjfas-2025-0289 Journal Title : Canadian Journal of Fisheries & Aquatic Sciences
Kittel, J., Hansell, A. C., Carrano, C., & Cadrin, S. X. (2026). Incorporating environmental covariates into a state-space stock assessment model for Yellowtail Flounder. Canadian Journal of Fisheries & Aquatic Sciences, 83. https://doi.org/10.1139/cjfas-2025-0289

Kittel, Jessica, Alexander C. Hansell, Cole Carrano, and Steven X. Cadrin. "Incorporating environmental covariates into a state-space stock assessment model for Yellowtail Flounder." Canadian Journal of Fisheries & Aquatic Sciences 83 (2026). https://doi.org/10.1139/cjfas-2025-0289.

Kittel, Jessica, et al. "Incorporating environmental covariates into a state-space stock assessment model for Yellowtail Flounder." Canadian Journal of Fisheries & Aquatic Sciences, vol. 83, 2026. NOAA IR. https://doi.org/10.1139/cjfas-2025-0289.
Export RIS Citation Information. TY - AU - Kittel, Jessica AU - Hansell, Alexander C. AU - Carrano, Cole AU - Cadrin, Steven X. AB - Yellowtail Flounder, Limanda ferruginea (a.k.a., Pleuronectes ferruginea), inhabit the northwest Atlantic continental shelf and historically supported target fisheries off New England. The Georges Bank stock declined in recent decades and has not recovered despite catch reductions. Stock assessments of Georges Bank Yellowtail Flounder exhibited retrospective patterns, which may result from model misspecification, such as assumptions that omit environmental effects on population or fishery dynamics. In the northwest Atlantic, ocean waters are warming four times faster than the global average, and low productivity of Yellowtail Flounder has been linked to ocean warming in the region. This study accounts for a changing environment in stock assessment and examines approaches to identify environmental data for inclusion in a state-space stock assessment model. After reviewing available information on environmental drivers affecting Yellowtail Flounder, exploratory analyses were conducted to identify relevant variables for incorporation. A stock assessment model including these effects was developed for the Georges Bank stock. Results indicate that including environmental covariates improves diagnostics and provides a case study for integrated, ecosystem-informed stock assessments. AN - noaa:74379 DO - https://doi.org/10.1139/cjfas-2025-0289 J2 - Canadian Journal of Fisheries & Aquatic Sciences KW - Fish stock assessment KW - Limanda ferruginea KW - Yellowtail Flounder KW - Environmental covariates KW - State-space model KW - Limanda ferruginea KW - Fish stock assessment PY - 2026 T2 - Canadian Journal of Fisheries & Aquatic Sciences T2 - Can. J. Fish. Aquat. Sci. 83: 1-16 (2026) TI - Incorporating environmental covariates into a state-space stock assessment model for Yellowtail Flounder VL - 83 UR - https://repository.library.noaa.gov/view/noaa/74379 ER -
Respiratory microbiomes reflect whale health

Miller, Carolyn A.

;

Pirotta, Enrico

2025 | The ISME Journal, Volume 19, Issue 1, January 2025 | PDF

As important members of the marine ecosystem, baleen whales are frequently managed and protected, but methodology to assess their health remains limited. Recent technological advances, such as the use of drones, support the non-invasive collection of promising health-associated data, including respiratory exhalant microbiota. Here, we considered fi ...

08/28/2026

Supporting Files

Title : Respiratory microbiomes reflect whale health Personal Author(s) : Miller, Carolyn A.;Pirotta, Enrico;Grim Sharon;Moore, Michael J.;Durban, John W.;Tyack, Peter L.;Fearnbach, Holly;Leander, Samantha G.M.;Knowlton, Amy R.;Warren, Amy M.;Zani, Monica A.;Asmutis-Silvia, Regina;Pettis, Heather M.;Apprill, Amy; Published Date : 2025 Source : The ISME Journal, Volume 19, Issue 1, January 2025 DOI : https://doi.org/10.1093/ismejo/wraf231 Journal Title : The ISME Journal
Miller, C. A., Pirotta, E., Sharon, G., Moore, M. J., Durban, J. W., Tyack, P. L., Fearnbach, H., Leander, S. G., Knowlton, A. R., Warren, A. M., Zani, M. A., Asmutis-Silvia, R., Pettis, H. M., & Apprill, A. (2025). Respiratory microbiomes reflect whale health. The ISME Journal, 19(1). https://doi.org/10.1093/ismejo/wraf231

Miller, Carolyn A., Enrico Pirotta, Grim Sharon, Michael J. Moore, John W. Durban, Peter L. Tyack, and Holly Fearnbach, et al.. "Respiratory microbiomes reflect whale health." The ISME Journal 19, no. 1 (2025). https://doi.org/10.1093/ismejo/wraf231.

Miller, Carolyn A., et al. "Respiratory microbiomes reflect whale health." The ISME Journal, vol. 19, no. 1, 2025. NOAA IR. https://doi.org/10.1093/ismejo/wraf231.
Export RIS Citation Information. TY - AU - Miller, Carolyn A. AU - Pirotta, Enrico AU - Grim Sharon AU - Moore, Michael J. AU - Durban, John W. AU - Tyack, Peter L. AU - Fearnbach, Holly AU - Leander, Samantha G.M. AU - Knowlton, Amy R. AU - Warren, Amy M. AU - Zani, Monica A. AU - Asmutis-Silvia, Regina AU - Pettis, Heather M. AU - Apprill, Amy AB - As important members of the marine ecosystem, baleen whales are frequently managed and protected, but methodology to assess their health remains limited. Recent technological advances, such as the use of drones, support the non-invasive collection of promising health-associated data, including respiratory exhalant microbiota. Here, we considered five health metrics paired with respiratory exhalant samples to examine the utility of characterizing respiratory microorganisms for health diagnostics of North Atlantic right whales (Eubalaena glacialis), one of the most endangered baleen whale species. In 2016-2024, we used drones to collect 103 exhalant samples from 85 individuals to examine the associated microbiome, using amplicon sequencing methods targeting bacteria and archaea. The health status of sampled whales was characterized using an index of body condition derived from full-body vertical drone images, three qualitative assessments obtained from photo-identification imagery, and an existing health and vital rates model. Using an elastic net penalized regression approach, we demonstrate significant relationships between these health metrics and respiratory-associated microorganisms. Bacterial taxa that significantly contributed to the model for the body condition index differed between the thinnest and most robust males in the dataset. The thin whale harbored taxa belonging to the same genus as mammalian pathogens, Clostridium and Peptoniphilus, whereas the robust whale harbored taxa commonly observed in lipid-rich environments, Sediminispirochaeta and Candidatus Gracilibacteria. These differences warrant further investigation into the mechanisms by which bacteria contribute to whale health. Our findings demonstrate the utility of non-invasive multi-metric health models that include respiratory exhalant microbiota for whale health assessment and management. AN - noaa:74378 DO - https://doi.org/10.1093/ismejo/wraf231 IS - 1 J2 - The ISME Journal KW - Photogrammetry KW - Bacteria KW - Northern right whale KW - Drone aircraft KW - Microbiomes KW - Wildlife health assessment KW - North Atlantic right whale KW - Body condition KW - Elastic net regression KW - Microbiomes KW - Northern right whale KW - Drone aircraft KW - Photogrammetry KW - Bacteria PY - 2025 T2 - The ISME Journal T2 - The ISME Journal, Volume 19, Issue 1, January 2025 TI - Respiratory microbiomes reflect whale health VL - 19 UR - https://repository.library.noaa.gov/view/noaa/74378 ER -
Spatiotemporal patterns and implications of suspended Alexandrium catenella cysts in the Pacific Arctic region

Fachon, Evangeline

;

Pickart, Robert S.

2026 | Deep-Sea Research II 225 (2026) 105567 | PDF

The persistent presence of a massive accumulation of resting cysts of the toxic dinoflagellate Alexandrium catenella on the Chukchi shelf represents a significant risk to Pacific Arctic ecosystems, as warming conditions are likely to promote harmful algal blooms of this species. While the majority of cysts are found in the benthos, cysts can also b ...

08/28/2026

Supporting Files

Title : Spatiotemporal patterns and implications of suspended Alexandrium catenella cysts in the Pacific Arctic region Personal Author(s) : Fachon, Evangeline;Pickart, Robert S.;Huang, Jie;Lalande, Catherine;Anderson, Donald M.; Published Date : 2026 Source : Deep-Sea Research II 225 (2026) 105567 DOI : https://doi.org/10.1016/j.dsr2.2025.105567 Journal Title : Deep Sea Research Part II, 225:105567
Fachon, E., Pickart, R. S., Huang, J., Lalande, C., & Anderson, D. M. (2026). Spatiotemporal patterns and implications of suspended Alexandrium catenella cysts in the Pacific Arctic region. Deep Sea Research Part II, 225:105567, 225. https://doi.org/10.1016/j.dsr2.2025.105567

Fachon, Evangeline, Robert S. Pickart, Jie Huang, Catherine Lalande, and Donald M. Anderson. "Spatiotemporal patterns and implications of suspended Alexandrium catenella cysts in the Pacific Arctic region." Deep Sea Research Part II, 225:105567 225 (2026). https://doi.org/10.1016/j.dsr2.2025.105567.

Fachon, Evangeline, et al. "Spatiotemporal patterns and implications of suspended Alexandrium catenella cysts in the Pacific Arctic region." Deep Sea Research Part II, 225:105567, vol. 225, 2026. NOAA IR. https://doi.org/10.1016/j.dsr2.2025.105567.
Export RIS Citation Information. TY - AU - Fachon, Evangeline AU - Pickart, Robert S. AU - Huang, Jie AU - Lalande, Catherine AU - Anderson, Donald M. AB - The persistent presence of a massive accumulation of resting cysts of the toxic dinoflagellate Alexandrium catenella on the Chukchi shelf represents a significant risk to Pacific Arctic ecosystems, as warming conditions are likely to promote harmful algal blooms of this species. While the majority of cysts are found in the benthos, cysts can also be suspended through the water column, allowing them to be transported by currents or to experience elevated temperature and light conditions that may accelerate germination. Spatial patterns of cyst suspension were investigated during a Fall 2020 survey, revealing broad presence of suspended cysts in near-bottom waters overlying benthic cyst accumulations. Enhanced suspension was observed at shallow, well-mixed stations - in some places extending beyond the bottom boundary layer into surface waters. Sinking particles collected continuously from 2017 to 2019 showed seasonal patterns of cyst flux, with export pulses during the late summer and wind-driven resuspension peaking during the fall. To evaluate the potential contribution of resuspension to bloom initiation, a hydrographic climatology of the southern Chukchi Sea was used to estimate cyst germination rates through the water column during the summer (June-September). This analysis was paired with wind-driven 1-D mixing simulations, demonstrating that cyst access to surface waters is enhanced under stormy conditions. While storm events are not currently common during the summer bloom season, a trend towards increasingly windy conditions points towards future potential for resuspended cysts to contribute to blooms in the shallow and warming waters of the Pacific Arctic region. AN - noaa:74377 DO - https://doi.org/10.1016/j.dsr2.2025.105567 J2 - Deep Sea Research Part II, 225:105567 KW - Alexandrium catenella KW - Algal blooms KW - Harmful algal blooms KW - Algal blooms KW - Alexandrium catenella PY - 2026 T2 - Deep Sea Research Part II, 225:105567 T2 - Deep-Sea Research II 225 (2026) 105567 TI - Spatiotemporal patterns and implications of suspended Alexandrium catenella cysts in the Pacific Arctic region VL - 225 UR - https://repository.library.noaa.gov/view/noaa/74377 ER -
Overview of Strand Feeding Behaviors by Estuarine Bottlenose Dolphins (Tursiops erebennus) in Captain Sams Inlet, South Carolina

Rust, Lauren B.

;

Mcfee, Wayne

2026 | Marine Mammal Science 42, no. 3: e70209 | PDF

Strand feeding is a unique foraging strategy where dolphins chase fish onto the banks in the estuaries around Charleston, SC. During routine monitoring shifts, we analyzed strand feeding at a small inlet between Kiawah and Seabrook Islands to understand trends based on season, tide, group size and location. Between 2018-2021, observers recorded 3,1 ...

08/28/2026

Title : Overview of Strand Feeding Behaviors by Estuarine Bottlenose Dolphins (Tursiops erebennus) in Captain Sams Inlet, South Carolina Personal Author(s) : Rust, Lauren B.;Mcfee, Wayne; Published Date : 2026 Source : Marine Mammal Science 42, no. 3: e70209 DOI : https://doi.org/10.1111/mms.70209 Journal Title : Marine Mammal Science
Rust, L. B., & Mcfee, W. (2026). Overview of Strand Feeding Behaviors by Estuarine Bottlenose Dolphins (Tursiops erebennus) in Captain Sams Inlet, South Carolina. Marine Mammal Science, 42(3). https://doi.org/10.1111/mms.70209

Rust, Lauren B. and Wayne Mcfee. "Overview of Strand Feeding Behaviors by Estuarine Bottlenose Dolphins (Tursiops erebennus) in Captain Sams Inlet, South Carolina." Marine Mammal Science 42, no. 3 (2026). https://doi.org/10.1111/mms.70209.

Rust, Lauren B., and Wayne Mcfee "Overview of Strand Feeding Behaviors by Estuarine Bottlenose Dolphins (Tursiops erebennus) in Captain Sams Inlet, South Carolina." Marine Mammal Science, vol. 42, no. 3, 2026. NOAA IR. https://doi.org/10.1111/mms.70209.
Export RIS Citation Information. TY - AU - Rust, Lauren B. AU - Mcfee, Wayne AB - Strand feeding is a unique foraging strategy where dolphins chase fish onto the banks in the estuaries around Charleston, SC. During routine monitoring shifts, we analyzed strand feeding at a small inlet between Kiawah and Seabrook Islands to understand trends based on season, tide, group size and location. Between 2018-2021, observers recorded 3,135 strand feeding events over 1,269 field days. Strand feeding was recorded each month over the study period with a 6-month seasonal peak between May-October (p<2.2e-16). Strand feeding occurred the most between the hour before and the hour after low tide (p<2.2e-16). The dolphin's group size varied between 1-6 dolphins with a median group size of 3 (p<2.2e-16). The location (or zone) within the inlet of strand feeding varied with the tidal cycle but showed a strong preference for zones 3 and 4 which had the steepest slopes (11° and 16° respectively) (p<2.2e-16). Strand feeding at this location occurs daily and has proven to be a critical feeding ground for local dolphins who strand feed here. These data show the frequency of this behavior at this site and should support efforts to protect it and provide the dolphins a space to feed undisturbed. AN - noaa:74376 DO - https://doi.org/10.1111/mms.70209 IS - 3 J2 - Marine Mammal Science KW - Bottlenose dolphin KW - Tursiops erebennus KW - Captain Sams Inlet, South Carolina KW - Strand feeding KW - Critical feeding habitat KW - Bottlenose dolphin PY - 2026 T2 - Marine Mammal Science T2 - Marine Mammal Science 42, no. 3: e70209 TI - Overview of Strand Feeding Behaviors by Estuarine Bottlenose Dolphins (Tursiops erebennus) in Captain Sams Inlet, South Carolina VL - 42 UR - https://repository.library.noaa.gov/view/noaa/74376 ER -
Hidden markov mark-recapture modeling highlights transboundary exchange for northeast pacific sablefish

Kapur, Maia

;

Luke Rogers, Luke

2025 | Fisheries Research 289 (2025) 107498 | PDF

Developing robust fisheries management advice requires understanding fish population distribution and movement in relation to harvesting and management boundaries. Traditional stock assessment models often assume homogeneous populations with negligible transboundary movement, an assumption that may lead to undesirable management outcomes when viola ...

08/28/2026

Title : Hidden markov mark-recapture modeling highlights transboundary exchange for northeast pacific sablefish Personal Author(s) : Kapur, Maia;Luke Rogers, Luke;Goethel, Daniel R.;Cheng, Matthew L.H.;Hanselman, Dana;Echave, Katy;Haltuch, Melissa A.;Holt, Kendra R.;English, Philina;Berger, Aaron M.;Connors, Brendan; Published Date : 2025 Source : Fisheries Research 289 (2025) 107498 DOI : https://doi.org/10.1016/j.fishres.2025.107498 Journal Title : Fisheries Research
Kapur, M., Luke Rogers, L., Goethel, D. R., Cheng, M. L., Hanselman, D., Echave, K., Haltuch, M. A., Holt, K. R., English, P., Berger, A. M., & Connors, B. (2025). Hidden markov mark-recapture modeling highlights transboundary exchange for northeast pacific sablefish. Fisheries Research, 289. https://doi.org/10.1016/j.fishres.2025.107498

Kapur, Maia, Luke Luke Rogers, Daniel R. Goethel, Matthew L.H. Cheng, Dana Hanselman, Katy Echave, and Melissa A. Haltuch, et al.. "Hidden markov mark-recapture modeling highlights transboundary exchange for northeast pacific sablefish." Fisheries Research 289 (2025). https://doi.org/10.1016/j.fishres.2025.107498.

Kapur, Maia, et al. "Hidden markov mark-recapture modeling highlights transboundary exchange for northeast pacific sablefish." Fisheries Research, vol. 289, 2025. NOAA IR. https://doi.org/10.1016/j.fishres.2025.107498.
Export RIS Citation Information. TY - AU - Kapur, Maia AU - Luke Rogers, Luke AU - Goethel, Daniel R. AU - Cheng, Matthew L.H. AU - Hanselman, Dana AU - Echave, Katy AU - Haltuch, Melissa A. AU - Holt, Kendra R. AU - English, Philina AU - Berger, Aaron M. AU - Connors, Brendan AB - Developing robust fisheries management advice requires understanding fish population distribution and movement in relation to harvesting and management boundaries. Traditional stock assessment models often assume homogeneous populations with negligible transboundary movement, an assumption that may lead to undesirable management outcomes when violated. We developed a hidden Markov movement model and fitted it to almost forty years (1979-2018) of conventional tagging data for northeast Pacific sablefish (Anoplopoma fimbria), a commercially valuable species distributed across the northeast Pacific. This is the first time that sablefish movement has been evaluated at this spatial scale and included transboundary migration. Estimated movement rates were then combined with stock assessment abundance estimates to quantify the magnitude of exchange between management regions. Several sensitivity analyses were conducted to evaluate the robustness of the model assumptions regarding size structure, time-at-liberty, size-transition and parameter uncertainty. Sablefish exhibited long-distance movements. Notably, British Columbia acted as a transition zone for sablefish movement between regions and a net recipient for sablefish abundance, receiving net immigration from both Alaska and the California Current, a pattern influenced by regional abundance differences. Differences in movement rates between size classes were modest, although larger sablefish in Alaska were more likely to move into British Columbia compared to smaller fish. Our findings, consistent with previous smaller-scale sablefish movement research, uniquely quantify the demographic exchange across management regions, highlighting a large contribution of sablefish from Alaska and the California Current to British Columbia. This study emphasizes the need to account for the transboundary nature of sablefish within assessment and management frameworks. Collaborative, international efforts in monitoring and data sharing will be essential for ensuring the sustainable harvest of transboundary stocks like sablefish. AN - noaa:74375 DO - https://doi.org/10.1016/j.fishres.2025.107498 J2 - Fisheries Research KW - Sablefish KW - Fishery management KW - Fish tagging KW - Movement KW - Mark-recapture KW - Transboundary KW - Sablefish KW - Fish tagging KW - Fishery management PY - 2025 T2 - Fisheries Research T2 - Fisheries Research 289 (2025) 107498 TI - Hidden markov mark-recapture modeling highlights transboundary exchange for northeast pacific sablefish VL - 289 UR - https://repository.library.noaa.gov/view/noaa/74375 ER -
Fat fish, thin fish: regime shifts in fish condition and environmental drivers

Smith, Laurel A. ;

Gamble, Robert J.

2026 | Mar Ecol Prog Ser 789:meps15175 (2026) | PDF

Fish condition is an indicator of fish health, where fatter fish are generally healthier and produce more viable recruitment. Many factors may contribute to fish condition, including temperature, food availability and quality, competition and even fishing pressure. In this study, relative condition factors (Kn) were analyzed from 1992-2023 for 50 f ...

08/28/2026

Supporting Files

Title : Fat fish, thin fish: regime shifts in fish condition and environmental drivers Personal Author(s) : Smith, Laurel A.;Gamble, Robert J.;Adams, Charles F.;Beet, Andrew R.;Curti, Kiersten L.;Deroba, Jonathan J.;Fogarty, Micahel J.;Honda, Isabel A.;Ji, Rubao;Llopiz, Jowl K.;Melrose, D. Christopher;Morse, Ryan;Runge, Jeffrey A.;Smith, Brian E.;Walsh, Harvey J.; Published Date : 2026 Source : Mar Ecol Prog Ser 789:meps15175 (2026) DOI : https://doi.org/10.3354/meps15175 Journal Title : Marine Ecology Progress Series
Smith, L. A., Gamble, R. J., Adams, C. F., Beet, A. R., Curti, K. L., Deroba, J. J., Fogarty, M. J., Honda, I. A., Ji, R., Llopiz, J. K., Melrose, D. C., Morse, R., Runge, J. A., Smith, B. E., & Walsh, H. J. (2026). Fat fish, thin fish: regime shifts in fish condition and environmental drivers. Marine Ecology Progress Series, 789. https://doi.org/10.3354/meps15175

Smith, Laurel A., Robert J. Gamble, Charles F. Adams, Andrew R. Beet, Kiersten L. Curti, Jonathan J. Deroba, and Micahel J. Fogarty, et al.. "Fat fish, thin fish: regime shifts in fish condition and environmental drivers." Marine Ecology Progress Series 789 (2026). https://doi.org/10.3354/meps15175.

Smith, Laurel A., et al. "Fat fish, thin fish: regime shifts in fish condition and environmental drivers." Marine Ecology Progress Series, vol. 789, 2026. NOAA IR. https://doi.org/10.3354/meps15175.
Export RIS Citation Information. TY - AU - Smith, Laurel A. AU - Gamble, Robert J. AU - Adams, Charles F. AU - Beet, Andrew R. AU - Curti, Kiersten L. AU - Deroba, Jonathan J. AU - Fogarty, Micahel J. AU - Honda, Isabel A. AU - Ji, Rubao AU - Llopiz, Jowl K. AU - Melrose, D. Christopher AU - Morse, Ryan AU - Runge, Jeffrey A. AU - Smith, Brian E. AU - Walsh, Harvey J. AB - Fish condition is an indicator of fish health, where fatter fish are generally healthier and produce more viable recruitment. Many factors may contribute to fish condition, including temperature, food availability and quality, competition and even fishing pressure. In this study, relative condition factors (Kn) were analyzed from 1992-2023 for 50 finfish species regularly caught on the Northeast Fisheries Science Center fall bottom trawl survey. Declines in condition occurred around the year 2001 across most fish species on the Northeast US Continental Shelf, with many species recovering around 2009. These changes in condition have direct implications for fish recruitment and mortality, and may in turn impact stock assessments, catch quotas and management. Similar changepoints were found in bottom and sea surface temperatures, zooplankton anomalies and copepod size structure, potentially indicating a bottom-up regime shift. Determining relative condition changepoints along with environmental drivers has enabled stock assessments to base biological reference points on ecosystem-based time stanzas specific to the stock. Empirical dynamic modeling analyses suggest causal relationships of these environmental drivers with Atlantic mackerel and butterfish condition, further strengthening the justification of using these relationships in assessments. AN - noaa:74374 DO - https://doi.org/10.3354/meps15175 J2 - Marine Ecology Progress Series KW - Fish stock assessment KW - Fishes KW - Regime shifts KW - Fish condition KW - Environmental drivers KW - Application to management KW - Fishes KW - Fish stock assessment PY - 2026 T2 - Marine Ecology Progress Series T2 - Mar Ecol Prog Ser 789:meps15175 (2026) TI - Fat fish, thin fish: regime shifts in fish condition and environmental drivers VL - 789 UR - https://repository.library.noaa.gov/view/noaa/74374 ER -
Adaptive potential of Puget Sound Chinook Salmon seawater tolerance

Malick, Michael J.

;

Berejikian, Barry A.

2026 | Canadian Journal of Fisheries and Aquatic Sciences. 83: 1-13 | PDF

Pacific salmon have evolved to use estuarine habitats as they transition from freshwater to ocean environments. These estuary habitats, however, are severely reduced compared to historical conditions and are rapidly changing due to environmental change and human development. To assess whether at-risk populations have the plasticity or evolutionary ...

08/28/2026

Supporting Files

Title : Adaptive potential of Puget Sound Chinook Salmon seawater tolerance Personal Author(s) : Malick, Michael J.;Berejikian, Barry A.;Kuligowski, David;Nichols, Krista M.; Published Date : 2026 Source : Canadian Journal of Fisheries and Aquatic Sciences. 83: 1-13 DOI : https://doi.org/10.1139/cjfas-2026-0078 Journal Title : Canadian Journal of Fisheries and Aquatic Sciences
Malick, M. J., Berejikian, B. A., Kuligowski, D., & Nichols, K. M. (2026). Adaptive potential of Puget Sound Chinook Salmon seawater tolerance. Canadian Journal of Fisheries and Aquatic Sciences, 83. https://doi.org/10.1139/cjfas-2026-0078

Malick, Michael J., Barry A. Berejikian, David Kuligowski, and Krista M. Nichols. "Adaptive potential of Puget Sound Chinook Salmon seawater tolerance." Canadian Journal of Fisheries and Aquatic Sciences 83 (2026). https://doi.org/10.1139/cjfas-2026-0078.

Malick, Michael J., et al. "Adaptive potential of Puget Sound Chinook Salmon seawater tolerance." Canadian Journal of Fisheries and Aquatic Sciences, vol. 83, 2026. NOAA IR. https://doi.org/10.1139/cjfas-2026-0078.
Export RIS Citation Information. TY - AU - Malick, Michael J. AU - Berejikian, Barry A. AU - Kuligowski, David AU - Nichols, Krista M. AB - Pacific salmon have evolved to use estuarine habitats as they transition from freshwater to ocean environments. These estuary habitats, however, are severely reduced compared to historical conditions and are rapidly changing due to environmental change and human development. To assess whether at-risk populations have the plasticity or evolutionary capacity to adapt, we quantified phenotypic and genetic variability in size-at-migration and seawater tolerance across three Puget Sound Chinook populations in a common-garden environment. We found (1) strong evidence for population differences in size-at-migration and subsequent size-selective seawater survival, (2) a size threshold of 49 mm required to achieve 50% survival in seawater that was consistent across populations, and (3) moderate heritability of size-at-migration and moderate-low heritability of seawater survival with strong maternal effects. Combined, our results suggest that evolutionary adaptation is a viable pathway for Puget Sound Chinook Salmon populations to adapt to rapidly changing estuary conditions. AN - noaa:74373 DO - https://doi.org/10.1139/cjfas-2026-0078 J2 - Canadian Journal of Fisheries and Aquatic Sciences KW - Seawater KW - Chinook salmon KW - Adaptation (Biology) KW - Estuaries KW - Evolution KW - Salinity KW - Chinook salmon KW - Salinity KW - Seawater KW - Estuaries KW - Evolution KW - Adaptation (Biology) PY - 2026 T2 - Canadian Journal of Fisheries and Aquatic Sciences T2 - Canadian Journal of Fisheries and Aquatic Sciences. 83: 1-13 TI - Adaptive potential of Puget Sound Chinook Salmon seawater tolerance VL - 83 UR - https://repository.library.noaa.gov/view/noaa/74373 ER -
Ensuring adaptability and applicability of long-term contaminant monitoring initiatives: A discussion of NOAA's National Mussel Watch Program current practices and future approaches

Castillo, Nicholas A.

;

Swam-Jaramillo, Lauren M.

2026 | Environ Monit Assess 198, 815 (2026) | PDF

The maintenance of long-term contaminant monitoring programs, which are critical tools for establishing and providing the historical baselines necessary to guide future management and research efforts, faces inherent challenges related to evolving management priorities, budgetary constraints, variable end-user needs, and the dynamic nature of the s ...

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Title : Ensuring adaptability and applicability of long-term contaminant monitoring initiatives: A discussion of NOAA's National Mussel Watch Program current practices and future approaches Personal Author(s) : Castillo, Nicholas A.;Swam-Jaramillo, Lauren M.;Rider, Mary M.;Morozova, Arina O.;Kimbrough, Kimani L.;Davenport, Erik D.;Edwards, Michael A.;Arzayus, L. Felipe;Apeti, Dennis A.; Published Date : 2026 Source : Environ Monit Assess 198, 815 (2026) DOI : https://doi.org/10.1007/s10661-026-15641-2 Journal Title : Environmental Monitoring and Assessment
Castillo, N. A., Swam-Jaramillo, L. M., Rider, M. M., Morozova, A. O., Kimbrough, K. L., Davenport, E. D., Edwards, M. A., Arzayus, L. F., & Apeti, D. A. (2026). Ensuring adaptability and applicability of long-term contaminant monitoring initiatives: A discussion of NOAA's National Mussel Watch Program current practices and future approaches. Environmental Monitoring and Assessment, 198. https://doi.org/10.1007/s10661-026-15641-2

Castillo, Nicholas A., Lauren M. Swam-Jaramillo, Mary M. Rider, Arina O. Morozova, Kimani L. Kimbrough, Erik D. Davenport, Michael A. Edwards, L. Felipe Arzayus, and Dennis A. Apeti. "Ensuring adaptability and applicability of long-term contaminant monitoring initiatives: A discussion of NOAA's National Mussel Watch Program current practices and future approaches." Environmental Monitoring and Assessment 198 (2026). https://doi.org/10.1007/s10661-026-15641-2.

Castillo, Nicholas A., et al. "Ensuring adaptability and applicability of long-term contaminant monitoring initiatives: A discussion of NOAA's National Mussel Watch Program current practices and future approaches." Environmental Monitoring and Assessment, vol. 198, 2026. NOAA IR. https://doi.org/10.1007/s10661-026-15641-2.
Export RIS Citation Information. TY - AU - Castillo, Nicholas A. AU - Swam-Jaramillo, Lauren M. AU - Rider, Mary M. AU - Morozova, Arina O. AU - Kimbrough, Kimani L. AU - Davenport, Erik D. AU - Edwards, Michael A. AU - Arzayus, L. Felipe AU - Apeti, Dennis A. AB - The maintenance of long-term contaminant monitoring programs, which are critical tools for establishing and providing the historical baselines necessary to guide future management and research efforts, faces inherent challenges related to evolving management priorities, budgetary constraints, variable end-user needs, and the dynamic nature of the systems in which they operate. This short communication explores these difficulties, proposes adaptive strategies, and highlights the National Oceanic and Atmospheric Administration's (NOAA) 40-year continuous national contaminant monitoring initiative, the National Mussel Watch Program (MWP), as a principal case study. We identify and discuss three adaptive strategies to ensure the continued applicability and longevity of such programs: (1) emphasizing stakeholder engagement; (2) refining data collection, evaluation, and analysis; and (3) ensuring data accessibility. Through the implementation of these adaptive measures, long-term contaminant monitoring programs, such as the MWP, can continue to fulfill programmatic mandates, serve as the provider of applicable baseline contaminant data, navigate shifts in contaminant monitoring priorities, and tailor data products to best meet the present and future needs of managers and stakeholders. AN - noaa:74372 DO - https://doi.org/10.1007/s10661-026-15641-2 J2 - Environmental Monitoring and Assessment KW - Mussels KW - Water-Pollution KW - National Mussel Watch Program (MWP) KW - Contaminant monitoring programs KW - Mussels KW - Water-Pollution PY - 2026 T2 - Environmental Monitoring and Assessment T2 - Environ Monit Assess 198, 815 (2026) TI - Ensuring adaptability and applicability of long-term contaminant monitoring initiatives: A discussion of NOAA's National Mussel Watch Program current practices and future approaches VL - 198 UR - https://repository.library.noaa.gov/view/noaa/74372 ER -
Measuring Success: Plant Growth and Sand Movement in a Coastal Dune Restoration on Tybee Island, USA

Matzke, Shannon ;

Leege, Lissa M.

2025 | Ecological Restoration, May 2025, 43 (2) 102-115 | PDF

Coastal communities are developing rapidly despite the increased risks of sea level rise and hurricanes. Dunes are vital to coastal protection, particularly when they are colonized by native plant species that stabilize dunes and accumulate sand. Dune construction and subsequent plantings with native vegetation can be used as a nature-based solutio ...

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Title : Measuring Success: Plant Growth and Sand Movement in a Coastal Dune Restoration on Tybee Island, USA Personal Author(s) : Matzke, Shannon;Leege, Lissa M.; Published Date : 2025 Source : Ecological Restoration, May 2025, 43 (2) 102-115 DOI : https://doi.org/10.3368/er.43.2.102 Journal Title : Ecological Restoration
Matzke, S., & Leege, L. M. (2025). Measuring Success: Plant Growth and Sand Movement in a Coastal Dune Restoration on Tybee Island, USA. Ecological Restoration, 43(2). https://doi.org/10.3368/er.43.2.102

Matzke, Shannon and Lissa M. Leege. "Measuring Success: Plant Growth and Sand Movement in a Coastal Dune Restoration on Tybee Island, USA." Ecological Restoration 43, no. 2 (2025). https://doi.org/10.3368/er.43.2.102.

Matzke, Shannon, and Lissa M. Leege "Measuring Success: Plant Growth and Sand Movement in a Coastal Dune Restoration on Tybee Island, USA." Ecological Restoration, vol. 43, no. 2, 2025. NOAA IR. https://doi.org/10.3368/er.43.2.102.
Export RIS Citation Information. TY - AU - Matzke, Shannon AU - Leege, Lissa M. AB - Coastal communities are developing rapidly despite the increased risks of sea level rise and hurricanes. Dunes are vital to coastal protection, particularly when they are colonized by native plant species that stabilize dunes and accumulate sand. Dune construction and subsequent plantings with native vegetation can be used as a nature-based solution to climate change, but more studies are needed to fully understand associated best practices. We conducted a 14-month study on Tybee Island, GA, USA, the site of new dune construction, to examine the effects of planting density on plant survivorship, plant growth and sand accretion. We also compared accretion rates to those on pre-existing dunes on Tybee Island and unvegetated sites on the constructed dune. Survivorship of newly installed plants on the constructed dune was 96.9%, and these plants on average doubled in percent cover and height and increased in stem density by 10 stems. After 14 months, percent cover and average height of plants on the constructed dune were the same as those on the reference dune, but growth of newly installed plants decreased with increased density of planting. Accretion was highest in the reference dune, followed by the planted sites, and accretion was nearly 0 cm in the bare sites. Planting density was the best predictor of sand accretion, with accretion increasing with higher planting densities. While there are limitations of a two-season study, our results offer a framework for future studies of coastal restoration projects and have the potential to be transferable to other barrier islands. AN - noaa:74371 DO - https://doi.org/10.3368/er.43.2.102 IS - 2 J2 - Ecological Restoration KW - Barrier islands KW - Sand dunes KW - Functional groups KW - Sand dune restoration KW - Ecology KW - Habitat KW - Nature based infrastructure KW - Barrier islands KW - Ecology KW - Functional groups KW - Sand dunes KW - Sand dune restoration PY - 2025 T2 - Ecological Restoration T2 - Ecological Restoration, May 2025, 43 (2) 102-115 TI - Measuring Success: Plant Growth and Sand Movement in a Coastal Dune Restoration on Tybee Island, USA VL - 43 UR - https://repository.library.noaa.gov/view/noaa/74371 ER -
Site-specific ontogenetic drivers of mercury concentrations in American alligators

Zemaitis, Kristen J. ;

Rainwater, Thomas R.

2025 | Environmental Toxicology and Chemistry, Volume 44, Issue 6, June 2025, Pages 1611-1621 | PDF

Contaminant body burdens are determined by complex interactions between contaminant inputs into the environment, local ecological dynamics, and organismal ontogeny. Although a naturally occurring element, mercury (Hg) is a potent neurotoxin, commonly assessed in contaminant body burdens. Anthropogenic activity has affected its spatial distribution, ...

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Title : Site-specific ontogenetic drivers of mercury concentrations in American alligators Personal Author(s) : Zemaitis, Kristen J.;Rainwater, Thomas R.;Moore, Yank;Andrews, Kimberly M.;Parrott, Benjamin B.;Byers, James E.; Published Date : 2025 Source : Environmental Toxicology and Chemistry, Volume 44, Issue 6, June 2025, Pages 1611-1621 DOI : https://doi.org/10.1093/etojnl/vgaf060 Journal Title : Environmental Toxicology and Chemistry
Zemaitis, K. J., Rainwater, T. R., Moore, Y., Andrews, K. M., Parrott, B. B., & Byers, J. E. (2025). Site-specific ontogenetic drivers of mercury concentrations in American alligators. Environmental Toxicology and Chemistry, 44(6). https://doi.org/10.1093/etojnl/vgaf060

Zemaitis, Kristen J., Thomas R. Rainwater, Yank Moore, Kimberly M. Andrews, Benjamin B. Parrott, and James E. Byers. "Site-specific ontogenetic drivers of mercury concentrations in American alligators." Environmental Toxicology and Chemistry 44, no. 6 (2025). https://doi.org/10.1093/etojnl/vgaf060.

Zemaitis, Kristen J., et al. "Site-specific ontogenetic drivers of mercury concentrations in American alligators." Environmental Toxicology and Chemistry, vol. 44, no. 6, 2025. NOAA IR. https://doi.org/10.1093/etojnl/vgaf060.
Export RIS Citation Information. TY - AU - Zemaitis, Kristen J. AU - Rainwater, Thomas R. AU - Moore, Yank AU - Andrews, Kimberly M. AU - Parrott, Benjamin B. AU - Byers, James E. AB - Contaminant body burdens are determined by complex interactions between contaminant inputs into the environment, local ecological dynamics, and organismal ontogeny. Although a naturally occurring element, mercury (Hg) is a potent neurotoxin, commonly assessed in contaminant body burdens. Anthropogenic activity has affected its spatial distribution, resulting in regional "hotspots" with elevated Hg concentrations. Due to the propensity of methylated Hg to bioaccumulate within individuals over time and biomagnify across trophic levels, long-lived apex predators can carry substantial body burdens in affected ecosystems. However, the role of an organism's ontogeny and habitat in shaping individual Hg concentrations, especially within and across species, is not well understood. We assessed total Hg, carbon (δ13C), and nitrogen (δ15N) isotopic ratios in whole blood samples (n = 133) across three distinct habitats in the southeastern United States to investigate how size and dietary shifts in the American alligator (Alligator mississippiensis) influence Hg accumulation. Mercury concentrations were approximately eightfold higher in alligators inhabiting the Okefenokee Swamp, Georgia (mean = 0.62 mg/kg) compared with those inhabiting coastal habitats (Jekyll Island, Georgia and Yawkey Wildlife Center, South Carolina). Whereas individual size and nitrogen isotope signatures generally displayed positive relationships with Hg concentrations, model selection approaches revealed these relationships varied across populations, likely in response to site-specific differences in environmental Hg concentrations and life history attributes of the alligators. Collectively, our findings demonstrate that although Hg concentrations in A. mississippiensis are highly influenced by differences between sites, diet and body size can sometimes additionally affect individual variation within populations, suggesting that organismal ontogeny interacts with site-specific contamination and ecological factors to affect Hg body burdens. AN - noaa:74370 DO - https://doi.org/10.1093/etojnl/vgaf060 IS - 6 J2 - Environmental Toxicology and Chemistry KW - Bioaccumulation KW - Indicators (Biology) KW - Environmental toxicology KW - Bioindicators KW - Biomagnification KW - Diet KW - Ecotoxicology KW - Bioaccumulation KW - Indicators (Biology) KW - Environmental toxicology PY - 2025 T2 - Environmental Toxicology and Chemistry T2 - Environmental Toxicology and Chemistry, Volume 44, Issue 6, June 2025, Pages 1611-1621 TI - Site-specific ontogenetic drivers of mercury concentrations in American alligators VL - 44 UR - https://repository.library.noaa.gov/view/noaa/74370 ER -
Fisher participation in citizen science of the US South Atlantic: Ethical concerns about engagement

Tookes, J. Sweeney

;

Yandle, Tracy

2025 | Maritime Studies 24, 11 (2025) | PDF

This study explores commercial and charter fisher perspectives on fisheries management within the South Atlantic region of the United States, to inform potential future citizen science projects. Using qualitative and quantitative methods, we investigated fisher participation, trust in management, and perceptions of regulatory practices. Data reveal ...

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Title : Fisher participation in citizen science of the US South Atlantic: Ethical concerns about engagement Personal Author(s) : Tookes, J. Sweeney;Yandle, Tracy;Fluech, Bryan; Published Date : 2025 Source : Maritime Studies 24, 11 (2025) DOI : https://doi.org/10.1007/s40152-024-00399-5 Journal Title : Maritime Studies
Tookes, J. S., Yandle, T., & Fluech, B. (2025). Fisher participation in citizen science of the US South Atlantic: Ethical concerns about engagement. Maritime Studies, 24. https://doi.org/10.1007/s40152-024-00399-5

Tookes, J. Sweeney, Tracy Yandle, and Bryan Fluech. "Fisher participation in citizen science of the US South Atlantic: Ethical concerns about engagement." Maritime Studies 24 (2025). https://doi.org/10.1007/s40152-024-00399-5.

Tookes, J. Sweeney, et al. "Fisher participation in citizen science of the US South Atlantic: Ethical concerns about engagement." Maritime Studies, vol. 24, 2025. NOAA IR. https://doi.org/10.1007/s40152-024-00399-5.
Export RIS Citation Information. TY - AU - Tookes, J. Sweeney AU - Yandle, Tracy AU - Fluech, Bryan AB - This study explores commercial and charter fisher perspectives on fisheries management within the South Atlantic region of the United States, to inform potential future citizen science projects. Using qualitative and quantitative methods, we investigated fisher participation, trust in management, and perceptions of regulatory practices. Data reveals dissonance between fishers' experiential knowledge and the scientific approaches underpinning management decisions, and distrust in managers and scientific data. Fishers' highlight perceived neglect of their expertise and concerns, and feel marginalized and disillusioned with the system. Findings are relevant to the potential for successful citizen science in the region. We introduce the concept of "moral discord" to encapsulate this ethical dilemma: fishers obliged to comply with a system they distrust, yet potentially benefiting or suffering from outcomes of voluntary efforts in citizen science initiatives. This paper addresses the need for researchers to reflect on the ethical implications of engaging fishers in studies that may exacerbate their sense of disenfranchisement. We offer criteria for assessing whether a citizen science project poses a risk of moral discord for participants, and propose guidance for identifying ways that citizen science projects can reduce ethical risks such as collaboration, transparency, and alignment with fishers' needs to rebuild trust. AN - noaa:74369 DO - https://doi.org/10.1007/s40152-024-00399-5 J2 - Maritime Studies KW - Ethics KW - Fishery management KW - Fisheries KW - Fishers KW - Fishermen KW - Citizen science KW - Collaborative research KW - Fisher engagement KW - US South Atlantic KW - Moral discord KW - Moral injury KW - Fishery management KW - Fisheries KW - Fishers KW - Ethics PY - 2025 T2 - Maritime Studies T2 - Maritime Studies 24, 11 (2025) TI - Fisher participation in citizen science of the US South Atlantic: Ethical concerns about engagement VL - 24 UR - https://repository.library.noaa.gov/view/noaa/74369 ER -
Skin Defenses and Host-Environment Microbiome Interactions in Spotted Salamanders

Urrutia-Carter, Julian

;

Madison, Joseph D.

2025 | Integrative and Comparative Biology , volume 65, number 3, pp. 736-746 | PDF

Emerging infectious diseases have been of particular interest as a major threat to global biodiversity. In amphibians, two fungal sister taxa, Batrachochytrium dendrobatidis (Bd) and Batrachochytrium salamandrivorans (Bsal), along with the viral pathogen ranavirus, have affected global populations. Factors such as host traits, abiotic and biotic en ...

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Supporting Files

Title : Skin Defenses and Host-Environment Microbiome Interactions in Spotted Salamanders Personal Author(s) : Urrutia-Carter, Julian;Madison, Joseph D.;Frederick, John A.;Muletz Wolz, Carly R.; Published Date : 2025 Source : Integrative and Comparative Biology , volume 65, number 3, pp. 736-746 DOI : http://doi.org/10.1093/icb/icaf098 Journal Title : Integrative and Comparative Biology
Urrutia-Carter, J., Madison, J. D., Frederick, J. A., & Muletz Wolz, C. R. (2025). Skin Defenses and Host-Environment Microbiome Interactions in Spotted Salamanders. Integrative and Comparative Biology, 65(3). http://doi.org/10.1093/icb/icaf098

Urrutia-Carter, Julian, Joseph D. Madison, John A. Frederick, and Carly R. Muletz Wolz. "Skin Defenses and Host-Environment Microbiome Interactions in Spotted Salamanders." Integrative and Comparative Biology 65, no. 3 (2025). http://doi.org/10.1093/icb/icaf098.

Urrutia-Carter, Julian, et al. "Skin Defenses and Host-Environment Microbiome Interactions in Spotted Salamanders." Integrative and Comparative Biology, vol. 65, no. 3, 2025. NOAA IR. http://doi.org/10.1093/icb/icaf098.
Export RIS Citation Information. TY - AU - Urrutia-Carter, Julian AU - Madison, Joseph D. AU - Frederick, John A. AU - Muletz Wolz, Carly R. AB - Emerging infectious diseases have been of particular interest as a major threat to global biodiversity. In amphibians, two fungal sister taxa, Batrachochytrium dendrobatidis (Bd) and Batrachochytrium salamandrivorans (Bsal), along with the viral pathogen ranavirus, have affected global populations. Factors such as host traits, abiotic and biotic environmental conditions, and pathogen prevalence contribute to species-specific disease susceptibility. The eastern United States is home to the Appalachian Mountain system, known as a "hotspot" for salamander biodiversity. Bd and ranavirus are present throughout the Appalachians, and a Bsal emergence could be imminent. Throughout the Appalachians are the spotted salamanders, Ambystoma maculatum, a mostly terrestrial salamander that participates in mass breeding migration to ponds and vernal pools in the late spring. Previous experimental studies have shown that spotted salamanders appear to be resistant to Bd and Bsal infection, but the mechanisms behind Bd defense remain unknown. Spotted salamanders emerging from their overwintering habitats were hypothesized to have potent anti-Bd function expressed in their mucus and in their skin microbiomes, as a countermeasure to annual Bd re-emergence. We used non-invasive sampling at two pools during the spotted salamander annual breeding event to (I) determine pathogen prevalence, (II) quantify the antifungal potential of salamander skin mucus, and (III) characterize the diversity and composition of the salamander skin microbiome and contrast it to that of the corresponding environmental microbiome. We did not detect any Bd, Bsal, or ranavirus in the salamanders. The salamander mucus did not inhibit Bd growth in vitro, and anti-Bd bacteria were at low relative abundance in the microbiome. The salamander microbiome sourced a proportion of bacteria from the environment and appeared to select rare taxa from their respective pools; however, their functional relevance in pathogen defense is unclear. Our results suggest that the spotted salamander mucosal secretions and skin microbiome are not the mechanisms of defense against Bd. Rather, elements not captured by the mucosome (e.g., immune cell gene expression) may confer resistance. This study contributes to the understanding of salamander intraspecies variation in disease susceptibility. AN - noaa:74368 DO - http://doi.org/10.1093/icb/icaf098 IS - 3 J2 - Integrative and Comparative Biology KW - Spotted salamander KW - Batrachochytrium dendrobatidis KW - Amphibians KW - Batrachochytrium salamandrivorans KW - Ambystoma maculatum KW - Batrachochytrium dendrobatidis KW - Amphibians KW - Spotted salamander PY - 2025 T2 - Integrative and Comparative Biology T2 - Integrative and Comparative Biology , volume 65, number 3, pp. 736-746 TI - Skin Defenses and Host-Environment Microbiome Interactions in Spotted Salamanders VL - 65 UR - https://repository.library.noaa.gov/view/noaa/74368 ER -

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