i
Hydrodynamic Connectivity of Habitats of Deep-Water Corals in Corsair Canyon, Northwest Atlantic: A Case for Cross-Boundary Conservation
-
2019
Source: Front. Mar. Sci., 29 March 2019
[PDF-8.90 MB]
Select the Download button to view the document
This document is over 5mb in size and cannot be previewed
Details:
-
Journal Title:Frontiers in Marine Science
-
Personal Author:
-
NOAA Program & Office:
-
Description:Deep-water corals are significant ecosystem engineers that provide habitat complexity in the deep sea. They are indicator species of vulnerable marine ecosystems because of their slow growth and longevity, characteristics that can prolong recovery from disturbances such as fishing. For populations with discontinuous distributions, such as aggregations of deep-water corals, population connectivity is critical in regulating persistence and recovery and is one of the recommended elements in the design of area-based conservation measures. In this study, we assessed potential pathways of connectivity in the Corsair Canyon Conservation Area, off Nova Scotia, Canada, for populations of the deep-water corals Paragorgia arborea and Primnoa resedaeformis discovered in 2014 and afforded protection in 2016. Corsair Canyon located in the Canadian EEZ, ∼ 20 km from the border between Canada and the United States, is potentially receiving larvae from either the Canadian or US EEZ. In Corsair Canyon, P. arborea was very abundant at depths 484-856 m and some colonies of P. arborea were > 2 m high. These are the locally densest aggregations of P. arborea we have detected on the continental slope off Nova Scotia. We also recorded P. resedaeformis at similar depths. Colonies of both species were most often seen attached perpendicularly to a rock face, and into the current. We assessed hydrodynamic connectivity between Corsair Canyon and other canyons to the northeast and southwest along the continental slope with known occurrences of the two corals, using the ocean model Finite-Volume Community Ocean Model (University of Massachusetts-Dartmouth). Our results indicate that estimated hydrodynamic connectivity originates consistently from canyons to the southwest of Corsair Canyon, particularly Georges, and Heezen Canyons. Of these, only Georges Canyon is within Canada’s EEZ and based on our data has very sparse populations of corals that can supply potential recruits. Predicted connectivity with the Northeast Channel Coral Conservation Area occurs in winter and spring, but the complexity of circulation in those seasons needs to be resolved to confirm the strength of this connection. Our results strongly suggest that cross-boundary coordination is essential in the conservation of aggregations of deep-water corals in the northwest Atlantic, by ensuring larval exchange and connectivity.
-
Source:Front. Mar. Sci., 29 March 2019
-
Document Type:
-
Rights Information:CC BY
-
Compliance:Submitted
-
Main Document Checksum:urn:sha256:83f54c3c503f6da007d1507a60a61935adbc76087b0674636e291367eb85369c
-
File Type:
Supporting Files
-
No Additional Files
More +
Related Documents
-
Personal Author:Judd, Laura M. ;Al-Saadi, Jassim A....2018 | Front. Environ. Sci., 15 August 2018Description:With the near-future launch of geostationary Earth orbit (GEO) pollution monitoring satellite instruments over North America, East Asia, and Europe, t...Personal Author:Farfan, Gabriela A. ;Cordes, Erik E....2018 | Front. Mar. Sci., 10 December 2018Description:In an ocean with rapidly changing chemistry, studies have assessed coral skeletal health under projected ocean acidification (OA) scenarios by charact...Personal Author:Simoniello, Christina ;Jencks, Jennifer...2019 | Front. Mar. Sci., 07 May 2019Description:The democratization of ocean observation has the potential to add millions of observations every day. Though not a solution for all ocean monitoring n...Personal Author:Courtney, Travis A. ;Andersson, Andreas J....2016 | Frontiers in Marine Science, 3(181).Description:Coral reef net ecosystem calcification (NEC) has decreased for many Caribbean reefs over recent decades primarily due to changes in benthic community ...Personal Author:Chung, Anne E. ;Wedding, Lisa M....2019 | Front. Mar. Sci., 19 March 2019Description:Coral reef managers currently face the challenge of mitigating global stressors by enhancing local ecological resilience in a changing climate. Effect...Personal Author:Goergen, Elizabeth A. ;Moulding, Alison L....2019 | Front. Mar. Sci., 12 February 2019Description:Corals, specifically the Atlantic staghorn coral, Acropora cervicornis, are under major threat as disturbance events such as storms and disease and pr...Personal Author:Lee, Zhongping ;Shang, Shaoling...2018 | Front. Mar. Sci., 30 January 2018Description:Commonly we see the diffuse attenuation coefficient of downwelling irradiance (Kd) expressed as a sum of the contributions of various constituents. We...Personal Author:Smith, Tyler B. ;Brandtneris, Viktor W....2016 | Front. Mar. Sci., 29 June 2016Description:Mesophotic coral ecosystems are extensive light-dependent habitats that typically form between 30 and 150 m depth in the tropical oceans. The forces t...Personal Author:Lin, Chih-Hsien ;Flynn, Kevin J....2018 | Front. Mar. Sci., 10 September 2018Description:Results from a dynamic mathematical model are presented simulating the growth of the harmful algal bloom (HAB) mixotrophic dinoflagellate Karlodinium ...Personal Author:Stauffer, Beth A. ;Bowers, Holly A....2019 | Front. Mar. Sci., 16 July 2019Description:Recurrent blooms of harmful algae and cyanobacteria (HABs) plague many coastal and inland waters throughout the United States and have significant soc...Personal Author:Benway, Heather M. ;Lorenzoni, Laura...2019 | Front. Mar. Sci., 12 July 2019Description:Sustained ocean time series are critical for characterizing marine ecosystem shifts in a time of accelerating, and at times unpredictable, changes. Th...Personal Author:Martin, Summer L. ;Ballance, Lisa T....2016 | Front. Mar. Sci., 27 April 2016Description:The ocean provides ecosystem services (ES) that support humanity. Traditional single-issue management largely failed to protect the full suite of ES. ...Personal Author:Goertz, Caroline E. C. ;Reichmuth, Colleen...2019 | Front. Vet. Sci., 06 February 2019Description:Bearded (Erignathus barbatus), ringed (Pusa hispida), spotted (Phoca largha), and ribbon (Histriophoca fasciata) seals rely on seasonal sea-ice in Arc...Personal Author:Cross, Jessica N. ;Turner, Jessie A....2019 | Front. Mar. Sci., 02 July 2019Description:Ocean acidification (OA) describes the progressive decrease in the pH of seawater and other cascading chemical changes resulting from oceanic uptake o...Personal Author:Terlouw, Gerianne J. ;Knor, Lucie A. C. M....2019 | Front. Mar. Sci., 07 May 2019Description:A statistical evaluation of nearly 10 years of high-resolution surface seawater carbon dioxide partial pressure (pCO2) time-series data collected from...Personal Author:Zellmer, Amanda J. ;Claisse, Jeremy T....2019 | Front. Mar. Sci., 12 February 2019Description:Habitat restoration is an important tool for managing degraded ecosystems, yet the success of restoration projects depends in part on adequately ident...Personal Author:Wildermann, Natalie E. ;Sasso, Christopher R....2019 | Front. Mar. Sci., 28 March 2019Description:Multi-species conservation strategies can be useful to maximize allocation of resources. To effectively plan for multi-species management practices, i...The Effects of Anthropogenic Stressors on Reproduction and Recruitment of Corals and Reef OrganismsCitePersonal Author:Richmond, Robert H. ;Tisthammer, Kaho H....2018 | Front. Mar. Sci., 02 July 2018Description:The persistence of populations of marine organisms depends on the success of the dual processes of reproduction and recruitment. The production of off...Personal Author:Roman, Michael R. ;Brandt, Stephen B....2019 | Front. Mar. Sci., 22 March 2019Description:Hypoxia, triggered in large part by eutrophication, exerts widespread and expanding stress on coastal ecosystems. Hypoxia is often specifically define...Personal Author:Moisan, Tiffany A. ;Rufty, Kay M....2017 | Front. Mar. Sci., 19 June 2017Description:Phytoplankton functional diversity plays a key role in structuring the ocean carbon cycle and can be estimated using measurements of phytoplankton fun...
More +
You May Also Like
Personal Author:
Bassett, R. ;
Harter, S.L.
...
2022 | DWH MDBC Summary Report ; SR-22-01
Description:
Two workshops with subject matter experts in the appropriate fields, were held in November and December 2021 to elicit guidance and feedback from the ...
Checkout today's featured content at repository.library.noaa.gov