i
Adaptive capacity at the northern front: sockeye salmon behaviourally thermoregulate during novel exposure to warm temperatures
-
2016
Source: Conserv Physiol
[PDF-722.69 KB]
Details:
-
Journal Title:Conservation Physiology
-
Personal Author:
-
NOAA Program & Office:
-
Description:As climate change increases maximal water temperatures, behavioural thermoregulation may be crucial for the persistence of coldwater fishes, such as salmonids. Although myriad studies have documented behavioural thermoregulation in southern populations of salmonids, few if any have explored this phenomenon in northern populations, which are less likely to have an evolutionary history of heat stress, yet are predicted to experience substantial warming. Here, we treated a rare heat wave as a natural experiment to test whether wild sockeye salmon (Oncorhynchus nerka) at the northern extent of their primary range (60° latitude) can thermoregulate in response to abnormally high thermal conditions. We tagged adult sockeye salmon with temperature loggers as they staged in a lake epilimnion prior to spawning in small cold streams (n = 40 recovered loggers). As lake surface temperatures warmed to physiologically suboptimal levels (15-20°C), sockeye salmon thermoregulated by moving to tributary plumes or the lake metalimnion. A regression of fish body temperature against lake surface temperature indicated that fish moved to cooler waters when the epilimnion temperature exceeded ~12°C. A bioenergetics model suggested that the observed behaviour reduced daily metabolic costs by as much as ~50% during the warmest conditions (18-20°C). These results provide rare evidence of cool-seeking thermoregulation at the poleward extent of a species range, emphasizing the potential ubiquity of maximal temperature constraints and the functional significance of thermal heterogeneity for buffering poikilotherms from climate change.
-
Keywords:
-
Source:Conserv Physiol;. 2016 Oct 4;4(1):cow039;
-
Pubmed Central ID:PMC5055284
-
Document Type:
-
Rights Information:CC BY
-
Compliance:PMC
-
Main Document Checksum:urn:sha256:4d3e1e4e9c7d95a4269ae6e18602ace9660ba7e2adde77276466944ee115084a
-
File Type:
Supporting Files
-
No Additional Files
More +
Related Documents
-
2018 | Annals of Glaciology, 59(76pt2), 137-147.Description:Pressure ridges impact the mass, energy and momentum budgets of the sea-ice cover and present an obstacle to transportation through ice-infested water...Personal Author:Drake, John M. ;Richards, Robert L.2018 | Ecosphere 9(9): e02373Description:Methods for modeling species’ distributions in nature are typically evaluated empirically with respect to data from observations of species occurren...2019 | Proc Natl Acad Sci U S A. 2019 Mar 19; 116(12): 5582–5587Description:In terrestrial systems, the green wave hypothesis posits that migrating animals can enhance foraging opportunities by tracking phenological variation ...Personal Author:Lefohn, Allen S. ;Malley, Christopher S....2018 | Elem Sci Anth, 6(1), p.28.Description:Assessment of spatial and temporal variation in the impacts of ozone on human health, vegetation, and climate requires appropriate metrics. A key comp...2019 | Conserv Physiol. 2019; 7(1): coz035.Description:Reversing global declines in the abundance and diversity of fishes is dependent on science-based conservation solutions. A wealth of data exist on the...Using Linkage Maps as a Tool To Determine Patterns of Chromosome Synteny in the Genus SalvelinusCitePersonal Author:Hale, Matthew C ;McKinney, Garrett J...2017 | G3 (Bethesda) 2017 Nov; 7(11): 3821-3830.Description:Next generation sequencing techniques have revolutionized the collection of genome and transcriptome data from nonmodel organisms. This manuscript det...Personal Author:Yang, Tiffany ;Haas, Heather L...2019 | Conserv Physiol;Description:We documented blood biochemistry and haematology of healthy loggerhead turtles (Caretta caretta) in the Northwest (NW) Atlantic in order to establish ...Personal Author:Trego, Marisa L ;Whitehead, Andrew...2019 | Conserv Physiol;Description:Marine wildlife populations are adapted to survive in highly dynamic environments. However, identifying the effects of endogenous versus exogenous var...Personal Author:Rojas-Bracho, Lorenzo ;Brusca, Richard C...2019 | Bioscience;Description:The vaquita porpoise (Phocoena sinus) is Mexico's only endemic—and the world's most endangered—marine mammal. With a population of fewer than 30 i...Personal Author:Friedman, Whitney R. ;Martin, Benjamin T....2019 | Ecosphere 10(7): e02743Description:Life histories of migratory species such as anadromous fishes make them particularly susceptible to composite effects of processes experienced across ...2017 | Ecosphere 8(3): e01728Description:River‐floodplains are hotspots for many ecosystem services (ES ), and thus, understanding how these services are spatially organized along river sys...Seasonal physiological dynamics of maturing female southern flounder (Paralichthys lethostigma)CitePersonal Author:Grieshaber, Casey A. ;Midway, Stephen R....2016 | Conserv Physiol. 2016; 4(1): cow043.Description:Physiological information is rarely used in descriptions of maturity for managed, wild fish species; however, the use of physiological data holds grea...Personal Author:Richardson, David E. ;Marancik, Katrin E....2016 | Proc Natl Acad Sci U S A. 2016 Mar 22; 113(12): 3299-3304.Description:Atlantic bluefin tuna are a symbol of both the conflict between preservationist and utilitarian views of top ocean predators, and the struggle to reac...Personal Author:Brown, Stuart M. ;Heguy, Adriana...2017 | Genome Biol Evol;Description:Atlantic tomcod in the Hudson River Estuary bioaccumulate high hepatic burdens of environmental toxicants. Previously, we demonstrated that Hudson Riv...2018 | Conserv Physiol. 2018; 6(1): coy031.Description:Baleen whales have few identifiable external indicators of pregnancy state, making it challenging to study essential aspects of their biology and popu...Personal Author:Bellmore, J Ryan ;Pess, George R...2019 | Bioscience. 2019 Jan 1; 69(1): 26–39Description:One of the desired outcomes of dam decommissioning and removal is the recovery of aquatic and riparian ecosystems. To investigate this common objectiv...Personal Author:Goertz, Caroline E C ;Burek-Huntington, Kathy...2019 | Conserv Physiol. 2019; 7(1): coz071.Description:The Cook Inlet population of beluga whales (Delphinapterus leucas) is listed as endangered and continues to decline for largely unknown reasons; howev...Personal Author:Wahl, Eugene R. ;Zorita, Eduardo...2019 | Proc Natl Acad Sci U S A. 2019 Mar 19; 116(12): 5393–5398Description:Moisture delivery in California is largely regulated by the strength and position of the North Pacific jet stream (NPJ), winter high-altitude winds th...Personal Author:Peng, Ge ;Meier, Walter N.2017 | Annals of Glaciology, 59(76pt2), 191-200.Description:With rapid and accelerated Arctic sea-ice loss, it is beneficial to update and baseline historical change on the regional scales from a consistent, in...Personal Author:Muñoz, Ángel G. ;Thomson, Madeleine C....2016 | Gigascience;Description:The emergence of Zika virus (ZIKV) in Latin America and the Caribbean in 2014-2016 occurred during a period of severe drought and unusually high tempe...
More +
You May Also Like
Personal Author:
Komoroske, Lisa M.
2017 | Conserv Physiol. 2017; 5(1): cox022.
Description:
It takes more energy for fish to survive in warm waters. But, it turns out that the costs may be even higher for larger individuals compared to smalle...
2017 | Scientific Data, 4 (170053)
Description:
Climate change has already influenced lake temperatures globally, but understanding future change is challenging. The response of lakes to changing cl...
Checkout today's featured content at repository.library.noaa.gov