scholarly journals Effects of post-capture ventilation assistance and elevated water temperature on sockeye salmon in a simulated capture-and-release experiment

2013 ◽  
Vol 1 (1) ◽  
pp. cot015-cot015 ◽  
Author(s):  
K. A. Robinson ◽  
S. G. Hinch ◽  
M. K. Gale ◽  
T. D. Clark ◽  
S. M. Wilson ◽  
...  
Keyword(s):  
Water Temperature ◽  
Sockeye Salmon ◽  
Release Experiment ◽  
Capture And Release ◽  
Elevated Water

Physiological impairment of adult sockeye salmon in fresh water after simulated capture-and-release across a range of temperatures

2011 ◽  
Vol 112 (1-2) ◽  
pp. 85-95 ◽  
Author(s):  
Marika Kirstin Gale ◽  
Scott G. Hinch ◽  
Erika J. Eliason ◽  
Steven J. Cooke ◽  
David A. Patterson
Keyword(s):  
Fresh Water ◽  
Sockeye Salmon ◽  
Capture And Release

Inhibition of ovarian development and instances of sex reversal in genotypic female sablefish (Anoplopoma fimbria) exposed to elevated water temperature

2019 ◽  
Vol 279 ◽  
pp. 88-98
Author(s):  
Thao B. Huynh ◽  
William T. Fairgrieve ◽  
Edward S. Hayman ◽  
Jonathan S.F. Lee ◽  
J. Adam Luckenbach
Keyword(s):  
Water Temperature ◽  
Ovarian Development ◽  
Sex Reversal ◽  
Anoplopoma Fimbria ◽  
Elevated Water

High river temperature reduces survival of sockeye salmon (Oncorhynchus nerka) approaching spawning grounds and exacerbates female mortality

2012 ◽  
Vol 69 (2) ◽  
pp. 330-342 ◽  
Author(s):  
Eduardo G. Martins ◽  
Scott G. Hinch ◽  
David A. Patterson ◽  
Merran J. Hague ◽  
Steven J. Cooke ◽  
...  
Keyword(s):  
Water Temperature ◽  
Sockeye Salmon ◽  
Oncorhynchus Nerka ◽  
Thermal Conditions ◽  
Fraser River ◽  
Female Mortality ◽  
River Section ◽  
Spawning Grounds ◽  
River Temperature ◽  
Related Mortality

Recent studies have shown that warm temperatures reduce survival of adult migrating sockeye salmon ( Oncorhynchus nerka ), but knowledge gaps exist on where high-temperature-related mortality occurs along the migration and whether females and males are differentially impacted by river temperature. In this study, we monitored 437 radio-tagged Fraser River sockeye salmon and used capture–mark–recapture modelling approaches to investigate whether river thermal conditions differentially influence (i) spatial patterns of survival along a 413-km stretch of migration and (ii) survival of the sexes. Regardless of water temperature, survival decreased in the river section containing the most hydraulically difficult passages of the migration. However, when water temperature was warm (19 °C), survival decreased even further in the final 186 km of the migration prior to reaching the spawning grounds, particularly in females. Female and male survival differed but only when they experienced warm river temperatures. Under such conditions, the overall freshwater migration survival of males was 1.6 times higher (0.79 ± 0.09 standard error, SE) than that of females (0.50 ± 0.11 SE). As maturing female sockeye salmon maintain higher levels of plasma cortisol compared with males, we suspect that females could be immuno-compromised and thus less resistant to pathogens whose rates of development are accelerated by warm temperatures.

scholarly journals Conservation physiology in practice: how physiological knowledge has improved our ability to sustainably manage Pacific salmon during up-river migration

2012 ◽  
Vol 367 (1596) ◽  
pp. 1757-1769 ◽  
Author(s):  
Steven J. Cooke ◽  
Scott G. Hinch ◽  
Michael R. Donaldson ◽  
Timothy D. Clark ◽  
Erika J. Eliason ◽  
...  
Keyword(s):  
Functional Genomics ◽  
Sockeye Salmon ◽  
Pacific Salmon ◽  
Population Level ◽  
Mechanistic Explanation ◽  
Conservation Physiology ◽  
In The Wild ◽  
Capture And Release ◽  
Novel Applications ◽  
River Migration

Despite growing interest in conservation physiology, practical examples of how physiology has helped to understand or to solve conservation problems remain scarce. Over the past decade, an interdisciplinary research team has used a conservation physiology approach to address topical conservation concerns for Pacific salmon. Here, we review how novel applications of tools such as physiological telemetry, functional genomics and laboratory experiments on cardiorespiratory physiology have shed light on the effect of fisheries capture and release, disease and individual condition, and stock-specific consequences of warming river temperatures, respectively, and discuss how these findings have or have not benefited Pacific salmon management. Overall, physiological tools have provided remarkable insights into the effects of fisheries capture and have helped to enhance techniques for facilitating recovery from fisheries capture. Stock-specific cardiorespiratory thresholds for thermal tolerances have been identified for sockeye salmon and can be used by managers to better predict migration success, representing a rare example that links a physiological scope to fitness in the wild population. Functional genomics approaches have identified physiological signatures predictive of individual migration mortality. Although fisheries managers are primarily concerned with population-level processes, understanding the causes of en route mortality provides a mechanistic explanation and can be used to refine management models. We discuss the challenges that we have overcome, as well as those that we continue to face, in making conservation physiology relevant to managers of Pacific salmon.

Latitudinal change in the distribution of luderick Girella tricuspidata (Pisces: Girellidae) associated with increasing coastal water temperature in eastern Australia

2017 ◽  
Vol 68 (6) ◽  
pp. 1187 ◽  
Author(s):  
B. R. Pollock
Keyword(s):  
Water Temperature ◽  
Coastal Water ◽  
Population Decline ◽  
Significant Negative Correlation ◽  
Population Abundance ◽  
Northern Limit ◽  
Eastern Australia ◽  
Annual Time Series ◽  
Temperature Records ◽  
Elevated Water

During the past two decades there has been a major decline in the luderick (Girella tricuspidata) population and fishery in the coastal areas of southern Queensland, Australia. This region is the northern limit of the range of luderick. An analysis of annual time series information from the luderick fishery and from sea surface temperature records from 1976 to 2015 found a moderate and significant negative correlation (Pearson r=–0.39, P<0.05) between water temperature and population abundance in southern Queensland. Previous studies of juvenile and adult luderick indicate their sensitivity to elevated water temperature at the northern limit of their range, further supporting the hypothesis that declines in population abundance of luderick in southern Queensland are associated with increased water temperature. Other possible factors for the luderick population decline (overfishing and habitat loss) are discussed. Any future increases in coastal water temperatures in eastern Australia may result in further southward shifts of the luderick population, and may have similar effects on other fish species that have their northern range limits in southern Queensland.

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