
Contents
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3.1 Defining the conservation challenge—Pacific salmon in the Anthropocene 3.1 Defining the conservation challenge—Pacific salmon in the Anthropocene
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3.2 Elevated temperatures can kill salmon 3.2 Elevated temperatures can kill salmon
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3.2.1 The science 3.2.1 The science
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3.2.2 The conservation implications 3.2.2 The conservation implications
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3.3 Intraspecific variation is the norm 3.3 Intraspecific variation is the norm
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3.3.1 The science 3.3.1 The science
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3.3.2 The conservation implications 3.3.2 The conservation implications
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3.4 Stressors rarely act alone 3.4 Stressors rarely act alone
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3.4.1 The science 3.4.1 The science
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3.4.2 The conservation implications 3.4.2 The conservation implications
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3.5 A range of indices associated with compromised health can predict migration fate 3.5 A range of indices associated with compromised health can predict migration fate
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3.5.1 The science 3.5.1 The science
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3.5.2 The conservation implications 3.5.2 The conservation implications
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3.6 Simple reflex indicators can be used to refine fishing practices 3.6 Simple reflex indicators can be used to refine fishing practices
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3.6.1 The science 3.6.1 The science
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3.6.2 The conservation implications 3.6.2 The conservation implications
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3.7 Facilitated recovery of exhausted salmon is context-dependent 3.7 Facilitated recovery of exhausted salmon is context-dependent
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3.7.1 The science 3.7.1 The science
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3.7.2 The conservation implications 3.7.2 The conservation implications
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3.8 The smell has to be the right one to get home 3.8 The smell has to be the right one to get home
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3.8.1 The science 3.8.1 The science
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3.8.2 The conservation implications 3.8.2 The conservation implications
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3.9 Not too much, not too little 3.9 Not too much, not too little
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3.9.1 The science 3.9.1 The science
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3.9.2 The conservation implications 3.9.2 The conservation implications
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3.10 Reflections on physiology in practice 3.10 Reflections on physiology in practice
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3.11 Insights from social science 3.11 Insights from social science
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3.12 Conclusions and future directions 3.12 Conclusions and future directions
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References References
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17 Using applied physiology to better manage and conserve the white rhinoceros (Ceratotherium simum)
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3 On conducting management-relevant mechanistic science for upriver migrating adult Pacific salmon
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Published:November 2020
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Abstract
Pacific salmon undertake iconic homeward migrations where they move from ocean feeding grounds to coastal rivers where they return to natal spawning sites. However, this migration is physiologically challenging as fish have to navigate past predators, nets, hooks, and dams while dealing with variable flows, warm water temperatures, and pathogens. These challenges often interact in synergistic ways that can sometimes lead to migration failure. The conservation physiology toolbox has led to new understanding of how salmon deal with different challenges with a goal of generating management-relevant science. Given the sensitivity of Pacific salmon to warm temperatures, much research has focused on identifying thermal thresholds. In addition, physiology has informed the development of methods for recovering fish that are exhausted from fisheries interactions and for enhancing passage success at fishways. These successes have arisen in part due to the extent to which we partnered with fisheries managers and other stakeholders to ensure that we were conducting relevant research.
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