Mortality of Atlantic salmon after catch and release angling: assessment of a recreational Atlantic salmon fishery in a changing climate

@article{Leeuwen2020MortalityOA,
  title={Mortality of Atlantic salmon after catch and release angling: assessment of a recreational Atlantic salmon fishery in a changing climate},
  author={Travis E. Van Leeuwen and J. Brian Dempson and Chantelle M. Burke and Nicholas I. Kelly and Martha J. Robertson and Robert J. Lennox and Torgeir B{\o}rresen Havn and Martin‐A. Svenning and Ross Hinks and Matthew M. Guzzo and Eva Bonsak Thorstad and Craig F. Purchase and Amanda E. Bates},
  journal={Canadian Journal of Fisheries and Aquatic Sciences},
  year={2020}
}
Human activities have the potential to accelerate population-level decline by contributing to climate warming and decreasing the capacity of species to survive warming temperatures. Here we build a predictive model to test interactions between river warming and catch and release mortality in recreational fisheries for Atlantic salmon (Salmo salar) by compiling and analyzing published data. We then test whether warming has occurred in rivers where angling occurs and whether angling opportunities… 

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References

SHOWING 1-10 OF 44 REFERENCES
Overview of the status of Atlantic salmon (Salmo salar) in the North Atlantic and trends in marine mortality
Since the early 1980s, the ICES Working Group on North Atlantic Salmon has collated and interpreted catch data, exchanged information on research initiatives, and provided advice to managers in
Does Catch-and-Release Angling Alter the Behavior and Fate of Adult Atlantic Salmon During Upriver Migration?
AbstractTo reproduce, Atlantic Salmon Salmo salar return to freshwater rivers and migrate upriver to spawning areas. This migration is the basis for recreational fisheries, which for conservation
Physiology and Survival of Wild Atlantic Salmon following Angling in Warm Summer Waters
TLDR
Test the hypothesis that angling during warmer summer months (water temperatures of 20 ± 2°C) increases the magnitude of physiological disturbances in the white muscle by observing marked increases in white muscle lactate and the postexercise metabolic proton load, which accompanied glycogen depletion.
Why aren't there more Atlantic salmon (Salmo salar)?
TLDR
Salmon researchers and managers should not look for a single culprit in declining numbers of salmon, but rather, seek solutions through rigorous data gathering and testing of multiple effects integrated across space and time.
Potential impact of climate warming on recreational fishing opportunities for Atlantic salmon, Salmo salar L., in Newfoundland, Canada
Potential impacts of climate warming on recreational fishing opportunities were addressed by assessing the frequency and extent that Atlantic salmon, Salmo salar L., rivers in Newfoundland have been
The effect of catch-and-release angling at high water temperatures on behaviour and survival of Atlantic salmon Salmo salar during spawning migration.
TLDR
C&R at water temperatures up to 18 °C had small behavioural consequences and was associated with low mortality, Nevertheless, low levels of mortality occur due to C &R angling and these losses should be accounted for by management authorities in rivers where C&R is practised.
Behaviour and survival of wild Atlantic salmon Salmo salar captured and released while surveillance angling for escaped farmed salmon
In many Norwegian rivers, spawning stocks are surveyed for escaped farmed salmon with surveillance fishing by rod and reel after the recreational angling season. However, the benefits of surveillance
...
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