1. Mortality of Atlantic salmon after catch and release angling: assessment of a recreational Atlantic salmon fishery in a changing climate
- Author
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Van Leeuwen, Travis E., Dempson, J. Brian, Burke, Chantelle M., Kelly, Nicholas I., Robertson, Martha J., Lennox, Robert J., Havn, Torgeir B., Svenning, Martin, Hinks, Ross, Guzzo, Matthew M., Thorstad, Eva B., Purchase, Craig F., and Bates, Amanda E.
- Subjects
Salmon fisheries -- Analysis -- Health aspects ,Salmon -- Product introduction ,Fishing -- Analysis -- Health aspects ,Earth sciences - Abstract
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 have been restricted through increased river closures due to high water temperatures. We find that catch and release mortalities are low ( Les activites humaines ont le potentiel d'accelerer les declins de populations en participant au rechauffement climatique et en reduisant la capacite des especes de survivre a des temperatures en hausse. Nous elaborons un modele predictif pour examiner les interactions entre le rechauffement des rivieres et la mortalite associee a la peche avec remise a l'eau dans la peche sportive au saumon atlantique (Salmo salar), en compilant et en analysant des donnees publiees. Nous verifions ensuite si un rechauffement s'est produit dans les rivieres ou une peche a lieu et si les occasions de peche ont ete restreintes par l'augmentation du nombre de fermetures de riviere en raison de temperatures de l'eau elevees. Nous constatons que les taux de mortalite associes a la peche avec remise a l'eau sont faibles (, Introduction Average global air temperature has increased 0.74 [degrees]C since 1906, with 17 of the 18 warmest years on record occurring since 2001 (IPCC 2018) and with projections of further [...]
- Published
- 2020
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