Accès ouvert
2026
article
OpenAlex
Leigh Gaffney, Emma B. Polard, Chloe N. Kraemer, Lydia N. Walton et autres
Vateritic otoliths, abnormal calcium carbonate crystals that can replace aragonite in the inner ears of fish, occur far more frequently in hatchery-reared than wild salmonids and are associated with impaired hearing, reduced predator evasion, and potentially lower post-release survival. Because hatchery and …
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Accès ouvert
2025
article
OpenAlex
Leigh Gaffney, Emma B. Polard, Lydia N. Walton, Chloe N. Kraemer et autres
Hatchery-reared salmonids frequently develop vateritic otoliths—abnormal calcium carbonate structures that impair hearing, balance, and survival. Although vaterite formation has been linked to artificial rearing conditions, the influence of water flow direction has been largely overlooked. This study investigated how tank water flow …
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Accès ouvert
2025
article
OpenAlex
Leigh Gaffney, Micah J. Quindazzi, Emma B. Polard, Chloe N. Kraemer et autres
Coho salmon ( Oncorhynchus kisutch ) populations have been declining, prompting large-scale hatchery-rearing programs to mitigate these losses. Despite these efforts, hatchery-reared coho salmon exhibit lower marine survival rates compared to their wild counterparts, potentially due to differences in rearing environments. One …
ca
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2024
article
OpenAlex
Emma B. Polard, Chloe N. Kraemer, Leigh Gaffney, Francis Juanes
... Pacific salmon Oncorhynchus spp. are keystone species essential to the health of ecosystems and serve as a vital link between the marine and freshwater environments of the northeastern Pacific. From the rivers where they spawn to the vast Pacific Ocean where …
ca
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Accès ouvert
2023
article
OpenAlex
Micah J. Quindazzi, Leigh Gaffney, Emma B. Polard, Nick Bohlender et autres
Many aspects of natural and hatchery origin salmonid genetics, physiology, behaviour, anatomy and life histories have been compared due to the concerns about what effects domestication and hatchery rearing conditions have on fitness. Genetic and environmental stressors associated with hatchery rearing could …
ca
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