Resilience of Pink Salmon and Chum Salmon to Simulated Fisheries Capture Stress Incurred upon Arrival at Spawning Grounds
نویسندگان
چکیده
منابع مشابه
Fitness and behavioral correlates of pre-stress and stress-induced plasma cortisol titers in pink salmon (Oncorhynchus gorbuscha) upon arrival at spawning grounds.
Semelparous Pacific salmon (Onchorynchus spp.) serve as an excellent model for examining the relationships between life history, behavior and individual variation in glucocorticoid (GC) stress hormone levels because reproductive behaviors are highly variable between individuals and failure to reproduce results in zero fitness. Pink salmon (O. gorbuscha) were intercepted upon arrival at the spaw...
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Cystatin, a cysteine proteinase inhibitor, was isolated from chum salmon (Oncorilynch"s keta) pituitary glands by ion-exchange chromatography on Mono-Q, gel filtration on Superdex 75, and reverse-phase HPLC on an ODS fo1]owing ethanol-ammonium acetate extraction. Salmon pituitary cystatin was equipotent te chicken egg-white cystatin in the papain inhibitory assay. The cystatin consists of 111 a...
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Sockeye salmon (Oncorhynchus nerka) stocks throughout the southern part of their North American range have experienced declines in productivity over the past two decades. In this study, we tested the hypothesis that pink (O. gorbuscha) and chum (O. keta) salmon stocks have also experienced recent declines in productivity by investigating temporal and spatial trends in productivity of 99 wild No...
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Over 300 coho salmon (Oncoryhynchus kisutch) were examined for their physical and metabolic condition following capture with three different commercial salmon fishing gear types (seine, troll and gillnet). Regardless of the gear type, all fish arrived on board in a severe state of metabolic exhaustion and physiological stress as based on the eleven physiological measurements we performed. In ou...
متن کاملDifferential use of salmon by vertebrate consumers: implications for conservation
Salmon and other anadromous fish are consumed by vertebrates with distinct life history strategies to capitalize on this ephemeral pulse of resource availability. Depending on the timing of salmon arrival, this resource may be in surplus to the needs of vertebrate consumers if, for instance, their populations are limited by food availability during other times of year. However, the life history...
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ژورنال
عنوان ژورنال: Transactions of the American Fisheries Society
سال: 2013
ISSN: 0002-8487,1548-8659
DOI: 10.1080/00028487.2012.746241