Evaluating Artificial Propagation Release Strategies for Recovering Endangered Snake River Sockeye Salmon
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چکیده
منابع مشابه
Evaluating Relationships between Wild Skeena River Sockeye Salmon Productivity and the Abundance of Spawning Channel Enhanced Sockeye Smolts
The enhancement of salmon populations has long been used to increase the abundance of salmon returning to spawn and/or to be captured in fisheries. However, in some instances enhancement can have adverse impacts on adjacent non-enhanced populations. In Canada's Skeena watershed, smolt-to-adult survival of Babine Lake sockeye from 1962-2002 was inversely related to the abundance of sockeye smolt...
متن کاملLong-Term Population Dynamics of the Endangered Snake River Sockeye Salmon: Evidence of Past Influences on Stock Decline and Impediments to Recovery
—Declines in populations of Pacific salmon Oncorhynchus spp. have been most pronounced in the southern extent of their range, and numerous anthropogenic stressors and natural drivers have been identified as potential causes. Using a paleolimnological approach, we have reconstructed the natural variability in the population dynamics of endangered Snake River sockeye salmon O. nerka over approxim...
متن کاملMaintenance of Genetic Diversity in Natural Spawning of Captively-Reared Endangered Sockeye Salmon, Oncorhynchus nerka
Captive propagation of Pacific salmon is routine, but few captive breeding programs have been conducted to successfully re-establish extirpated wild populations. A captive breeding program for endangered Sakinaw Lake sockeye salmon was established from 84 adults between 2002 and 2005, just prior to extirpation of the wild population. After several years of absence, sockeye salmon released from ...
متن کاملAdding Nutrients to Enhance the Growth of Endangered Sockeye Salmon: Trophic Transfer in an Oligotrophic Lake
-Snake River sockeye salmon Oncorhynchlls nerka. li sted under U.S. law as endangered in 1991 in response to a decline in anadromous adult numbers, spend their first 12 years in Redfi sh Lake, Idaho, before migrating to the sea. To determine how nutrient enhancement might influence phytoplankton , zooplankton, and fi sh production, we performed fertilization experiments in large enclosures in t...
متن کاملBehaviour and physiology of sockeye salmon homing through coastal waters to a natal river
Adult sockeye salmon (Oncorhynchus nerka, N = 179) from six Fraser River populations (British Columbia) were intercepted in continental shelf waters »215 km from the Fraser River mouth, gastrically implanted with acoustic transmitters, non-lethally biopsied for blood biochemistry, gill Na,K-ATPase activity and somatic energy density and then released. Migration behaviour and travel times to the...
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ژورنال
عنوان ژورنال: North American Journal of Aquaculture
سال: 2020
ISSN: 1522-2055,1548-8454
DOI: 10.1002/naaq.10148