Results 21 to 30 of about 29,195 (221)
Endangered wild salmon infected by newly discovered viruses
The collapse of iconic, keystone populations of sockeye (Oncorhynchus nerka) and Chinook (Oncorhynchus tshawytscha) salmon in the Northeast Pacific is of great concern. It is thought that infectious disease may contribute to declines, but little is known
Gideon J Mordecai +11 more
doaj +1 more source
The geometry of reaction norms yields insights on classical fitness functions for Great Lakes salmon. [PDF]
Life history theory examines how characteristics of organisms, such as age and size at maturity, may vary through natural selection as evolutionary responses that optimize fitness.
Breck, James E +5 more
core +2 more sources
Understanding a species' historic range guides contemporary management and habitat restoration. Chinook salmon (Oncorhynchus tshawytscha) are an important commercial and recreational gamefish, but nine Chinook subspecies are federally threatened or ...
Richard B Lanman +9 more
doaj +1 more source
Endangered predators and endangered prey: Seasonal diet of Southern Resident killer whales.
Understanding diet is critical for conservation of endangered predators. Southern Resident killer whales (SRKW) (Orcinus orca) are an endangered population occurring primarily along the outer coast and inland waters of Washington and British Columbia ...
M Bradley Hanson +14 more
doaj +1 more source
Multigenerational outbreeding effects in Chinook salmon (Oncorhynchus tshawytscha) [PDF]
Outbreeding, mating between genetically divergent individuals, may result in negative fitness consequences for offspring via outbreeding depression. Outbreeding effects are of notable concern in salmonid research as outbreeding can have major implications for salmon aquaculture and conservation management. We therefore quantified outbreeding effects in
Sarah J, Lehnert +4 more
openaire +2 more sources
Jellyfish in Pacific salmon food
Ctenophores, hydroid jellyfish, appendicularians, salpas, and the pteropoda mollusk Clione limacina, conditionally combined into the group of “jellyfish”, are found in the food of all Pacific salmon — chum salmon, pink salmon, sockeye salmon, coho salmon
A. F. Volkov
doaj +1 more source
Purification and biological characterization of chinook salmon prolactin [PDF]
Prolactin from chinook salmon pituitaries was purified by acid acetone extraction, saline precipitation, chromatofocusing, and gel filtration. This procedure allowed us to recover highly purified prolactin as demonstrated by the presence of a single NH2-terminal amino acid and a single band in sodium dodecyl sulfate gel electrophoresis.
Prunet, Patrick, Houdebine, Louis, L.
openaire +5 more sources
Polyphyletic ancestry of expanding Patagonian Chinook salmon populations [PDF]
AbstractChinook salmon native to North America are spreading through South America’s Patagonia and have become the most widespread anadromous salmon invasion ever documented. To better understand the colonization history and role that genetic diversity might have played in the founding and radiation of these new populations, we characterized ancestry ...
Cristian Correa, Paul Moran
openaire +2 more sources
The southern resident killer whale (Orcinus orca, SRKW) population is listed as endangered in both the U.S. and Canada. Reduced prey availability, especially of Chinook salmon, is recognized as an important limiting factor for this population.
Fanny Couture +2 more
doaj +1 more source
Biotransport is often associated with migration patterns of species, including large, anadromous salmonids. Several studies have reported biotransport of persistent organic pollutants in the Northern Hemisphere, but there is no published information on ...
Mónica Montory +6 more
doaj +1 more source

