Results 21 to 30 of about 29,195 (221)

Endangered wild salmon infected by newly discovered viruses

open access: yeseLife, 2019
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]

open access: yes, 2020
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

Ancient DNA analysis of archaeological specimens extends Chinook salmon's known historic range to San Francisco Bay's tributaries and southernmost watershed.

open access: yesPLoS ONE, 2021
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.

open access: yesPLoS ONE, 2021
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]

open access: yesGenetica, 2014
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

open access: yesИзвестия ТИНРО, 2022
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]

open access: yesGeneral and Comparative Endocrinology, 1984
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]

open access: yesScientific Reports, 2016
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

Partitioning the influence of Chinook salmon productivity and stock-specific abundance on the southern resident killer whale population

open access: yesGlobal Ecology and Conservation
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 of persistent organic pollutants in the southern Hemisphere by invasive Chinook salmon (Oncorhynchus tshawytscha) in the rivers of northern Chilean Patagonia, a UNESCO biosphere reserve

open access: yesEnvironment International, 2020
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

Home - About - Disclaimer - Privacy