Results 21 to 30 of about 8,700 (238)

Comparative Susceptibilities of Selected California Chinook Salmon and Steelhead Populations to Isolates of L Genogroup Infectious Hematopoietic Necrosis Virus (IHNV)

open access: yesAnimals, 2022
Salmonid species demonstrate varied susceptibility to the viral pathogen infectious hematopoietic necrosis virus (IHNV). In California conservation hatcheries, juvenile Chinook salmon (Oncorhynchus tshawytscha) have experienced disease outbreaks due to L
Christin M. Bendorf   +3 more
doaj   +1 more source

Parvicapsula pseudobranchicola in the northeast Pacific Ocean is rare in farmed Atlantic salmon Salmo salar despite widespread occurrence and pathology in wild Pacific salmon Oncorhynchus spp.

open access: yesParasites & Vectors, 2023
Background Infection with the myxozoan parasite Parvicapsula pseudobranchicola causes disease in wild and farmed salmonids in Norway. In the northeast Pacific Ocean, the parasite has been reported in Pacific salmon Oncorhynchus spp.
Simon R. M. Jones   +2 more
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

Virulence and Infectivity of UC, MD, and L Strains of Infectious Hematopoietic Necrosis Virus (IHNV) in Four Populations of Columbia River Basin Chinook Salmon

open access: yesViruses, 2021
Infectious Hematopoietic Necrosis Virus (IHNV) infects juvenile salmonid fish in conservation hatcheries and aquaculture facilities, and in some cases, causes lethal disease.
Daniel G. Hernandez   +3 more
doaj   +1 more source

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

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

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

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

Competing conservation objectives for predators and prey : estimating killer whale prey requirements for Chinook salmon

open access: yes, 2011
Ecosystem-based management (EBM) of marine resources attempts to conserve interacting species. In contrast to single-species fisheries management, EBM aims to identify and resolve conflicting objectives for different species.
Erin Ashe   +32 more
core   +1 more source

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