Results 1 to 10 of about 1,622 (177)

Spatiotemporal distribution of Ceratonova shasta in the lower Columbia River Basin and effects of exposure on survival of juvenile chum salmon Oncorhynchus keta. [PDF]

PLoS ONE, 2022
In the Columbia River Basin (CRB), USA, anthropogenic factors ranging from dam construction to land use changes have modified riverine flow and temperature regimes and degraded salmon habitat.
Kristen Homel, Julie D Alexander
doaj   +2 more sources

Beyond lethal temperatures: Factors behind the disappearance of chum salmon from their southern margins under climate change. [PDF]

PLoS ONE
The Tone River in Japan represents one of the southern limit distributions of chum salmon (Oncorhynchus keta) on the western side of the North Pacific, but the number of adult chum salmon observed here has declined dramatically since 2013 and reached ...
Yu-Lin K Chang, Kentaro Honda, Kentaro Morita   +2 more
doaj   +2 more sources

Age and growth of chum salmon from the Tumen River. [PDF]

PeerJ
To investigate the age structure and growth characteristics of the chum salmon (Oncorhynchus keta) population in the Tumen River, this study conducted age determination and measured basic biological indicators including fork length (FL) and body weight (BW) for 331 specimens collected between 2020 and 2023. Results revealed that the spawning population
Wang A, Li P, Tang F, Xiong S, Yu J, Wang J.   +5 more
europepmc   +4 more sources

Climate-driven shifts in marine habitat explain recent declines of Japanese Chum salmon [PDF]

Scientific Reports
Climate change is accelerating at unprecedented rates, with disproportionate impacts on marine ecosystems. We examined the distributional responses of chum salmon (Oncorhynchus keta), a keystone species, to the recent climatic changes in the North ...
Irene D. Alabia, Sei-Ichi Saitoh, Jorge García Molinos, Takafumi Hirata, Yasuyuki Miyakoshi, Fumihiro Takahashi, Hiromichi Ueno, Masahide Kaeriyama   +7 more
doaj   +2 more sources

Regional-Scale Declines in Productivity of Pink and Chum Salmon Stocks in Western North America. [PDF]

PLoS ONE, 2016
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)
Michael J Malick, Sean P Cox
doaj   +2 more sources

Spatiotemporal distribution of juvenile chum salmon in Otsuchi Bay, Iwate, Japan, inferred from environmental DNA. [PDF]

PLoS ONE, 2019
To understand the ecology of juvenile chum salmon during early marine life after their downstream migration, we developed a quantitative PCR-based environmental DNA (eDNA) method specific for chum salmon and investigated the spatiotemporal distribution ...
Yuki Minegishi, Marty Kwok-Shing Wong, Takashi Kanbe, Hitoshi Araki, Tomomi Kashiwabara, Minoru Ijichi, Kazuhiro Kogure, Susumu Hyodo   +7 more
doaj   +2 more sources

Involvement of hormones in olfactory imprinting and homing in chum salmon. [PDF]

Sci Rep, 2016
AbstractThe olfactory hypothesis for salmon imprinting and homing to their natal stream is well known, but the endocrine hormonal control mechanisms of olfactory memory formation in juveniles and retrieval in adults remain unclear. In brains of hatchery-reared underyearling juvenile chum salmon (Oncorhynchus keta), thyrotropin-releasing hormone gene ...
Ueda H, Nakamura S, Nakamura T, Inada K, Okubo T, Furukawa N, Murakami R, Tsuchida S, Zohar Y, Konno K, Watanabe M.   +10 more
europepmc   +5 more sources

Genetic assessment of a summer chum salmon metapopulation in recovery. [PDF]

Evol Appl, 2014
AbstractPrograms to rebuild imperiled wild fish populations often include hatchery‐born fish derived from wild populations to supplement natural spawner abundance. These programs require monitoring to determine their demographic, biological, and genetic effects.
Small MP, Johnson TH, Bowman C, Martinez E.   +3 more
europepmc   +4 more sources

Jellyfish in Pacific salmon food

Известия 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

Features of exploitation of high-number industrial chum salmon Oncorhynchus keta on the example of Lake Tunaicha (south-eastern Sakhalin): problems and proposed solutions

Известия ТИНРО, 2022
In Lake Tunaicha mainly artificial reproduction of chum salmon is carried out. The escapement is at a high level — more than 1 million fish. Significant pre-settlement mortality of chum salmon has been regularly observed in the lake basin over the last ...
Y. I. Ignatyev, N. V. Kolpakov, V. D. Nikitin, T. G. Koreneva   +3 more
doaj   +1 more source