Results 31 to 40 of about 1,289 (172)

Characteristics of roe of autumn chum salmon Oncorhynchus keta from the Amur River

Известия ТИНРО, 2021
Chemical composition and nutritional and biological value of roe are investigated for autumn chum salmon from the Amur River sampled during their run for spawning from the estuary to the area of Khabarovsk city.
A. I. Chepkasova, T. N. Slutskaya, E. I. Barabanshchikov   +2 more
doaj   +1 more source

Evidence for adaptive explanations of semelparity in animals

Biological Reviews, EarlyView.
ABSTRACT Semelparity, the reproductive strategy of reproducing once, is widespread but uncommon in animals. Classes of models to explain the evolution of semelparity are based either on age structure and mortality schedules – demographic models in which high post‐reproductive mortality risk favours high reproductive effort and semelparity results from ...
Diana O. Fisher, Roberto Salguero‐Gómez   +1 more
wiley   +1 more source

Biological characteristics for the spawners of chum salmon Oncorhynchus keta caught in the Indigirka River in 2023

Известия ТИНРО
The main biological parameters of chum salmon Oncorhynchus keta are presented for the spawners caught during the research expedition conducted to the lower reaches of Indigirka in August-September 2023.
A. I. Nikiforov, L. N. Karpova
doaj   +1 more source

Indigenous sex-selective salmon harvesting demonstrates pre-contact marine resource management in Burrard Inlet, British Columbia, Canada

Scientific Reports, 2021
To gain insight into pre-contact Coast Salish fishing practices, we used new palaeogenetic analytical techniques to assign sex identifications to salmonid bones from four archaeological sites in Burrard Inlet (Tsleil-Waut), British Columbia, Canada ...
Jesse Morin, Thomas C. A. Royle, Hua Zhang, Camilla Speller, Miguel Alcaide, Ryan Morin, Morgan Ritchie, Aubrey Cannon, Michael George, Michelle George, Dongya Yang   +10 more
doaj   +1 more source

Contrasting Food Web Dynamics Across Oceanographic Boundaries in Subarctic Pelagic Ecosystems

Fisheries Oceanography, EarlyView.
ABSTRACT Understanding the structure of pelagic food webs across multiple trophic levels is critical for elucidating species interactions, energy flow, and anthropogenic impacts on production. This study presents a comprehensive analysis of the eastern North Pacific pelagic food webs, focusing on the Gulf of Alaska (GoA) during late winter of 2019.
Genyffer C. Troina, Evgeny A. Pakhomov, Laurie Weitkamp, Brian P. V. Hunt   +3 more
wiley   +1 more source

Characteristics of adult chum salmon Oncorhynchus keta from the commercial stock at Iturup Island in 2024

Известия ТИНРО
Spawners of chum salmon Oncorhynchus keta were examined in the basins of Prostor and Kurilsky Bays (Iturup Island, Kuril Islands) from September 23 to November 2, 2024. The portion of females naturally increased during the spawning run and was 43.3 %, on
A. N. Elnikov, O. V. Zelennikov
doaj   +1 more source

Heat exchange rates between adult sockeye salmon (Oncorhynchus nerka) and the environment

Journal of Fish Biology, EarlyView.
Abstract Body temperatures of salmon do not always match the temperatures of their immediate environment. We investigated the relationship between varying ambient water temperatures and body temperatures of adult sockeye salmon Oncorhynchus nerka using Newton's law of cooling and non‐linear mixed models.
Avery Dextrase, David A. Patterson, Eduardo G. Martins   +2 more
wiley   +1 more source

The Staircase Chart: Visualising Vertical and Cross‐Shelf Movements and Dispersal of Early‐Life Fish, Applied to Japanese Jack Mackerel

Fisheries Oceanography, Volume 35, Issue 5, Page 689-703, September 2026.
ABSTRACT Dispersal during early life stages is a critical process shaping marine fish connectivity and population dynamics, yet direct field observations at the individual level remain elusive. This has limited our understanding of the factors controlling dispersal, including the impact of active swimming by larvae and juveniles. Here, we present a new
Tatsuya Sakamoto, Daichi Muto, Motomitsu Takahashi, Chiyuki Sassa, Toyoho Ishimura   +4 more
wiley   +1 more source

UDN-like lesions of pacific salmon in Kamchatka

Известия ТИНРО
The first documented cases of the ulcerative dermal necrosis (UDN) lesions are described for pacific salmon (pink salmon Oncorhynchus gorbuscha and chum salmon O. keta) in the waters of Kamchatka.
N. V. Sergeenko, T. V. Ryazanova, E. A. Ustimenko, E. V. Bochkova, A. I. Gerlits, E. A. Kirilova   +5 more
doaj   +1 more source

Dependence of progeny abundance for fall chum salmon ( Oncorhynchys keta) in the Amur River on the parents abundance

Известия ТИНРО, 2015
The stock of the Amur fall chum salmon ( Oncorhynchys keta ) was low in 2000-2005 (annual catches varied in the range of 500-1300 t) but began to increase since 2006 and the catch exceeded 22000 t in 2014.
Vladimir I. Ostrovsky, Elena V. Podorozhnyuk, Andrey P. Shmigirilov   +2 more
doaj   +1 more source