Results 31 to 40 of about 2,740 (167)

FORMATION OF «FALSE ANNUAL RINGS» ON SCALES OF JUVENILE COHO SALMON ONCORHYNCHUS KISUTCH IN LAKE KURAZHECHNOYE (KAMAKOVSKAYA LOWLAND — KAMCHATKA RIVER BASIN)

Известия ТИНРО, 2019
During spring-summer flood (in mid May — July), transit underyearlings of coho salmon, having or having no scales, migrate to Lake Kurazhechnoye at the lower Kamchatka River, where resident coho salmon never spawn.
V. F. Bugaev, G. V. Bazarkin, D. P. Pogorelova   +2 more
doaj   +1 more source

Species identification and mitochondrial genomes of ancient fish bones from the Riverine Kachemak tradition of the Kenai Peninsula, Alaska

Mitochondrial DNA. Part B. Resources, 2018
Seven fish vertebrae were chosen for analysis from the 49-KEN-147 archaeological site in the Kenai Peninsula, Alaska. Mitochondrial DNA analysis of the ancient fish bones revealed that they were from sockeye and coho salmon.
Alida de Flamingh, Elizabeth K. Mallott, Alfred L. Roca, Alan S. Boraas, Ripan S. Malhi   +4 more
doaj   +1 more source

Establishing the Signal above the Noise: Accounting for an Environmental Background in the Detection and Quantification of Salmonid Environmental DNA

Fishes, 2022
A current challenge for environmental DNA (eDNA) applications is how to account for an environmental (or false-positive) background in surveys. We performed two controlled experiments in the Goldstream Hatchery in British Columbia using a validated coho ...
Morgan D. Hocking, Jeffrey C. MacAdams, Michael J. Allison, Lauren C. Bergman, Robert Sneiderman, Ben F. Koop, Brian M. Starzomski, Mary L. Lesperance, Caren C. Helbing   +8 more
doaj   +1 more source

Prey group cohesion mediates the outcome of predator–prey interactions under artificial lighting

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The highest rates of piscivorous predation in the field have been recorded during crepuscular light levels associated with sunrise and sunset or artificial lighting at night (ALAN).
Jessica R. Frey, Benjamin P. Burford, Rebecca R. Robinson, Lance K. Takata, Brendan M. Lehman, Cyril J. Michel   +5 more
wiley   +1 more source

Effect of dietary lipid levels on the anti-oxidant responses, initial immunity, and mTOR signaling in the liver of coho salmon (Oncorhynchus kisutch)

Aquaculture Reports, 2022
In the present study, we evaluated the effects of dietary lipid levels on the anti-oxidant responses, initial immunity, and mTOR signaling in the liver of coho salmon Oncorhynchus kisutch.
Hairui Yu, Lingling Shan, Lingyao Li, Qin Zhang, Dongwu Liu   +4 more
doaj   +1 more source

Genetic and Ecological Management of Pacific Salmon Fisheries for the 21st Century

Fisheries Management and Ecology, EarlyView.
ABSTRACT Based on ecological adaptation theory, tremendous effort is being spent on measures that are eliminating salmon hatcheries and fishing opportunities with the intention of protecting wild runs deemed to be of particular genetic importance to the survival of the species.
Randall E. Brummett, Ian G. Cowx, Devin M. Bartley   +2 more
wiley   +1 more source

Expression of corticoid‐regulatory genes in the gills of Atlantic salmon (Salmo salar) parr and smolt and during salinity acclimation

Journal of Fish Biology, EarlyView.
Abstract In teleost fishes, cortisol is the major corticoid and has both glucocorticoid and mineralocorticoid actions. However, how fish tissues discriminate between these distinct corticosteroid actions is unclear. In mammals, the major factors responsible for intracellular corticosteroid regulation are glucocorticoid receptors (grs) and the ...
Makoto Kusakabe, Takashi Yada, Graham Young, Amy M. Regish, Stephen D. McCormick   +4 more
wiley   +1 more source

Aerobic scope is sustained through a heatwave in juvenile Atlantic salmon (Salmo salar)

Journal of Fish Biology, EarlyView.
Abstract Aquatic ectotherms are vulnerable to heatwave‐induced physiological stress, which arises from increased energy demands and reduced dissolved oxygen content in warmer waters. Understanding thermal physiology is critical for predicting how commercially and ecologically important populations could be affected by the increasing risk of rising ...
Lucy Cotgrove, Sergey Morozov, Miika Raitakivi, Evan Sala, Jenni M. Prokkola   +4 more
wiley   +1 more source

Reproductive success in wild and hatchery male coho salmon [PDF]

Royal Society Open Science, 2015
Salmon produced by hatcheries have lower fitness in the wild than naturally produced salmon, but the factors underlying this difference remain an active area of research. We used genetic parentage analysis of alevins produced by experimentally mixed groups of wild and hatchery coho salmon ( Oncorhynchus kisutch ) to
Bryan D. Neff, Shawn R. Garner, Ian A. Fleming, Mart R. Gross   +3 more
openaire   +3 more sources

Analysis of changes in biological parameters and stocks of coho salmon Oncorhynchus kisutch in the Bolshaya River (western Kamchatka) in 1941–2023

Известия ТИНРО
Changes in the spawning part of the Bolshaya River population of coho salmon are considered for 1941–2023. Long-term trends are revealed for the most important biological parameters of adults, in particular, decreasing in size, weight (except of late ...
O. M. Zaporozhets, G. V. Zaporozhets, A. M. Biryukov   +2 more
doaj   +1 more source