Results 1 to 10 of about 6,162 (273)
Hatcheries to High Seas: Climate Change Connections to Salmon Marine Survival [PDF]
Ecology and Evolution, 2023 We investigated variations in the marine survival of Japanese hatchery chum salmon (Oncorhynchus keta) during 25 years of climate change (1998–2023).
Shuichi Kitada +2 more
doaj +4 more sources
Hatchery Salmon and Ecological Overshoot
Aquaculture, Fish and FisheriesIs there an ecological niche for ‘ocean ranched’ hatchery salmon, Oncorhynchus spp., to supplement wild salmon? Ecologically, I hypothesize that the carrying capacity for biota is: (1) limited; (2) filled with locally adapted biota competing and ...
Benjamin William Van Alen
doaj +3 more sources
Salmon hatchery strays can demographically boost wild populations at the cost of diversity: quantitative genetic modelling of Alaska pink salmon [PDF]
Royal Society Open ScienceHatcheries are vital to many salmon fisheries, with inherent risks and rewards. While hatcheries can increase the returns of adult fish, the demographic and evolutionary consequences for natural populations interacting with hatchery fish on spawning ...
Samuel A May +2 more
exaly +4 more sources
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.
Bryan D Neff +2 more
exaly +5 more sources
Social influences complement environmental cues to stimulate migrating juvenile salmon [PDF]
Movement EcologyBackground The large-scale seasonal migrations undertaken by many species require complex navigational and timing decisions. Animals migrating in groups might benefit from collective decision making, especially if the environment has large local ...
Maria Kuruvilla +10 more
doaj +2 more sources
Evolutionary Applications, 2022 Previous studies generally report that hatchery‐origin Pacific Salmon (Oncorhynchus spp.) have lower relative reproductive success (RRS) than their natural‐origin counterparts. We estimated the RRS of Pink Salmon (O.
Kyle R Shedd +2 more
exaly +2 more sources
Parallel epigenetic modifications induced by hatchery rearing in a Pacific salmon [PDF]
Proceedings of the National Academy of Sciences of the United States of America, 2017 Significance Captive rearing is known to impact the fitness of individuals released in the wild, but the relative role of genetic vs. nongenetic underlying processes is still debated. We measured genome-wide methylation profiles to document epigenetic differences between Pacific salmon originating from a hatchery and their natural ...
Jeremy Le Luyer +2 more
exaly +4 more sources
Straying of hatchery salmon in Prince William Sound, Alaska [PDF]
Environmental Biology of Fishes, 2012 The straying of hatchery salmon may harm wild salmon populations through a variety of ecological and genetic mechanisms. Surveys of pink (Oncorhynchus gorbuscha), chum (O. keta) and sockeye (O. nerka) salmon in wild salmon spawning locations in Prince William Sound (PWS), Alaska since 1997 show a wide range of hatchery straying.
Richard E Brenner
exaly +2 more sources
Wild chinook salmon survive better than hatchery salmon in a period of poor production [PDF]
Environmental Biology of Fishes, 2011 The population dynamics of chinook salmon (Oncorhynchus tshawytscha) from the Cowichan River on Vancouver Island, British Columbia, Canada are used by the Pacific Salmon Commission as an index of the general state of chinook salmon coast wide. In recent years the production declined to very low levels despite the use of a hatchery that was intended to ...
R J Beamish, R M Sweeting, C M Neville
exaly +2 more sources
Does density influence relative growth performance of farm, wild and F1 hybrid Atlantic salmon in semi-natural and hatchery common garden conditions? [PDF]
Royal Society Open Science, 2016 The conditions encountered by Atlantic salmon, Salmo salar L., in aquaculture are markedly different from the natural environment. Typically, farmed salmon experience much higher densities than wild individuals, and may therefore have adapted to living ...
Alison C. Harvey +8 more
doaj +1 more source