Results 41 to 50 of about 4,117 (224)
Effect of Thermal Stress on Predator Avoidance in Sockeye Salmon [PDF]
, 1972 Under laboratory conditions, predation rates of yearling coho salmon (Oncorhynchus kisutch) on sockeye salmon fry (Oncorhynchus nerka) increased with increasing acclimation temperature.
J. R. Sylvester
core +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 +2 more
wiley +1 more source
Известия ТИНРО, 2021 Fishery pressure on populations of pacific salmons has increased in the Rusian Far East in the last decade because of growing fishing and processing capacity, so measures for the fishery regulation are necessary, as the regime of pass days in rivers and ...
E. A. Shevlyakov +2 more
doaj +1 more source
Genes, fish and fisheries: translating science into policy
Journal of Fish Biology, EarlyView.Abstract The 2024 Annual Symposium of the Fisheries Society of the British Isles reviewed the burgeoning impact of ‘omics’ technologies on fish ecology, management and forecasting. As with life sciences more generally, major advances in speed, cost‐effectiveness and breadth of applications in ‘omics’ has had profound societal and environmental impacts.
Gary R. Carvalho
wiley +1 more source
Juvenile salmon usage of the Skeena River estuary.
PLoS ONE, 2015 Migratory salmon transit estuary habitats on their way out to the ocean but this phase of their life cycle is more poorly understood than other phases. The estuaries of large river systems in particular may support many populations and several species of
Charmaine Carr-Harris +2 more
doaj +1 more source
Differential use of salmon by vertebrate consumers: implications for conservation [PDF]
PeerJ, 2015 Salmon and other anadromous fish are consumed by vertebrates with distinct life history strategies to capitalize on this ephemeral pulse of resource availability.
Taal Levi +3 more
doaj +2 more sources
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 +4 more
wiley +1 more source
Journal of Fish Biology, EarlyView.Abstract Dietary analysis has contributed to our understanding of animal niches, interspecific interactions, community structure and the flow of matter and energy in food webs. We employed three methods of dietary analysis to estimate trophic niche overlap between two peacock bass species, Cichla cataractae and Cichla ocellaris, across sympatric ...
Benton L. Fry +2 more
wiley +1 more source
Participation of Thyroxine in Smoltification of Sockeye salmon (Oncorhynchus nerka) [PDF]
, 2004 チロキシン(4)がベニザケのスモルト化に果たす役割を明らかにするため、海水適応能、つま黒、肥満度から判断されるスモルト化と血中4濃度の周年変化を調べた。自然日長下で飼育されたベニザケ幼魚は、1月から5月にかけて徐々に海水適応能を高めた。つま黒の発現と肥満度の減少は5月に認められた。血中4濃度は1月から3月にかけて有意な上昇を示した。一方、人為的に日長を短日（LD 8：16）から長日（LD 16：8）へ切り換えることで、一時的な血中4濃度の上昇と、それに続くスモルト化を誘起することができた。しかし ...
Ban, Masatoshi +2 more
core
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 +2 more
wiley +1 more source