Results 111 to 120 of about 9,372 (204)

Age and length composition of Columbia Basin chinook, sockeye, and coho salmon at Bonneville Dam in 2000 [PDF]

, 2001
In 2000, representative samples of adult Columbia Basin chinook (Oncorhynchus tshawytscha), sockeye (O. nerka), and coho salmon (O. kisutch), populations were collected at Bonneville Dam. Fish were trapped, anesthetized, sampled for scales and biological
Fryer, Jeffrey K., Kelsey, Denise A.
core  

Pacific Salmon, Oncorhynchus spp., and the Definition of "Species" Under the Endangered Species Act [PDF]

, 1991
For purposes ofthe Endangered Species Act (ESA), a "species" is defined to include "any distinct population segment of any species of vertebrate fish or wildlife which interbreeds when mature. "Federal agencies charged with carrying out the provisions of
Waples, Robin S.
core  

Extinction by Miscalculation: [PDF]

Species at Risk Act, Sakinaw sockeye, Cultus sockeye, fisheries management, extinction.
Barbara Roberts, Mart R Gross, Matthew A Turner, Mike Parkes, Pablo Montagnes, Paul Riis   +5 more
core  

Genetic and phenotypic diversity in sockeye salmon, Oncorhynchus nerka

, 2013
The research described here is the collective efforts of my MS work in two labs at the Univeristy of Washington, the Seeb Lab and the Roberts Lab, on two different projects. The first chapter was motivated by a need for improved genetic tools for the management of sockeye salmon specifically those populations inhabiting Bristol Bay.
openaire   +1 more source

Lohenkalastuksen kantakohtaiset säätelyjärjestelmät : Kirjallisuuskatsaus [PDF]

, 2016
Atlantin ja Tyynenmeren lohikannat ovat taantuneet viime vuosikymmeninä monista syistä, mm. merellä tapahtuneen voimakkaan sekakantakalastuksen takia. Merikalastusta onkin monin paikoin rajoitettu tai se on lopetettu kokonaan, jotta lohikannat elpyisivät.
Erkinaro, Jaakko, Kanniainen, Timo, Niva, Teuvo, Orell, Panu   +3 more
core  

Surface ocean currents and distribution of organisms [PDF]

, 2011
Morske struje su stalna gibanja mora, a rezultat su kombiniranog djelovanja vjetra, temperature i saliniteta. Iako poput valova i struje djeluju na gibanje čestica u moru, one ipak nemaju takvu snagu kojom bi mogle oštetiti organizme.
Homan, Dora
core   +2 more sources

Vertical eDNA distribution of cold‐water fishes in response to environmental variables in stratified lake

Ecology and Evolution
In summer, the survival zones of cold‐water species are predicted to narrow by both increasing water temperatures from the surface and by expanding hypoxic zones from the lake bottom.
Kayoko Fukumori, Natsuko I. Kondo, Ayato Kohzu, Kenji Tsuchiya, Hiroshi Ito, Taku Kadoya   +5 more
doaj   +1 more source

Consumption Rates, Evacuation Rates and Diets of Pygmy Killifish, Leptolucania ommata, and Mosquitofish, Gambusia affinis in the Okefenokee Swamp [PDF]

, 1991
I studied feeding dynamics of Leptolucania ommata and Gambusia affinis in the Okefenokee Swamp. Both fishes mainly ate insect larvae (such as Chironomidae) and Cladocera. Evacuation rates ranged from 0.143 (L. ommala in winter) to 0.279/hour (L.
Oliver, J. Douglas
core  

Travel specific resource selection by female Kodiak brown bears during the sockeye salmon spawning season

Movement Ecology
Background Access to salmon resources is vital to coastal brown bear (Ursus arctos) populations. Deciphering patterns of travel allowing coastal brown bears to exploit salmon resources dispersed across the landscape is critical to understanding their ...
William B. Leacock, Kurt T. Smith, William W. Deacy   +2 more
doaj   +1 more source

Genomic Changes Associated with Reproductive and Migratory Ecotypes in Sockeye Salmon (Oncorhynchus nerka). [PDF]

Genome Biol Evol, 2017
Veale AJ, Russello MA.
europepmc   +1 more source