Results 71 to 80 of about 36,076 (277)

Effects of the Invasive Round Goby on Swedish Recreational Fishing Values

Fisheries Management and Ecology, EarlyView.
ABSTRACT The round goby, an invasive fish from the Black and Caspian Seas, has spread to Swedish waters, threatening recreational fisheries. We modeled impacts on the future recreational fishery in Sweden using data from a recreational fishing survey, and estimated effects of the round goby on other fish species. Values attached to recreational fishing
Göran Bostedt, Ola Carlén, Rahmat Naddafi, Ann‐Britt Florin   +3 more
wiley   +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

The physiological response of juvenile diploid and triploid Arctic charr Salvelinus alpinus to exhaustive exercise

Journal of Fish Biology, EarlyView.
Abstract Triploidy is an effective tool for producing sterile fishes but often results in impaired performance in commercial aquaculture. In light of this, our study compared the physiological response to exhaustive exercise in juvenile diploid and triploid Arctic charr Salvelinus alpinus, a polar species with great potential for aquaculture.
John D. Clark, Tillmann J. Benfey
wiley   +1 more source

Reservoirs and radiocarbon: ¹⁴C dating problems in Myvatnssveit, Northern Iceland [PDF]

, 2007
This paper examines 2 potential sources of the radiocarbon offset between human and terrestrial mammal (horse) bones recovered from Norse (~AD 870–1000) pagan graves in Mývatnssveit, north Iceland.
Ascough, P.L., Church, M.J., Cook, G.T., Dugmore, A.J., Dunbar, E., Einarsson, E., Frioriksson, A., Gestsdottir, H., McGovern, T.G.   +8 more
core  

Arctic lake trout (Salvelinus namaycush) show evidence of seasonal acclimation of cardiac adrenergic sensitivity but not heat tolerance

Journal of Fish Biology, EarlyView.
Abstract Many Arctic fishes experience prolonged periods of extreme cold and large thermal variation over both rapid and seasonal time scales which challenge critical physiological functions. In the central Canadian Arctic, we caught wild adult lake trout (Salvelinus namaycush) acclimatized to winter and summer temperatures to determine the extent to ...
Emily P. Williams, Les N. Harris, Jean‐Sébastien Moore, Ella K. Middleton, Shira A. Berkelhammer, Ben Speers‐Roesch, Matthew J. H. Gilbert   +6 more
wiley   +1 more source

Contemporary effective population and metapopulation size (Ne and meta‐Ne): comparison among three salmonids inhabiting a fragmented system and differing in gene flow and its asymmetries

Ecology and Evolution, 2013
We estimated local and metapopulation effective sizes (N^e and meta‐N^e) for three coexisting salmonid species (Salmo salar, Salvelinus fontinalis, Salvelinus alpinus) inhabiting a freshwater system comprising seven interconnected lakes.
Daniel Gomez‐Uchida, Friso P. Palstra, Thomas W. Knight, Daniel E. Ruzzante   +3 more
doaj   +1 more source

Survival of "dry" salmonid sperm at temperatures above 0° centigrade [PDF]

Acta Ichthyologica et Piscatoria, 1974
Survival of sperm from Salmo trutta L., Salmo gairdneri Rich., Salvelinus fontinalis (Mitch.) was investigated at constant temperatures (1.0°; 5.0°; 10.0°; 15.0°C).
L. Tomasik
doaj   +3 more sources

Systematics of Beringian threespine sticklebacks [PDF]

, 2000
Thesis (M.S.) University of Alaska Fairbanks, 2000In Pleistocene Beringia, large-scale glaciations exposed high latitude species to variable environmental conditions that created disjunct populations of terrestrial and marine species.
Chythlook, John S.
core  

Bull trout (Salvelinus confluentus) exhibit binge‐feeding and digestive flexibility during seasonal resource pulses associated with salmon migrations

Journal of Fish Biology, EarlyView.
Abstract Resource pulses are infrequent, ephemeral events of resource hyperabundance that can represent important feeding opportunities for consumers. To capitalize on pulsed resources, consumers can exhibit behavioural and physiological traits including binge‐feeding and phenotypic plasticity of digestive physiology, although expression of these ...
Adam M. Kanigan, Scott G. Hinch, Andrew G. Lotto, Patrick Zubick, Nathan B. Furey   +4 more
wiley   +1 more source

Revue bibliographique - Principales caractéristiques de l'élevage de l'omble chevalier (Salvelinus alpinus L.) en eau douce

Knowledge and Management of Aquatic Ecosystems, 1992
L'omble chevalier (Salvelinus alpinus L.) est un salmonidé d'eau froide. Ses caractéristiques physiologiques et biologiques étant différentes de celles des autres poissons de la même famille, les pratiques d'élevage ne sont pas identiques. Les principaux
GUILLARD J., GILLET C., CHAMPIGNEULLE A.
doaj   +1 more source