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Titolo:
Competition among juvenile Atlantic salmon (Salmo salar) and steelhead (Oncorhynchus mykiss): relevance to invasion potential in British Columbia
Autore:
Volpe, JP; Anholt, BR; Glickman, BW;
Indirizzi:
Univ Victoria, Dept Biol, Victoria, BC V8W 3N5, Canada Univ Victoria Victoria BC Canada V8W 3N5 ol, Victoria, BC V8W 3N5, Canada Univ Victoria, Ctr Environm Hlth, Victoria, BC V8W 3N5, Canada Univ Victoria Victoria BC Canada V8W 3N5 th, Victoria, BC V8W 3N5, Canada
Titolo Testata:
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
fascicolo: 1, volume: 58, anno: 2001,
pagine: 197 - 207
SICI:
0706-652X(200101)58:1<197:CAJAS(>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
CICHLIDS CICHLASOMA-NIGROFASCIATUM; TIT PARUS-MAJOR; PRIOR RESIDENCE; RAINBOW-TROUT; BEHAVIORAL INTERACTION; BROWN TROUT; STREAM; ASYMMETRIES; GAIRDNERI; HATCHERY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
45
Recensione:
Indirizzi per estratti:
Indirizzo: Volpe, JP Univ Victoria, Dept Biol, Box 3020, Victoria, BC V8W 3N5, CanadaUniv Victoria Box 3020 Victoria BC Canada V8W 3N5 8W 3N5, Canada
Citazione:
J.P. Volpe et al., "Competition among juvenile Atlantic salmon (Salmo salar) and steelhead (Oncorhynchus mykiss): relevance to invasion potential in British Columbia", CAN J FISH, 58(1), 2001, pp. 197-207

Abstract

Atlantic salmon (Salmo salar) are routinely captured in both freshwater and marine environments of coastal British Columbia (Canada). Recent evidencesuggests that this species is now naturally reproducing in Vancouver Island rivers. Our objective was to quantify the performance of each species in intra- and inter-specific competition by assessing the competitive ability of Atlantic salmon sympatric with native niche equivalent steelhead - rainbow trout (Oncorhynchus mykiss). Significant behavioural differences, particularly with respect to agonism, were observed between species; however, thestatus of an individual as resident or challenger was the best predictor of performance. Resident fish always outperformed challengers, regardless ofspecies. Thus, we suggest that Atlantic salmon may be capable of colonizing and persisting in coastal British Columbia river systems that are underutilized by native species, such as the steelhead.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/01/20 alle ore 19:17:47