A review of ecological and behavioural interactions between cultured and wild Atlantic salmon

@article{Jonsson1997ARO,
  title={A review of ecological and behavioural interactions between cultured and wild Atlantic salmon},
  author={Bror Jonsson},
  journal={Ices Journal of Marine Science},
  year={1997},
  volume={54},
  pages={1031-1039}
}
  • B. Jonsson
  • Published 1 December 1997
  • Environmental Science, Biology
  • Ices Journal of Marine Science
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References

SHOWING 1-10 OF 75 REFERENCES
Interactions between wild and cultured Atlantic salmon: a review of the Norwegian experience
An experimental study of the reproductive behaviour and success of farmed and wild Atlantic salmon (Salmo salar)
TLDR
Adult farmed fish are likely to be relatively unsuccessful in natural environments due to a competitive and reproductive inferiority apparently resulting from domestication.
Timing of spawning in cultured and wild Atlantic salmon (Salmo salar) and brown trout (Salmo trutta) in the River Vosso, Norway
TLDR
The early time of breeding in nonnative fish indicates local adaptation in this trait in wild salmon and the consequences of early breeding of cultured fish are unpredictable in relation to spring temperatures but probably reduce their relative breeding success.
Effects of early experience on the reproductive performance of Atlantic salmon
TLDR
It is indicated that early experience has implications for subsequent adult reproductive performance, affecting the development of specialized skills and traits important not only for early life, but also later life.
Phenotypic Divergence of Sea-ranched, Farmed, and Wild Salmon
TLDR
Greater adult divergence from the wild state was observed in multigeneration sea-ranched coho salmon, suggesting that evolutionary changes may accumulate with time.
High numbers of farmed Atlantic salmon. Salmo salar L., observed in oceanic waters north of the Faroe Islands
TLDR
The proportion of fanned fish was estimated to range from 25 to 48% in the different samples, suggesting that high numbers of escaped farmed salmon occur in the Norwegian Sea, suggesting it is suggested that most of the farmed fish are of Norwegian origin.
Genetic divergence and interactions in the wild among native, farmed and hybrid Atlantic salmon
TLDR
The results suggest that innate differences in behaviour and growth, that probably are linked closely to fitness, will threaten native populations through competition and disruption of local adaptations.
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