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

  title={A review of ecological and behavioural interactions between cultured and wild Atlantic salmon},
  author={Bror Jonsson},
  journal={Ices Journal of Marine Science},
  • B. Jonsson
  • Published 1 December 1997
  • Environmental Science, Biology
  • Ices Journal of Marine Science
Understanding the adaptive consequences of hatchery-wild interactions in Alaska salmon
  • W. Grant
  • Biology, Environmental Science
    Environmental Biology of Fishes
  • 2011
The preservation of adaptive potential in wild populations is an important buffer against diseases and climate variability and, hence, should be considered in planning hatchery production levels and release locations.
Fitness reduction and potential extinction of wild populations of Atlantic salmon, Salmo salar, as a result of interactions with escaped farm salmon
It is demonstrated that interaction of farm with wild salmon results in lowered fitness, with repeated escapes causing cumulative fitness depression and potentially an extinction vortex in vulnerable populations.
Farmed Atlantic Salmon in Nature
Farmed Atlantic salmon escape unintentionally from hatcheries and fish farm and occur both in the Atlantic and the Pacific Oceans. These fish exploit natural feeding areas in fresh water and at sea,
Lifetime success and interactions of farm salmon invading a native population
It is indicated that such annual invasions of farm salmon have the potential for impacting on population productivity, disrupting local adaptations and reducing the genetic diversity of wild salmon populations.
History and effects of hatchery salmon in the Pacific
The history of hatcheries around the Pacific Rim is addressed and potential negative implications of hatchery-produced salmon are considered through discussions of biological impacts and biodiversity, ecological impacts and competitive displacement, fish and ecosystem health, and genetic impacts ofHatchery fish as threats to wild populations of Pacific salmon.
Evaluation of an alternative strategy to enhance salmon populations: Cage rearing wild smolts from Conne River, Newfoundland
Five-thousand wild Atlantic salmon (Salmo salar L.) smolts from Conne River, Newfoundland, were captured during their downstream migration in May 1995, and transferred to an estuarine aquaculture
One species with two biologies: Atlantic salmon (Salmo salar) in the wild and in aquaculture
This paper explains why escaped domestic Atlantic salmon have had an impact on wild Atlantic salmon populations and now threaten Pacific salmonids as well and why a polarization of views between aquaculturists and environmentalists will not resolve the problems.
The relative roles of domestication, rearing environment, prior residence and body size in deciding territorial contests between hatchery and wild juvenile salmon
The results show that, while juvenile farmed Atlantic salmon are inherently more aggressive than wild-origin fish, the hatchery environment reduces their ability to compete for territories with wild resident fish.


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)
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
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
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
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
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
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.