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Density-dependent g...
Density-dependent growth in hatchery-reared brown trout released into a natural stream
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- Sundström, L. Fredrik, 1972 (författare)
- Gothenburg University,Göteborgs universitet,Zoologiska institutionen,Department of Zoology
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- Bohlin, Torgny, 1945 (författare)
- Gothenburg University,Göteborgs universitet,Zoologiska institutionen,Department of Zoology
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- Johnsson, Jörgen I, 1959 (författare)
- Gothenburg University,Göteborgs universitet,Zoologiska institutionen, ekologisk zoologi,Department of Zoology, Animal Ecology
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(creator_code:org_t)
- Wiley, 2004
- 2004
- Engelska.
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Ingår i: Journal of Fish Biology. - : Wiley. - 0022-1112 .- 1095-8649. ; 65:5, s. 1385-1391
- Relaterad länk:
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Hatchery-reared brown trout Salmo trutta stocked in a natural stream in addition to resident wild brown trout grew more slowly than those stocked with an experimentally reduced density of brown wild trout. In both cases, hatchery-reared brown trout grew more slowly than resident wild fish in control sections. Mortality and movements did not differ among the three categories of fish. The results showed that growth of stocked hatchery-reared brown trout parr was density-dependent, most likely as a consequence of increased competition. Thus, supplementary release of hatchery-reared fish did not necessarily increase biomass. (C) 2004 The Fisheries Society of the British Isles.
Ämnesord
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Nyckelord
- density-dependence
- enhancement
- growth
- hatchery
- movement
- stocking
- salmo-trutta l
- body-size
- territorial contests
- rearing environment
- prior residence
- wild
- competition
- stocking
- skills
- fish
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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