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dc.contributor.authorBraithwaite, Victoria A.eng
dc.contributor.authorSalvanes, Anne Gro Veaeng
dc.date.accessioned2009-09-02T13:05:39Z
dc.date.available2009-09-02T13:05:39Z
dc.date.issued2005-06-02eng
dc.identifier.citationProceedings of the Royal Society, London Series B 272(1568): 1107-1113en
dc.identifier.issn0962-8452eng
dc.identifier.issn1471-2954eng
dc.identifier.urihttp://hdl.handle.net/1956/3429
dc.description.abstractThe release of hatchery-reared fishes for restoring threatened and endangered populations is one of the most controversial issues in applied ecology. A central issue has been to determine whether releases cause extinction of local wild populations. This may arise either through domesticated or non-local fishes hybridizing with wild fishes, or through inappropriate behavioural interactions; for example, many hatchery fishes show exaggerated aggressive and competitive behaviour and out-compete wild counterparts. The impact of the impoverished hatchery environment in shaping behaviour is only now receiving attention. Attempts to counteract hatchery-related behavioural deficiencies have utilized intensive training programmes shortly before the fishes are released. However, we show here that simple exposure to variable spatial and foraging cues in the standard hatchery environment generates fishes with enhanced behavioural traits that are probably associated with improved survival in the wild. It appears that fishes need to experience a varying and changeable environment to learn and develop flexible behaviour. Using variable hatchery rearing environments to generate suitable phenotypes in combination with a knowledge of appropriate local genotypes, rehabilitation of wild fishes is likely to succeed, where to date it has largely failed.en
dc.language.isoengeng
dc.publisherThe Royal Societyeng
dc.subjectCodeng
dc.subjectDevelopment of behavioureng
dc.subjectRestockingeng
dc.subjectEnvironmental heterogeneityeng
dc.titleEnvironmental variability in the early rearing environment generates behaviourally flexible cod: implications for rehabilitating wild populationseng
dc.typeJournal articleeng
dc.typePeer reviewedeng
dc.subject.nsiVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497nob
dc.rights.holderCopyright 2005 The Royal Society of London.
bora.peerreviewedPeer reviewedeng
bibo.doihttp://dx.doi.org/10.1098/rspb.2005.3062eng
dc.identifier.doihttp://dx.doi.org/10.1098/rspb.2005.3062


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