Consulta: creatorFacets:"Heuch, P.A."
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Data/hora: 11/06/2024 10:12:27

Size as indicator of origin of salmon lice Lepeophtheirus salmonis (Copepoda: Caligidae)
Provedor de dados: 16
Autores: Nordhagen, J.R.; Heuch, P.A.; Schram, T.A.
Salmon lice Lepeophtheirus salmonis (Krøyer, 1837) from farmed Atlantic salmon have been implicated in the drastic sea trout and salmon stock declines found in Ireland and Norway. Can salmon lice from farmed and wild fish be distinguished? The hypothesis has been advanced that the treatment of salmon infested with salmon lice with organophosphate pesticides has resulted in the evolution of early maturing, smaller female lice, which are favoured because they have the chance to reproduce before treatment. Salmon lice on wild fish have been reported to be larger and have more eggs in their egg strings (sacks) than lice on farmed fish. The question is whether the size differences between the lice are genetically fixed or an expression of phenotypic plasticity....
Tipo: Article / Letter to the editor
Palavras-chave: Salmon lice; Origin; Size; Phenotypic plasticity.
Ano: 2000
URL: http://www.repository.naturalis.nl/record/534287