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Recapture rate, growth and sex of stocked cultured eels Anguilla anguilla (L.)
A total of 84,791 Alcian blue marked eels, size range 15 - 33 cm, were released in a lake, a fjord and an open coastal area. Recaptures were made by fishermen up to 4 years following release. Recaptures were most successful at the freshwater lake where 12.6 % were recaptured, 2.7 % in the fjord and 0.2 % at the open coast. Length increment was estimated to be between 2.5 and 6.5 cm annually. T h e sex ratio (female/male) of yellow eels increased in subsequent years of recaptures, possibly as a result of environmental sex determination following release. The use of Alcian blue for a long-term marking experiment, based on samplings by fishermen, are concluded to be questionable.
Auteurs du document :
M. I. PEDERSENObtenir le document :
EDP SciencesMots clés :
anguilla, stocking, recapture rate, growth, sex, anguilla, alevinage, taux de recapture, croissance, sexeThème (issu du Text Mining) :
MILIEU NATUREL, FAUNEDate :
2008-08-01Format :
text/xmlSource :
https://doi.org/10.1051/kmae:1998040Langue :
AnglaisTélécharger les documents :
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Ce portail, créé et géré par l'Office International de l'Eau (OiEau), est géré avec l'appui de l’Office français de la biodiversité (OFB)
Ce portail, créé et géré par l'Office International de l'Eau (OiEAU), est géré avec l'appui de l’Office français de la biodiversité (OFB)