Issue |
Bull. Fr. Piscic.
Number 270, 1978
|
|
---|---|---|
Page(s) | 218 - 222 | |
DOI | https://doi.org/10.1051/kmae:1978006 | |
Published online | 01 September 2008 |
Premières observations de cryomarques sur les adultes de saumons atlantiques (Salmo salar L.) de la Nivelle marqués au stade smolt
First observations on adult atlantic salmon (Salmo salar L.) cold-branded as smolt in the river nivelle
I.N.R.A., Centre de Recherches Hydrobiologiques.
Laboratoire d'Ecologie des Poissons et d'Aménagement des Pêches,
B.P. 3, Saint-Pée-sur-Nivelle, 64310 ASCAIN
Les premiers retours dans la Nivelle de saumons adultes marqués à l'azote liquide avant leur libération comme smolts ont permis d'effectuer des observations sur l'aspect et la tenue de leur tatouage. Après 19 à 20 mois, 76 p.100 des grilses cryomarqués demeurent identifiables.
Abstract
Atlantic salmon smolts were cold-branded with liquid nitrogen before their release in the river Nivelle. Upon return of the adults, observations were made on the appearance and percent retention of the brand. After 19 to 20 months, identification of 76 percent of cold-branded grilse can be made.
Mots clés : saumon atlantique / marquage
© ONEMA, 1978
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