Seasonal reproductive cycle of Ballan wrasse (Labrus bergylta) in Norway

Muncaster S., Andersson E., Skiftesvik A.B., Opstad I., Taranger G.L., Norberg B.

Date de parution: juillet 2008
Volume: 32
Number: 2 suppl.
Pagination: 199
Editeur: Société Française d'Ichtyologie

Two hundred and twenty four fish were caught over a 19 month period to investigate the reproductive cycle of Labrus bergylta in Norway. The gonadosomatic index of wild-caught L. bergylta was greatest during late-spring, this also coincided with the peak plasma levels of 11 ketotestosterone in male fish.

Mots-clés: 11 ketotestosterone - Gonadosomatic index - Labrus bergylta - Protogynous
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