Overvintring av bergnebb (Ctenolabrus rupestvis) i lukkede teiner

Abstract

This report describes a pilot-study on overwintering of wrasse that had been used for delousing of salmon. Four groups of 50 goldsinny were kept in wrasse pots with blinded entrances, submerged to 2- 13 m depth. From December to May, the survival of goldsinny was from 46% to 68%. Alternative methods and suggestions for further developments are discussed.NORSK SAMMENDRAG: For å kunne benytte samme leppefisk for avlusing av laks i mer enn en sesong, er muligheten for overvintring i lukkede teiner undersøkt. Overlevelsen var på 46%-68% i en periode fra desember til mai. Alternative metoder og forslag til videre undersø- kelser er diskutert.