Food selection in cod (Gadus morhua): reactions to colour and smell. In: Flødevigen rapportserie no 1, 1990
Research report
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http://hdl.handle.net/11250/115164Utgivelsesdato
1990Metadata
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Sammendrag
Cod were offered food and food imitations with various colours and
smells. When offered crabs with natural colour and with the carapace
painted in red, yellow or green, they showed no significant preference.
Neither did they react differently to pieces of shnmps with natural
colours or pieces coloured red or green. In a series of lures, those giving
the best contrast to the water surface were usually selected first. When
food and artificial imitations were offered simultaneously, the food was
normally taken first. Cod reacted similarly to pieces of shrimps soaked in
alcohol and to natural shrimps. They also had the same response when
offered shrimps and a paste made of fish and shrimps simultaneously.
When offered a paste made of crabs and one made of mackerel. they
preferred the one made of crabs.
Utgiver
HavforskningsinstituttetSerie
Flødevigen rapportserie1, 1990