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| Millot, Sandie; Nilsson, Jonatan; Fosseidengen, Jan Erik; Begout, Marie-laure; Kristiansen, Tore. |
| Among other applications, self-feeding has been used to study food preferences in fish allowing them to choose between feeders with different food content. Preference tests assume that (i) trigger actuations are motivated by appetite, (ii) fish can learn which feeder contains which food and discriminate between feeders solely on the basis of their content, and (iii) in groups of fish, the triggering preferences is representative for the individuals of the group. We studied individual triggering behaviour in four groups of 14 Atlantic cod (length of 34 +/- 2 cm, weight of 424 +/- 102 g, mean +/- SE, water temperature comprised between 7-8 degrees C) that were first given the choice between two self-feeders with identical content (Period 1 of 14 days) and... |
| Tipo: Text |
Palavras-chave: Learning; Self-feeding; Social status; Behaviour; Coping abilities; Gadidae. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00116/22754/20605.pdf |
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| Carpentier, Andre. |
| Since 1988, the IFREMER Fisheries Resources Laboratory in Boulogne-sur-Mer is carrying out a pluriannual project in the Eastern Channel to estimate, directly and by age groups, the abundance and the recruitment of species of commercial interest. These data are obtained during an annual trawl survey (taking place in October) which gives indications about the fish populations distribution and allows to get biological informations needed for stock assessments. The present study aimed to analyse the distribution and the abundance of whiting (Merlangius merlangus). In the Channel, this species is one of the most exploited by the French small-scale fishery. The results showed that the whiting distribution was mainly restricted to shallow waters in October and... |
| Tipo: Text |
Palavras-chave: Gadidae; Merlangius merlangus; Whiting; ANE; English channel; Abundance; Distribution. |
| Ano: 1998 |
URL: https://archimer.ifremer.fr/doc/00446/55786/62758.pdf |
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