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Auteur (up) Benhaim, D.; Ferrari, S.; Colchen, T.; Chatain, B.; Begout, M.-L. doi  openurl
  Titre Relationship between individual and group learning in a marine teleost: A case study with sea bass under self-feeding conditions Type Article scientifique
  Année 2017 Publication Revue Abrégée Learn Behav.  
  Volume 45 Numéro 3 Pages 276-286  
  Mots-Clés animal groups; Behavior; dicentrarchus-labrax; example; fish; Group conditions; growth; Juveniles; Operant conditioning; Personality traits; Positive reinforcement; Producer-scrounger; producer-scrounger game; Social structure; traits; zebrafish danio-rerio  
  Résumé Fish learning and cognition are usually approached by testing single individuals in various devices such as mazes that have serious drawbacks, especially in gregarious species, including the stress induced by the test procedure. This might impair the results and lead to misinterpretation about the learning abilities of the targeted species. In order to provide an alternative to the individual-based tests, we investigated for the first time the operant conditioning of four similar groups (50 individuals per tank) of sea bass. We used two computerized self-feeder devices per tank, each coupled with individual electronic identification and that were alternately activated during varying positive appetitive reinforcement period of time (7 to 1 day). Learning abilities were examined at both group and individual levels. At the group level, the operant conditioning was demonstrated as the triggering activity significantly decreased when the device was turned off and increased when it was turned on, whatever the reinforcement period duration. The individual level analysis revealed a more complex situation with fish showing different learning performances that can be best explained through the producer-scrounger game theory.  
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  Langue English Langue du Résumé Titre Original  
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  Volume de collection Numéro de collection Edition  
  ISSN 1543-4494 ISBN Médium  
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  Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 2191  
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