A place preference test in the fish Nile tilapia |
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Authors: | Helton Carlos Delicio,Rodrigo Egydio Barreto,Edvaldo Bento Normandes,Ana Carolina Luchiari,Ana Lú cia Marcondes |
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Affiliation: | Departamento de Fisiologia, Instituto de Biociências, UNESP, 18618-000 Botucatu, SP, Brazil |
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Abstract: | The Nile tilapia fish (Oreochromis niloticus) has a high potential to be used as a model in neuroscience studies. In the present study, the preference of the Nile tilapia between a gravel-enriched (GEE), a shelter-enriched (SEE) or a non-enriched (NEE) environment was determined, for developing a place preference model. Nile tilapia had an initial preference for GEE, but after 1 day of observation, the fish stabilized their frequency of visits among compartments. Hence, any stimulus motivating tilapia increase in compartment visiting indicates a positively reinforcing effect. This feature is very useful for the development of new behavioural paradigms for fish in tests using environmental discrimination, such as the conditioning place preference test. |
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Keywords: | Conditioning place preference Behaviour Oreochromis niloticus Nile tilapia Fish |
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