7 2The prey capture behaviour of Metepeira gressa (Araneae, Araneidae) on mealworms, flies and antsEstudo de caso: a reutilização de células de ninho abandonado de Polistes (Aphanilopterus) simillimus Zikán, 1951 (Hymenoptera: Vespidae, Polistinae) por Tetrapedia (Tetrapedia) diversipes Klug, 1810 (Hymenoptera: Apidae, Apinae) 
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Revista de Etologia

 ISSN 1517-2805 ISSN 2175-3636

GOUVEIA JR, Amauri et al. Preference of goldfish (Carassius auratus) for dark places. Rev. etol. []. 2005, 7, 2, pp.63-66. ISSN 1517-2805.

In order to determine their preference for dark or bright environments, goldfishes (Carassius auratus) were tested in an aquarium, in which they could swim out of a start compartment either into a black or into a white compartment. The following records were obtained: (1) first compartment chosen, (2) frequency of entries into each compartment and (3) time spent in each compartment. Results indicate that, in such experimental conditions, C. auratus has a significant preference for a dark environment, a feature that might be relevant for the development of an experimental model of anxiety for the study of this species.

: Dark preference; Goldfish; Carassius auratus.

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