Abstract：
:Currently, the black/white preference test has been used to evaluate anxiety-like behaviors in zebrafish. However, several inconsistent results have been reported across literature. Since animal behavior can be influenced by several environmental factors, the main goal of the present study was to investigate the influence of different water column depths and light intensities on zebrafish behavioral responses in the black/white test. On a 4cm water column depth, animals spent more time in the black than in the white compartment. However, when animals were tested in an 8cm water column, no significant difference was found. Using an inclined acrylic floor inside the aquarium, animals spent more time in the deep compartment when this was black. However, there is no difference in time spent in each compartment when the deeper compartment was white. For light intensity test, animals showed preference for the white compartment only when both compartments were illuminated with 100lx. For the others illumination settings, there was no difference in the compartment preference. In conclusion, our results suggest that variations in water column depth and light intensity can modulate zebrafish preference in the black/white test. These variations may be implicated in the discrepancies observed in literature.
journal_name
Neurosci Lettjournal_title
Neuroscience lettersauthors
Córdova SD,Dos Santos TG,de Oliveira DLdoi
10.1016/j.neulet.2016.03.008subject
Has Abstractpub_date
2016-04-21 00:00:00pages
131-6eissn
0304-3940issn
1872-7972pii
S0304-3940(16)30138-0journal_volume
619pub_type
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