Temperature modifies activity, inter-individual relationships and group structure in a fish

Current Zoology
Tatiana ColchenAlain Pasquet

Abstract

A host of abiotic factors modify fish social behavior. However, few studies have characterized the effects of temperature on behavior. In this study, brown troutSalmo truttafry were reared at 5 different temperatures (4°C, 6°C, 8°C, 10°C, and 12°C). In order to characterize group structure, 3 behavioral parameters were investigated: group social structure (based on inter-individual distances), inter-individual relationships (based on physical contacts), and individual activity. These behavioral parameters were studied at the emergence stage, which corresponds to a switch from a social gregarious life in the gravel to a solitary one in the water column. Data analysis showed that the inter-individual distances increased with increasing temperature, particularly the nearest neighbor distance. The mean number of physical contacts between fry increased at both low and high temperatures. At high temperatures, most fry moved apart from each other after a physical contact. Swimming activity decreased at both the lower and upper temperatures (18% of activity at 4°C, 38% at 8°C, and 12% at 12°C). This study showed that temperature modifies brown trout fry activity, inter-individual relationships, and social behavior, which all affect gro...Continue Reading

References

Feb 26, 1999·Journal of Theoretical Biology·G FlierlD Olson
Mar 10, 2001·Journal of Thermal Biology·A F. OjangurenF Braña
Aug 19, 2006·The Journal of Experimental Biology·Guy ClaireauxAnne-Laure Groison
Aug 21, 2007·Behavioural Brain Research·Noam Miller, Robert Gerlai
Oct 2, 2009·Proceedings. Biological Sciences·Peter A BiroJudy A Stamps

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Citations

Oct 18, 2019·Fish Physiology and Biochemistry·Quentin PetitjeanLisa Jacquin
Dec 19, 2018·Frontiers in Endocrinology·Nataly SanhuezaSebastian Boltana
Oct 16, 2020·Fish Physiology and Biochemistry·Prasun RoychowdhuryManoj Kumar Pati

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