Agonistic profile and metabolism in alevins of the Nile tilapia

Metabolic differences derived from social stress usually show data with high variance that may hinder the finding of important differences. Since such high variance may be caused by agonistic variability occurring during social interactions, this work tested whether metabolism is associated with ago...

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Bibliographic Details
Published in:	Physiology & behavior Vol. 57; no. 1; pp. 75 - 80
Main Authors:	Alvarenga, Cláudia Maria Domingues, Volpato, Gilson Luiz
Format:	Journal Article
Language:	English
Published:	Cambridge Elsevier Inc 1995 New York, NY Elsevier
Subjects:	Agonistic Behavior - physiology Anatomical correlates of behavior Animals Behavior Behavior, Animal - physiology Behavioral psychophysiology Biological and medical sciences Confrontation Dominance hierarchy Energy Metabolism Fish Fundamental and applied biological sciences. Psychology Hypoxia Hypoxia - metabolism Metabolism Nile tilapia Oreochromis niloticus Oxygen Consumption Psychology. Psychoanalysis. Psychiatry Psychology. Psychophysiology Respiration Social Dominance Social stress Space life sciences Tilapia - metabolism Tilapia - physiology Ventilatory rate Oreochromis niloticus Ventilatory rate Oxygen consumption Hypoxia Fish Social stress Behavior Confrontation Metabolism Respiration Nile tilapia Dominance hierarchy Intraspecific relation Young animal Stress Freshwater environment Vertebrata Social dominance Social interaction Pisces Ventilation Agonistic behavior
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Summary:	Metabolic differences derived from social stress usually show data with high variance that may hinder the finding of important differences. Since such high variance may be caused by agonistic variability occurring during social interactions, this work tested whether metabolism is associated with agonistic profile in the cichlid fish Nile tilapia, Oreochromis niloticus (L.). Metabolism was inferred from oxygen consumption, resistance to progressive hypoxia and ventilatory rate. Fifteen pairs of alevins were used for each metabolic and behavioral series. An ethogram based on 8 types of agonistic interactions was employed. Agonistic profiles were determined and associated with the physiological parameters later on. The test of canonical correlation showed significant association between some agonistic profiles and metabolism. Ventral nipping and lateral fight appeared as the two most important in promoting association with metabolism.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0031-9384 1873-507X
DOI:	10.1016/0031-9384(94)00206-K