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Ventilation rates indicate stress-coping styles in Nile tilapia

Authors
  • Barreto, Rodrigo E1
  • Volpato, Gilson L1
  • 1 Campus de Botucatu – Rubião Jr, Instituto de Biociências, UNESP – Univ Estadual Paulista, Departamento de Fisiologia, Botucatu, São Paulo, 18618-000, Brazil , Botucatu (Brazil)
Type
Published Article
Journal
Journal of Biosciences
Publisher
Springer-Verlag
Publication Date
Sep 23, 2011
Volume
36
Issue
5
Pages
851–855
Identifiers
DOI: 10.1007/s12038-011-9111-4
Source
Springer Nature
Keywords
License
Yellow

Abstract

Behavioural responses to stress can form distinct profiles in a wide range of animals: proactive and reactive profiles or coping styles. Stress responsiveness can also differentiate between the behavioural profiles. The tendency to regain feed intake following transfer to a novel social-isolation tank (the speed of acclimation) can discriminate between proactive or reactive profiles. Consequently, differential stress responsiveness can be linked to this feeding behaviour trait. This study shows that ventilation rates of Nile tilapia, Oreochromis niloticus (L.), correlate with the rate of feeding resumption, following transfer to a novel social-isolation aquarium. Therefore, ventilation rate (VR) indicates coping styles; consequently, VR is a proxy for the way fish will deal with environmental challenges.

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