University of Tasmania
Browse

File(s) not publicly available

Endocrine and metabolic responses to stress in a laboratory population of the tropical damselfish Acanthochromis polyacanthus

journal contribution
posted on 2023-05-16, 14:55 authored by Begg, K, Pankhurst, NW
The effects of confinement and exercise on the stress response of the spiny damselfish Acanthochromis polyacanthus were investigated in a laboratory stock of fish. Cultured spiny damselfish had basal plasma cortisol values (<16ng ml-1) similar to those found in wild fish, and basal plasma glucose and lactate levels that were similar to those found in other teleosts. Plasma cortisol concentrations increased in response to stress with a latency period of 5-10 min. Removal of the stressor resulted in partial recovery of cortisol levels by 24 h. Plasma glucose levels increased in response to stress in all experiments with significant increases occurring within 15 min of the imposition of stress. Elevations in plasma glucose concentrations were not initially reflected in changes in liver or muscle glycogen content, with significant reductions in liver glycogen concentrations only occurring in response to extended periods of stress. In contrast to many temperate species, plasma lactate concentrations did not consistently increase in response to stress, suggesting that the stress response in spiny damselfish is not strongly characterized by anaerobiosis. © 2004 The Fisheries Society of the British Isles.

History

Publication title

Journal of Fish Biology

Volume

64

Pagination

133-145

ISSN

0022-1112

Department/School

Institute for Marine and Antarctic Studies

Publisher

Blackwell Publishing Ltd

Place of publication

Oxford, England

Repository Status

  • Restricted

Socio-economic Objectives

Fisheries - aquaculture not elsewhere classified

Usage metrics

    University Of Tasmania

    Categories

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC