The acute humoral adrenergic stress response in fish: facts and fiction

The acute humoral adrenergic stress response in fish: facts and fiction The goal of this review is to discuss and clarify some of the issues currently being debated regarding the acute humoral adrenergic stress response in fish. The afferent limb of the response, consisting of catecholamine secretion into the circulation, occurs under conditions of extreme physiological impairment. During mild or moderate stress, however, circulating catecholamine levels generally do not change and thus are unlikely to play a role in the mediation of physiological/metabolic responses at such times. The mechanisms leading to catecholamine secretion during severe stress involve the classical sympathetic pre-ganglionic neuronal cholinergic pathway in addition to a multitude of non-cholinergic pathways of neuronal and humoral origin. With respect to the efferent limb of the acute stress response, there is considerable controversy surrounding the importance of circulating catecholamines on influencing physiological function. For example, the control of ventilation in fishes may be less dependent on circulating catecholamines than previously thought. On the other hand, the levels of catecholamines achieved in the circulation of trout during severe stress are indeed sufficient to markedly influence red blood cell and cardiovascular function. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Aquaculture Elsevier

The acute humoral adrenergic stress response in fish: facts and fiction

Aquaculture, Volume 177 (1) – Jul 1, 1999

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Publisher
Elsevier
Copyright
Copyright © 1999 Elsevier Science B.V.
ISSN
0044-8486
D.O.I.
10.1016/S0044-8486(99)00092-7
Publisher site
See Article on Publisher Site

Abstract

The goal of this review is to discuss and clarify some of the issues currently being debated regarding the acute humoral adrenergic stress response in fish. The afferent limb of the response, consisting of catecholamine secretion into the circulation, occurs under conditions of extreme physiological impairment. During mild or moderate stress, however, circulating catecholamine levels generally do not change and thus are unlikely to play a role in the mediation of physiological/metabolic responses at such times. The mechanisms leading to catecholamine secretion during severe stress involve the classical sympathetic pre-ganglionic neuronal cholinergic pathway in addition to a multitude of non-cholinergic pathways of neuronal and humoral origin. With respect to the efferent limb of the acute stress response, there is considerable controversy surrounding the importance of circulating catecholamines on influencing physiological function. For example, the control of ventilation in fishes may be less dependent on circulating catecholamines than previously thought. On the other hand, the levels of catecholamines achieved in the circulation of trout during severe stress are indeed sufficient to markedly influence red blood cell and cardiovascular function.

Journal

AquacultureElsevier

Published: Jul 1, 1999

References

  • Cholinergic control of catecholamine release in the eel
    Al-Kharrat, H.; Weiss, U.; Tran, Q.; Nibbio, B.; Scholz, S.; Epple, A.
  • Angiotensins stimulate catecholamine release from the chromaffin tissue of the rainbow trout
    Bernier, N.J.; Perry, S.F.
  • Role of the atrial natriuretic peptide for adrenal regulation in the teleost fish Cyprinus carpio
    Kloas, W.; Reinecke, M.; Hanke, W.
  • Membrane transport and control of hemoglobin–oxygen affinity in nucleated erythrocytes
    Nikinmaa, M.
  • Correlation between catecholamine release and degree of acidotic stress in trout
    Tang, Y.; Boutilier, R.G.

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