The influence of sex, parasitism, and ontogeny on the physiological response of European eels (Anguilla Anguilla) to an abiotic stressor

Migration of adult European eels (Anguilla anguilla) from freshwater feeding grounds to oceanic spawning grounds is an energetically demanding process and is accompanied by dramatic physiological and behavioral changes. Humans have altered the aquatic environment (e.g., dams) and made an inherently...

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Bibliographic Details
Published in:Physiological and Biochemical Zoology
Main Authors: Silva, A.T. (Ana T.), Midwood, J.D. (Jonathan D.), Aarestrup, K. (Kim), Pottinger, T.G. (Tom G.), Madsen, S.S. (Steffen S.), Cooke, S.J. (Steven)
Format: Article in Journal/Newspaper
Language:English
Published: 2018
Subjects:
Anguillicola crassus
Cortisol
Glucose
Na+/K+-ATPase activity
Silver eel
Stress response
Yellow eel
Anguilla anguilla
Online Access:https://ir.library.carleton.ca/pub/20527
https://doi.org/10.1086/698689
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Summary:Migration of adult European eels (Anguilla anguilla) from freshwater feeding grounds to oceanic spawning grounds is an energetically demanding process and is accompanied by dramatic physiological and behavioral changes. Humans have altered the aquatic environment (e.g., dams) and made an inherently challenging migration even more difficult; human activity is regarded as the primary driver of the collapse in eel populations. The neuroendocrine stress response is central in coping with these challenging conditions, yet little is known about how various biotic factors such as sex, parasites, and ontogeny influence (singly and via interactions) the stress response of eels. In this study, mixed-effects and linear models were used to quantify the influence of sex, parasitism (Anguill

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