Blood lactate loads of redthroat emperor Lethrinus miniatus associated with angling stress and exhaustive exercise

Currey, L.M., Heupel, M.R., Simpfendorfer, C.A., and Clark, T.D. (2013) Blood lactate loads of redthroat emperor Lethrinus miniatus associated with angling stress and exhaustive exercise. Journal of Fish Biology, 83 (5). pp. 1401-1406.

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Abstract

Baseline, post-angling and maximum attainable blood lactate concentrations were measured for the fishery species redthroat emperor Lethrinus miniatus to gain insight into the condition of fish released following c. 30 s angling and <45 s air exposure. Mean ± s.d. baseline blood lactate was 1·5 ± 0·6 mmol l⁻¹, which increased and plateaued around 6 mmol l⁻¹ at 15–30 min post-angling. These values were significantly lower than those obtained from fish maximally exhausted with a prolonged chase and air exposure protocol following capture (10·9 ± 1·8 mmol l⁻¹), suggesting that L. miniatus is not maximally exhausted during standard angling practices.

Item ID: 29823
Item Type: Article (Short Note)
ISSN: 1095-8649
Keywords: catch-and-release; fish; fisheries; post-release; stress physiology
Funders: Australian Research Council (ARC), AIMS@JCU, James Cook University (JCU)
Date Deposited: 17 Oct 2013 01:55
FoR Codes: 06 BIOLOGICAL SCIENCES > 0606 Physiology > 060603 Animal Physiology Systems @ 50%
05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and Management > 050209 Natural Resource Management @ 25%
06 BIOLOGICAL SCIENCES > 0608 Zoology > 060801 Animal Behaviour @ 25%
SEO Codes: 83 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 8302 Fisheries - Wild Caught > 830204 Wild Caught Fin Fish (excl. Tuna) @ 100%
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