Oxygen uptake, heart rate and activities of locomotor muscles during a critical swimming speed protocol in the gilthead sea bream Sparus aurata

Type Article
Date 2021-03
Language English
Author(s) Hachim Mouniboudine1, Rouyer Tristan2, Dutto GilbertORCID3, Kerzerho Vincent4, Bernard Serge4, Bourjea JeromeORCID2, McKenzie David1
Affiliation(s) 1 : Marbec Université Montpellier, CNRS, Ifremer, IRD Montpellier, France
2 : Marbec Université Montpellier, Ifremer, CNRS, IRD Sète, France
3 : Ifremer, Laboratoire SEA, Chemin de Maguelonne Palavas‐Les‐Flots, France
4 : LIRMM Université Montpellier, CNRS Montpellier, France
Source Journal Of Fish Biology (0022-1112) (Wiley), 2021-03 , Vol. 98 , N. 3 , P. 886-890
DOI 10.1111/jfb.14621
WOS© Times Cited 6
Keyword(s) exercise performance, fish, heart rate, Sparus aurata, muscle, respirometry
Abstract

Oxygen uptake, heart rate, and contraction frequencies of slow oxidative (SO) and fast glycolytic (FG) muscle, were measured simultaneously in gilthead seabream Sparus aurata submitted to stepwise increases in current speed in a swimming respirometer. Variation in oxygen uptake was closely related to variation in heart rate, over initial steps these rose in concert with an increase in contraction frequency of SO muscle. There was an asymptote in oxygen uptake and heart rate at high speeds, that reflected a transition from exclusive use of aerobic SO muscle to a combination of SO and anaerobic FG muscle, and which preceded fatigue.

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Hachim Mouniboudine, Rouyer Tristan, Dutto Gilbert, Kerzerho Vincent, Bernard Serge, Bourjea Jerome, McKenzie David (2021). Oxygen uptake, heart rate and activities of locomotor muscles during a critical swimming speed protocol in the gilthead sea bream Sparus aurata. Journal Of Fish Biology, 98(3), 886-890. Publisher's official version : https://doi.org/10.1111/jfb.14621 , Open Access version : https://archimer.ifremer.fr/doc/00660/77180/