Muscle bioenergetics of two emblematic Mediterranean fish species: Sardina pilchardus and Sparus aurata - Archive ouverte HAL Access content directly
Journal Articles Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology Year : 2019

Muscle bioenergetics of two emblematic Mediterranean fish species: Sardina pilchardus and Sparus aurata

(1, 2) , (1, 2) , (3) , (3) , (1, 2) , (4) , (3) , (3) , (3)
1
2
3
4

Abstract

We investigated links between swimming behavior and muscle bioenergetics in two emblematic Mediterranean fish species that have very different ecologies and activity levels. European sardines Sardina pilchardus are pe- lagic, they swim aerobically, school constantly and have high muscle fat content. Gilthead seabream Sparus aurata are bentho-pelagic, they show discontinuous spontaneous swimming patterns and store less fat in their muscle. Estimating the proportion of red and white muscle phenotypes, sardine exhibited a larger proportion of red muscle (~10% of the body mass) compared to gilthead seabream (~5% of the body mass). We firstly studied red and white muscle fiber bioenergetics, using high-resolution respirometers, showing a 4-fold higher oxidation capacity for red compared to white muscle. Secondly, we aimed to compare the red muscle ability to oxidize either lipids or carbohydrates. Sardine red muscle had a 3-fold higher oxidative capacity than gilthead seabream and a greater capacity to oxidize lipids. This study provides novel insights into physiological mechanisms un- derlying the different lifestyles of these highly-prized species.
Fichier principal
Vignette du fichier
S1095643319301461.pdf (772.03 Ko) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-02165039 , version 1 (25-10-2021)

Licence

Attribution - NonCommercial - CC BY 4.0

Identifiers

Cite

Loïc Teulier, Thoral Elisa, Quentin Queiros, David J Mckenzie, Damien Roussel, et al.. Muscle bioenergetics of two emblematic Mediterranean fish species: Sardina pilchardus and Sparus aurata. Comparative Biochemistry and Physiology - Part A: Molecular and Integrative Physiology, 2019, 235, pp.174-179. ⟨10.1016/j.cbpa.2019.06.008⟩. ⟨hal-02165039⟩
82 View
44 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More