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首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >Ontogenetic Differentiation Of Swimming Performance In Gilthead Seabream (sparus Aurata, Linnaeus 1758) During Metamorphosis
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Ontogenetic Differentiation Of Swimming Performance In Gilthead Seabream (sparus Aurata, Linnaeus 1758) During Metamorphosis

机译：变形过程中金头鲷（Sparus Aurata，Linnaeus 1758）游泳行为的个体发育分化

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摘要

The critical swimming speed (U_(crit)) of gilthead seabream (Sparus aurata, Linnaeus 1875) was studied in two ontogenetic phases, early (13.7-18.7 mm total length, TL) and late metamorphosis (20.4-34.3 mm TL, after the full development of fin meristics and during squamation ontogeny), under four exercise temperatures (15,20, 25 and 28 ℃). Both the exercise temperature and the ontogenetic stage had a significant effect on the relative U_(crit) (RU_(crit)) of S. aurata, with the fish of early metamorphosis phase (E group) presenting significantly higher RU_(crit) than those of the late metamorphosis stage (I. group). This ontogenetic shift in swimming performance was accompanied by significant ontogenetic shifts of body shape and of muscle anatomy. Compared to the L group, S. aurata of the E group were characterized by a streamline body shape and significantly higher relative contribution of the slow-red muscle to the cross-sectional area of the body (31.0±1.3% vs 12.0 ± 1.2% in the L group).
机译：在两个个体发育阶段，研究了金头鲷（Sparus aurata，Linnaeus 1875）的临界游泳速度（U_（crit）），两个阶段分别是早期（总长13.7-18.7 mm TL）和后期变态（20.4-34.3 mm TL）。在四个运动温度（15、20、25和28℃）下充分发展了鳍状肌和在鳞状上皮发生期间。运动温度和个体发育阶段对金黄色葡萄球菌的相对U_（crit）（RU_（crit））都有显着影响，早期变态阶段（E组）的鱼的RU_（crit）明显高于那些。晚期变态阶段（I.组）。游泳表现的这种自体变化伴随着身体形状和肌肉解剖学的显着自体变化。与L组相比，E组的金黄色葡萄球菌具有流线型的体形和慢红色肌肉对身体横截面积的相对较高的贡献（31.0±1.3％对12.0±1.2％在L组中）。

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