Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), P. O. Box 175, (B7602HSA), Mar del Plata, Buenos Aires, Argentina.
J Fish Biol. 2009 Jan;74(1):235-49. doi: 10.1111/j.1095-8649.2008.02136.x.
The ontogeny of the developmental stages of the hake Merluccius hubbsi is described. Fish larvae and post-transitional juveniles were collected in the Nor-Patagonian area from 1989 to 2004. The opening of the mouth and the pigmentation of the eyes are coincident with yolk resorption, finishing the yolk-sac stage. This species presents pigmentation on the head, trunk and tail typical of gadiform larvae. Pectoral fin development is completed during the transformation stage. The post-transitional juvenile stage begins when the fin-ray complements are complete and squamation begins. The fins become fully formed in the following sequence: pelvic fins, first dorsal fin, second dorsal and anal fins together, caudal fin and pectoral fins. The caudal complex is totally developed in larvae of 22.0-23.0 mm standard lengths (L(S)) and all vertebral elements are first observed in larvae of 8.5 mm L(S). The rate of development of M. hubbsi observed in this study could be faster than the rates reported for other species of Merluccius by different authors.
描述了智利无须鳕 Merluccius hubbsi 发育阶段的个体发生。1989 年至 2004 年，在北巴塔哥尼亚地区收集了幼鱼和过渡后幼鱼。口的张开和眼睛的色素沉着与卵黄吸收同时发生，完成卵黄囊阶段。该物种头部、躯干和尾巴的色素沉着是典型的无须鳕幼虫特征。胸鳍的发育在变态阶段完成。当鳍条补充完整且开始鳞片形成时，过渡后幼鱼阶段开始。鳍的形成顺序如下：腹鳍、第一背鳍、第二背鳍和臀鳍一起、尾鳍和胸鳍。22.0-23.0 毫米标准体长（L(S)）的幼鱼具有完全发育的尾复合体，所有的脊椎元素首先在 8.5 毫米 L(S)的幼鱼中观察到。本研究中观察到的 M. hubbsi 的发育速度可能比其他作者报道的其他 Merluccius 种的速度更快。
