Systematics and identification of larvae and juveniles of the genus Sebastes

Systematics and identification of larvae and juveniles of the genus Sebastes
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Sebastes 属幼虫和幼虫的系统学和鉴定

DOI:
10.1007/978-94-011-3792-8_18
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发表时间:
1991
影响因子:
1.4
通讯作者:
A. W. Kendall
A. W. Kendall
中科院分区:
环境科学与生态学3区
文献类型:
--
作者:
A. W. Kendall

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回顾了有关塞巴斯特斯幼虫和幼虫的系统学和形态学的最新信息,以及该属许多物种之间的属内关系。尽管在对属进行分支分析后,某些亚属可能会保留下来,但其他亚属可能是由于相似的生态而具有趋同形态的物种的人工分组。鲫鱼与其他鲫鱼的关系以及鲫鱼与其他鱼类的关系尚未解决。在全世界 102 种塞巴斯虫中,69 种为前屈幼虫,35 种为后屈幼虫,65 种为中上层幼虫。每个阶段的形态特征都用于比较物种,按相似的外观对它们进行分组,然后将这些分组与现有的亚属进行比较。预屈幼虫的一些色素模式在某些亚属的物种之间相当一致,但在其他亚属的物种之间差异很大。根据色素、头刺和身体形状,后屈幼虫分为 11 个组。这些群体与组成物种的亚属分配并不紧密一致。根据中上层幼鱼的色素模式,有六个明显的群体,但这些群体的具体组成与幼体或亚属群体几乎没有相似之处。
Current information on systematics and morphology of larvae and juveniles ofSebastesis reviewed, as are intrageneric relationships among the many species of the genus. Although some subgenera may remain after a cladistic analysis of the genus, others are probably artificial groupings of species that have convergent morphologies because of similar ecology. The relationships ofSebastesto other scorpaeniform fishes as well as the relationships of scorpaeniforms to other fishes are not resolved. Of the 102 species ofSebastesworldwide, 69 species have been illustrated as preflexion larvae, 35 as postflexion larvae and 65 as pelagic juveniles. Morphological characters of each of these stages were used to compare species, group them by similar appearances and then compare these groupings with existing subgenera. Some pigment patterns of preflexion larvae were rather consistent among species within certain subgenera but quite variable among species in other subgenera. Postflexion larvae fell into 11 groups based on pigment, head spines and body shape. These groups were not closely aligned with the subgeneric assignments of the component species. On the basis of pigment patterns of pelagic juveniles, six groups were evident, but the specific composition of these groups bore little resemblance to either the larval or subgeneric groups.