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首页> 外文期刊>Journal of Ichthyology >Ultrastructure of the Sagitta Otolith in Different Body Size Groups of Climbing Perch Anabas testudineus (Anabantidae)
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Ultrastructure of the Sagitta Otolith in Different Body Size Groups of Climbing Perch Anabas testudineus (Anabantidae)

机译：超微结构在攀登栖息地山脉攀岩栖息地群中的不同体型群体（Anabantidae）

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摘要

The ultrastructural characteristics of the sagitta of the climbing perch, Anabas testudineus (Bloch, 1792) in different body size groups are described for the first time for the family Anabantidae using scanning electron microscopy. The sagitta is an ovate-shaped structure with a well-developed rostrum and anti-rostrum. The sulcus is S-shaped and has ostio-pseudocaudal type structure. The sulcus lacks collum. The ostium is a spoon-headed structure and is comprised of a triangular ostial colliculum. The excisura major is a prominent V-shaped structure and its width declines along with the growth of the total fish length. The cristae are prominent on both sides of the sulcus. The caudal colliculum is relatively well-developed in the smaller size groups than that of larger groups. The posterior end of otolith is blunt. The Kruskal-Wallis H test revealed that some sagitta features show significant differences in different body size groups of A. testudineus. The otolith weight is more closely related to the body length than the otolith length and width. Therefore, otolith weight can be used as an important predictor to evaluate the fish size.
机译：利用扫描电子显微镜首次描述了不同体型的攀缘鲈鱼（Anabas testudineus，Bloch，1792）矢状体的超微结构特征。矢状体为卵形结构，具有发达的主台和反主台。沟呈S形，具有口-假尾型结构。沟没有沟。开口为匙头结构，由三角形开口丘组成。大尾鱼是一种显著的V形结构，其宽度随着鱼体总长度的增长而减小。嵴在沟的两侧都很突出。与较大组相比，较小组的尾侧丘相对发达。耳石的后端是钝的。Kruskal-Wallis H检验显示，在不同体型组的testudineus中，一些矢状体特征表现出显著差异。耳石重量与体长的关系比耳石长度和宽度的关系更密切。因此，耳石重量可以作为评估鱼类大小的重要预测指标。

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