Comparative morphology of the sagittal otolith in Serranus spp.
Comparative morphology of the sagittal otolith in Serranus spp.
复制标题
Serranus spp 矢状耳石的比较形态。
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
M. Lorente
中科院分区：
文献类型：
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作者：
V. Tuset;A. Lombarte;J. González;J. Pertusa;M. Lorente
本文研究了加那利群岛三种共生的Serranus属(S.atricauda、S.Cabrilla和S.Scriba)球状耳石的形态差异。虽然不同物种的耳石大体形态相似，但Scriba的不同之处在于其嘴在顶端有轻微的转弯和更多漏斗状的开口。浅水物种(S.Scriba)的耳石和沟区面积小于深水物种(S.Cabrilla和S.atricauda)。尖沟和开口的大小与物种的习性深度相关，其中最深的物种--美洲斑潜蝇的值最高。耳石轮廓形状指数随物种的大小(全长)而变化，并允许通过判别函数对物种进行区分。
Variations in the morphology of saccular otoliths (sagittae) among three sympatric species of the genus Serranus (S. atricauda, S. cabrilla and S. scriba) from the Canary Islands were investigated. Although the otolith gross morphology was similar among species, S. scriba was distinct in having a rostrum which had a slight turning at the tip and a more funnel-like ostium. The shallower water species (S. scriba) had otolith and sulcus areas which were smaller than the deeper water species (S. cabrilla and S. atricauda). The sulcus acusticus and ostium size were correlated with the habit depth of the species, with the highest values in the deepest species, S. cabrilla. The otolith outline shape indices changed with size (total length) of the species, and allowed the separation of the species by means of a discriminate function.