Scale Surface Microstructure and Scale Size in Three Mugilid Fishes (Teleostei, Mugilidae) of Iran from Three Different Habitats

H. Esmaeili, R. Khaefi, G. Sayyadzadeh, M. S. Tahami, Benafsheh Parsi, A. Gholamifard
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引用次数: 13

Abstract

A substantial number of species within mugilid family has been recorded from marine, brackish and freshwater bodies of Iran. Descriptions of these species have been based mainly on morphological and anatomical data; however, the characters related to the fish scales have not up to now been intensively studied and employed for the identification of the fish species. The objective of this study is to test whether (i) scale surface morphology and microstructure, and (ii) scale size can be used to discriminate species. To achieve these objectives, scales of three species of the genus Liza from three different habitats, Liza abu (freshwater, Maharlu basin), Liza klunzingeri (sea, Persian Gulf) and Liza saliens (brackish water, Caspian Sea) have been studied using SEM images, scale measurements, and uni and multivariate statistics. It is opined that scale surface morphology and microstructure may help in distinguishing the species. In addition, scale size and J-indices, represent a valuable tool for species separation, which corroborates earlier studies for the use of these indices in fish taxonomy.
伊朗三种不同生境木鱼的鳞片表面微观结构和鳞片大小
在伊朗的海洋、咸淡水和淡水水体中记录了大量的马吉里科物种。对这些物种的描述主要基于形态学和解剖学数据;然而,与鱼鳞有关的性状至今尚未得到深入的研究和用于鱼种鉴定。本研究的目的是测试(i)尺度表面形貌和微观结构,以及(ii)尺度是否可以用来区分物种。为了实现这些目标,利用扫描电镜图像、尺度测量以及单变量和多变量统计研究了来自三个不同栖息地Liza abu(淡水,Maharlu盆地)、Liza klunzingeri(海洋,波斯湾)和Liza saliens(咸淡水,里海)的三种Liza属物种的尺度。认为鳞片表面形貌和微观结构有助于物种的鉴别。此外,鱼鳞大小和j指数是一种有价值的物种分离工具,这证实了早期研究中使用这些指数进行鱼类分类的结果。
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