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首页> 外文期刊>Journal of Ichthyology >Variation of Freckled Goatfish Upeneus tragula (Mullidae): Color Morphs off Hon Thom (Gulf of Thailand, South China Sea)
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Variation of Freckled Goatfish Upeneus tragula (Mullidae): Color Morphs off Hon Thom (Gulf of Thailand, South China Sea)

机译：Frecrled Goatfish Upeneneus Tragula（mullidae）的变异：Hon Thom（泰国海湾，南海）的颜色变形

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摘要

Two color morphs of freckled goatfish Upeneus tragula with different Vietnamese names and mainly black and red body coloration of fresh dead exemplars are found off Hon Thoom (Thom Island), the largest island of An Thoi Archipelago located to the south of Phu Quoc Island, Gulf of Thailand, South China Sea. The presence of the morphs may be connected with the occurrence of two sympatric stocks or with color variation within a single stock. To test these hypotheses, red color content on the body (based on digital analysis of images) and gonadal condition is compared in both morphs. Body coloration does not depend on the sex of the fish. The black morph differs from the red morph in a smaller body size (12.7 vs. 16.4 cm FL on average), and it is represented by mainly immature individuals of both sexes (mean gonadosomatic index of the females 0.5 vs. 2.0%). It is proposed that the change of body coloration is associated with sexual maturation, and it occurs in the ontogeny within a single stock.
机译：有不同越南名称的雀斑山羊属upeneus疾病的两种颜色变形和主要是黑色和红色身体着色的新鲜死亡的榜样，位于海湾河峡岛南部的Thoi群岛最大的岛屿（Thom Island）。泰国，南海。变形的存在可以随着两个SympaTric股票的发生或在单个库存内具有颜色变化而连接。为了测试这些假设，在体变体中比较身体上的红色含量（基于图像的数字分析）和性能。身体着色不依赖于鱼的性别。黑色的变形与较小的身体尺寸（平均12.7与16.4cm fl平均平均）的红色变形不同，并且它主要由两性的未成熟个体（平均雌性的雌性指数为0.5 vs.2.0％）表示。提出，身体着色的变化与性成熟有关，它发生在单一库存内的Ontogeny中。

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