First record of Pantropical spotted dolphins Stenella attenuata in the Yellow Sea,China |
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| Authors: | Fuxing Wu Xianyan Wang Qiuxia Zhang Xing Miao Ting Zhang Qian Zhu |
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| Institution: | 1. Ocean College, Shandong University, Weihai, 264209, China
2. Third Institute of Oceanography, State Oceanic Administration, Xiamen, 361005, China
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| Abstract: | On October 1, 2009, sixteen dolphins were obtained from fishermen by incidental catching in the Yellow Sea, China. As the dolphins' skin color was ambiguous, morphological parameters were measured, and mitochondrial DNA cytochrome b(Cyt b) gene sequence was studied to identify the species. Morphological characteristics were consistent with Pantropical spotted dolphins, S tenella attenuata. Furthermore, a partial mitochondrial DNA cytochrome b(Cyt b) gene sequence as long as 328-bp was studied by extracting genomic DNA from the skins, and six haplotypes were detected in the sixteen dolphins. By comparing homologous sequences available in Gen Bank(www.ncbi.nlm.nih.gov), all the six haplotypes had maximal genetic similarity with Pantropical spotted dolphin. Eight species of cetacean(whales and dolphins) are now recognised in the Yellow Sea. To the best of our knowledge, this is the first record of Pantropical spotted dolphins from this region. Despite this species being listed as a Grade II National Key Protected Animal since 1988, little is known of its biology in Chinese waters. We recommend remedial research be undertaken to ensure appropriate management. |
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