{"refrec":{"BRefID":287797,"RR":"<b>Wu, X.; Xiao, S.; Yu, Z.</b> (2013). Mitochondrial DNA and morphological identification of <i>Crassostrea zhanjiangensis</i> sp. nov. (Bivalvia: Ostreidae): a new species in Zhanjiang, China. <i>Aquat. Living Resour. 26(4)</i>: 273-280. <a href=\"https://dx.doi.org/10.1051/alr/2013065\" target=\"_blank\">https://dx.doi.org/10.1051/alr/2013065</a>","BEntID":279822,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Aquat. Living Resour. 26(4)</i>: 273-280. <a href=\"https://dx.doi.org/10.1051/alr/2013065\" target=\"_blank\">https://dx.doi.org/10.1051/alr/2013065</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Wu, X.; Xiao, S.; Yu, Z.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Wu, X. <i>et al.</i>","Englishabstract":"Cupped oysters (Ostreidae, genus <i>Crassostrea</i>) occupy nearshore marine and estuarine habitats worldwide, providing many ecosystem goods and services as well as being a commercially important group of bivalves. In this study, the species identification of an “adulterant” oyster with small body size, which is often misidentified as a “young individual” of other sympatric species, including <i>C. sikamea</i> and <i>C. hongkongensis</i>, was determined for the first time, based on molecular markers (partial mitochondrial <i>cox1</i> and <i>rrnL</i> genes), phylogenetic analysis, and morphometric approaches. This novel species, <i>C. zhanjiangensis</i>, commonly known as the “cat ear oyster” in Guandu (a famous estuarine oyster farming region of Zhanjiang, Guangdong Province, China), appears to potentially influence the efficiency of <i>C. hongkongensis</i> spat collection due to niche competition on spat collection devices. Phylogenetic analyses confirm its status as the most basal taxon of the Indo-Pacific <i>Crassostrea</i>. A comparative study of the shell characteristics of <i>C. zhanjiangensis</i>, and other <i>Crassostrea</i> species revealed several distinctive morphological traits, including a generally smaller body size, a deeply cupped left valve, and a right valve that is convex in adults but flat in young individuals. Other distinctive features of the new species include life cycle traits that are unique compared with the sympatric <i>C. hongkongensis</i> and <i>C. sikamea</i> species, such as a higher growth rate in the fast growth phase after settlement, followed by a significantly slower growth rate and mass mortality during subsequent life stages. This study provides the basic information necessary for further ecological and population genetic studies on this new species.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Mitochondrial DNA and morphological identification of <i>Crassostrea zhanjiangensis</i> sp. nov. 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