Abstract:
Xiamen Bay is a collection of estuary, mangroves and shallow sea wetland, and other typical ecosystems of high biodiversity. It has been reported that 28 species of coral live in Xiamen Bay excluding the genus
Carijoa. To understand the current status of
Carijoa in Xiamen Bay, we collected coral samples with diving surveys in the seas around Dabai Island, Xiaobai Island, Baiha Reef, Jiao Island, Shang Island, Huangcuo, Gulangyu Island, Huoshaoyu Island, Qing Island and Wu Island in Xiamen Bay in 2014-2021. Among the samples,25 of them were
Carijoa. Taxonomic study of the genus
Carijoa samples was performed with morphological identification and sequencing techniques of gene fragments [cytochrome C oxidase subunit I (COⅠ), NADH dehydrogenase second subunit (ND2)]. Results showed that all of the 25 specimens were
Carijoa riisei and they are the first record of
C. riisei in Xiamen Bay.
C. riisei was distributed in the seas around Xiaobai Island, Baiha Reef, Shang Island, Jiaoyu Island, Gulangyu Island and Huoshaoyu Island, while the species was not found at Dabai Island, Huangcuo, Qing Island and Wu Island stations. The results of this study not only enriched the records of coral species in Xiamen Bay but also added information of the world geographic distribution of
C. riisei, which can provide data support for the global study of biogeographic information of the genus
Carijoa.