Sinev Artem Y, Gu Yangliang, Han Bo-Ping
Biological Faculty, M.V. Lomonosov Moscow State University, Leninskie gory, Moscow 119991, Russia.; Email:
Department of Ecology and Institute of Hydrobiology, Jinan University, Guangzhou 510632, China; Email:
Zootaxa. 2015 Aug 25;4006(3):569-85. doi: 10.11646/zootaxa.4006.3.9.
The cladoceran fauna of Hainan Island (China) was investigated. Samples were collected in January 2013 and in April 2014 from over hundred water bodies, including large and small reservoirs, ponds and pools, rivers, streams, and paddy fields. There are no large natural lakes on the island. We found 53 species of Cladocera: 9 species of Sididae; 5 Daphniidae; 2 Moinidae; 2 Macrothricidae; 2 Ilyocryptidae; 3 Bosminidae; and 30 Chydoridae. Planktonic communities were dominated by Diaphanosoma dubium Manuilova, 1964, D. excisum Sars, 1885, D. sarsi Richard, 1894, Moina micrura Kurz, 1874 and Bosminopsis deitersi (Richard, 1895). Six Chydoridae species are first records for China. The fauna consists mostly of Oriental and Pantropical species, but, also includes non-tropical Palaearctic species and East Asian endemics. For these species, Hainan Island is the southernmost record. The number of species is rather small, compared to adjacent areas. This may reflect a low intensity of sampling, but more likely a lack of natural lakes. Communities in reservoirs suffer from water level fluctuations, and the absence of permanent macrophyte stands, a preferred habitat of littoral cladocera.
对中国海南岛的枝角类动物区系进行了调查。样本于2013年1月和2014年4月从一百多个水体中采集，包括大、小水库、池塘、河、溪流和稻田。该岛没有大型天然湖泊。我们发现了53种枝角类动物：9种仙达溞科；5种溞科；2种裸腹溞科；2种大眼溞科；2种隐尾溞科；3种薄皮溞科；以及30种盘肠溞科。浮游生物群落以1964年的曼氏透明溞、1885年的锯缘透明溞、1894年的萨斯透明溞、1874年的微型裸腹溞和1895年的德氏薄皮溞为主。六种盘肠溞科物种在中国属首次记录。该动物区系主要由东洋界和泛热带界的物种组成，但也包括非热带的古北界物种和东亚特有种。对于这些物种来说，海南岛是其最南端的记录地。与相邻地区相比，物种数量相当少。这可能反映出采样强度较低，但更可能是因为缺乏天然湖泊。水库中的群落受到水位波动的影响，并且没有永久性的大型植物群落，而大型植物群落是沿岸枝角类动物偏好的栖息地。
