Connectivity of fish assemblages along the mangrove-seagrass-coral reef continuum in Wenchang, China
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Connectivity of fish assemblages along the mangrove-seagrasscoral reef continuum in Wenchang, China Jianguo Du1*, Meiling Xie2, 1, Yuyu Wang3, Zehao Chen1, 4, Wenhua Liu2, Jianji Liao1, Bin Chen1* 1 Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China 2 Marine Biology Institute, Shantou University, Shantou 515063, China 3 School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China 4 College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, China
Received 9 July 2019; accepted 30 September 2019 © Chinese Society for Oceanography and Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract
Understanding the connectivity of fish among different typical habitats is important for conducting ecosystembased management, particularly when designing marine protected areas (MPA) or setting MPA networks. To clarify of connectivity among mangrove, seagrass beds, and coral reef habitats in Wenchang, Hainan Province, China, the fish community structure was studied in wet and dry seasons of 2018. Gill nets were placed across the three habitat types, and the number of species, individuals, and body size of individual fish were recorded. In total, 3 815 individuals belonging to 154 species of 57 families were collected. The highest number of individuals and species was documented in mangroves (117 species, 2 623 individuals), followed by coral reefs (61 species, 438 individuals) and seagrass beds (46 species, 754 individuals). The similarity tests revealed highly significant differences among the three habitats. Approximately 23.4% species used two habitats and 11.0% species used three habitats. A significant difference (p
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