| Du Jianguo,Xie Meiling,Wang Yuyu,Chen Zehao,Liu Wenhua,Liao Jianji,Chen Bin. 2020. Connectivity of fish assemblages along the mangrove-seagrass-coral reef continuum in Wenchang, China. Acta Oceanologica Sinica, 39(8):43－52 |
| Connectivity of fish assemblages along the mangrove-seagrass-coral reef continuum in Wenchang, China |
| 中国文昌红树林-海草床-珊瑚礁连续生境的鱼类连通性 |
| Received:July 09, 2019 |
| DOI：10.1007/s13131-019-1490-7 |
| Key words:connectivity fish mangrove seagrass coral reef Wenchang northern South China Sea |
| 中文关键词: 连通性 鱼类 红树林 海草床 珊瑚礁 文昌 南海北部 |
| 基金项目:The National Natural Science Foundation of China under contract No. 41676096; the Natural Science Foundation of Fujian Province of China under contract No. 2017J01075; the Technology Foundation for Selected Overseas Chinese Scholar Project “Impacts of Climate Change on Biology and Economy in the East China Sea”; the National Key Research and Development Program of China under contract No. 2018YFC1406503; the China-ASEAN Maritime Cooperation Fund Project “Monitoring and Conservation of The Coastal Ecosystem in The South China Sea”. |
| Author Name | Affiliation | E-mail | | Du Jianguo | Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China | dujianguo@tio.org.cn | | Xie Meiling | Marine Biology Institute, Shantou University, Shantou 515063, China
Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China | | | Wang Yuyu | School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China | | | Chen Zehao | Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, China | | | Liu Wenhua | Marine Biology Institute, Shantou University, Shantou 515063, China | | | Liao Jianji | Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China | | | Chen Bin | Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China | chenbin@tio.org.cn |
|
| Hits: 2322 |
| Download times: 858 |
| Abstract: |
| Understanding the connectivity of fish among different typical habitats is important for conducting ecosystem-based 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<0.05) in habitat use among eight species (Mugil cephalus, Gerres oblongus, Siganus fuscescens, Terapon jarbua, Sillago maculata, Upeneus tragula, Lutjanus russellii, and Monacanthus chinensis) was detected, with a clear ontogenetic shift in habitat use from mangrove or seagrass beds to coral reefs. The similarity indices suggested that fish assemblages can be divided into three large groups namely coral, seagrass, and mangrove habitat types. This study demonstrated that connectivity exists between mangrove–seagrass–coral reef continuum in Wenchang area; therefore, we recommend that fish connectivity should be considered when designing MPAs or MPA network where possible. |
| 中文摘要: |
| 了解鱼类在不同典型生境之间的连通性对基于生态系统的管理非常重要，特别是在设计海洋保护地或建立保护地网络时。通过研究海南文昌海域2018年干季和湿季的鱼类群落结构，分析了该海域红树林-海草床-珊瑚礁连续生境之间的连通性。在上述三种生境采用流刺网采集样品，记录鱼类的种类、个体数量和个体大小。共采集鱼类2815尾，隶属57科154种。相似性指数分析表明，该海域鱼类可以分为珊瑚鱼类、海草床鱼类和红树林鱼类3个大的类群。其中红树林鱼类个体数和物种数最高（117种，2623尾），其次是珊瑚礁鱼类（61种，438尾），再次是海草床鱼类（46种，754尾）。相似性检验表明，三个生境的鱼类差异显著，约23.4%的物种使用2个生境，11%的物种使用3个生境。其中8种鱼类的生境利用存在显著差异，存在明显的从红树林或海草床到珊瑚礁的生物个体发育迁移现象，包括鲻（Mugil cephalus）、长圆银鲈（Gerres oblongus）、褐篮子鱼（Siganus fuscescens）、细鳞鯻（Terapon jarbua）、斑鱚（Sillago maculata）、黑斑绯鲤（Upeneus tragula）、勒氏笛鲷（Lutjanus russellii）和中华单角鲀（Monacanthus chinensis）。研究表明，在海南文昌红树林-海草床-珊瑚礁连续生境中存在明显的鱼类连通性；因此，建议在选划海洋保护地和建设保护地网络时应考虑生态连通性。 |
|
HTML
View Full Text
View/Add Comment Download reader |
| Close |
|
|
|
