Ichthyofauna in Mangrove Estuaries of the Okinawa , Miyako , Ishigaki and Iriomote Islands during August from 2000 to 2002
Ichthyofauna in Mangrove Estuaries of the Okinawa , Miyako , Ishigaki and Iriomote Islands during August from 2000 to 2002
复制标题
2000年至2002年8月期间冲绳、宫古岛、石垣岛和西表岛红树林河口的鱼类动物群
DOI:
--
复制
发表时间:
2012
期刊:
影响因子:
--
通讯作者:
Shimose
中科院分区:
文献类型:
--
作者:
Katsunori;Tachihara;Kohei Nakao;K. Tokunaga;Yuko Tsuhako;Mikumi;Takada;Tumid;Shimose
The temporal and spatial patterns of species composition and the abundance of fish in the mangrove estuaries of the Gesashi River on Okinawa Island, the Shimajiri River on Miyako Island, the Nagura River on Ishigaki Island and the Urauchi River on Iriomote Island were studied during August, from 2000 to 2002. Fish samples were collected by cast nets, hand nets, and angling. In total, 5,747 individuals representing 13 orders, 47 families, 104 genera and 155 species were recorded from four mangrove estuaries. The number of species was found to increase from north to south. In terms of individual numbers, several species represented dominant key species, which comprised over 50 % of the total number of individuals collected in each estuary. In terms of the number of species per family, the most dominant family was the Gobiidae in each river and accounted for 25.5 % of the total number of species that appeared in the Gesashi River, 30.2 % in the Shimajiri River, 40.7 % in the Nagura River, and 38.1 % in the Urauchi River. The diversity of fish species found in the Okinawan mangrove estuaries was considered to be similar to or greater than those in other tropical regions.