Survey on diversity of fish species in Hang river, the tributary of upper Nan river, northern Thailand | การสำรวจความหลากชนิดของปลาในแม่น้ำแหง แม่น้ำสาขาของแม่น้ำน่านตอนบน
2009
Amornchai Lothongkham(Rajamangala University of Technology Lanna, Nan (Thailand). Faculty of Science and Agricultural Technology. Department of Animals Science and Fisheries) | Jeamjit Changsarn(Rajamangala University of Technology Lanna, Nan (Thailand). Faculty of Science and Agricultural Technology. Department of Animals Science and Fisheries) | Aekapong Chaichorfa(Rajamangala University of Technology Lanna, Nan (Thailand). Faculty of Science and Agricultural Technology. Department of Animals Science and Fisheries)
Survey of fish fauna in the Hang River, a tributary of the Upper Nan River (Nan Province), northern Thailand was conducted from June 2005 to May 2006 from 10 sampling stations followed the longitudinal gradient. Nine orders, 19 families, 40 genera, 45 species of fishes were collected. The most dominant order is Cypriniformes (27 species (60 percent)), followed by Perciformes (9 species (20 percent)) and Siluriformes (3 species (6.7 percent)) The most dominant family is Cyprinidae (19 species (42.2 percent)), followed by Balitoridae (7 species (15.5 percent)) and Cobitiidae (2 species (4.4 percent)). Only one species, Hemimyzon nanensis, is an endemic species to the basin. Two alien species, Poecillia reticulata and Oreochromis niloticus were collected.
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