文摘
Guanshan National Nature Reserve (GNNR) is located in the middle reach of the Jiuling Mountain Range in the southern China and the first national nature reserve within Jiangxi Province. The fish fauna of mountain streams in the GNNR was investigated from September 2006 to August 2007. A total of 379 fish were collected and classified into two families and seven species. Acrossocheilus parallens [relative abundance (RA) 44.3 % ] was the most abundant fish species. Subdominant species were Onychostoma barbata (RA, 20.3 % ), Zacco platypus (RA, 14.2 % ) and Opsariichthys bidens (RA, 12.4 % ).A greater number of species (7 vs. 2) and individuals (295 vs. 84) were collected from the West Stream compared to the East Stream. Among the seven fish species collected in the GNNR, Acrossocheilus parallens, Onychostoma barbata and Vanmanenia stenosoma are endemic to the Chinese mountain streams. This study suggests that mountain streams in the nation reserves including GNNR are very important for freshwater fish diversity and conservation in Jiangxi Province.
