Engaged in sample survey by 57 surveys with gill net, trawl net, trap net and pull net, the samples of 6 542 fish individuals were collected in Momoge National Nature Reserve during 2008-2010. The characteristics of the fish diversity in Momoge National Nature Reserve were analyzed. It was observed that there were 49 species/subspecies of 42 genus, 11 families, and 5 orders. Four species of these were introduced species while the others were indigenous, including 4 species peculiar and 5 vulnerable to China, and 8 of cold water. In the fauna composition, the order Cypriniformes included 32 species, the family Cyprinidae 29 species, and the subfamily Gobioninae 13 species. The fishes from fauna complex of the eastern plain and the north plain were 27 species, 33 species lived in the slow flow environment and locating in the freshwater, 37 species spawned in the grasses and the water, 28 species were the omnivores and the primary carnivores, and they were all relatively dominant in the fish community with the indigenous species. In distributional feature and zoogeographical division, the North Region, the Ningxia-Nei Monggol Platean Region and the East Region was 22 species, 5 species and 13 species in the Palaearctic Region, respectively, and the South Region was 5 species in the Oriental Region. The species abundance pattern of the fish community in Momoge National Nature Reserve was the lognormal distribution. The findings suggest that the relation of fish between the reserve and the Nenjiang River was closely, keeping the stability of the community structures in the Nenjiang River is important for upholding and developing the fish diversity in the reserve.
fish communityindigenous speciesfauna compositionspecies diversityMomoge National Nature Reserve
NETL
NSTL
万方数据
维普
