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Zoological Research
Kunming Institute of Zoology, Chinese Academy of Sciences
ISSN: 2095-8137
Vol. 27, No. 5, 2006, pp. 505-512
Bioline Code: zr06072
Full paper language: Chinese
Document type: Research Article
Document available free of charge

Zoological Research, Vol. 27, No. 5, 2006, pp. 505-512

 en Fish Biodiversity and Its Distributional Characters During Winter in the Dulong River Basin, Yunnan, China
CHEN Zi-ming, PAN Xiao-fu, KONG De-ping, YANG Jun-xing

Abstract

The authors investigated the fish resources in the Dulong River, Irrawaddy basin from October to November, 2004. Twenty six sampling sites were established and 883 fish specimens were collected in different altitudes and habitats. The analysis revealed that: (1) the fish biomass in both the main stream and its tributaries descend when the altitude ascends; (2) fish species diversity descends when the altitude ascends. The Shannon-Wiener index and the species evenness in the main stream are higher than those in the tributaries; (3) except for Schizothorax (Schizothorax) dulongensis and Oreoglanis macropterus check for this species in other resources , the occurrences of all the other five species are significantly related to the changes in altitude.

Keywords
Dulong River; Fishes; Biodiversity; Distribution character

 
© Copyright 2006 Kunming Institute of Zoology, the Chinese Academy of Sciences
Alternative site location: http://www.zoores.ac.cn/

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