Fish community structure in Zitong Core Area in Qiandao Lake National Aquatic Genetic Resources Conservation Area
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Received:August 22, 2018  Revised:December 18, 2018
DOI:10.12024/jsou.20180802383
Key Words: Qiandao Lake  fish resource  community structure  dominance  biodiversity
Author NameAffiliationE-mail
HAO Yabin Zhejiang Institute of Freshwater Fisheries, Huzhou 313001, Zhejiang, China
Key Laboratory of Healthy Freshwater Aquaculture, Ministry of Agriculture and Rural Affairs, Huzhou 313001, Zhejiang, China
Zhejiang Research Center of East China Sea Fishery Research Institute, Huzhou 313001, Zhejiang, China
Key Laboratory of Freshwater Aquaculture Genetic and Breeding of Zhejiang Province, Huzhou 313001, Zhejiang, China 
 
LIU Jindian Zhejiang Institute of Freshwater Fisheries, Huzhou 313001, Zhejiang, China
Key Laboratory of Healthy Freshwater Aquaculture, Ministry of Agriculture and Rural Affairs, Huzhou 313001, Zhejiang, China
Zhejiang Research Center of East China Sea Fishery Research Institute, Huzhou 313001, Zhejiang, China
Key Laboratory of Freshwater Aquaculture Genetic and Breeding of Zhejiang Province, Huzhou 313001, Zhejiang, China 
 
GUO Aihuan Zhejiang Institute of Freshwater Fisheries, Huzhou 313001, Zhejiang, China
Key Laboratory of Healthy Freshwater Aquaculture, Ministry of Agriculture and Rural Affairs, Huzhou 313001, Zhejiang, China
Zhejiang Research Center of East China Sea Fishery Research Institute, Huzhou 313001, Zhejiang, China
Key Laboratory of Freshwater Aquaculture Genetic and Breeding of Zhejiang Province, Huzhou 313001, Zhejiang, China 
 
ZHANG Aiju Zhejiang Institute of Freshwater Fisheries, Huzhou 313001, Zhejiang, China
Key Laboratory of Healthy Freshwater Aquaculture, Ministry of Agriculture and Rural Affairs, Huzhou 313001, Zhejiang, China
Zhejiang Research Center of East China Sea Fishery Research Institute, Huzhou 313001, Zhejiang, China
Key Laboratory of Freshwater Aquaculture Genetic and Breeding of Zhejiang Province, Huzhou 313001, Zhejiang, China 
 
YUAN Julin Zhejiang Institute of Freshwater Fisheries, Huzhou 313001, Zhejiang, China
Key Laboratory of Healthy Freshwater Aquaculture, Ministry of Agriculture and Rural Affairs, Huzhou 313001, Zhejiang, China
Zhejiang Research Center of East China Sea Fishery Research Institute, Huzhou 313001, Zhejiang, China
Key Laboratory of Freshwater Aquaculture Genetic and Breeding of Zhejiang Province, Huzhou 313001, Zhejiang, China 
 
LIAN Qingping Zhejiang Institute of Freshwater Fisheries, Huzhou 313001, Zhejiang, China
Key Laboratory of Healthy Freshwater Aquaculture, Ministry of Agriculture and Rural Affairs, Huzhou 313001, Zhejiang, China
Zhejiang Research Center of East China Sea Fishery Research Institute, Huzhou 313001, Zhejiang, China
Key Laboratory of Freshwater Aquaculture Genetic and Breeding of Zhejiang Province, Huzhou 313001, Zhejiang, China 
 
GU Zhimin Zhejiang Institute of Freshwater Fisheries, Huzhou 313001, Zhejiang, China
Key Laboratory of Healthy Freshwater Aquaculture, Ministry of Agriculture and Rural Affairs, Huzhou 313001, Zhejiang, China
Zhejiang Research Center of East China Sea Fishery Research Institute, Huzhou 313001, Zhejiang, China
Key Laboratory of Freshwater Aquaculture Genetic and Breeding of Zhejiang Province, Huzhou 313001, Zhejiang, China 
guzhimin2006@163.com 
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Abstract:
      A sampling survey was conducted on the fish resources in Zitong core area from March 2016 to November 2017, and the fish species composition,ecological type,dominant species, community diversity index, community structure, ABC curve were analyzed. A total of 43 species were collected, which belonged to 4 orders, 8 families and 30 genera, and Cyprinidae had the largest number of species, which constituted 65.12% of the total species number. The captured fish were mainly composed of middle uplayers, omnivorous and sedentary species. The dominant species were Xenocypris davidi, Pseudolaubuca sinensis and Aristichthys nobilis. Margalef diversity index, Simpson diversity index, Shannon-Wiener diversity index and Pielou diversity ranged from 3.17 to 5.01, from 0.68 to 0.89, from 1.79 to 2.55, and from 0.61 to 0.84, respectively.The seasonal variation of fish community structure was significantly different, and in most cases it was moderately disturbed. The results of the study will not only help to understand the status of fish communities and resources in the Qiandao Lake conservation area, but also provide reference data for the construction of water conservancy projects to influence the fish community structure.