Spatial distribution and introduction pathways of non-native freshwater fish species in China  

作　　者：Liuxin Qiao Chunlong Liu Guohuan Su Yuning Zhang Jiayuan Xie Min Zhang Jun Xu 

机构地区：[1]Fishery College,Huazhong Agricultural University,Wuhan,430070,China [2]Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture(CAS),Institute of Hydrobiology,Chinese Academy of Sciences,Wuhan,430072,China [3]Key Laboratory of Mariculture of Ministry of Education,Fishery College,Ocean University of China,Qingdao,266001,China [4]Institute of Biology,Freie Universit€at Berlin,Berlin,14195,Germany

出　　处：《Water Biology and Security》2024年第4期36-43,共8页水生生物与安全（英文）

基　　金：supported by the Key R&D Program of Jiangxi Province(Grant No.2023BBG70011);Key R&D Program of Jiangxi Province(Grant No.20203BBG72W007);Knowledge Innovation Program of Wuhan-Basic Research(Grant No.2022020801010141);the Jiangxi Province Finance Special-2023 Annual Comprehensive Support Projects for Intensifying the Battle for Clean Water(JXAEPS2023-001);supported by the research funding of Laboratory of Ecological Security and Biodiversity Conservation of Cities on the Yangtze River Delta,Shanghai Science and Technology Museum.

摘　　要：Non-native freshwater fish species are regarded as a key factor responsible for the degradation of freshwater ecosystems.Although research on China's non-native freshwater fish species has been conducted at the national scale,the spatial distribution and introduction pathways of these species in China remain unclear.To address this knowledge gap,this study compiled a dataset of non-native freshwater fish species across administrative regions in China.We first assessed the number of non-native freshwater fish species by taxonomy,geographical origin,introduction pathway,and province.There were 177 non-native freshwater fish species,belonging to 17 orders,48 families,and 118 genera.The orders Cypriniformes(33.3%),Perciformes(28.2%),Siluriformes(10.2%),and Salmoniformes(6.2%)accounted for the largest proportion of non-native freshwater fish species.Eighty-nine nonnative species were introduced from other countries or regions,mostly from North America(31 species;34.8%),Asia(20 species;22.5%),Africa(13 species;14.6%),Europe(11 species;12.4%),and South America(10 species;11.2%).Aquaculture was the most common introduction pathway.Non-native freshwater fish species were more widely distributed in southwest China.Our study showed that there were obvious differences in the number and composition of non-native freshwater fish species across various provinces in China.The variation in the number of non-native freshwater fish species across provinces in China was attributed to distinct geographical features,development of the aquaculture industry,and efforts to study non-native freshwater fish species.Therefore,comprehensive surveys and studies of non-native freshwater fish species are needed,which are of great importance for the management and control of non-native species invasions.

关 键 词：Alien species Translocated species Spatial distribution Biological invasion Aquatic ecosystem 

分 类 号：S93[农业科学—渔业资源]