生物安全学报（中英文）2024，Vol.33Issue(3)：260-266,7.DOI:10.3969/j.issn.2095-1787.2024.03.008
惠州西湖外来鱼类入侵与鱼类群落状况研究
Study on alien fish invasion and fish community status in Huizhou West Lake
摘要
Abstract
[Aim]To understand the species composition and alien fish invasion of Huizhou West Lake,a fish resource survey was conducted in February 2023.[Method]The Jaccard similarity index,similarity analysis,and non-metric multidimensional scaling(NMDS)were utilized to analyze the species composition,abundance differences,distribution patterns,community structure,and community similarity of alien fish in Huizhou West Lake.[Result]A total of 21 fish species were captured in this survey.Sixteen native fish species were found,including Cyprinus carpio,Carassius auratus,and Hypophthalmichthys harmandi.Five alien fish species were recorded,namely Pterygoplichthys pardalis,Tilapia zillii,Oreochromis niloticus,Sarotherodon galilaeus,and Labeo rohita.Alien fish species accounted for 45.36%of the total catch weight and 44.18%of the total catch tail.Additionally,Pterygoplichthys pardalis and Tilapia zillii were observed in relatively high proportions in terms of weight and quantity among the five alien fish species,suggesting the establishment of a significant population scale.The similarity analysis results showed that the average Jaccard similarity index value of Huizhou West Lake is 0.62,which is the"similarity"level,indicating that the fish communities are relatively similar at various stations.The clustering analysis results showed that at a similarity level of 78.73%,the fish community of Huizhou West Lake can be divided into four groups;however,statistically significant differences did not exist be-tween these four groups(P>0.05).[Conclusion]Overall,the fish communities at each site of Huizhou West Lake are relatively similar.Huizhou West Lake has been invaded by Pterygoplichthys pardalis and Tilapia zillii,which appeared at each analyzed site.Therefore,corresponding prevention and control measures are urgently required.关键词
外来鱼类/空间分布/群落相似性/豹纹翼甲鲇/齐氏罗非鱼Key words
alien fish/spatial distribution/community similarity/Pterygoplichthys pardalis/Tilapia zillii引用本文复制引用
余梵冬,韦慧,徐猛,房苗,舒璐,汪学杰,胡隐昌,顾党恩..惠州西湖外来鱼类入侵与鱼类群落状况研究[J].生物安全学报（中英文）,2024,33(3):260-266,7.基金项目
国家大宗淡水鱼产业技术体系(CARS-45) （CARS-45）
广州市科技计划(202102020817、202201010257) （202102020817、202201010257）
广东省现代农业产业共性关键技术研发创新团队建设项目(2023KJ134) （2023KJ134）
中国水产科学研究院基本科研业务费(2020TD17) （2020TD17）
中国水产科学院所级基本科研业务费(2024SJRC11) （2024SJRC11）
