Abundance and spatial variability of invasive fishes related to environmental factors in a eutrophic Yunnan Plateau lake, Lake Dianchi, southwestern China
Ye, Shaowen1; Lin, Mingli1,2; Li, Lin1; Liu, Jiashou1; Song, Lirong1; Li, Zhongjie1
2015
Source PublicationENVIRONMENTAL BIOLOGY OF FISHES
Volume98Issue:1Pages:209-224
AbstractLake Dianchi is the largest freshwater lake on the Yunnan Plateau and the sixth largest one in China. In recent decades, a number of non-native fish species have been introduced into the lake intentionally or accidentally while human-accelerated eutrophication has been occurring. In this study, we provided a whole-lake assessment of species composition and abundance of the accidentally-introduced fishes, and described the spatial variability of invasive small fish community in relation to eight physicochemical environmental factors. Fish were sampled quantitatively at 30 sites throughout the lake with multiple mesh-sized gillnets in the autumn of 2008. A total of 2,050 individuals from seven non-native small fish species were captured. Thin sharpbelly Toxabramis swinhonis and piper halfbeak Hyporhamphus intermedius were recognized as dominant species, followed by barcheek goby Rhinogobius giurinus, topmouth gudgeon Pseudorasbora parva and redfin culter Culterichthys erythropterus, according to their abundance and occurrence. Principal component analysis (PCA) suggested that the fish community structure in the northern part was distinct from those in the middle and southern parts of the lake, corresponding to the increase of lake eutrophic level from south to north. Redundancy analysis (RDA) showed that redfin culter, piper halfbeak and thin sharpbelly were positively related to nutrient variables (total phosphorus, total nitrogen), while topmouth gudgeon and barcheek goby were associated with relatively higher secchi depth and lower nutrition level. Water depth seemed to have moderately negative influence on spatial distribution of all the fish species. Regression tree analysis was applied to visualize decision rules for the prediction of fish abundances (CPUE, ind/fishing pass/h) from key environment variables, and explained 51.5-69.0 % of the total variance of response values. The details of these findings are beneficial to understanding the establishment of invasive fish in degraded environment, and to developing suitable conservation strategies for the restoration and management of fish resources in Lake Dianchi as well as the other lakes of Yunnan Plateau.
SubtypeArticle
KeywordAccidentally-introduced Fishes Invasive Fishes Fish Community Structure Environmental Variables Multivariate Statistics Plateau Lake
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s10641-014-0252-9
Indexed BySCI
Language英语
WOS KeywordCOMMUNITY STRUCTURE ; BIOTIC INTEGRITY ; WATER-QUALITY ; YANGTZE-RIVER ; CALIFORNIA ; DIVERSITY ; PATTERNS ; GRADIENT ; BIODIVERSITY ; RESTORATION
WOS SubjectEcology ; Marine & Freshwater Biology
WOS IDWOS:000345625400020
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.idsse.ac.cn/handle/183446/1206
Collection深海科学研究部_深海生物学研究室_海洋哺乳动物与海洋生物声学研究组
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
Recommended Citation
GB/T 7714
Ye, Shaowen,Lin, Mingli,Li, Lin,et al. Abundance and spatial variability of invasive fishes related to environmental factors in a eutrophic Yunnan Plateau lake, Lake Dianchi, southwestern China[J]. ENVIRONMENTAL BIOLOGY OF FISHES,2015,98(1):209-224.
APA Ye, Shaowen,Lin, Mingli,Li, Lin,Liu, Jiashou,Song, Lirong,&Li, Zhongjie.(2015).Abundance and spatial variability of invasive fishes related to environmental factors in a eutrophic Yunnan Plateau lake, Lake Dianchi, southwestern China.ENVIRONMENTAL BIOLOGY OF FISHES,98(1),209-224.
MLA Ye, Shaowen,et al."Abundance and spatial variability of invasive fishes related to environmental factors in a eutrophic Yunnan Plateau lake, Lake Dianchi, southwestern China".ENVIRONMENTAL BIOLOGY OF FISHES 98.1(2015):209-224.
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