应用生态学报2017，Vol.28Issue(5)：1699-1706,8.DOI:10.13287/j.1001-9332.201705.028
温州南部沿岸海域主要鱼类的生态位及种间联结性
Niche and interspecific association of the dominant fish in the south coastal waters of Wenzhou, China
摘要
Abstract
The studies about the niche and interspecific association in China were mainly focused on the plants,birds and marine animals,and seldom on fish.Based on the fishery resources survey in spring (May) and autumn (September) in 2015,the associations among major fish species in south coastal waters of Wenzhou were investigated.The methods including niche breadth,niche overlap,variance ratio (VR),x2-test,association coefficient (AC),percentage of co-occurrence (PC) and point correlation coefficients (Φ) were used.The results showed that 47 fish species were identified,including 9 orders,27 families and 41 genera.Four species were dominant species and 9 were important species,which together accounted for 17％.The niche breadth cluster analysis demonstrated two clearly identifiable ecological niches.The first one referred to wide niche that included Harpodon nehereus,Collichthys lucidus,Engraulis japonicas,Pampus echinogaster,Argyrosomus argentatus,Polynemus sextarius,Decapterus maruadsi and Trichiurus haumela,and the second one was narrow niche that included Muraenesox cinereus,Amblychaeturichthys hexanema,Cunoglossus robustus,Pseudosciaena polyactis and Ilisha elongate.The niche overlap value of the main fish was 0-0.90,indicating that there was difference in the resource utilization among the species.The ecological niche widths of C.robustus and M.cinereus were narrow,and the overlap values were high.This indicated that there was competition between these two species.The VR analysis revealed significant positive correlation among the main fish species.In view of the advantages of Φ value,which could reduce the impact of the analysis results of x2-test,AC and PC to the interspecific association,the Φ value method was selected in this study,and the association of 63 couples were positive.Both the interspecific association and ecological niche had different degrees of correlation with the stability of community structure and community succession.关键词
生态位/生态位分化/种间联结/鱼类Key words
niche/niche differentiation/interspecific association/fish引用本文复制引用
董静瑞,水柏年,胡成业,水玉跃,杜肖,田阔..温州南部沿岸海域主要鱼类的生态位及种间联结性[J].应用生态学报,2017,28(5):1699-1706,8.基金项目
本文由国家自然科学基金项目(41006075)、浙江省软科学研究重点项目(2015C25018)和海洋科学浙江省重中之重学科项目资助 This work was supported by the National Natural Science Foundation of China (41006075),the Key Project of Soft Science Research of Zhejiang (2015C25018),and the Marine Science in the Most Important Subjects of Zhejiang Province. （41006075）
