海洋渔业2025，Vol.47Issue(3)：333-342,10.
长江口及邻近海域百陶箭虫和海龙箭虫的时空共存关系
Spatial and temporal co-existence of Sagitta bedoti and S.nagae in the Yangtze River Estuary and adjacent waters
摘要
Abstract
To understand the spatio-temporal co-existence of Sagitta bedoti and S.nagae from the perspective of community ecology,abundance data of S.bedoti and S.nagae with biological-environmental factors in the Yangtze River Estuary and adjacent waters were sampled in December 2019(autumn)and May 2020(spring).Based on generalized additive models(GAMs),the relationships between species and environmental factors were analyzed,and the co-existence patterns between S.bedoti and S.nagae were tested by the null model.The results indicated that in autumn S.bedoti was significantly correlated with salinity and temperature(P＜0.05)and S.nagae was significantly correlated with water depth and temperature(P＜0.05).In spring,both S.bedoti and S.nagae were significantly correlated with salinity and temperature(P＜0.05).Null models showed that in autumn the observed Pianka index between S.bedoti and S.nagae was higher than the simulated value but not significantly different(P＞0.05),suggesting a pattern of dispersal limitation driving the co-existence mechanism.In spring the observed Pianka index between S.bedoti and S.nagae was statistically higher than the simulated value,suggesting the important role of environmental filtering driving the species co-existence.关键词
浮游动物/百陶箭虫/海龙箭虫/长江口/共存关系Key words
zooplankton/Sagitta bedoti/Sagitta nagae/Yangtze River Estuary/co-existence分类
生物科学引用本文复制引用
杨杰青,陈敏,丁玲,郑磊夫,晁敏,周进,陈渊戈,史赟荣..长江口及邻近海域百陶箭虫和海龙箭虫的时空共存关系[J].海洋渔业,2025,47(3):333-342,10.基金项目
中国水产科学研究院东海渔业水域生态环境监测与修复创新团队项目(2020TD14) （2020TD14）
中国长江三峡集团有限公司科研项目(201903173) （201903173）
