胶州湾毛颚类生态学研究  

THE ECOLOGY OF CHAETOGNATHS IN JIAOZHOU BAY

作　　者：王倩[1,2] 孙松[3] 霍元子[4] 杨波[3] 

机构地区：[1]中国科学院海洋研究所海洋生态与环境科学重点实验室,青岛266071 [2]中国科学院研究生院,北京100049 [3]中国科学院海洋研究所胶州湾海洋生态系统研究站,青岛266071 [4]上海海洋大学水产与生命学院,上海201306

出　　处：《海洋与湖沼》2010年第4期639-644,共6页Oceanologia Et Limnologia Sinica

基　　金：国家重点基础研究规划973项目;2006CB400606号;国家自然科学基金重点项目;40631008号

摘　　要：根据2006年9月—2007年8月胶州湾浅水Ⅰ型浮游生物网的调查资料,分析了胶州湾毛颚类的种类组成、数量分布、摄食、生物量、生产力情况。结果表明,本次调查共出现毛颚类3种:强壮箭虫(Sagitta crassa)、拿卡箭虫(Sagitta nagae)和百陶箭虫(Sagitta bedoti)。其中强壮箭虫全年出现,在数量上占有绝对优势,年平均密度达到45.3ind/m3;拿卡箭虫和百陶箭虫在秋、冬、春季出现,年平均密度分别为0.17ind/m3和0.35ind/m3。通过推算得到胶州湾毛颚类年平均生物量为107.92mg/m2,年平均生产力为1.47mgC/(m2·d),占浮游动物总生产力的11.6%。毛颚类对浮游动物生物量和生产力的摄食压力在冬季达到全年最大值,分别为5.71%和83.47%,在春季、夏季、秋季毛颚类对浮游动物生物量的摄食压力分别为0.67%、0.08%、6.48%,对生产力的摄食压力分别为27.00%、2.48%和48.88%。由此可见,在冬季毛颚类的摄食对浮游动物群落结构等可能会产生重要影响。The ecology of Chaetognaths was studied based on the monthly sampling data collected from September,2006 to August,2007 at 13 stations in the Jiaozhou Bay.Among the three species existing in the Jiaozhou Bay,Sagitta crassa was the dominant species,appearing all year around with its maximal abundance up to 45.3 ind/m3.The other two species were Sagitta nagae and Sagitta bedoti,appearing in autumn,winter and spring,and their abundance were 0.17 ind/m3 and 0.35 ind/m3,respectively.The average biomass of Chaetognaths in the Jiaozhou Bay was 107.92 mg/m2.The production was 1.47 mg C/（m2·d）,which accounted for 11.6% of the zooplankton production.The feeding pressures of Chaetognaths on zooplankton biomass and production reached 5.71% and 83.47% in winter.In spring,summer and autumn,the feeding pressure of Chaetognaths on zooplankton biomass were 0.67%,0.08%,and 6.48%.The feeding pressures of Chaetognaths on zooplankton production were 27.00%、2.48% and 48.88%.The feeding of Chaetognaths had a significant impact on the community structure of zooplankton in winter.

关 键 词：箭虫 密度 生物量 生产力 摄食 胶州湾 

分 类 号：Q518.4[生物学—生物化学]