秋季南沙群岛海域浮游纤毛虫群落与环境因子关系的初步研究  

Planktonic ciliate community and its relationship with environmental factors in southern South China Sea during autumn

作　　者：吴风霞[1] 黄洪辉[1,2] 谭烨辉[3] 齐占会[1] 

机构地区：[1]广东省渔业生态环境重点实验室//农业部南海渔业资源开发利用重点实验室∥中国水产科学研究院南海水产研究所,广东广州510300 [2]南海生物资源开发与利用协同创新中心,广东广州510300 [3]中国科学院南海海洋研究所,广东广州510301

出　　处：《中山大学学报（自然科学版）》2016年第5期89-95,共7页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：中央级公益性科研院所基本科研业务费专项资金资助项目(2014YD02);农业部财政重大资助项目(NFZX2013);广东省科技计划资助项目(2016A020222024)

摘　　要：根据2013年秋季（11月-12月）南沙群岛海域18个站位浮游纤毛虫和环境因子的调查资料,对浮游纤毛虫群落特征进行分析,并且探讨了影响浮游纤毛虫群落变动的主要环境因素。结果表明,共检出17种浮游纤毛虫,隶属于2目10属,砂壳目Tintinnida与寡毛目Oligotrichida。优势种包括三亚条纹虫Rhabdonella sanyahensis、锥形急游虫Strombidium conicum、杆状真铃虫Eutintinnus stramentus、酒瓶类铃虫Codonellopsis morchella、球形急游虫Strombidium globosaneum。浮游纤毛虫平均丰度为（36.5±3.8）ind./L（10-80 ind./L）,呈现斑块状分布,最大丰度出现在南沙群岛海域的中偏北部,其次在万安滩的东侧丰度值也较高,而在西北部、东北部和东南部的丰度值较低。浮游纤毛虫的水平分布可能与海洋环流有密切关系。此外,通过相关性分析和典范对应分析（canonical correspondence analysis,CCA）发现,南沙群岛海域浮游纤毛虫群落结构差异主要受水体营养盐水平与叶绿素a含量等环境因素的影响。Based on samples collected with CTD water sampler at a depth of 5 m from 18 sites in southern South China Sea during later autumn, 2013, species composition and abundance of planktonic ciliate and its relationship with the environment variables were investigated. A total 17 species belonging to 10 genera and two orders （Tintinnida and Oligotrichida） were identified. Among them, there were five dominant species （ dominance Y≥0. 02） , including Rhabdonella sanyahensis, Strombidium conicum, Eutintinnus stramentus, Codonellopsis morchella, Strombidium globosaneum. The mean abundance of ciliate was （36.5 ±3.8） ind. /L （10 -80 ind. /L）. Ciliates abundance distribution presents a patchy distribution, and the distribution of planktonic ciliates may be closely related to ocean circulation. Canonical correspondence analysis demonstrated that the nutrient level and Chlorophyll a concentration were the most important factors affecting the spatial pattern of planktonic ciliate communities in southern South China Sea.

关 键 词：浮游纤毛虫 南沙群岛 群落结构 环境因子 多元分析 

分 类 号：Q-9[生物学]