冬夏季雷州半岛附近海域微微型光合浮游生物的类群变化及环境影响  

Distribution of autotrophic picoplankton and its effect factors in the waters around Leizhou Peninsula in summer and winter

作　　者：钟瑜[1,2,3] 黄良民[1,2] 黄小平[1,2] 邱大俊[1,2] 宋星宇[1,2] 刘华雪[1,2,4] 

机构地区：[1]中国科学院海洋生物资源可持续利用重点实验室,南海海洋研究所,广州510301 [2]中国科学院热带海洋环境动力学重点实验室,南海海洋研究所,广州510301 [3]中国科学院大亚湾海洋生物综合实验站,深圳518121 [4]中国科学院研究生院,北京100049

出　　处：《生态学报》2009年第6期3000-3008,共9页Acta Ecologica Sinica

基　　金：中国科学院创新方向资助项目(KZCX2-YW-213);国家自然科学基金资助项目(U0633007,40576052,40531006);广东省908专项生物生态和海洋化学资助项目

摘　　要：2006年夏季和冬季对雷州半岛附近海域微微型光合浮游生物的类群数量与分布进行分析研究。结果表明:该海区微微型光合浮游生物的主要类群为聚球藻(Synechococcus)和微微型真核生物(pico-eukaryotes),二者在夏季的数量变化分别为(5.74±5.0)×104cell/ml和(2.33±1.82)×103cell/ml,冬季分别为(1.57±2.17)×103cell/ml和(4.17±4.40)×103cell/ml。聚球藻的丰度夏季高于冬季,高值区位于雷州湾海区;而微微型光合真核生物的丰度冬季高于夏季,冬季高值出现在雷州湾内D7站表层。雷州半岛西部海区微微型光合浮游生物的丰度夏、冬季变化比雷州湾附近海区明显,营养盐、温度、潮汐等是制约其数量变化的主要因子。Abundance of Synechococcus and picoeukaryotes around Leizhou Peninsula were estimated using flow cytometry in summer and winter of 2006. In the summer, the abundances of Synechococcus and picoeukaryotes were （5.74±5.0）×10^4cell/ml and（1.81±1.16）×10^3cell/ml respectively; and in the winter they were （1.57±2.17）×10^3cell/ml and （4.17±4.40）×10^3cell/ml.Synechococcus were much more abundant in the summer than in the winter, and more abundant in Leizhou Bay than in other areas. In contrast, picoekuaryotes were more abundant in the winter than in the summer in most locations, and reached their highest abundance in the surface waters of Leizhou Bay in winter. Seasonal variation of autotrophic picoplankton population was higher in the waters of west than east of Leizhou Peninsula. Nutrients,temperature,and tide were key factors controlled Synechococcus and picoeukaryotes population variations around Leizhou Peninsula.

关 键 词：聚球藻 微微型真核浮游生物 类群变化 雷州半岛附近海区 环境影响 

分 类 号：Q178.53[生物学—水生生物学]