摘要
根据2009年5、8、10月莱州湾近岸海域的调查数据,对浮游植物的群落结构进行了初步研究。共鉴定浮游植物3门30属58种,主要为温带近岸性和广布性种。其中,硅藻门占总种数的87.9%,以角毛藻属(Chaetoceros)和圆筛藻属(Coscinodiscus)的种类最多;甲藻门占总种数的10.3%,以角藻属(Ceratium)为主。金藻门只有小等刺硅鞭藻(Dictyocha fibula)一种。群落优势种组成存在季节性演替的现象。细胞数量上,硅藻占浮游植物总量的99.8%。经Shannon-Winner指数、Margalef指数、均匀度指数分析,该海域浮游植物多样性和种丰富度总体较好,群落结构较为稳定。本年度调查共发现赤潮生物38种,建议在夏季加强海域赤潮防范。
Based on the survey of Laizhou Bay in 2009,a preliminary study on the phytoplankton community was carried out.The results showed that 58 phytoplankton species were identified altogether,belonging to 3 phyla with 30 genera,in which 87.9% were Bacillariophyta and 10.3% were Dinophyta.In Bacillariophyta,Chaetoceros,and Coscinodiscus were the dominant groups in terms of species number while Ceratium was in Dinophyta.In Chrysophta,only Dictyocha fibula was identified.It was also found that the dominant species changed with different seasons.The average abundance of phytoplankton was 6623.22×104cells/m3,in which Bacillariophyta accounted for 99.8%.Three indices were used to analyze the characteristics of community structure of phytoplankton in the surveyed area.The results showed that the diversity and abundance indices were well and the community structure was stable.During the survey,38 red tide species were identified,and therefore routine monitoring in summer should be strengthened.
出处
《海洋湖沼通报》
CSCD
北大核心
2011年第3期97-104,共8页
Transactions of Oceanology and Limnology
基金
国家海洋局北海分局2010年海洋科技项目(2010B07)资助
关键词
浮游植物
群落结构
多样性
莱州湾
phytoplankton
community structure
diversity
Laizhou Bay
