海南岛铺前湾浮游植物群落结构初步研究
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摘要
在显微镜分析的基础上,对海南岛铺前湾2010年的浮游植物群落结构展开了初步研究。结果表明:夏季,铺前湾浮游植物共54种,优势种为尖刺拟菱形藻、中肋骨条藻等6种硅藻,平均生物密度为41.93×10~2ind./L,多样性指数和均匀度一般,丰富度偏低;冬季,铺前湾浮游植物共72种,优势种为曲壳藻、小环藻等5种硅藻,平均生物密度为4.31×10~2ind./L,多样性指数一般,均匀度偏低,丰富度较高。该海域浮游植物以广温近海种为主,群落结构以硅藻为主;冬季浮游植物种类较多,但丰度显著低于夏季。
With the microscope analysis of the plankton samples,which were sampled from Puqian Bay in 2010,apreliminary study on the community structure of phytoplankton was carried out.The results showed that,in summer,54 species were identified,dominant species were 6 diatom species,Pseudo-nitzschia pungens,Skeletonema costatum,Coscinodiscus radiatus,Bacillaria paxillifera,Cyrosigma sp.,and Synedra ulna;the average density was 41.93×10~2 ind./L;Shannon-Weaver index and evenness index were both within moderate level,and species richness was rel-atively low.In winter,72 species were identified,dominant species were 5 diatom species,Achnanthes sp.,Cyclotella cryptica,C. radiatus,Thalassiothrix frauenfeldii,and S.costatum;the average density was 4.31×10~2 ind./L;Shannon-Weaver index was within moderate level,evenness index was relatively low,and species richness was relatively high.Phytoplankton in Puqian Bay were mainly eurythermic margin sea species,and the community structure was dominat-ed by the diatoms;there were more species in winter,but the abundance was significantly lower than its in summer.
With the microscope analysis of the plankton samples,which were sampled from Puqian Bay in 2010,apreliminary study on the community structure of phytoplankton was carried out.The results showed that,in summer,54 species were identified,dominant species were 6 diatom species,Pseudo-nitzschia pungens,Skeletonema costatum,Coscinodiscus radiatus,Bacillaria paxillifera,Cyrosigma sp.,and Synedra ulna;the average density was 41.93×10~2 ind./L;Shannon-Weaver index and evenness index were both within moderate level,and species richness was rel-atively low.In winter,72 species were identified,dominant species were 5 diatom species,Achnanthes sp.,Cyclotella cryptica,C. radiatus,Thalassiothrix frauenfeldii,and S.costatum;the average density was 4.31×10~2 ind./L;Shannon-Weaver index was within moderate level,evenness index was relatively low,and species richness was relatively high.Phytoplankton in Puqian Bay were mainly eurythermic margin sea species,and the community structure was dominat-ed by the diatoms;there were more species in winter,but the abundance was significantly lower than its in summer.
引文
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[2]Chihara M,Murano M.An Illustrated Guide to Marine Plankton in Japan[M].Tokyo:Tokai University Press,1997.
[3]Hoppenrath M,Elbr?chter M,Drebes G.Marine Phytoplankton.Selected Microphytoplankton Species from the North Sea around Helgoland and Sylt.E[M].Stuttgart:Schweizerbart Science Publishers,2009.
[4]Omura T,Iwataki M,Borja V M,et al.Marine Phytoplankton of the Western Pacific[M].Tokyo:Kouseisha Kouseikaku,2012.
[5]Shannon C E,Weaver W.The Mathematical Theory of Communication[M].Urbana L:University of Illinois Press,1949.
[6]Margalef R.Information theory in ecology[J].General Systems,1958,3:36-71.
[7]Pielou E C.The measurements of diversity in different types of biological collections[J].Journal of Theoretical Biology,1966,13:131-144.
[8]孙军,刘东艳,徐俊,等.1999年春季渤海中部及其邻近海域的网采浮游植物群落[J].生态学报,2004,24(9):2003-2016.
[9]孙军,刘东艳,魏皓,等.琉球群岛邻近海域浮游植物多样性的模糊综合评判[J].海洋与湖沼,2001,32(4):445-453.