长江口及邻近东海陆架区微型鞭毛虫的多样性初探

来源 :第五届全国海洋生态研讨会暨中国生态学学会海洋生态专业委员会2015年学术年会 | 被引量 : 0次 | 上传用户:lmh860628
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  于2013年春季(5月)、秋季(8月)和秋季(11月)开展了长江口及邻近东海陆架区微型鞭毛虫的多样性调查,样品经处理后,用Illumina Miseq系统对18S rDNA V4高变区进行高通量测序和序列分析,物种的丰富度和多样性分别用Chao 1指数和Shannon多样性指数表征.结果显示,调查海区微型鞭毛虫在春季、夏季和秋季都以囊泡虫类为主,其在微型鞭毛虫OTU中所占比例超过65%,囊泡虫中又以多甲藻和卵甲藻为主要优势种;异鞭类、原始色素体生物、隐藻和后鞭毛生物等在东海微型生物群落中所占比例均不超过10%;无法归类的物种所占比例为6.91%-23.51%.
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