2009年夏季北部湾浮游纤毛虫的丰度和生物量  

Abundance and biomass of planktonic ciliates in the Beibu Gulf during summer 2009

作　　者：于莹[1,2] 张武昌[1] 蔡昱明[3] 丰美萍[1,2] 李海波[1,2] 肖天[1] 

机构地区：[1]中国科学院海洋研究所海洋生态与环境科学重点实验室,山东青岛266071 [2]中国科学院大学,北京100049 [3]国家海洋局第二海洋研究所国家海洋局海洋生态系统与生物地球化学重点实验室,浙江杭州310012

出　　处：《热带海洋学报》2014年第2期60-65,共6页Journal of Tropical Oceanography

基　　金：国家自然科学基金项目(41121064);国家重点基础研究发展计划项目(2014CB441504;2011CB409804)

摘　　要：报道了2009年夏季北部湾A、B两个断面浮游纤毛虫的丰度和生物量。纤毛虫的平均丰度为521±369个·L-1,平均生物量(以碳为单位)为0.63±0.54μg·L-1。表层纤毛虫丰度和生物量的水平分布格局基本一致,高值主要位于湾的北部近岸、西南部近岸及湾中部A5站。两个断面纤毛虫丰度和生物量的垂直分布特点不同,纤毛虫在A断面水体中的垂直分布较均匀,在B断面主要分布在15m层以浅。共鉴定出砂壳纤毛虫13属20种,其中较为优势的种类为原始筒壳虫Tintinnidium primitivum、薄壳真铃虫Eutintinnus tenuis、三亚条纹虫Rhabdonella sanyahensis、未定种砂壳纤毛虫和斯氏拟铃虫Tintinnopsis schotti,且表现出不同的水平分布和垂直分布规律。We investigated the abundance and biomass of planktonic ciliates along two intersecting transects （Transects A and B） in the Beibu Gulf during summer 2009. The average abundance of ciliates was 521±369 ind·L-1, the average biomass was 0.63±0.54 μg·L-1. Ciliate abundance and biomass in the surface layer were higher in the coastal waters and at Station A5 （located in the central gulf）. Ciliate abundance and biomass were uniformly distributed vertically in the water column along Transect A, while ciliates tended to accumulate in the upper 15 m along Transect B. Twenty tintinnid species of 13 genera were identified. The most dominant species were Tintinnidium primitivum, Eutintinnus tenuis, Rhabdonella sanyahensis, tintinnid sp., and Tintinnopsis schotti, and they exhibited distinct patterns along the two transects.

关 键 词：浮游纤毛虫 丰度 生物量 北部湾 

分 类 号：P735[天文地球—海洋生物学]