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引用本文:于莹,张武昌,蔡昱明,丰美萍,李海波,肖天.冬季和夏季南海北部浮游纤毛虫的分布特点.海洋与湖沼,2014,45(4):839-847.
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冬季和夏季南海北部浮游纤毛虫的分布特点
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
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 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 杭州 310012
摘要:
本文报道2009 年冬季和夏季南海北部浮游纤毛虫丰度和生物量的水平分布和垂直分布特点。冬季和夏季纤毛虫的平均丰度分别为(486±484)ind/L 和(809±1008)ind/L; 平均生物量分别为(2.84±3.26)μg C/L 和(1.96±3.80)μg C/L。冬季和夏季纤毛虫丰度和生物量的水平分布特点一致, 呈现由近岸向远岸降低的趋势, 珠江口外断面的水体平均纤毛虫丰度和生物量均明显高于海南岛东部断面, 该趋势在夏季表现得更为突出。冬季和夏季纤毛虫丰度和生物量的垂直分布特点不同, 冬季纤毛虫丰度和生物量在水体的次表层较高; 夏季纤毛虫丰度和生物量总体上在表层或中层出现高值。夏季在珠江口外断面远岸150m 水深处有一个纤毛虫丰度和生物量的高值区, 这个现象在以往的研究中没有发现过。冬季砂壳纤毛虫很少检出, 夏季共鉴定出砂壳纤毛虫14 属22 种, 冬季和夏季砂壳纤毛虫丰度占纤毛虫丰度的比例分别为1.7%和22.6%。
关键词:  浮游纤毛虫  丰度  生物量  南海北部
DOI:10.11693/hyhz20130307001
分类号:
基金项目:国家重点基础研究发展计划,2014CB441504号;国家自然科学基金项目,U1406403号,90711006号,40876085号。
附件
DISTRIBUTION PATTERNS OF PLANKTONIC CILIATES IN THE NORTHERN SOUTH CHINA SEA IN WINTER AND SUMMER, 2009
YU Ying1,2, ZHANG Wu-Chang1, CAI Yu-Ming3, FENG Mei-Ping1,2, LI Hai-Bo1,2, XIAO Tian1
1.Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;2.University of Chinese Academy of Sciences, Beijing 100049, China;3.Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, SOA, Hangzhou 310012, China
Abstract:
We investigated the abundance and biomass of planktonic ciliates in the northern South China Sea in winter and summer, 2009. The average abundance of ciliates in the winter and summer were (486±484) and (809±1008) ind/L, respectively. The average biomass of ciliates in winter and summer were (2.84±3.26) and (1.96±3.80) μg C/L, respectively. The depth-weighted average ciliate abundance and biomass decreased from coastal areas to off-shore areas in both seasons, and were higher along Transects S1 than Transect S2. Ciliates tended to accumulate in the sub-surface layers in winter. Ciliate abundance and biomass were usually higher in the surface or middle layers in summer, although sometimes ciliates were located near the bottom layers in the off-shore stations. Tintinnids were rarely detected in winter, while 22 tintinnid species of 14 genera were identified in summer. Tintinnids occupied 1.7% and 22.6% of the total ciliate abundance in winter and summer, respectively.
Key words:  planktonic ciliate  abundance  biomass  northern South China Sea
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