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| 2014年春季黑潮与邻近海域甲藻组成及其对水团的指示作用 |
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岑竞仪1,2, 欧林坚1,2, 李思1,2, 张华1,2, 王建艳3, 吕颂辉1,2
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1.暨南大学生命科学技术学院 广州 510632;2.水体富营养化与赤潮防治广东普通高校重点实验室 广州 510632;3.北京自然博物馆 北京 100050
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| 摘要: |
| 我国东部海域受近岸流、台湾暖流和黑潮的影响，不同水团间环境因子差异较大，甲藻作为初级生产者主要受环境影响，研究分析不同水团浮游甲藻群落组成及分布情况具有重要的生态意义。2014年5-6月，本研究对台湾以东黑潮主流径及东海200m等深线内陆架区进行采样调查，分析测站浮游甲藻的群落结构组成。研究结果表明，网采样品共鉴定出浮游甲藻17属81种，甲藻丰度范围为（0.45-1207.86）×103cell/m3。根据聚类分析结果，将海区浮游甲藻划分为3个群落类型，分别为受沿岸水团影响的群落Ⅰ、受台湾暖流水团影响的群落Ⅱ和黑潮水团影响的群落Ⅲ。不同水团间甲藻群落结构具有一定差异性，其中甲藻丰度变化趋势为沿岸水团 > 台湾暖流水团 > 黑潮水团，沿岸水团甲藻主要以广温广盐种为主，台湾暖流水团甲藻以广温高盐种为主，黑潮水团甲藻以高温高盐种为主。 |
| 关键词: 甲藻群落 黑潮 指示种 |
| DOI：10.11693/hyhz20170400098 |
| 分类号: |
| 基金项目:中国科学院战略性先导科技专项，XDA11020103号；国家重点研发计划，2017YFC1404301号；国家自然基金，U1301235号，41606175号；北京市博士后科研活动经费资助项目，2016ZZ-85号；广东省海洋推广专项，A201501D08号；广东省科技计划项目，2016A030303012号。 |
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| THE SPECIES COMPOSITION OF DINOFLAGELLATE AND ITS ROLE OF INDICATION TO KUROSHIO AND ADJACENT WATERS IN SPRING 2014 |
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CEN Jing-Yi1,2, OU Lin-Jian1,2, LI Si1,2, ZHANG Hua1,2, WANG Jian-Yan3, LÜ Song-Hui1,2
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1.College of Life Science and Technology, Jinan University, Guangzhou 510632, China;2.Key Laboratory of Aquatic Eutrophication and Control of Harmful Algae Blooms of Guangdong Higher Education Institutes, Guangzhou 510632, China;3.Department of Science Research, Beijing Museum of Natural History, Beijing 100050, China
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| Abstract: |
| The East China Sea is affected by coastal current, Taiwan Warm Current and Kuroshio, and the environmental factors are different among its water masses. As a primary producer, dinoflagellates are sensitive to variation in the environment. Understanding the species composition of dinoflagellate is ecologically important. We conducted a survey in the main body of Kuroshio off eastern Taiwan Island on East China Sea shelf within 200 m in depth from May to June 2014. The results show that a total of 17 genera and 81 species of dinoflagellates were identified from the netz-samplers, and the abundance was from 0.45×103 to 1207.86×103cells/m3. In the cluster diagram, the phytoplankton dinoflagellates could be divided to three communities, including Group Ⅰ that is coastal current affected, Group Ⅱ in the Taiwan Warm Current (TWCW), and Group Ⅲ in the Kuroshio. The dinoflagellates grouping reveals that the coastal water mass ranked the first place in dinoflagellate diversity, followed by TWCW and Kuroshio in turn. In addition, the species composition of dinoflagellate was different from each other in ecological type in these water masses. |
| Key words: dinoflagellate community Kuroshio indicator species |