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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41188

Title: Diversity and abundance of haptophytes in the East China Sea
Authors: Yun-Chi Lin
Chih-Ching Chung
Gwo-Ching Gong
Kuo-Ping Chiang
Contributors: 國立臺灣海洋大學:海洋環境化學與生態研究所
Keywords: 18S rRNA gene
Haptophyte
Phaeocystis
Date: 2014
Issue Date: 2017-02-10T01:06:13Z
Publisher: AQUATIC MICROBIAL ECOLOGY
Abstract: ABSTRACT: Haptophytes (Prymnesiophytes) are important members of eukaryotic phytoplankton and therefore influence carbon and sulfur cycles in the marine ecosystem. The objective of this study was to investigate the distribution and taxonomic composition of haptophytes in the East China Sea (ECS). Our sampling area covered the ECS continental shelf in the spring and summer of 2009. An abundance of haptophytes was revealed by fluorescent in situ hybridization with an 18S rRNA-specific probe. A haptophyte blooming event reaching 2.2 × 104 cells ml-1 was observed in the Yellow Sea Mixing Water in spring. Phylogenetic analysis of the 18S rRNA gene revealed that the majority of this bloom was composed of Phaeocystis sequences that affiliated with P. jahnii and P. cordata. In contrast, in summer the assemblage composition of haptophytes was dominated by Chrysochromulina, with a maximum abundance of 3.1 × 103 cells ml-1 occurring near the edge of the Changjiang Diluted Water. We also noted a relationship between larger size haptophytes and water eutrophication. The contribution of haptophytes to total nanoflagellate abundance at the ECS surface was 32% in spring and 12% in summer.
Relation: 72
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41188
Appears in Collections:[Institute of Marine Environment and Ecology] Periodical Articles

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