| GAO Chunlei,FU Mingzhu,SONG Hongjun,WANG Lei,WEI Qinsheng,SUN Ping,LIU Lin,ZHANG Xuelei. 2018. Phytoplankton pigment pattern in the subsurface chlorophyll maximum in the South Java coastal upwelling system, Indonesia. Acta Oceanologica Sinica, 37(12):97－106 |
| Phytoplankton pigment pattern in the subsurface chlorophyll maximum in the South Java coastal upwelling system, Indonesia |
| 印尼爪哇上升流海域次表层叶绿素最大值层的浮游植物色素分布特征 |
| Received:January 04, 2018 |
| DOI：10.1007/s13131-018-1342-x |
| Key words:Java upwelling phytoplankton pigment HPLC subsurface chlorophyll maximum CHEMTAX size structure |
| 中文关键词: 爪哇上升流 浮游植物色素 HPLC 次表层叶绿素最大值层 CHEXTAX 粒级结构 |
| 基金项目:The Global Change and Air-Sea Interaction Program under contract Nos GASI-02-IND-ST-Sspr and GASI-03-01-03-03; the National Natural Science Foundation of China under contract No. 41506185; the Special Funds for Basic Ocean Science Research of the First Institute of Oceanography, State Oceanic Administration of China under contract Nos 2013T04 and 2012T08. |
| Author Name | Affiliation | E-mail | | GAO Chunlei | First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
Laboratory of Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology(Qingdao), Qingdao 266237, China
Key Laboratory of Science and Engineering for Marine Ecological Environment, Ministry of Natural Resources, Qingdao 266061, China | | | FU Mingzhu | First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
Laboratory of Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology(Qingdao), Qingdao 266237, China
Key Laboratory of Science and Engineering for Marine Ecological Environment, Ministry of Natural Resources, Qingdao 266061, China | fumingzhu@fio.org.cn | | SONG Hongjun | First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
Laboratory of Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology(Qingdao), Qingdao 266237, China
Key Laboratory of Science and Engineering for Marine Ecological Environment, Ministry of Natural Resources, Qingdao 266061, China | | | WANG Lei | Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China | | | WEI Qinsheng | First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
Laboratory of Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology(Qingdao), Qingdao 266237, China
Key Laboratory of Science and Engineering for Marine Ecological Environment, Ministry of Natural Resources, Qingdao 266061, China | | | SUN Ping | First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
Laboratory of Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology(Qingdao), Qingdao 266237, China
Key Laboratory of Science and Engineering for Marine Ecological Environment, Ministry of Natural Resources, Qingdao 266061, China | | | LIU Lin | First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China | | | ZHANG Xuelei | First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
Laboratory of Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology(Qingdao), Qingdao 266237, China
Key Laboratory of Science and Engineering for Marine Ecological Environment, Ministry of Natural Resources, Qingdao 266061, China | |
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| Abstract: |
| Upwelling occurs on the coast of Java between June and October, forced by local alongshore winds associated with the southeasterly monsoon. This causes variations in phytoplankton community composition in the upwelling zone compared with the surrounding offshore area. Based on pigments analysis with subsequent calculations of group contributions to total chlorophyll a (Chl a) using CHEMTAX, we studied the distribution and composition of phytoplankton assemblages in the subsurface chlorophyll maximum along the south coast of Java and the influence of upwelling. Nineteen phytoplankton pigments were identified using high-performance liquid chromatography, and CHEMTAX analysis associated these to ten major phytoplankton groups. The phytoplankton community in the coastal area influenced by upwelling was characterized by high Chl a and fucoxanthin concentrations, indicating the dominance of diatoms. In contrast, in the offshore area, the Chl a and fucoxanthin concentrations declined to very low levels and the community was dominated by haptophytes represented by 19'-Hexanoyloxyfucoxanthin. Accordingly, microphytoplankton was found to be the major size class in the coastal area influenced by upwelling, while nanophytoplankton was most abundant in the offshore area. Low concentrations of other accessory pigments indicated less contribution from dinoflagellates, prasinophytes, chlorophytes and cryptophytes. Photo-pigment indices revealed that photosynthetic carotenoids (PSCs) were the largest component of the pigment pool, exceeding the proportion of Chl a, with the average PSCTP up to 0.62. These distribution trends can mainly be explained by phytoplankton adaption strategies to upwelling and subsurface conditions by changing species composition and adjusting the pigment pool. |
| 中文摘要: |
| 在东南季风的影响下，每年的6月至10月，在印尼爪哇岛南岸会产生上升流。上升流的存在很可能使该海域浮游植物群落结构与外海区域产生明显差异。本文基于浮游植物色素的高效液相色谱分析技术（HPLC）以及CHEMTAX的化学分类计算法，对2013年秋季爪哇岛南岸上升流及其邻近海域次表层叶绿素最大值层的浮游植物群落结构进行了研究。研究结果显示，HPLC技术共鉴定出19种浮游植物色素，通过CHEMTAX分析将其归类为10种主要的浮游植物类群。在受上升流影响的近岸区域具有较高浓度的叶绿素a和岩藻黄素，表明该海域由硅藻占主导。而在外海区域，叶绿素a和岩藻黄素浓度降低至较低水平，浮游植物群落主要由定鞭藻占主导。与此相对应，小型浮游植物是上升流区域主要的粒径组成，而微型浮游植物是外海区域主要的粒径组成。其他的辅助色素浓度均较低，说明甲藻、青绿藻、绿藻和隐藻等对研究海域浮游植物类群贡献较小。光合色素指数计算表明光合类胡萝卜素类（PSCs）是研究海域浮游植物色素最重要的组成部分，PSCTP的平均值高达0.62。这些分布趋势反映了浮游植物群落通过改变物种组成和色素组成对上升流和次表层环境所做出的适应策略。 |
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