海洋科学2016，Vol.40Issue(7)：91-99,9.DOI:10.11759/hykx20150825001
冬季大鹏澳海域微表层浮游植物色素特征的日变化研究
Daily changes of phytoplankton community structures revealed by pigment signatures in the sea surface microlayer at Daya Bay in winter
摘要
Abstract
The aim of this study was to understand the characteristics of size-fractioned pigments and differences in the phytoplankton community between the sea surface microlayer (SML) and subsurface water (SSW). Water samples from the SML and SSW were collected in the early morning, at midday, and in the late afternoon on December 3, 2013, in the Dapeng Cove of Daya Bay. The samples were then filtered into three differently sized fractions (micro, nano, and pico), and phytopigments were determined individually by high-performance liquid chromatography. Seventeen phytopigments were detected, with the most abundant being Fucoxanthin (Fuco)and chlorophyll a (Chla). The average concentration of Chl a at the SML was 0.797μg/L, higher than that for SSW (0.714μg/L), and there was no significant difference between the SML and SSW values (P<0.05). The highest Chl a concentration was found in the morning and then in the late afternoon, and the lowest was found at midday. The phytoplankton in the SML was dominated by micro-Chla, accounting for 80.7% of the total Chla concentration, followed by nano-Chla, (10.1%) and pico-Chla (9.2%). Therefore, the phytoplankton community in the SML was dominated by diatoms, and the proportion of other species showed similar low values. The proportion of haptophytes, prasinophytes, and cyanobacteria in the SML was higher than that in the SSW, suggesting that the phytoplankton community structure in the SML had a trend of miniaturization.关键词
微表层/浮游植物/光合色素/粒级结构/大鹏澳Key words
Sea surface microlayer/Phytoplankton/Photosynthetic pigments/Size structure/Dapeng Cove分类
生物科学引用本文复制引用
陈飞羽,江涛,张玲,王小冬,马长江,王朝晖..冬季大鹏澳海域微表层浮游植物色素特征的日变化研究[J].海洋科学,2016,40(7):91-99,9.基金项目
国家自然科学基金项目(41276154) （41276154）
中国水产科学研究院黄海水产研究所级基本科研业务费项目(20603022015002) （20603022015002）
农业部南海渔业资源开发利用重点实验室开放基金(LSF2014-04) （LSF2014-04）
农业部东海与远洋渔业资源开发利用重点实验室开放基金(2014K04)@@@@National Natural Science Foundation of China, No.41276154 （2014K04）
Basal Research foundation of Yellow Sea Fisheries Research Institute, No.20603022015002 （）
Open Foundation of Agriculture Department South China Sea Fishery Resources Development and Utilization Key Labora-tory , No. LSF2014-04 （）
Open Foundation of Agriculture Department East China Sea and Ocean Fishery Resources Development and Utilization Key Laboratory, No.2014K04 （）
