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Variability of phytoplankton absorption in the northern South China Sea: influence of the size structure and pigment composition of algal populations
  • ISSN号:0253-505X
  • 期刊名称:《海洋学报:英文版》
  • 时间:0
  • 分类:Q178.53[生物学—水生生物学;生物学—普通生物学]
  • 作者机构:[1]Key Laboratory of Tropical Marine Environmental Dynamics, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China, [2]Graduate School, Chinese Academy of Sciences, Beijing 100039, China
  • 相关基金:We wish to thank Liu Sheng and Zhang Jianlin for their help. This work was supported by the National Natural Science Foundation of China under contract Nos 40476019, 40576078 and 5210266 and the Knowledge Innovation Program of the Chinese Academy of Sciences under contract No. KZCX2 - YW - 215.
中文摘要:

从在 Zhujiang 河(ZR ) 里进行的三巡航的数据,广东(CWGD ) 的沿海的水和在 2003 和 2004 期间的北华南海(NSCS ) 为估计颜料作文的相对重要性并且在修改浮游植物的特定的吸收系数包装效果被检验。三个调查区域与统治 ZR 和 CWGD 水的大房间和统治 NSCS 区域的小房间在他们的浮游植物社区广泛地不同。在颜料有的尺寸结构和附件的变化很在叶绿素上完成浮游植物的一特定的吸收系数。尺寸索引分别地在 440 and675 nm 占了特定的吸收系数的大约 42% 变化和 33% 。用多重回归分析途径,为每件样品的颜料集中是计算的。除叶绿素以外的附件颜料主要穿蓝色衣服的 contribute toabsorption 吸收 - 到 - 为大约 44% , 43% 和 53% 的光谱和他们在为 ZR, CWGD 和 NSCS 的 440 nm 的全部的浮游植物吸收的一般水准上的吸收报道的绿区域区域。在附件颜料之中,光合的类胡萝卜素(著名 PSC ) 在 ZR 和 CWGD 水里起一个主导的作用,当在 NSCS 象 PSC 一样的非光合的类胡萝卜素(著名 PPC ) 有重要贡献时。因为在海藻的人口的尺寸结构和附件颜料的变化在学习区域贡献了特定的吸收系数的可变性,这些因素可以在未来简历明确地被考虑—导出叶绿素的光算法集中更精确地。

英文摘要:

Data from three cruises conducted in the Zhujiang River (ZR), coastal waters of Guangdong (CWGD) and the northern South China Sea (NSCS) during 2003 and 2004 were examined for assessing the relative importance of pigment composition and packaging effect in modifying the specific absorption coefficients of phytoplankton. The three survey regions differ widely in their phytoplankton community with large cells dominating the ZR and CWGD waters and small cells dominating the NSCS region. Variations in the size structure and the accessory pigments have much effect on the chlorophyll a-specific absorption coefficient of phytoplankton. The size index accounted for about 42% and 33% of the variation of the specific absorption coefficient at 440 and 675 nm, respectively. Using the multiple regression analysis approach, pigment concentrations for each sample were calculated. The accessory pigments other than chlorophyll a contribute to absorption mainly in the blue - to - green region of the spectrum and their absorptions account for about 44%, 43% and 53% on the average of the total phytoplankton absorption at 440 nm for the ZR, CWGD and NSCS regions. Among the accessory pigments, the photosynthetic carotenoids (noted PSC) play a dominant role in the ZR and CWGD waters, while in the NSCS the nonphotosynthetic carotenoids (noted PPG) as well as PSC have important contributions. Because the variations of both the size structure and accessory pigments in algal populations contributed to the variability of the specific absorption coefficient in the study regions, these factors may be considered explicitly in future bio - optical algorithms to derive chlorophyll a concentration more accurately.

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期刊信息
  • 《海洋学报:英文版》
  • 主管单位:
  • 主办单位:中国海洋学会
  • 主编:潘德炉
  • 地址:北京海淀大慧寺路8号
  • 邮编:100081
  • 邮箱:hyxbe@263.net
  • 电话:010-62179976
  • 国际标准刊号:ISSN:0253-505X
  • 国内统一刊号:ISSN:11-2056/P
  • 邮发代号:82-285
  • 获奖情况:
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘(网络版),荷兰文摘与引文数据库,美国剑桥科学文摘,美国科学引文索引(扩展库),英国科学文摘数据库,英国动物学记录
  • 被引量:331