Bacterial influence on chromophoric dissolved organic matter in coastal waters of the northern South China Sea
Bacterial influence on chromophoric dissolved organic matter in coastal waters of the northern South China Sea
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南海北部近岸海域细菌对有色溶解有机物的影响
DOI：
10.3354/ame01778
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发表时间：
2016-01
影响因子：
1.4
通讯作者：
Liu Hongbin
中科院分区：
文献类型：
--
作者：
Yuan X;Zhou Weihua;Huang Hui;Yuan Tao;Li Xiubao;Yue Weizhong;Gao Yongli;Liu Sheng;Pan Gang;Liu Hongbin
2011年夏季，对南海北方2个站位的有色溶解有机物（CDOM）、细菌产量（BP）和浮游植物生物量（chl a）进行了调查。结果表明，香港东部沃茨的叶绿素a含量高于三亚湾，而CDOM的含量则相反。表层CDOM与叶绿素a的这种分离表明浮游植物生物量不是影响CDOM分布的决定性因素。香港湾仔的CDOM含量偏低，可能与缺乏CDOM的深水沃茨的上升流有关。此外，在SYB的培养实验开始期间，细菌产生的CDOM比在HKEW的多，尽管细菌的CDOM周转时间为~4至10 d，并且在SYB和HKEW之间没有显着差异（p > 0.05）。在SYB条件下，氮的加入使CDOM周转时间缩短了2倍。上升流可能导致细菌的磷缺乏，而磷富集增加了细菌丰度（BA）和BP。有趣的是，富氮增加BP和CDOM产生SYB，但富磷没有改变CDOM在任何位置，这表明CDOM分布与氮比磷的可用性。
Chromophoric dissolved organic matter (CDOM), bacterial production (BP) and phytoplankton biomass (chl a) were investigated at 2 coastal sites in the northern South China Sea during summer 2011. Our data showed that chl a levels were higher in Hong Kong eastern waters (HKEW) than Sanya Bay (SYB), but CDOM exhibited the opposite pattern. This decoupling between surface CDOM and chl a indicates that phytoplankton biomass is not the determining factor affecting CDOM distribution. The low levels of CDOM in HKEW could be associated with upwelling of CDOM-deficient deep waters. In addition, bacteria produced more CDOM during the beginning of incubation experiments at SYB than at HKEW, although CDOM turnover time by bacteria was ~4 to 10 d and showed no significant difference between SYB and HKEW (p > 0.05). Addition of nitrogen shortened the CDOM turnover time by 2 fold at SYB. Upwelling likely resulted in a phosphorus deficiency for bacteria, and phosphorus enrichment increased bacterial abundance (BA) and BP at HKEW. Interestingly, nitrogen enrichment increased both BP and CDOM generation in SYB, but phosphorus enrichment did not change CDOM at either location, suggesting that CDOM distribution is more associated with nitrogen than phosphorus availability.
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影响因子：
3.6
作者：
Morel, A;Maritorena, S
通讯作者：
Maritorena, S
影响因子：
3.4
作者：
Chuqun Chen;P. Shi;Haigang Zhan
通讯作者：
Chuqun Chen;P. Shi;Haigang Zhan
影响因子：
4.5
作者：
del Giorgio, Paul A.;Condon, Robert;Gasol, Josep M.
通讯作者：
Gasol, Josep M.
DOI：
10.1016/b978-012323841-2/50013-0
发表时间：
2002
期刊：
--
影响因子：
--
作者：
N. Nelson;D. Siegel
通讯作者：
N. Nelson;D. Siegel
影响因子：
13.5
作者：
F. Sousa;Susana Nascimento;Hugo Casimiro;D. Boutov
通讯作者：
F. Sousa;Susana Nascimento;Hugo Casimiro;D. Boutov