Bacterioplankton dynamics along the gradient from highly eutrophic Pearl River Estuary to oligotrophic northern South China Sea in wet season: implication for anthropogenic inputs.
Bacterioplankton dynamics along the gradient from highly eutrophic Pearl River Estuary to oligotrophic northern South China Sea in wet season: implication for anthropogenic inputs.
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DOI：
10.1016/j.marpolbul.2011.01.018
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发表时间：
2011-04
影响因子：
5.8
通讯作者：
Weihua Zhou;A. Long;Tao Jiang;Shao-yong Chen;Liang-min Huang;Hui Huang;Chuanghua Cai;Yan Yan-Yan
中科院分区：
文献类型：
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作者：
Weihua Zhou;A. Long;Tao Jiang;Shao-yong Chen;Liang-min Huang;Hui Huang;Chuanghua Cai;Yan Yan-Yan
Bacterioplankton abundance (BA) and biomass (BB) from the eutrophic Pearl River Estuary (PRE) to the oligotrophic northern South China Sea (NSCS) were studied in the wet season. BA was significantly higher (p<0.05) in PRE (12.51±3.52×108cellsL−1), than in the continental shelf neritic province (CSNP, 4.95±2.21×108cellsL−1) and in the deep oceanic province (OP, 3.16±1.56×108cellsL−1). Nutrient-replete PRE waters (DIN>100μM and PO4>1μM) resulted in high chl a and BB, whereas nutrient-depleted offshore waters (DIN <5μM and PO4<0.5μM) had low biomass. Temperature (>26°C) was not the controlling factor of BA. BB was significantly correlated with chl a biomass both in PRE and NSCS. The bacteria to phytoplankton biomass (BB/PB) ratio increased clearly along the gradient from near-shore PRE (0.15) to offshore CSNP (0.93) and deep OP (2.75), indicating the important role of small cells in the open ocean compared to estuarine and coastal zones.
