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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/36649

Title: Viral and nanoflagellate control of bacterial production in the East China Sea Summer 2011.
Authors: An-Yi Tsai*;Gwo-Ching Gong;Jun-Kai Huang;Yun-Chi Lin
Contributors: NTOU:Institute of Marine Environmental Chemistry and Ecology
Keywords: bacterial production;Changjiang River;nanoflagellate grazing;viral lysis
Date: 2013-03
Issue Date: 2015-05-19T06:42:14Z
Publisher: Estuarine Coastal and Shelf Science
Abstract: This study investigated spatial patterns in bacterial, viral, nanoflagellate abundance and the loss of bacterial production due to viral lysis and nanoflagellate grazing across the surface water of East China Sea (ECS) during the summer (1–12 July) of 2011. Abundance of bacteria ranged from 1.3 × 105 to 12.4 × 105 cells mL−1, with the highest value found in surface coastal waters, coinciding with a peak in Chl a concentrations. Spatial variations in bacterial growth rates ranged from 0.029 to 0.071 h−1, the highest growth rate near the river mouth of the Changjiang River. Nanoflagellate grazing was responsible for most of the bacterial mortality, accounting for 59% of total mortality within the plume (salinity <31) and 66% outside the plume (salinity >31) on average. Variation in viral lysis was associated with environmental gradients and bacterial abundance. We found a balance budget between bacterial losses due to both bacterivory and viral infection and production, which suggests strong top–down control of bacteria in the ECS during the summer.
Relation: 120, pp.33-41
URI: http://ntour.ntou.edu.tw/handle/987654321/36649
Appears in Collections:[海洋環境與生態研究所] 期刊論文

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