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|Title: ||Trophic Coupling between Synechococcus andPigmented Nanoflagellates in the Coastal Waters ofTaiwan, Western Subtropical Pacific.|
|Authors: ||Lin Yun-Chi;Tsai An-Yi;Chiang Kuo-Ping|
|Keywords: ||Synechococcus;pigmented nanoflagellates;trophic coupling|
|Issue Date: ||2018-03-02T08:31:25Z
|Publisher: ||Journal of Oceanography|
|Abstract: ||Abstract:In our attempt to characterize the interaction of trophic coupling between Synechococcus and pigmented nanoflagellates (PNFs), successive size-fraction experiments were performed at a coastal station on the northeast coast of Taiwan from June, 2005 to January, 2006. By estimating the growth rate and grazing rate of Synechococcus in the presence of nanoflagellates of different sizes, we truncated the food web by removing organisms with different body sizes (<2 µm, <5 µm, <10 µm, and <20 µm). The growth rates of Synechococcus ranged from −0.016 to 0.051 h−1 during the experimental period, suggesting that temperature was a primary mechanism controlling Synechococcus growth. In addition to size and relative biomass of pigmented nanoflagellates and Synechococcus, it is suggested that community structures played an important role in trophic link. Furthermore, we conclude that the trophic cascading effect in the northeast coast of Taiwan includes: 1) high grazing rates at night in the warm season; 2) the Synechococcus biomass generally exceeds the grazing threshold (6 × 104 cells mL−1); and 3) the biomass ratio of <5 µm PNFs to >5 µm PNFs should be 1:1 to 2:1.|
|Relation: ||65(6) pp.781-789|
|Appears in Collections:||[海洋環境與生態研究所] 期刊論文|
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