CAJ | 학술논문

聚球蓝细菌是Pico级浮游植物的重要组成部分，微型浮游动物对聚球蓝细菌的摄食是海洋微食物网研究的重要内容。实验室内测定微型浮游动物对聚球蓝细菌摄食速率的方法有饵料浓度差减法和体内饵料颗粒增多法2种，研究表明：鞭毛虫对聚球蓝细菌的摄食速率为0~2.9 syn grazer-1 h-1，清滤速率0.4~10.9 nl grazer-1 h-1；甲藻对聚球蓝细菌的摄食速率的范围为0.86~83.8 syn grazer-1 h-1。实验室内研究纤毛虫对聚球蓝细菌摄食速率和清滤速率的资料不多。在自然海区，海水稀释培养、添加生物抑制剂培养和分粒级培养等方法被用来测定微型浮游动物对聚球蓝细菌摄食速率，海水稀释培养法表明微型浮游动物对聚球蓝细菌的摄食率大多低于0.9 d-1，最大为1.54 d-1；使用生物抑制剂方法获得的微型浮游动物对聚球蓝细菌的摄食率为0.04~1.06 d-1；海水分粒级培养法表明聚球蓝细菌的主要摄食者个体微小，绝大部分小于20μm。
취구람세균시Pico급부유식물적중요조성부분，미형부유동물대취구람세균적섭식시해양미식물망연구적중요내용。실험실내측정미형부유동물대취구람세균섭식속솔적방법유이료농도차감법화체내이료과립증다법2충，연구표명：편모충대취구람세균적섭식속솔위0~2.9 syn grazer-1 h-1，청려속솔0.4~10.9 nl grazer-1 h-1；갑조대취구람세균적섭식속솔적범위위0.86~83.8 syn grazer-1 h-1。실험실내연구섬모충대취구람세균섭식속솔화청려속솔적자료불다。재자연해구，해수희석배양、첨가생물억제제배양화분립급배양등방법피용래측정미형부유동물대취구람세균섭식속솔，해수희석배양법표명미형부유동물대취구람세균적섭식솔대다저우0.9 d-1，최대위1.54 d-1；사용생물억제제방법획득적미형부유동물대취구람세균적섭식솔위0.04~1.06 d-1；해수분립급배양법표명취구람세균적주요섭식자개체미소，절대부분소우20μm。
Marine microzooplankton grazing on Synechococcus is important in microbial food web study. Two methods ( the batch culture feeding experiments and the increase of prey number inside grazer cell) were used to measure the ingestion rate of microzooplankton grazing on Synechococcus in laboratory. The result showed that the rate of Synechococcus ingestion and the clearance by flagellate were in the range of 0~2.9 syn grazer-1 h-1 and 0.4~10.9 nl grazer-1 h-1, respectively. The ingestion rate of Synechococcus by dinoflagellate was in the range of 0.86~83.8 syn grazer-1 h-1. There were a few data on ciliate grazing on Synechococcus in laboratory experiment. Seawater dilution incubation, biological metabolic inhibitors addition, size fractionated incubation experiments and other methods were used to measure the ingestion rate of Synechococcus by microzooplankton in situ. Seawater dilution incubations indicated that grazing rate of microzooplankton on Synechococcus was less than 0.9 d-1 in most cases, 1.54 d-1 in maximum. The result of biological metabolic inhibitors addition incubations showed that grazing rate of microzooplankton on Synechococcus was in the range of 0.04~1.06 d-1. Size fractionated experiments indicated that the main grazers of Synechococcus were smaller than 20μm.