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PROTOZOAN CONTROL OF BACTERIAL ABUNDANCES IN FRESH-WATER
BERNINGER, UG; FINLAY, BJ; KUUPPOLEINIKKI, P
1991
发表期刊LIMNOLOGY AND OCEANOGRAPHY
ISSN0024-3590
卷号36期号:1页码:139-147
摘要We have quantified the bacteria, heterotrophic nanoplankton (HNAN), and other microorganisms in 108 lakes, ponds, rivers, and bogs worldwide. These water bodies span the range of biological productivities in freshwater. Numbers of HNAN and bacteria are correlated over four orders of magnitude in each (3 x 10(2) to 4 x 10(6) ml-1 and 3 x 10(5) to 1 x 10(9) ml-1, respectively) and both increase with the productivity of the water body. Most HNAN are small (2-5-mu-m), colorless, flagellated protists. They grow at about the same rate as bacteria (mu = 0.01-0.02 h-1) and are capable of consuming the entire bacterial production. We suggest that bacterial abundances are regulated by substrate supply and HNAN grazing pressure. Ciliates and other grazing microzooplankton probably limit HNAN abundance, especially in the more productive water bodies. The structure and function of microbial food webs in freshwater environments may thus be similar to those suggested for marine systems.
部门归属FREE UNIV BERLIN,INST ZOOL,W-1000 BERLIN 33,GERMANY; TVARMINNE ZOOL STN,SF-10900 HANKO,FINLAND
学科领域Marine & Freshwater Biology ; Oceanography
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语种英语
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/9292
专题海洋微食物网高被引文献
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BERNINGER, UG,FINLAY, BJ,KUUPPOLEINIKKI, P. PROTOZOAN CONTROL OF BACTERIAL ABUNDANCES IN FRESH-WATER[J]. LIMNOLOGY AND OCEANOGRAPHY,1991,36(1):139-147.
APA BERNINGER, UG,FINLAY, BJ,&KUUPPOLEINIKKI, P.(1991).PROTOZOAN CONTROL OF BACTERIAL ABUNDANCES IN FRESH-WATER.LIMNOLOGY AND OCEANOGRAPHY,36(1),139-147.
MLA BERNINGER, UG,et al."PROTOZOAN CONTROL OF BACTERIAL ABUNDANCES IN FRESH-WATER".LIMNOLOGY AND OCEANOGRAPHY 36.1(1991):139-147.
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