THE ECOLOGICAL ROLE OF WATER-COLUMN MICROBES IN THE SEA
THE ECOLOGICAL ROLE OF WATER-COLUMN MICROBES IN THE SEA
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DOI：
10.3354/meps010257
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发表时间：
1983-01-01
影响因子：
2.5
通讯作者：
THINGSTAD, F
中科院分区：
文献类型：
--
作者：
AZAM, F;FENCHEL, T;THINGSTAD, F
最近开发的估计细菌生物量和生产力的技术表明，海洋中的细菌生物量与浮游植物浓度有关，并且细菌利用了光合作用固定的10-50%的C。游离细菌的数量由纳米浮游异养鞭毛虫控制，这种鞭毛虫在海洋水体中普遍存在。鞭毛虫又被微型浮游动物捕食。异养鞭毛虫和微型浮游动物覆盖与浮游植物相同的大小范围，从而提供了将一些能量从微生物循环返回到常规浮游食物链的手段。
Recently developed techniques for estimating bacterial biomass and productivity indicate that bacterial biomass in the sea is related to phytoplankton concentration and that bacteria utilize 10-50% of C fixed by photosynthesis. Numbers of free bacteria are controlled by nanoplanktonic heterotrophic flagellates which are ubiquitous in the marine water column. The flagellates in turn are preyed upon by microzooplankton. Heterotrophic flagellates and microzooplankton cover the same size range as the phytoplankton, thus providing the means for returning some energy from the microbial loop to the conventional planktonic food chain.