Grazing impact of two small heterotrophic flagellates on Prochlorococcus and Synechococcus
Grazing impact of two small heterotrophic flagellates on Prochlorococcus and Synechococcus
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DOI：
10.3354/ame026201
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发表时间：
2001-12-05
影响因子：
1.4
通讯作者：
Vaulot, D
中科院分区：
文献类型：
--
作者：
Guillou, L;Jacquet, S;Vaulot, D
在公海水域，浮游植物生物量主要由2到3微米以下的生物(微微和小型纳米浮游植物)控制。由于营养限制和强大的放牧压力，这些种群的细胞密度在时间和空间上非常稳定，尽管直接以微浮游动物为食的生物的身份在很大程度上尚不清楚，但人们认为它们的数量很少，即鞭毛虫细胞可以通过一个2微米的过滤器，在依靠大小分级将捕食者和猎物分开的野外实验中，应该考虑到这种微小捕食者的影响。
In open oceanic waters, phytoplankton biomass is dominated by organisms below 2 to 3 mum in size (pico- and small nanophytoplankton). The cell concentration of these populations is very stable in time and space as a consequence of nutrient limitation and strong grazing pressure, Although the identity of the organisms that directly graze on picoplankton is largely unknown, they are thought to be very small, i.e. 80%) of P. flagellatus cells can pass throughout a 2 mum filter, the impact of such tiny predators should be taken into consideration during field experiments that rely on size fractionation to separate grazers from prey.