Relation between the abundance of prokaryotes and total viruses versus depth (A), LFV versus depth (B), total viruses versus picoplankton (C), total viruses versus HetProk (D), LFV and prokaryotes (E) and HFV abundance and Euk (F) in the whole water column of 22 vertical-sampling stations.

<p>The fitting function used is: y = ax+b, all the data were log transformed. Abbreviations: LFV, low fluorescence viruses; HFV, high fluorescence viruses; HetProk, heterotrophic prokaryotes; Euk, picoeukaryotes.