Origins and emerging consensus of the 10:1 ratio of virus abundance to bacteria abundance in aquatic systems - from freshwater lakes to the global oceans

Range Table - link
Organism Biosphere
Reference Charles H. Wigington et al., Re-examining the relationship between virus and microbial cell abundances in the global oceans, 25 January 2016 doi: link p.2 table I
Primary Source See refs beneath table
Method Abstract: "Here, [investigators] compile 5671 prokaryote and virus abundance estimates from 25 distinct marine surveys to characterize the relationship between virus and prokaryote abundances."
Comments P.2 left column bottom paragraph: "Observations accumulating over the past 25 years have observed wide variation in VPR [virus-to-prokaryote ratio], yet there is an emergent census that a suitable first-approximation is that VPR is 10 (see Table I BNID 104962). This ratio also reflects a consensus that typical prokaryote abundances are approximately 10^6 per ml and typical virus abundances are approximately 10^7 per ml [primary sources 50, 57]. Yet, the use of a fixed ratio carries with it another assumption: that of linearity, i.e., if prokaryote abundance were to double, then viruses are expected to double as well. An alternative is that the relationship between virus and prokaryote abundance is better described in terms of a nonlinear relationship, e.g., a power-law."
Entered by Uri M
ID 112654