DescriptionViral loop within the microbial food web in Amazonian lakes.jpg
English: Viral loop within the microbial food web in Amazonian lakes
There is a semi-closed loop connecting bacteria, viruses, and dissolved organic matter (DOM). Primary producers and grazers are the two external suppliers of DOM to the loop. In Amazonian lakes, however, hydrodynamics is also a pivotal forcing influencing the loop, as it regulates the availability and quality of DOM. Additionally, hydrodynamics promotes water dilution and mixing that change the abundance of the different microbial compartments of the scheme. Modified from Fuhrman (1999). *there are two different arrows connecting “primary producers” with “DOM and nutrients” because primary producers uptake and release nutrients, but they only release DOM.
Fuhrman, J. A. (1999). Marine viruses and their biogeochemical and ecological effects. Nature 399, 541–548. doi: 10.1038/21119
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