English: The central role played by pelagic fungi, both parasitic and saprotrophic in the mycoloop, and saprotrophic fungi as active contributors to the microbial loop. The activity of heterotrophic microbes, including pelagic fungi, has far-reaching global implications for fisheries (i.e., the amount of carbon that will ultimately flow to higher trophic levels) and climate change (i.e., the amount of carbon that will be sequestered in the ocean or respired back to CO2 and the release of other greenhouse gases; e.g., N2O)