https://phys.org/news/2018-08-surfing-bacteria-reveal-insights-ocean.html

Invisible to the naked eye, microbes constitute almost 98 per cent of the ocean's biomass and are responsible for keeping the marine ecosystem healthy.

A paper recently published in Scientific Data, led by University of Newcastle's Dr. Mark Brown and Macquarie University's Dr. Martin Ostrowski, reveals the vast diversity of microbes and provides new knowledge about their environmental behaviour.