Picoeukaryote

Picoeukaryotes are a group of small eukaryotic organisms, typically defined as organisms that range in size from about 0.2 to 2 micrometers in diameter. This size classification places them in the pico- size range, similar to pico-prokaryotes (such as bacteria). Picoeukaryotes are primarily unicellular and are found in various aquatic environments, including both marine and freshwater ecosystems.