Fungal communities exist and thrive in the sea. It had long been assumed that bacteria are the most prevalent saprophytic species in marine environments and the largest contributors to organic matter decomposing, however many fungi also play major roles in such environments. Aquatic Fungi may thrive as obligate marine species (that grow and sporulate exclusively and permanently in seawater) or as facultative marine fungi (those that grow in freshwater milieu as well as seawater). Ter- restrial fungi can also grow within marine environments when conditions are suitable