Brief Description: This phytoplankton is apart of the Biddulphiales order and is typically considered as one of the largest marine planktonic diatom genera.
Habitat: It is commonly found in the both the Pacifc Ocean and Atlantic Ocean. It is thought to be an introduced species to the Atlantic Ocean. It’s ability to survive long periods in the dark suggests that it may have been introduced to the Atlantic through the emptying of ballast water from ships.
Identifying Features: Cells are solitary, and either disc-shaped, cylindrical or wedge shaped. They have numerous chloroplasts.