Royal Netherlands Institute for Sea Research
Royal Netherlands
Institute for Sea Research

Thalassionema pseudonitzschioides

No bloom without fission...

This elongated pennate diatom Thalassionema pseudonitzschioides (Bacillariophyceae) is often the first species of the diatom bloom in early spring. This photo shows a stellate colony consisting of four dividing (so in fact eight) cells.