Diacronema

Diacronema is a genus of haptophytes.
It includes the species Diacronema vlkianum.
The Diacronema genus also includes the marine alga Diacronema lutheri. D. lutheri is a flagellated mobile microalga. It has two apical flagella of different lengths and a haptonema.
D.lutheri is capable of producing a large amount of polyunsaturated fatty acids, especially eicosapentaenoic acid and docosahexaenoic acid. This characteristic is therefore widely used to feed bivalve molluscs, crustaceans and fish.