Chaetoceros danicus

Cells are solitary or formshort chains (apical axis 13-18 microns). Setae emerge from the valve margin perpendicular to the pervalvar axis, they only diverge slightly from the apical plane

C. danicus is a species of diatom associated with fish kills, but not known to be harmful to humans (Horner et al. 1997).

C. danicus is found on the west coast of North America (Horner et al. 1997).

Chaetoceros danicus is a marine unicellular species of diatom in the family Chaetocerotaceae, first described by Cleve in 1889. Individual cells of C. danicus do not form long chains, unlike most other species of Chaetoceros. It forms siliceous oozes.