Acartia (Acanthacartia) tonsa

Taxon-Order: 

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Distribution: 
Worldwide, in the Atlantic, Indian, and Pacific oceans, and the Azov, Baltic, Black, Caspian, and Mediterranean seas.
Habitat: 
Coastal, neritic.
Size: 
Female 1.3-1.5 mm; male 1.0-1.1 mm
Diet: 
Phytoplankton, ciliates, rotifers, and their own eggs and nauplii.
Predators: 
Gelatious zooplankton and others.
Natural History: 

Appears to be most abundant in summer in this area.