Paracalanus parvus

Taxon-Order: 

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Distribution: 
Tropical and subtropical zones of all oceans.
Habitat: 
Mainly coastal-neritic, epipelagic.
Size: 
Female 0.6-1.3 mm; male 0.8-1.4 mm
Diet: 
Phytoplankton.
Predators: 
Fish and others.
Useful Facts or Characters: 

1st antennae are longer than the prosome; prosome of female with 4 segments and urosome with 4 segments.

Natural History: 

Occurs year round off San Diego. A euryhaline species, capable of tolerating a range of salt water concentrations.