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Plankton: (From the Greek word that means to "drift or wander") A general term that refers to non or weak swimming organisms living in water.                                   
Note: All samples from near coastal waters off Santa Cruz, Ca unless otherwise stated. 
Note: All photos taken by Keith Dahlin.

Zoo-plankton:  (Greek; "animal-wanderer")  
Phyto-plankton:  (Greek; "plant-wanderer")

Cope-pod (Greek; "oar-foot") - 11,500 spp. described.  
Red Pigmented Naupliar Eye
Basic Body Form
Urosome
Antennule

Dino-flagellates (Greek; "whirling-whip") - 2000 spp. described.

Ceratium furca
Protoperidinium spp.
Dinophysis spp.
Prorocentrum spp.

Diatom (Greek; "cut in two")

Barnacle (Latin; "obscure, unknown origin") - 1,445 spp. described

Nauplius Larva/ Dark Field
Nauplius Larva/ Bright Field
Tetraclita rubescens - Adult Acorn Barnacle

Sea Urchin (The Sea Hedgehog)

Pluteus/ Urchin Larva at 3 wks
Strongylocentrotus purpuratus Adult Purple Sea Urchin

Freshwater Plankton (Boulder Creek, Boulder, CO)

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