Copepod
A group of zooplankton that are very common and found in salt and freshwater.
Cladoceran
An order of zooplankton that is commonly called water fleas
Copepodite
Juvenile stage of copepods where the 5th leg is not yet developed.
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Nauplii
First larval stage of crustaceans. We do not count these anymore.
Prosome
The main body segment of a zooplankton.
Urosome
Section of body located inferior to the prosome.
Rami
Distal appendages where the urosome splits
Eye Spot
Heavily pigmented region that function as a light receptor.
Rostrum
Area in Cladoceran that’s inferior to the eye spot, and where the first antennae extend from.
First Antennae
In copepods, they are located at the top of the prosome. In Cladocerans, they extend from the rostrum
Second Antennae
Characteristic of Cladocerans, attached to carapace, or body, of the zooplankton. They look like arms.
Setae
Small, hair-like structures. In Copepods, they extend off the rami.
Gut Tract
Easily visible part of many Cladocerans.
