Bosmina - a
small (~0.5mm) zooplankton. It feeds on small algae by filtering
around 0.5 ml of water per day.
Daphnia - a
large (~2.5mm) zooplankton. A filter feeder, Daphnia feed on
small algae up to ~100µm in size. Depending on the species, Daphnia
can filter from 3-6 ml of water per day. NOTE: 3 embryos in the
brood pouch.
Read a fascinating article about Daphnia
dispersal and diapause at: article
Calanoid copepod - a large, (2.5
mm) zooplankton. Note more tapered head, single eye, and 2nd antennae
that extend to beyond the body.
Cyclopoid copepod - a large, (2.5 mm) zooplankton.
Note blunt head, single eye, and 2nd antennae that extend only to mid-thorax.
Nauplius - a developmental stage of Copepods.
This specimen is likely a mid-stage of a Calanoid copepod.
Ostracod - are oldest known microfauna (Cambrian);
chitinous exoskeleton; littoral benthic habitat; require 7.3-9.5 mg/L
dissolved oxygen.
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This page was last modified
September 11, 2006
joneswi@indiana.edu
