Daphnia pulex  (Water Flea)

© Ian Gardiner (Photo ID #66336)

Photographer's Submitted Details

Photo Location	Brooks, Alberta
Photographer	Ian Gardiner
Habitat	Small, shallow lake
Photo Date
Upload Date	June 09, 2014
Elevation (m)
Latitude
Longitude
Photo ID #	66336
Comments	Ephippium of Daphnia pulex. This is the protective chamber containing the resting egg(s), two in the case of D. pulex. This type of egg is produced sexually at a time of deteriorating environmental conditions - in this case, the lake drying up. The ephippium is formed as the posterior-dorsal part of the carapace (see E-Fauna photo 11413), and is subsequently liberated by a moult or by the death of the female. Collected 04 June 2014.