THE LIFE OF A WATER FLEA: The first of three engraved and colored copper magnified images of the green polyps that eat the water fleas. Picture. Spiny Water Flea, Photo: croftangleart.com Impacts Spiny water fleas eat small animals (zooplankton), including Daphnia, which are an important food for. The Battle between Daphnia and Spiny Water Flea the native, algae-eating Daphnia — and the invasive spiny water flea that now feed on Daphnia. Daphnia . What are Daphnia? Daphnia. Photo via the Wilson Lab at Auburn University.
Description: A Water Flea swims in a jerky, hopping motion like a flea. Other major predators of Water Fleas are the Backswimmer, Water. longimanus). Photo of spiny waterflea magnified, actual size is 3/8 inch. Biology. The spiny waterflea is a predatory zooplankton that eats other zooplankton. water flea. Daphnia obtusa. Kingdom: Animalia. Division/Phylum: Arthropoda Water fleas are compressed side to side. Water fleas eat bacteria and algae.
Credit: Image courtesy of University at Buffalo "Most freshwater fish eat water fleas at some point in their lives," said Derek J. Taylor, Ph.D. Photo by L. Brian Stauffer Like mosquito larvae, water fleas eat algae and other microbes in the water, and so can be seen as competitors. Similarly, we scientists use a little water flea called Daphnia magna for this of Daphnia available for baby fish to eat and grow big and strong.