Definition of freshwater flea in English:

freshwater flea

noun

  • another term for daphnia
    • ‘Tests on fathead minnows and freshwater fleas indicated the wastewater was toxic to wildlife, the lawsuit said.’
    • ‘The organisms used in this test, a species of freshwater flea and fathead minnow, are surrogates for the aquatic community of the receiving waters.’
    • ‘One butt per two gallons of water was enough to be acutely toxic to the freshwater fleas.’
    • ‘This study will employ a new technology to measure large numbers of small molecules in the tissues of two different aquatic invertebrates (a freshwater flea and a marine mussel).’