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Related to daphnia: Daphnia pulex


n. pl. daphnia
Any of various water fleas of the genus Daphnia, having long branched antennae, some species of which are commonly used as food for aquarium fish.

[New Latin Daphnia, genus name, from Greek Daphnē, Daphne.]


(Animals) any water flea of the genus Daphnia, having a rounded body enclosed in a transparent shell and bearing branched swimming antennae
[C19: from New Latin, probably from Daphne]


(ˈdæf ni ə)
n., pl. -ni•as.
any tiny freshwater branchiopod crustacean of the genus Daphnia, used as aquarium food.
[1840–50; < New Latin, perhaps after Daphne; see -ia]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.daphnia - minute freshwater crustacean having a round body enclosed in a transparent shelldaphnia - minute freshwater crustacean having a round body enclosed in a transparent shell; moves about like a flea by means of hairy branched antennae
branchiopod, branchiopod crustacean, branchiopodan - aquatic crustaceans typically having a carapace and many pairs of leaflike appendages used for swimming as well as respiration and feeding
genus Daphnia - water fleas
References in periodicals archive ?
The research builds on recent findings from the Jefferson Project at Lake George, showing that a common species of zooplankton, Daphnia pulex, can evolve tolerance to moderate levels of road salt in as little as two and a half months.
Rotifera'dan Dicranophorus epicharis (%32,14), Keratella quadrata (%16,96), Anuraeopsis fissa (%9,77), Cladocera'dan Chydorus sphaericus (%7,25), Daphnia longispina (%1,20) turleri baskin olurken, Copepoda tek tur Arctodiaptomus acutilobatus ile temsil edilmistir.
The aim was to determine experimentally the potential predation of the young and adult backswimmerA/arfarega itntgitayensis (Berg) on the most abundant and frequent Zooplankton species in Lake Monte Alegre, the cladocerans Daphnia gessneri Herbst and Ceriodaphnia richardi Sars.
kindtii decreased dramatically, along with concurrent decreases and changes in species composition in the Daphnia community (Lehman and Caceres 1993).
Trout are moving on the bottom pond; but feeding on daphnia and proving difficult to catch.
Consumer growth response of selected model species (Chlamydomonas, Selenastrum, Brachionus, Diaptomus, Daphnia, Drosophila) will be measured at each level in terms of: ribosomal DNA genes and intergenic spacers; genome size; nucleic acid and protein content; cell size; body size and elemental composition; and growth rates.
Chronic studies are generally performed on fish, daphnia and algae, per the EU and U.
The ultrastructural features of the gill epithelium of adult Daphnia magna are consistent with their dual function of ion transport from the surrounding medium to the hemolymph and transport of macromolecules from the hemolymph towards the cuticle.
In this issue of EHP, researchers suggest that altered lipid transport from the maternal organism to the egg by a known obesogen may be responsible for reproductive problems in Daphnia magna, a tiny freshwater crustacean.