Cladocera

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Related to Cladocerans: water fleas

Cladocera

[kla′däs·ə·rə]
(invertebrate zoology)
An order of small, fresh-water branchiopod crustaceans, commonly known as water fleas, characterized by a transparent bivalve shell.

Cladocera

 

a suborder of branchiopod crustaceans. They have a pair of large second antennae, which consist of two branches and serve as organs of motion. The torso is covered with bivalve chitinous shells. An alternation of sexual and asexual reproduction, parthenogenesis, is characteristic of the Cladocera. They are from 0.25 to 10 mm long. There are about 380 species. They are largely freshwater animals, living in various bodies of water, from small pools to large lakes. Very few live in the seas. Cladocera serve as food for many fish (smelt, vendace, bleaks, some types of white fish, and others). Certain Cladocera (daphnia) are used as artificially raised food for fish farms and aquariums. Cladocera are good indicators of water pollution, since the majority of Cladocera live in almost clean or slightly polluted reservoirs.

References in periodicals archive ?
As powerful predators on bacteria and small algae, ciliates can be strong food competitors for poorly fed cladocerans in this lake.
Month D J F M A M J J Cladocerans Moina eugeniae X X X X X X Oliver, 1954 Copepods Boeckella poopoensis X X X X X X X X Marsh, 1906 Metacyclops mendocinus X X X (Wierzejski, 1892) Rotifers Hexarthra fennica X X (Levander, 1982) Brachionus piicatilis X Muller, 1786 Brachionus dimidiatus X Bryce, 1931
Other less abundant groups (<1%) such as siphonophores, medusae, cladocerans, heteropods, appendicularians and echinoderm larvae showed a negative correlation (-0.
Hubschman (1960) published daily population densities of cladocerans from the Bass Island region of Lake Erie for the summer of 1959.
Population growth of some genera of cladocerans in relation to algal food (Chlorella vulgaris) levels.
Methodological aspects of toxicology bioassay on Daphnia magna and other cladocerans (critical review).
Abstract Larval snakehead Channa striatus were fed with three cladocerans (Ceriodaphnia cornuta, Moina micrura and Daphnia carinata) and Artemia nauplii at the rate (500 Ind.
The ability of cladocerans to ingest food of wider range and their higher filtering rates give them a better competitive edge over the rotifers.