Cladocera


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Related to Cladocera: Copepoda, Rotifera, water flea

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 ?
Subsamples measuring 10.5 mL for Ostracoda, 0.2-1.5 mL for chydorid Cladocera, and 2.0-3.0 mL for Chironomidae were prepared by dispersing the sediment matrix in warm 10% KOH for 45 mm (Walker and Paterson 1985), and sieving through 250-[micro]m and 105-[micro]m mesh sieves.
A total of 76 zooplankton species were identified in the lake, including 17 protozoa species, 36 rotifera species, 12 cladocera species and 11 copepods species, respectively.
australis in shallow lakes of Corrientes, Argentina Characidium rachovii Items % N % F % V IRI JD Arachnida Acarina 0.95 17.31 0.88 3.52 13.1 Araneae -- -- -- -- -- Pseudoescorpionida -- -- -- -- -- Chlorophyta Algas filamentosas 0.06 0.96 0.45 0.27 1.01 Crustacea Amphipoda 0.21 4.81 1.01 1.11 4.13 Cladocera 62.73 82.69 0.67 26.84 100.
The water flea Daphnia magna (Crustacea, Cladocera) as a test species for screening and evaluation of chemicals with endocrine disrupting effects on crustaceans.
The effect of air temperature on species richness was analyzed for each zooplankton group individually (Copepoda, Cladocera and Rotifera) and also for total zooplankton.
TABLA IV TAXA REGISTRADOS EN LOS SITIOS ESTUDIADOS Taxa Sitio Sitio Sitio 1 2 3 Cladocera (efipios) x x x Copepoda Cyclopoida Eucyclops neumani Eucyclops silvestrii Ostracoda x x DIPTERA Blephariceridae x x Ceratopogonidae Chironomidae Chironomus gr.
Differences in species present between the two studies occur primarily in the Cladocera (18 species in this study compared to eight species in previous study) and the Rotifera (38 species this study compared to 10 species in the previous study).
Other occurring taxa included Cnidaria, Cladocera, Ostracoda, Amphipoda, Mysidacea, Pteropoda, Larvacea, and Chaetognatha were represented by a small number of species (Table IV), contributed collectively 19.68% and about 1% of the species richness and total abundance, respectively.