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Scientific Name: Chydorus barroisi (Richard, 1894)
English Name: Water Flea
Local/Bangla Name: Pani Poka (পানি পোকা)
Zooplankton : Chydorus barroisi

Photo: Gilles San Martin (iNaturalist)

Classification:
Kingdom: Animalia
Phylum: Arthropoda
Class: Branchiopoda
Order: Anomopoda
Family: Chydoridae
Description:
The female organism has a broadly elliptical body, with its highest point in the middle. Both the dorsal and ventral margins are curved similarly, while the posterior margin is straight. The valves are rounded at the back upper corner, with a small denticle at the lower rear corner. There’s also a notch at the front of the rostrum. The head shield has a rounded posterior margin, and the antennules are short and conical. The labrum has 3-5 denticles along its front edge, and there’s an ocellus positioned halfway between the eye and the tip of the rostrum. The postabdomen is short and bears 8-9 uneven anal spines. The claw features two basal spines and setae along its concave edge. The length of the organism ranges from 0.30 to 0.38 mm. Regarding reproduction, this organism reproduces via parthenogenesis. The parthenogenetic female undergoes multiple adult stages and produces batches of eggs, which are then incubated in the mother’s brood pouch. Embryonic development takes place within this pouch, and the offspring are eventually released as juveniles.
Habitat & Distribution in Bangladesh:
Commonly found in rivers in Bangladesh, such as the Halda River.
Environment:
Freshwater
Main References:

Ahmed ATA, Kabir SMH, Ahmad M, Rahman AKA, Haque EU, Ahmed ZU, Begum ZNT, Hassan MA, Khondker M (eds.) (2008) Encyclopedia of Flora and Fauna of Bangladesh, Vol. 18. Part II. Arthropoda: Crustacea. Asiatic Society of Bangladesh, Dhaka, 226 pp

DNA Barcodes from Bangladesh
GenBank Accession Number:
Other DNA Barcodes & Nucleutide Sequences
Global IUCN conservation status:
Other Information