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Scientific Name: Tropocyclops prasinus (Fischer, 1860)
English Name: Water Flea
Local/Bangla Name: Pani Poca (পানি পোকা), Cyclops (সাইক্লপস)
Zooplankton : Tropocyclops prasinus

Photo: Smithsonian Institution (iNaturalist)

Classification:
Kingdom: Animalia
Phylum: Arthropoda
Class: Copepoda
Order: Cyclopoida
Family: Cyclopidae
Description:
The female of this organism is characterized by a short, stumpy body with an opaque and somewhat brownish coloration. The metasome is elliptical, twice as long as it is wide, with the metasomal length being twice the length of the urosomal segments. The last thoracic segment bears a patch of hair on the posterolateral margin. The divergent caudal rami are short, nearly three times longer than they are wide, lacking any bristles on the inner margin, and each ramus has an apical seta. The antennule reaches near the end of the third metasomal segment, and the fifth leg is trilobate, with the inner spine slightly shorter than the outer spine and sparsely denticulate. The genital segment is slightly dilated anteriorly. The length of the female organism ranges from about 0.70 mm to 0.95 mm. The male counterparts are smaller than the females, with a cephalic segment that is anteriorly rounded and relatively shorter. The urosome is 5-segmented, more than half the length of the metasomal segments. The caudal rami are symmetrical, and the antennule is twice gemocilate. The fifth leg is trilobed, with the inner spine thinner, slender, and longer than the outer spine. The length of the male organism ranges from 0.50 mm to 0.68 mm. The life cycle primarily consists of six different naupliar stages and five copepodid stages. Notably, newly hatched nauplius larvae lack external segmentations, but significant changes are observed during the moult of the copepodid stages, which closely relate to the adult form.
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