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Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Branchiopoda
Order: Cladocera
Family: Moinidae
Genus: Moina
Baird, 1850 [1]
Type species
Moina brachiata (Jurine, 1820) [2]

Moina is a genus of crustaceans within the family Moinidae.[3] The genus was first described by W. Baird in 1850. They are referred to as water fleas but are smaller than their more well-known cousins: the larger Daphnia magna and the medium-sized Daphnia pulex.[4] This genus demonstrates the ability to survive in waters containing low oxygen levels as well as high salinity and other impurities, including salt pans, and commonly eutrophication.[5] An example of such an extreme habitat is the highly saline Makgadikgadi Pans of Botswana, which supports the species Moina belli prolifically.[6]


Moina contains the following species:[1]