Podonidae
Genus Guides
1Podonidae is a of onychopod cladocerans (small crustaceans) containing approximately 8 and at least 20 described . These organisms inhabit salt lakes and brackish waters, with notable in the Caspian and Aral Seas. Many species are non-native introductions that pose threats to aquatic . The family exhibits predominantly parthenogenetic with appearing insignificant.
Pronunciation
How to pronounce Podonidae: /poʊˈdoʊnɪdiː/
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Habitat
Large salt lakes and euryhaline waters. Documented from the Caspian Sea and Aral Sea, where tolerate wide salinity ranges except Caspievadne maximowitschi. Parthenogenetic females can survive and reproduce in southern lake areas during winter.
Distribution
Caspian Sea and Aral Sea; nine documented from these water bodies. GBIF records indicate presence in Denmark, Norway, and Sweden. The completely disappeared from the Aral Sea in 1989–1990, with Podonevadne camptonyx reappearing in the north Aral in 1991.
Life Cycle
appears insignificant; parthenogenetic predominates. Parthenogenetic females may live and reproduce year-round, including during winter in southern lake areas.
Behavior
Most are thermophilic; exceptions include Cornigerius bicornis, Caspievadne maximowitschi, and Pleopis polyphemoides. Demonstrated capacity for recovery following local extinction, as evidenced by reappearance in the Aral Sea.
Human Relevance
Many are non-native introductions that pose significant threats to aquatic .
More Details
Conservation history
The Podonidae serve as a case study in conservation , having completely disappeared from the Aral Sea during its ecological collapse in 1989–1990, followed by reappearance of Podonevadne camptonyx in 1991, suggesting rehabilitation potential for the .
Genera
Caspievadne, Cornigerius, Evadne, Pleopis, Pleopsis, Podon, Podonevadne, Pseudevadne