AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Evadne anonyx [WoRMS] | |
Authority | G.O. Sars, 1897 | |
Family | Podonidae | |
Order | Diplostraca | |
Class | Branchiopoda | |
Phylum | Arthropoda | |
Synonym (?) | ||
Sub-species level (?) | Not entered |
Native origin (?) | LME: 62. Black Sea --> LME sub-region: Azov Sea --> LME sub-region: Black Sea LME: A2. Caspian Sea --> LME sub-region: Caspian Sea References (not structured): Rivier I. K. (1996) K taksonomij Evadne anonyx Sars. Tr. Inst. Biol. Vnutr. Vod. 12: 151-158. Rivier I. K. (1998) The Predatory Cladocera (Onychopoda: Podonidae, Polyphemidae, Cercopagidae) and Leptodorida of the World. The Netherlands: Backhuys Publishers Leiden. Comments: Evadne anonyx is a native species of the Caspian and Aral lakes (though not currently present in the Aral due to increased salinity), and estuarine areas of the Black and Azov Seas. |
Life form / Life stage (?) |
References (not structured): Rodionova NV, Panov EV (2006) Establishment of the Ponto-Caspian predatory cladoceran Evadne anonyx in the eastern Gulf of Finland, Baltic Sea. Aquatic Invasions (2006) Volume 1, Issue 1: 7-12 Comments: planktonic cladoceran |
Sociability / Life stage (?) |
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Reproductive frequency (?) | Iteroparous References (not structured): Põllupüü, M., Simm, M., Põllumäe, A., & Ojaveer, H. (2008). Successful establishment of the Ponto-Caspian alien cladoceran Evadne anonyx GO Sars 1897 in low-salinity environment in the Baltic Sea. Journal of plankton research, 30(7), 777-782. |
Reproductive type (?) | Asexual Sexual References: Põllupüü, M., Simm, M., Põllumäe, A., & Ojaveer, H. (2008). Successful establishment of the Ponto-Caspian alien cladoceran Evadne anonyx GO Sars 1897 in low-salinity environment in the Baltic Sea. Journal of plankton research, 30(7), 777-782. Comments: Cyclically partenogenetic. The parthenogenetic fecundity of E. anonyx correlates positively with water temperature. |
Developmental trait (?) | Brooding References: Põllupüü, M., Simm, M., Põllumäe, A., & Ojaveer, H. (2008). Successful establishment of the Ponto-Caspian alien cladoceran Evadne anonyx GO Sars 1897 in low-salinity environment in the Baltic Sea. Journal of plankton research, 30(7), 777-782. Comments: Eggs are brooded in the female pouch |
Characteristic feeding method / Life stage (?) |
References (not structured): Rodionova NV, Panov EV (2006) Establishment of the Ponto-Caspian predatory cladoceran Evadne anonyx in the eastern Gulf of Finland, Baltic Sea. Aquatic Invasions (2006) Volume 1, Issue 1: 7-12 |
Mobility / Life stage (?) |
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Salinity tolerance range (?) | Venice system: 4. β-Mesohaline [5-10psu] 5. α-Mesohaline [10-18psu] References: Põllupüü, M., Simm, M., Põllumäe, A., & Ojaveer, H. (2008). Successful establishment of the Ponto-Caspian alien cladoceran Evadne anonyx GO Sars 1897 in low-salinity environment in the Baltic Sea. Journal of plankton research, 30(7), 777-782. Comments: In the native environment (Caspian Sea), E. anonyx is present at maximum abundances when the water salinity 12–13 psu. Before invading the Baltic Sea, E. anonyx was not considered as a high risk species for low-salinity environments because it was thought that the species is unable to survive at salinities below 9 psu. However, it was then found in the low salinity (around 5 psu) environment. |
Habitat modifying ability potential (?) | Autogenic ecosystem engineers References: Põllupüü, M., Simm, M., Põllumäe, A., & Ojaveer, H. (2008). Successful establishment of the Ponto-Caspian alien cladoceran Evadne anonyx GO Sars 1897 in low-salinity environment in the Baltic Sea. Journal of plankton research, 30(7), 777-782. Comments: Evadne anonyx may represent an important food recource for zooplanktivorous fish as well as other predatory cladocerans. |
Toxicity / Life stage (?) | Not entered |
Bioaccumulation association (?) | Not entered |
Known human health impact? | Not entered |
Known economic impact? | Not entered |
Known measurable environmental impact? | Not entered |
Included in the Target Species list? | Not entered |
Association with vessel vectors (?) | Ballast waters References: Rodionova, N. V., & Panov, V. E. (2006). Establishment of the Ponto-Caspian predatory cladoceran Evadne anonyx in the eastern Gulf of Finland, Baltic Sea. Aquatic Invasions, 1(1), 7-12. Comments: E. anonyx invaded the Baltic Sea in the late 1990s from the Caspian Sea via the Volga–Baltic waterwaythrough the transport of ballast water of ships. |
Molecular information | Not entered |
Last update by | Maiju Lehtiniemi, 2015-09-02 |