AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Evadne anonyx | |
Date of the first record (?) | 2006 References (not structured): Bielecka L., Mudrak-Cegiołka S., Kalarus M., 2014. Evadne anonyx G.O. Sars,1897 – the first record of this Ponto-Caspian cladoceran in the Gulf of Gdańsk (Baltic Sea). Oceanologia 56 (1), 141-150. |
Recipient region (?) | Country: Poland LME: 23. Baltic Sea References (not structured): Bielecka L., Mudrak-Cegiołka S., Kalarus M., 2014. Evadne anonyx G.O. Sars,1897 – the first record of this Ponto-Caspian cladoceran in the Gulf of Gdańsk (Baltic Sea). Oceanologia 56 (1), 141-150. |
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Source region (?) | LME: 23. Baltic Sea |
Pathway / Vector (?) | Level of certainty: Possible Pathway: Natural spread from neighboring countries Vector: Water currents Pathway: Vessels Vector: Ballast water |
Habitat type (?) | Estuary Lagoon Offshore Ports References (not structured): Bielecka L., Mudrak-Cegiołka S., Kalarus M., 2014. Evadne anonyx G.O. Sars,1897 – the first record of this Ponto-Caspian cladoceran in the Gulf of Gdańsk (Baltic Sea). Oceanologia 56 (1), 141-150. |
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Wave exposure (?) | Not entered | |
Salinity range (?) | Exact range: 4.6 - 7.5 References (not structured): Bielecka L., Mudrak-Cegiołka S., Kalarus M., 2014. Evadne anonyx G.O. Sars,1897 – the first record of this Ponto-Caspian cladoceran in the Gulf of Gdańsk (Baltic Sea). Oceanologia 56 (1), 141-150. |
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Temperature range (?) | Min: 4.2 Max: 23.6 References (not structured): Bielecka L., Mudrak-Cegiołka S., Kalarus M., 2014. Evadne anonyx G.O. Sars,1897 – the first record of this Ponto-Caspian cladoceran in the Gulf of Gdańsk (Baltic Sea). Oceanologia 56 (1), 141-150. |
Zonation / Substratum (?) | Pelagic: Littoral (Pelagic) References (not structured): Bielecka L., Mudrak-Cegiołka S., Kalarus M., 2014. Evadne anonyx G.O. Sars,1897 – the first record of this Ponto-Caspian cladoceran in the Gulf of Gdańsk (Baltic Sea). Oceanologia 56 (1), 141-150. |
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Reproductive duration (?) | Not entered | |
Reproductive seasonality (?) | Jul. Aug. References (not structured): Bielecka L., Mudrak-Cegiołka S., Kalarus M., 2014. Evadne anonyx G.O. Sars,1897 – the first record of this Ponto-Caspian cladoceran in the Gulf of Gdańsk (Baltic Sea). Oceanologia 56 (1), 141-150. |
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Migration pattern (?) | Not entered |
Population status (?) | Rare (single record) (Moderate level of certainty) References (not structured): Bielecka L., Mudrak-Cegiołka S., Kalarus M., 2014. Evadne anonyx G.O. Sars,1897 – the first record of this Ponto-Caspian cladoceran in the Gulf of Gdańsk (Baltic Sea). Oceanologia 56 (1), 141-150. Comments: The species was found in 10 sattions out of 13 investigated. |
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Species status (?) | Non-indigenous species References (not structured): Bielecka L., Mudrak-Cegiołka S., Kalarus M., 2014. Evadne anonyx G.O. Sars,1897 – the first record of this Ponto-Caspian cladoceran in the Gulf of Gdańsk (Baltic Sea). Oceanologia 56 (1), 141-150. |
Ports | Port: Gdynia Date of the first record: 2014 Salinity range (psu): 6.6 - 6.8 Population status: Not entered References: HELCOM 2015. BALSAM PROJECT – WORK PACKAGE 4: Testing Monitoring Methods for Non-Indigenous Species in Ports. Comments: In 2014 this species was recorded during port survey according to JHP Helcom/Ospar in concentrations below 2 ind./m3, but it could occur in port much earlier. |
Created by | Henn Ojaveer, 2014-05-10 |
Last update by | Monika Normant, 2020-08-07 |