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| Astacus Pachypus |
Thick-clawed Crayfish
Caspian Crayfish
Dneiper-Bug Lagoon
Kingdom Animalia
Phylum ARTHROPODA
Subphylum Crustacea
Class Malacostraca
Order Decapoda
Family Astacidae
Genus Astacus
Scientific name : Astacus Pachypus
Synonyms Astacus Pachypus :
Astacus Caspius Eichwald, 1841
Caspiastacus Pachypus (Rathke, 1837)
Pontastacus Pachypus (Rathke, 1837)
Potamobius Pachypus (Rathke, 1837)
Common Name/s Astacus Pachypus :
English - Thick-clawed Crayfish
Ukraine - Dneiper-Bug Lagoon
Countries Native Astacus Pachypus:
Azerbaijan; Kazakhstan; Russian Federation; Turkmenistan; Ukraine
Presence uncertain Astacus Pachypus :
Bulgaria; Georgia
Astacus Pachypus, the Caspian crayfish is a species of crayfish found in the Caspian Sea, the Don river, and parts of the Black Sea and Sea of Azov,where it lives in salinities of up to 14‰. Astacus Pachypus is listed as Data Deficient in the IUCN Red List.
Astacus Pachypus is indigenous to Russia, Ukraine, Azerbaijan, Turkmenistan and Kazakhstan (Machino and Holdich 2006; Holdich et al. 2009). In Azerbaijan it is known from the coastal waters off Baku (Holdich 2002); in Kazakhastan this species is known from the coastal waters of the Caspian Sea (Sokolsky et al. 1999); in Turkmenistan it is known from coastal waters (Cherkashina 1999a); in the Ukraine Astacus Pachypus is known from the Dneiper-Bug Lagoon of the Azov-Black Sea Basin (Cherkashina 1999b). This species appears to be absent from the northern Caspian Sea which may be as a result of oil pollution (Souty-Grosset et al. 2006).
Astacus Pachypus was once reported from Bulgaria (Skurdal and Taugbøl 2001) however this is believed to be an error and there have since been no further reports of this species (A. Zaikov and G. Grozev pers. comm. 2002 cited in Holdich 2002).
Conservation Actions Astacus Pachypus : Astacus pachypus is listed as a species in 'danger of extinction', in the Red Data Book of the Region of Rostov in Russia (Souty-Grosset et al. 2006).
Monitoring of population numbers is needed to determine at what rate this species is declining globally. Further research on current threats is needed.
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| Astacus Pachypus / Caspian Crayfish |
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