Dikerogammarus vilosus (Sovinskii, 1894)

Synonyms: Gammarus marinus v. vilosa Sovinskii 1894.

Common names: Bulg: Mamarets; Russ: Bokoplav.

Order (Scientific): AMPHIPODA.

Family (Scientific): GAMMARIDAE.

Taxonomic descriptions: Dimensions - length male 10-21 mm, female 8-16 mm. The first and the second segment of the urosom with strong developed swellings with prickles. The third uropod with long exopodit with pinnate bristles and prickles. Endopodits very small.

Dikerogammarus vilosus arealIUCN Status:
    World level: VU
    Black Sea Regional level: VU
    Subregion level: VU

Distribution: The Black Sea and the Azov Sea coast.

Habitats type, Critical habitats, Limiting factors: Brackish and fresh waters, coastal lakes, swamps and rivers, salinity increasing, pollution.

Biology: Inhabits the coastal zone, under stones, sand bottom, among macrophytes.

Population trends: Decreasing trend.

Threats: Pollution caused by urbanization and uncontrolled stockfarming.

Conservation measures taken: The Shabla lake is the only declare reserve.

Conservation measures proposed: Establishment of reserves and protected territories of lakes, humid zones.

References:

  1. Birstein, J., Vinogradova, A. Kondakova, M. Kun, V. Astahova, N. Romanova 1968. Atlass of invertebrate fauna of Caspyan Sea.
  2. Carausu, S. 1943. Amphipodes de Roumanie. I. Gammarides de types caspien. Bull. Institute de cercet. Pisc. Al Romanei.
  3. Carausu, S., E. Dobreanu, C. Manolache, 1955. Amphipoda forme solmastre si de apadulce. Fauna R.P.R. vol. IV. Fasc. 4.
  4. Kaneva-Abadjieva, V. 1972. A Contribution to the Study of the Amphipodus Fauna in the Black-Sea-Coast Lakes and River Mouths (in Bulgarian). Bulletin de l’Institut de Zoologie et Musée, vol. XXXV, pp. 164-168.
  5. Morduhaj-Boltovskoj, F. 1969. Guide book to the fauna of the Black Sea and Azov Sea. Crustacea, Amphipoda.
  6. Sowinskyi 1894. Les Crustacés de la Mer d’Azoph (en russe). Mém. Soc. Nat. Kiev, vol.XIII, No.1-2.
  7. Valkanov, A. 1957. Katalog unserer Schwarzmeerfauna. Arbeiten aus der Biologischen Meeresstation in Varna Bulgarien. Bd. XIX.

Compiled by: S.Andreev.