Iphigenella shablensis (Carausu, 1943)

Iphigenella shablensis image Synonyms: Gammarus shablensis Carausu, 1943; Shablogammarus shablensis Carausu, 1943.

Common names: Bulg: Mamarets; Russ: Bokoplav.

Order (Scientific): AMPHIPODA.

Family (Scientific): GAMMARIDAE.

Taxonomic descriptions: Dimensions - length male 3 - 5 mm, female 2.5 - 3.5 mm. The flagellum of the antenna is 2.5 times as long as the base. The gnatopodes are oval. The palmar edge is askew. The third gnatopodes are lengthened. The coaxal plates are high. The basal segment of the fifth, sixth and seventh pereiopodes are broadened..

Iphigenella shablensis arealIUCN Status:
    World level: VU
    Black Sea Regional level: VU
    Subregion level: VU

Distribution: Bulgarian - Shabla lake, Dnepr river, Caspian Sea.

Habitats type, Critical habitats, Limiting factors: Brackish and fresh waters, salinity increase, pollution.

Biology: Widely distributed in the middle and eastern part of Shabla lake, especially in the zone with Dreissena polymorpha. It is found under stones, sand bottoms and among macrophytes. Sometimes there are up to 15,400 specimen/m2 . A mass development occurs in spring.

Population trends: Stable population in the reserve Shabla lake.

Threats: Pollution caused by the urbanization and uncontrolled stockfarming.

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

Conservation measures proposed: Formation of protected territories and reserves in the lakes’ surroundings and in the humid zones.


  1. Carausu, S. 1943. Amphipodes de Roumanie. I. Gammarides de types caspien. Bull. Institute de cercet. Pisc. Al Romanei.
  2. Carausu, S., E. Dobreanu, C. Manolache, 1955. Amphipoda forme solmastre si de apadulce. Fauna R.P.R. vol. IV. Fasc. 4.
  3. 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 Musé e, vol. XXXV, pp. 164-168.
  4. Morduhaj-Boltovskoj, F. 1969. Guide book to the fauna of Black and Azov Sea. Crustacea, Amphipoda.
  5. Valkanov, A. 1957. Katalog unserer Schwarzmeerfauna. Arbeiten aus der Biologischen Meeresstation in Varna Bulgarien. Bd. XIX.

Compiled by: S.Andreev.