- Ponticola kessleri (Günther, 1861)
- Gobius kessleri Günther, 1861
- Gobius platycephalus Kessler, 1857
No status defined
Value of species
Recently transferred from Neogobius to Ponticola. P. gorlap from Caspian Sea, often treated as a subspecies of P. kessleri, is a distinct species.
Black Sea basin: Danube, Dniestr, South Bug and Dniepr drainages. Since late 1990s, range regularly expanding upstream in Danube drainage, in 1999 recorded for first time in Germany (2,400 km from sea) and in 2005 in upper reaches of Rhine drainage close to canal connecting it with Danube. Meanwhile has colonized the lower and middle reaches of the Rhine and is slowly invading the upper Rhine. In Dniepr up to Kiev. In Dniepr up to Kiev. Absent in Azov Sea basin.
Habitat: Mostly in freshwater and brackish water with very low salinity (less than 2). Estuaries, brackish- and fresh-water lagoons and lakes, large rivers, harbours, on rock bottom. Mostly found on well vegetated or rock bottom in still waters as well as in rapids.
Biology: Spawns for the first time at two years. Spawns in March-May. Adhesive eggs deposited on stones, shells and aquatic plants. Males guard eggs until hatching. Feeds on a wide variety of invertebrates. Larger individuals take mostly small fish.
- Соколов Н.Ю. Каталог колекції круглоротих і риб Державного природознавчого музею НАН України // Наукові записки Державного природознавчого музею. – Львів, 2004. – Т.19. – С. 15-28.