A new species of Gudgeon has been described from the River Chornaya in the Ukraine.
The fish, which has been named Gobio delyamurei, was described by Jorg Freyhof and Alexander Naseka in the latest issue of the journal Ichthyological Exploration of Freshwaters.
G. delyamurei was found in a short stretch of western Crimea\'s River Chornaya, and is believed to be at risk of extinction, as large quantities of water are being removed from the river for irrigation.
Unlike the other Gobio species from the Black and Caspian Sea region, the new species has a short barbel which reaches to the anterior margin of the eye or just in front. It also has scales between the pectoral fins and mature males have dark grey colouration and dusky fins.
More than one gudgeonMany people have previously considered Gudgeon to be members of a single variable species, or as subspecies of Gobio gobio, however, recent evidence has suggested that the genus includes a number of distinct species.
We reported the description of a new species, Gobio kubanicus, in September 2004, after studies on the range of Gobio gobio, the common Gudgeon, showed that the range was not as previously believed.
Scientists now believe that the true Gudgeon, G. gobio, is restricted to a smaller area than previously believed. This is thought to extend from Great Britain, southern
Sweden, the basins of the North, Baltic and White seas to the Volga.
For more information on the new Gudgeon species see the paper: Freyhof, J and AM Naseka (2005) - Gobio delyamurei, a new gudgeon from Crimea, Ukraine (Teleostei: Cyprinidae). Ichthyol. Explor. Freshwaters, Vol. 16, No. 4, pp. 331-338, 4 fi gs., 1 tab., December 2005.