The ratan goby (''Ponticola ratan'') is a species of goby native to

brackish Brackish water, sometimes termed brack water, is water occurring in a natural environment that has more salinity than freshwater, but not as much as seawater. It may result from mixing seawater (salt water) and fresh water together, as in estuari ...

and marine waters of the

Black Sea The Black Sea is a marginal mediterranean sea of the Atlantic Ocean lying between Europe and Asia, east of the Balkans, south of the East European Plain, west of the Caucasus, and north of Anatolia. It is bounded by Bulgaria, Georgia, Roma ...

, the

Sea of Azov The Sea of Azov ( Crimean Tatar: ''Azaq deñizi''; russian: Азовское море, Azovskoye more; uk, Азовське море, Azovs'ke more) is a sea in Eastern Europe connected to the Black Sea by the narrow (about ) Strait of Kerch, ...

and the

Caspian Sea The Caspian Sea is the world's largest inland body of water, often described as the world's largest lake or a full-fledged sea. An endorheic basin, it lies between Europe and Asia; east of the Caucasus, west of the broad steppe of Central Asia ...

. In the

it is presented by

subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...

''Ponticola ratan goebeli''. It occurs in inshore waters, inhabiting areas with stone or gravel substrates. This species can reach a length of TL.

References

External links

* http://fish.kiev.ua/pages/ukrfishm/ukrfishm79.htm * http://www.grid.unep.ch/bsein/redbook/txt/neogob-r.htm?%20PISCES Ponticola Fish of Europe Fish of the Caspian Sea Fish of the Black Sea Fish described in 1840 Taxa named by Alexander von Nordmann {{Gobiidae-stub