Stenodus leucichthys is a species of freshwater whitefish in the family Salmonidae. In the strict sense its natural distribution is restricted to the Caspian Sea basin, and it is known as beloribitsa. The beloribitsa is now considered extinct in the wild, but survives in cultured stocks. The nelma, a more widespread species of Eurasian and North America, is sometimes considered its subspecies.
The Black Sea sprat, Clupeonella cultriventris, is a small fish of the herring family, Clupeidae. It is found in the Black Sea and Sea of Azov and rivers of its basins: Danube, Dnister, Dnipro (Ukraine), Southern Bug, Don, Kuban. It has white-grey flesh and silver-grey scales. A typical size is 10 cm The life span is of up to 5 years. The peak of its spawning is in April and it can be found in enormous shoals in sea-shores, filled all-round coastal shallows, moving quickly back into the sea at a depth of 6–30 metres. Used for food; it has around 12% fat in flesh.
Arctic cisco, also known as omul Russian: Омуль, is an anadromous species of freshwater whitefish that inhabits the Arctic parts of Siberia, Alaska and Canada. It has a close freshwater relative in several lakes of Ireland, known as the pollan, alternatively regarded as conspecific with it, or as a distinct species.
Ferox trout is a variety of trout found in oligotrophic lakes/lochs of Ireland, England, Scotland and Wales. Ferox trout is a traditional name for large, piscivorous trout, which in Scotland feed largely on Arctic char. It has been argued to be a distinct species, being reproductively isolated from "normal" brown trout of the same lakes, particularly in Ireland. However, it is uncertain whether the ferox of different lakes are all of a single origin. This fish grows to a length of 80 centimetres (31 in) SL.
Coregonus confusus is a freshwater whitefish from Switzerland. It is also known by its native Swiss German common name, spelled pfärrit, pfarrig, and pfärrig. It was described as Coregonus annectens confusus by Victor Fatio in 1885 from syntypes which have been lost in 1902. The species is rare and only known with certainty from Lake Biel. There is also a possibility that it might occur in Lake Neuchâtel. It vanished from Lake Murten in the 1960s due to eutrophication and water level management.
Rutilus frisii, called the vyrezub, Black Sea roach, or kutum, is a species of fish in the family Cyprinidae, native to the basins of the Black Sea, Sea of Azov, and Sea of Marmara from the rivers of Bulgaria to western Transcaucasia and in Lake Iznik (Turkey).
The pigo is a species of freshwater fish in the roach genus Rutilus of the family Cyprinidae. The fish is native to northern Italy and Switzerland. It inhabits subalpine lakes of the northern Adriatic basin from the Livenza to the Po drainage, including Lakes Maggiore, Lugano, and Como.
Clupeonella is a genus of fish in the family Clupeidae. They are widespread in the fresh and brackish waters of the Caspian Sea and Black drainages.
The humpback whitefish, also referred to as the bottom whitefish, the Arctic whitefish or the pidschian, is a species of freshwater whitefish with a northern distribution. It is one of the members in the broader common whitefish complex, or the Coregonus clupeaformis complex. This fish lives in estuaries and brackish water near river mouths, in deltas and in slowly running rivers, in large lakes with tributaries, and floodplain lakes. It can migrate long distances upriver for spawning.
Coregonus trybomi is a freshwater whitefish in the family Salmonidae. It is a spring-spawning type of cisco, which probably has evolved from sympatric vendace independently in a number of Swedish lakes. Only one of those populations survives, and it is therefore considered Critically Endangered by the IUCN Red List. The status of Coregonus trybomi as a distinct species is however questionable. By Swedish authorities it is treated as a morphotype or ecotype, not an independent species. It was listed as "Data Deficient" in 2010 but excluded from the national red list in 2015.
Stenodus nelma, known alternatively as the nelma, sheefish, siifish, inconnu or connie, is a commercial species of freshwater whitefish in the family Salmonidae. It is widespread in the Arctic rivers from the Kola Peninsula eastward across Siberia to the Anadyr River and also in the North American basins of the Yukon River and Mackenzie River.
Salmo fibreni, or the Fibreno trout, is a freshwater salmonid fish, endemic to Lago di Posta Fibreno in central Italy.
Coregonus alpinus is a species of freshwater whitefish in the family Salmonidae. It is endemic to Lake Thun, in Switzerland's Interlaken region, where it is found in deep water. The maximum length recorded for this species is 25 centimetres (9.8 in). It feeds on chironomids and other bottom-dwelling invertebrates. It is known as the kropfer, a name also applied to the probably extinct species Coregonus restrictus.
Alburnus scoranza is a species of ray-finned fish in the genus Alburnus. it occurs only in the basins of Lake Skadar in Montenegro, Albania and Lake Ohrid the Republic of Macedonia.
Alburnus volviticus is a species of ray-finned fish in the genus Alburnus, that is endemic to Greece where it occurred in Lake Volvi and Lake Koronia, although it has now been extirpated from the latter.
The Volga undermouth or Volga nase is a species of cyprinid freshwater fish. This one lives in the Emba, Ural and Volga drainages of the Caspian Sea basin, and the Don River drainage of the Black Sea basin.
Coregonus maraena, referred to in English as the maraene, maraena whitefish, vendace, cisco, lake herring, lake whitefish or the whitefish, is a whitefish of the family Salmonidae that occurs in the Baltic Sea basin - in the sea itself and the inflowing rivers, and in several lakes as landlocked populations. It is found in Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Netherlands, Norway, Poland, Slovakia, Russia and Sweden. As of 2013, it has been listed as a vulnerable species by the IUCN and as endangered by HELCOM. It is an extremely important fish within the Baltic Sea ecosystem, both for population equilibrium and for the local diets of the surrounding human population. Due to a variety of factors, mostly overfishing, the maraena’s population dwindled to near-extinction levels. Thus, rampant repopulation was enacted to preserve this important fish.
The freshwater tyulka is a species of fish in the herring family Clupeidae. It is found in the Caspian Sea watersheds, including the lower reaches of the rivers Volga and Ural. It was introduced to the Don River basin and is also invasive upstream in the Volga drainage. It is a small freshwater pelagic fish, up to 10 cm maximal length, inhabiting large lakes and reservoirs, and breeding in open water. Earlier it was considered to be a part of the species Clupeonella cultriventris.
Clupeonella muhlisi is a species of clupeid fish endemic to Lake Uluabat in Turkey, linked to the Sea of Marmara.
Coregonus wartmanni is a freshwater fish of the family Salmonidae found in Lake Constance.
