Beluga (sturgeon) & Caspian Sea - Unionpedia, the concept map

Alosa

Alosa is a genus of fish, the river herrings, in the family Alosidae.

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Black Sea

The Black Sea is a marginal mediterranean sea lying between Europe and Asia, east of the Balkans, south of the East European Plain, west of the Caucasus, and north of Anatolia.

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Caspian seal

The Caspian seal (Pusa caspica, syn. Phoca caspica) is one of the smallest members of the earless seal family and unique in that it is found exclusively in the brackish Caspian Sea.

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Clupeidae

Clupeidae is a family of clupeiform ray-finned fishes, comprising, for instance, the herrings and sprats.

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Clupeonella

Clupeonella is a genus of fish in the family Clupeidae.

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Common roach

The roach, or rutilus roach (Rutilus rutilus), also known as the common roach, is a fresh- and brackish-water fish of the family Cyprinidae, native to most of Europe and western Asia.

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Cyprinidae

Cyprinidae is a family of freshwater fish commonly called the carp or minnow family, including the carps, the true minnows, and their relatives the barbs and barbels, among others.

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Eurasian carp

The Eurasian carp or European carp (Cyprinus carpio), widely known as the common carp, is a widespread freshwater fish of eutrophic waters in lakes and large rivers in Europe and Asia.

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Gobiidae

Gobiidae or gobies is a family of bony fish in the order Gobiiformes, one of the largest fish families comprising more than 2,000 species in more than 200 genera.

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List of largest fish

Fish vary greatly in size.

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Mediterranean Sea

The Mediterranean Sea is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean Basin and almost completely enclosed by land: on the north by Southern Europe and Anatolia, on the south by North Africa, on the east by the Levant in West Asia, and on the west almost by the Morocco–Spain border.

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Overfishing

Overfishing is the removal of a species of fish (i.e. fishing) from a body of water at a rate greater than that the species can replenish its population naturally (i.e. the overexploitation of the fishery's existing fish stock), resulting in the species becoming increasingly underpopulated in that area.

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Pleistocene

The Pleistocene (often referred to colloquially as the Ice Age) is the geological epoch that lasted from to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations.

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Roe

Roe, or hard roe, is the fully ripe internal egg masses in the ovaries, or the released external egg masses, of fish and certain marine animals such as shrimp, scallop, sea urchins and squid.

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Sea of Azov

The Sea of Azov is an inland shelf sea in Eastern Europe connected to the Black Sea by the narrow (about) Strait of Kerch, and sometimes regarded as a northern extension of the Black Sea.

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Sterlet

The sterlet (Acipenser ruthenus) is a relatively small species of sturgeon from Eurasia native to large rivers that flow into the Black Sea, Azov Sea, and Caspian Sea, as well as rivers in Siberia as far east as Yenisei.

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Sturgeon

Sturgeon (from Old English styrġa ultimately from Proto-Indo-European *str̥(Hx)yón-) is the common name for the 28 species of fish belonging to the family Acipenseridae.

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Volga

The Volga (p) is the longest river in Europe. Situated in Russia, it flows through Central Russia to Southern Russia and into the Caspian Sea. The Volga has a length of, and a catchment area of., Russian State Water Registry It is also Europe's largest river in terms of average discharge at delta – between and – and of drainage basin. It is widely regarded as the national river of Russia. The hypothetical old Russian state, the Rus' Khaganate, arose along the Volga. Historically, the river served as an important meeting place of various Eurasian civilizations. The river flows in Russia through forests, forest steppes and steppes. Five of the ten largest cities of Russia, including the nation's capital, Moscow, are located in the Volga's drainage basin. Because the Volga drains into the Caspian Sea, which is an endorheic body of water, the Volga does not naturally connect to any of the world's oceans. Some of the largest reservoirs in the world are located along the Volga River. The river has a symbolic meaning in Russian culture – Russian literature and folklore often refer to it as Волга-матушка Volga-Matushka (Mother Volga).

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Zander

The zander (Sander lucioperca), sander or pikeperch, is a species of ray-finned fish from the family Percidae, which also includes perch, ruffe and darter.

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