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A 1000-kg, 4.17-m-long beluga fish from the Volga River (National Museum of Tatarstan, Kazan, Russia) Among all extant bony fishes, the beluga sturgeon rivals the ocean sunfish (Mola sp.) as the most massive fish and is the second-longest bony fish after the giant oarfish (Regalecus glesne). It is the largest freshwater fish in the world.
A 3.7 m (12 ft)-long, 500 kg (1,100 lb), 70 year old Kaluga fish which stored around 4 million eggs The Amur river, an important habitat for the Kaluga sturgeon. The kaluga sturgeon is a massive fish, also known as the "river beluga". It has a triangular head with several bony plates.
This is a list of freshwater fish pursued by recreational anglers. Alligator gar; American paddlefish; Amur catfish; Amur pike; Arapaima; Arctic grayling; Asian arowana; Asp (fish) Atlantic salmon; Atlantic sturgeon; Australian bass; Australian grayling; Bagarius yarrelli; Barramundi; Basa (fish) Bayad; Beluga (sturgeon) Biara; Black arowana ...
Different Types of Caviar. There are different types of caviar, including: Almas: This gold colored caviar is harvested from albino Iranian Beluga sturgeon that are 60- to 100-years-old.This ...
The largest sturgeon on record was a beluga female captured in the Volga Delta in 1827, measuring 7.2 m (23 ft 7 in) long and weighing 1,571 kg (3,463 lb). Most sturgeons are anadromous bottom-feeders, migrating upstream to spawn but spending most of their lives feeding in river deltas and estuaries.
The beluga sturgeon can take up to 20 years to reach maturity. The fish harvested for caviar are often nearly 900 kg (2,000 lb). The eggs themselves are the largest of the commonly used roes, and range in color from dark gray (almost black) to light gray, with the lighter colors coming from older fish, and being the most valued.
Hyrcanogobius bergi — Volga dwarf goby; the smallest Russian fish ; Knipowitschia. Knipowitschia caucasica — Caucasian dwarf goby; Knipowitschia longecaudata — Longtail dwarf goby; Mesogobius. Mesogobius batrachocephalus — Knout goby; Neogobius. Neogobius fluviatilis — Monkey goby; Neogobius melanostomus — Round goby
The wels is the largest freshwater fish in Europe and Western Asia, only exceeded by the anadromous Atlantic and beluga sturgeon. Most adult wels catfish are about 1.3–1.6 m (4 ft 3 in – 5 ft 3 in) long; fish longer than 2 m (6 ft 7 in) are a rarity.