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Sturgeon are recognizable for their elongated bodies, flattened rostra, distinctive scutes and barbels, and elongated upper tail lobes. The skeletal support for the paired fins of ray-finned fish is inside the body wall, although the ray-like structures in the webbing of the fins can be seen externally.
The kaluga sturgeon is a massive fish, also known as the "river beluga". It has a triangular head with several bony plates. Its body is an elongated fusiform body with five rows of bony scutes: dorsal with 10–16 beetles (the first is largest), two laterals (32–46 scutes), and two ventral (8–12 scutes) between rows of small bony scutes ...
White sturgeon (Acipenser transmontanus) is a species of sturgeon in the family Acipenseridae of the order Acipenseriformes.They are an anadromous (migratory) fish species ranging in the Eastern Pacific; from the Gulf of Alaska to Monterey, California.
The lake sturgeon uses its elongated, spade-like snout to stir up the substrate and sediments on the beds of rivers and lakes to feed. Four sensory organs hang near its mouth to help the sturgeon locate bottom-dwelling prey. Lake sturgeons can grow to a large size for freshwater fish, topping 7.25 ft (2.2 m) long and 240 lb (108 kg). [8]
The pallid sturgeon's snout and head are longer than that of the shovelnose sturgeon. [17] In both species, the mouth is located well back from the tip of the snout. Lacking teeth, they use their extendable mouths to suck up small fish, mollusks, and other food sources from river bottoms.
Conditions improved over the next few years, including a large harvest of 1,251 sturgeon in 1972, but fell under bad luck again in 1973, when the eight-fish harvest tied with 1969's.
Sep. 15—NEAR WALHALLA, N.D. — The North Dakota Game and Fish Department stocked 1,000 fingerling lake sturgeon into the Pembina River this week as part of ongoing efforts to restore the ...
The wedge-shaped head of the European sea sturgeon ends in a long point. There are many sensitive barbels on the facial area. The dorsal fins are located very far back on the body. Five longitudinal lines of large osseous plates are found on the body of the fish. The stomach is yellow and the back is a brownish grey. [citation needed]