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The American paddlefish (Polyodon spathula), also known as a Mississippi paddlefish, spoon-billed cat, or spoonbill, is a species of ray-finned fish. It is the last living species of paddlefish (Polyodontidae). This family is most closely related to the sturgeons; together they make up the order Acipenseriformes, which are one of the most ...
[11] [15] The jaws of the American paddlefish are distinctly adapted for filter feeding only. [5] They are ram suspension filter feeders with a diet that consists primarily of zooplankton, and occasionally small insects, insect larvae, and small fish. [5] Closeup of the head, showing the presence of electrorecepting organs (ampullae of Lorenzini)
Acipenseriformes / æsɪˈpɛnsərɪfɔːrmiːz / is an order of basal [1] ray-finned fishes that includes living and fossil sturgeons and paddlefishes (Acipenseroidei), as well as the extinct families Chondrosteidae and Peipiaosteidae. [2][3][4] They are the second earliest diverging group of living ray-finned fish after the bichirs.
A reclusive fish from the Ohio River is at the heart of little-known Hoosier cottage industry that produces thousands of pounds of caviar a year.
Unlike its relative the American paddlefish, which is a planktivorous filter feeder, the Chinese paddlefish was primarily piscivorous, mainly feeding on small to medium-sized fishes like anchovies , cyprinids (Coreius, Rhinogobio), gobies as well as bagrid catfish and bothid flounders. Shrimp and crab were also eaten.
Sturgeon. Sturgeon (from Old English styrġa ultimately from Proto-Indo-European * str̥ (Hx)yón - [1]) is the common name for the 28 species of fish belonging to the family Acipenseridae. The earliest sturgeon fossils date to the Late Cretaceous, and are descended from other, earlier acipenseriform fish, which date back to the Early Jurassic ...
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. However, some are landlocked in the Columbia River Drainage, Montana, and Lake Shasta in ...
The sturddlefish is a hybrid of the American paddlefish (Polyodon spathula) and the Russian sturgeon (Acipenser gueldenstaedtii), accidentally created by researchers in 2019 and announced in 2020. [2] Obtaining living hybrids through breeding individuals from different families is unusual, especially given that the two species' last common ...