The shovelnose sturgeon (Scaphirhynchus platorynchus)[5] is the smallest species of freshwater sturgeon native to North America. It is often called hackleback, sand sturgeon, or switchtail. Switchtail refers to the long filament found on the upper lobe of the caudal fin (often broken off as adults). Shovelnose sturgeon are the most abundant sturgeon found in the Missouri River and Mississippi River systems, and were formerly a commercially fished sturgeon in the United States of America (Pflieger 1997). In 2010, they were listed as threatened under the U.S. Endangered Species Act due to their resemblance to the endangered pallid sturgeon (S. albus),[6] with which shovelnose sturgeon are sympatric.[6][7]
^Phelps, Q.; Webb, M. (2022). "Scaphirhynchus platorynchus". IUCN Red List of Threatened Species. 2022: e.T19943A81762958. doi:10.2305/IUCN.UK.2022-1.RLTS.T19943A81762958.en. Retrieved 6 March 2023.
^"Appendices | CITES". cites.org. Retrieved 14 January 2022.
^Froese, R.; Pauly, D. (2017). "Acipenseridae". FishBase version (02/2017). Retrieved 18 May 2017.
^"Acipenseridae" (PDF). Deeplyfish- fishes of the world. Retrieved 18 May 2017.
^ abRafinesque, C. S. (1820). Ichthyologia Ohiensis : or, Natural history of the fishes inhabiting the river Ohio and its tributary streams, preceded by a physical description of the Ohio and its branches. Lexington, Ky: Printed for the author by W. G. Hunt.
^ ab75 FR 53598
^"Shovelnose Sturgeon (Scaphirhynchus platorynchus)" (PDF). Onalaska, Wisconsin: La Crosse Fishery Resource Office, U.S. Fish and Wildlife Service. 16 May 2001. Archived from the original (PDF) on 25 January 2022.
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