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Acipenseriformes / æ s ɪ ˈ p ɛ n s ə r ɪ f ɔːr m iː z / 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 ...
Acipenser is a genus of sturgeons.With 17 living species (others are only known from fossil remains), it is the largest genus in the order Acipenseriformes.The genus is paraphyletic, containing all sturgeons that do not belong to Huso, Scaphirhynchus, or Pseudoscaphirhynchus, with many species more closely related to the other three genera than they are to other species of Acipenser.
An Atlantic sturgeon at the Aquarium du Québec. Rather than having true scales, the Atlantic sturgeon has five rows of bony plates known as scutes.Specimens weighing over 800 lb and nearly 15 ft in length have been recorded, but they typically grow to be 6–8 ft (1.8–2.4 m) and no more than 300 lb (140 kg).
Map of west coast of North America showing distribution of adult and subadult sDPS green sturgeon Map of California's Central Valley showing distribution of sDPS green sturgeon. The green sturgeon is the most widely distributed member of the sturgeon family Acipenseridae, and is also the most marine-oriented of the sturgeon species.
Critical habitat map for the Gulf sturgeon, 2003 Gulf sturgeon jumping on the Suwannee River, Florida. Large jumping sturgeons can inflict serious injuries to humans who get in the way. The Gulf sturgeon (Acipenser oxyrinchus desotoi) is a subspecies of sturgeon that lives in the Gulf of Mexico and some rivers draining into it. The Gulf ...
Acipenseriformes spp. (Except the species included in Appendix I) Adansonia grandidieri; Adelphobates spp. Adenia firingalavensis; Adenia olaboensis; Adenia subsessilifolia; Adonis vernalis; Agalychnis spp. Agave victoriae-reginae; Allobates femoralis; Allobates hodli; Allobates myersi; Allobates zaparo; Aloe spp. (Except the species included ...
Chinese sturgeon in Dalian Laohutan Ocean Park. Most sturgeon spawn in fresh water and migrate to salt water to mature. The Chinese sturgeon can be considered a large freshwater fish, although it spends part of its lifecycle in seawater, like the salmon, [9] except Chinese sturgeon spawn multiple times throughout their lives.
The Richard K. Yancey Wildlife Management Area, formerly the Red River/Three Rivers Wildlife Management Area, is a 70,872-acre (28,681 ha) [1] tract of protected area in lower Concordia Parish, Louisiana. The area is owned by the Louisiana Department of Wildlife and Fisheries and the U.S. Army Corps of Engineers (USACOE).