The '''Atlantic sturgeon''' (''Acipenser oxyrinchus oxyrinchus'') is a member of the family [[Acipenseridae]] and along with other sturgeon it is sometimes considered a [[living fossil]]. The Atlantic sturgeon is one of two [[subspecies]] of ''[[Acipenser oxyrinchus|A. oxyrinchus]]'', the other being the [[Gulfgulf sturgeon]] (''A. o. desotoi''). The main range of the Atlantic sturgeon is in eastern North America, extending from [[New Brunswick]], Canada, to the eastern coast of [[Florida]], United States. A [[Disjunct distribution|disjunct]] population occurs in the [[Baltic region]] of Europe (today only through a reintroduction project). The Atlantic sturgeon was in great abundance when the first European settlers came to North America, but has since declined due to [[overfishing]], [[water pollution]], and habitat impediments such as dams.<ref>{{Cite web|last=Fisheries|first=NOAA|date=2021-01-19|title=Atlantic Sturgeon {{!}} NOAA Fisheries|url=https://www.fisheries.noaa.gov/species/atlantic-sturgeon|access-date=2021-05-14|website=NOAA|language=en}}</ref> It is considered threatened, endangered, and even locally extinct in many of its original [[habitat]]s. The fish can reach 60 years of age, {{convert|15|ft|m|abbr=on}} in length and over {{convert|800|lb|kg|abbr=on}} in weight.<ref>{{cite book | last1 = Schultz | first1 = Ken | title = Ken Schultz's Field Guide to Freshwater Fish | publisher = John Wiley & Sons | year = 2004 | isbn = 978-0-471-62865-1}}</ref>
