| 词条 | Umpqua pikeminnow |
| 释义 |
| name = Umpqua pikeminnow | image = | status = LC | status_system = IUCN3.1 | status_ref = [1] | taxon = Ptychocheilus umpquae | display_parents = 3 | authority = Snyder, 1908 | synonyms = }} The Umpqua pikeminnow (Ptychocheilus umpquae) is a large cyprinid fish endemic to Oregon. It is native to the Umpqua and Siuslaw river drainages.[2] DescriptionThe Umpqua pikeminnow usually has 60 to 63 scales between the head and dorsal fin. It usually has around 66 to 81 scales along its lateral line. It usually has 9 rays on its dorsal fin and 8 rays on its anal fin. They can reach 44 cm (17.5 in) in total length, but are more often 31 cm (12.2 in).[3][4] Distribution and habitatThe fish are found in the Northwest United States, usually along the Umpqua and Siuslaw river drainages,[3] as well as in the Rogue River.[5] The fish inhabit the pools or sluggish runs of small rivers and creeks.[3] References1. ^NatureServe. 2013. Ptychocheilus umpquae. The IUCN Red List of Threatened Species 2013: e.T202360A18235249. https://dx.doi.org/10.2305/IUCN.UK.2013-1.RLTS.T202360A18235249.en. Downloaded on 31 December 2017. {{Taxonbar|from=Q6405812}}{{-}}{{Leuciscinae-stub}}2. ^{{FishBase species |genus= Ptychocheilus |species= umpquae | month = November| year = 2014}} 3. ^1 2 {{Cite book|url=https://books.google.com/books/about/Peterson_Field_Guide_to_Freshwater_Fishe.html?id=rFTqmdDqn-wC|title=Peterson Field Guide to Freshwater Fishes of North America North of Mexico|last=Page|first=Lawrence M.|last2=Burr|first2=Brooks M.|date=2011|publisher=Houghton Mifflin Harcourt|isbn=9780547242064|language=en}} 4. ^{{Cite web|url=https://www.fishbase.us/summary/Ptychocheilus-umpquae.html|title=Ptychocheilus umpquae summary page|website=FishBase|language=en|access-date=2018-12-25}} 5. ^{{Cite web|url=http://mailtribune.com/news/since-you-asked/pikeminnow-have-long-been-in-the-rogue-river|title=Pikeminnow have long been in the Rogue River|last=|first=|date=2011-08-21|website=Mail Tribune|archive-url=https://web.archive.org/web/20181225223805/http://mailtribune.com/news/since-you-asked/pikeminnow-have-long-been-in-the-rogue-river|archive-date=2018-12-25|dead-url=|access-date=2018-12-25}} 5 : Ptychocheilus|Endemic fauna of Oregon|Fish of the Western United States|Freshwater fish of the United States|Fish described in 1908 |
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