bluntnose minnow
{{Short description|Species of fish}}
:"Bluntnose minnows" is also used for the genus Pimephales as a whole.
{{Speciesbox
| status = LC
| status_system = IUCN3.1
| image = Pimephales notatus - Stumpfnasen-Zwergdöbel 192957406.jpg
| taxon = Pimephales notatus
| display_parents = 3
| authority = (Rafinesque, 1820)
| synonyms = {{Specieslist
| Minnilus notatus | Rafinesque, 1820
| Hybopsis haematurus | Cope, 1867
| Hybopsis tudetanus | Cope, 1867
| Hyborhynchus superciliosus | Cope, 1868
| Spinicephalus fibulatus | Lesueur, 1896
}}
| synonyms_ref = {{Cof genus|genus=Pimephales|access-date=18 March 2025}}
}}
The bluntnose minnow (Pimephales notatus) is a species of freshwater ray-finned fish belonging to the family Leuciscidae, the shiners, daces and minnows. Its natural geographic range extends from the Great Lakes south along the Mississippi River basin to Louisiana, and east across the Midwestern United States to New York State. The bluntnose is very ubiquitous, and may be the most common freshwater fish in the Eastern U.S.Page, Lawrence M. and Brooks M. Burr (1991), Freshwater Fishes, p. 129–130, Houghton Mifflin, New York, NY. {{ISBN|0-395-91091-9}}
Description
Bluntnose minnows are commonly {{convert|6.5|cm|in|abbr=on}} long, with a maximum length of {{convert|11|cm|in|abbr=on}}. On the first two or three dorsal rays are dark pigmented spots. The scales between the head and the dorsal fin are noted to be smaller than the rest of the scales on the body.{{cite web|title=Bluntnose|url=http://www.outdooralabama.com/fishing/freshwater/fish/other/minnow/bluntnose/|publisher=Alabama Department of Conservation and Natural Resources|access-date=20 April 2012|url-status=dead|archive-url=https://web.archive.org/web/20120211104026/https://www.outdooralabama.com/Fishing/freshwater/fish/other/minnow/bluntnose/|archive-date=11 February 2012}} They have a rounded head and a terminal mouth, although the snout hangs a little bit over the mouth. The dark coloring on the edges of the scales cause a cross-hatched look along the body. The scales on these fish are cycloid scales, a type of leptoid scale. It is possible to find the age of a fish from the rings on the scales. The lateral line of a bluntnose minnow runs from its head to tail, ending in a black spot that makes them distinguishable from the fathead minnow.{{cite web|title=Bluntnose Minnow|url=http://www.dnr.state.oh.us/Home/species_a_to_z/SpeciesGuideIndex/bluntnoseminnow/tabid/6566/Default.aspx|publisher=Ohio Department of Natural Resources}} These minnows have a pale olive upper body (above the lateral line) and a silvery lower body (below the lateral line), with silvery-blue scales near the lateral line.{{cite web|last=Rook|first=Earl|title=Pimephales notatus Bluntnose Minnow|url=http://www.rook.org/earl/bwca/nature/fish/pimephalesnot.html|publisher=Rook|access-date=19 April 2012|url-status=dead|archive-url=https://web.archive.org/web/20101128081121/http://rook.org/earl/bwca/nature/fish/pimephalesnot.html|archive-date=28 November 2010}}
Distribution
The bluntnose minnow can be found in North America, in the Hudson Bay and Mississippi River basins from southern Quebec to southern Manitoba, Canada to Louisiana, United States. They are also found from the Saint Lawrence River in Quebec to the Roanoke River on the east coast of United States.{{cite web|title=Pimephales notatus Bluntnose minnow|url=http://fishbase.org/summary/Pimephales-notatus.html|publisher=Fish Base|access-date=19 April 2012}} There are also many non-indigenous populations found in Connecticut, Georgia, Maryland, Massachusetts, New York, Ohio, South Dakota, Utah, Virginia, West Virginia, and Michigan, thought to have been introduced by bait bucket release or stock contamination.{{cite web|title=Pimephales notatus (Rafinesque 1820)|url=https://nas.er.usgs.gov/queries/factsheet.aspx?SpeciesID=620|publisher=USGS|access-date=20 April 2012|author=Leo Nico|author2=Matt Neilson}} Bluntnose minnows are thought to be the most abundant freshwater fish in the eastern part of the country.
Habitat
Bluntnose minnows can be found in lakes, rivers, ponds and streams, showing a preference for shallow, clear water with a sandy bottom. Their habitats range from headwater bogs, swamps, and springs to rivers, ponds, and lakes. Sometimes, up to a dozen species of minnows can be found in a single stream of moderate size. They can be found swimming in large groups or alone.{{cite web|title=Minnow Family Cyprinidae|url=http://fish.dnr.cornell.edu/nyfish/Cyprinidae/cyprinidae.html|publisher=Cornell DNR|access-date=3 May 2012|url-status=dead|archive-url=https://web.archive.org/web/20120417200209/http://fish.dnr.cornell.edu/nyfish/Cyprinidae/cyprinidae.html|archive-date=17 April 2012}}
Diet
These fish prefer to feed on aquatic insects, algae, diatoms, aquatic insect larvae, and small crustaceans called entomostracans. Occasionally they will eat fish eggs or small fish.{{cite web|last=Parr|first=Cynthia Sims|title=Bluntnose Minnow|url=http://www.biokids.umich.edu/critters/Pimephales_notatus/|publisher=University of Michigan|access-date=1 May 2012}}
Life cycle
Bluntnose minnows spawn from early spring to midsummer, depending on their habitat. They attach their eggs under stones in depressions they have dug. During the mating season, the heads of the males will become darker and their bodies bluish. They also develop three rows of nuptial tubercles (bumps) on their heads. Eggs hatch in eight to fourteen days.
Etymology
The genus name Pimephales means fat head, the specific epithet notatus means marked or spotted.
References
{{Reflist}}
{{Taxonbar|from=Q3046026}}
{{Authority control}}
Category:Cyprinid fish of North America
Category:Fish described in 1820
Category:Taxa named by Constantine Samuel Rafinesque