Iowa Fish Atlas

Bluntnose minnow-Pimephales notatus

Native: Yes

State Rank: S5

ITIS Code: 163516          

National Rank: N5           

Global Rank: G5

Modeled By: Anna Loan-Wilsey

State Range:

The bluntnose minnow is one of the most common and generally distributed fishes in Iowa, second in collections only to the creek chub. It is rare in collections from the Mississippi River and with the exceptions of the Lower Big Sioux, Little Sioux, Rock, and Floyd River watersheds, is completely absent from the Missouri River drainage (Harlan et al. 1987).

Habitat Affinities:

The bluntnose minnow can be in all types of waters but is most abundant in quiet pools and backwaters of moderate size streams and lakes having clear, warm water, permanent flow, gravel bottoms, and some aquatic vegetation. (Becker 1983; Pflieger 1997; Robison and Buchanan 1988). In Illinois, it is found almost everywhere except in swamps or regions of extremely high pollution (Smith 1979).  Trautman (1981) found that the bluntnose minnow was most abundant in waters draining lands rich in organic matter and high in phytoplankton populations.  In Iowa, the bluntnose minnow prefers small, clear creeks and shows an intolerance of high turbidity (Harlan et al. 1987).

Predictive Model(s):

Statewide Model: by 8-digit HU [Decision Tree Analysis n=1695]

The distribution is based upon existing collection records.

((("SOIL_TEXT" > 3 AND "SOIL_TEXT" <= 4) AND "LINKR" <= 5 AND

"MINELEVR" <= 3) OR

(( "SOIL_TEXT" > 4 AND "SOIL_TEXT" <= 6) AND "STRAHLER" <= 1) OR

(("SOIL_TEXT" > 4 AND "SOIL_TEXT" <= 6) AND ("STRAHLER" > 1 AND

"STRAHLER" <= 3) AND "LINKR" <= 4) OR

(("SOIL_TEXT" > 4 AND "SOIL_TEXT" <= 6) AND "STRAHLER" > 3 AND

"MAXELEVR" <= 3 AND "SDISCR_11C" <= 5) OR

(("SOIL_TEXT" > 4 AND "SOIL_TEXT" <= 6) AND "STRAHLER" > 3 AND

"MAXELEVR" > 3) OR

( ("SOIL_TEXT" > 6 AND "SOIL_TEXT" <= 8) AND "LINKR" <= 6 AND "DLINKR"

<= 7) OR

(("SOIL_TEXT" > 6 AND "SOIL_TEXT" <= 8) AND "LINKR" > 6))

Mississippi River Model:

The distribution is based upon existing collection records and professional review.

 ("pool" >= 'S08' AND "pool" <= 'S19')

Overall Prediction:

((("SOIL_TEXT" > 3 AND "SOIL_TEXT" <= 4) AND "LINKR" <= 5 AND

"MINELEVR" <= 3) OR

(( "SOIL_TEXT" > 4 AND "SOIL_TEXT" <= 6) AND "STRAHLER" <= 1) OR

(("SOIL_TEXT" > 4 AND "SOIL_TEXT" <= 6) AND ("STRAHLER" > 1 AND

"STRAHLER" <= 3) AND "LINKR" <= 4) OR

(("SOIL_TEXT" > 4 AND "SOIL_TEXT" <= 6) AND "STRAHLER" > 3 AND

"MAXELEVR" <= 3 AND "SDISCR_11C" <= 5) OR

(("SOIL_TEXT" > 4 AND "SOIL_TEXT" <= 6) AND "STRAHLER" > 3 AND

"MAXELEVR" > 3) OR

( ("SOIL_TEXT" > 6 AND "SOIL_TEXT" <= 8) AND "LINKR" <= 6 AND "DLINKR"

<= 7) OR

(("SOIL_TEXT" > 6 AND "SOIL_TEXT" <= 8) AND "LINKR" > 6))

OR ("pool" >= 'S08' AND "pool" <= 'S19')

Literature Cited:

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Pflieger, W.L.  1997.  The fishes of Missouri.  Missouri Department of Conservation, Jefferson City, Missouri.  372 pp.

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Trautman, M.B.  1981.  The fishes of Ohio.  Revised Edition.  Ohio State University Press in collaboration with the Ohio Sea Grant Program Center for Lake Erie Area Research,  Columbus, Ohio.  782 pp.

Data Sources:

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Additional References:

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Photo Credits:

Upper Left:       Photo courtesy of Konrad P. Schmidt, copyright Konrad P. Schmidt.

Upper Right:     Photo courtesy of the Ohio Department of Natural Resources. http://www.ohiodnr.com/default.htm