Iowa Fish Atlas

Native: Yes

State Rank: S5

ITIS Code: 168141          

National Rank: N5           

Global Rank: G5

Modeled By: Anna Loan-Wilsey

State Range:

The bluegill is Iowa’s most common and widely distributed member of the sunfish family and can be found in nearly all waters throughout the state (Harlan et al. 1987).  The bluegill is extremely abundant in the backwater and sloughs of the Mississippi River. Although it has been documented throughout the Little Sioux River watershed as well as in the Missouri River, the bluegill is not common in western Iowa streams (Harlan et al. 1987). 

Habitat Affinities:

Aside from farm ponds and impoundments, the largest populations of bluegill are in warm pools and backwaters of low-gradient streams, and particularly in overflow pools along floodplains with some aquatic vegetation or other cover (Etnier and Starnes 1993; Trautman 1981). Pflieger (1997) notes that stream populations may be sustained by continuous escapement from impoundments. The bluegill is intolerant of continuous high-turbidity, siltation (Clay 1975; Pflieger 1971; Robison and Buchanan 1988) and flowing waters (Douglas 1974; Trautman 1981), although in Wisconsin, bluegill were often found in moderately swift waters of streams (Becker 1983).

Predictive Model(s):

Statewide Model: by 8-digit HU [Decision Tree Analysis n=573]

The distribution is based upon existing collection records.

((("DSIZE_CODE" > 1 AND "DSIZE_CODE" <= 2) AND "MAXELEVR" <= 3 AND

"SUBREGION_" <= 1) OR

(("DSIZE_CODE" > 1 AND "DSIZE_CODE" <= 2) AND "MAXELEVR" <= 3 AND

"SUBREGION_" > 1 AND "SOIL_TEXT" > 8) OR

(("DSIZE_CODE" > 1 AND "DSIZE_CODE" <= 2) AND "MAXELEVR" > 3 AND

("SOIL_TEXT" > 1 AND "SOIL_TEXT" <= 3)) OR

(("DSIZE_CODE" > 1 AND "DSIZE_CODE" <= 2) AND "MAXELEVR" > 3 AND

"SOIL_TEXT" > 3 AND "MINELEVR" <= 2) OR

(("DSIZE_CODE" > 1 AND "DSIZE_CODE" <= 2) AND "MAXELEVR" > 3 AND

"SOIL_TEXT" > 3 AND "MINELEVR" > 2 AND "SSIZE_CODE" > 1 AND

"GRADRCHR" > 7) OR

(( "DSIZE_CODE" > 2 AND "DSIZE_CODE" <= 3) AND "SUBREGION_" <= 1 AND

"MAXELEVR" <= 3) OR

(("DSIZE_CODE" > 2 AND "DSIZE_CODE" <= 3) AND "SUBREGION_" <= 1 AND

"MAXELEVR" > 3 AND ("GRADSEGR" <= 2 OR "GRADSEGR" > 7 )) OR

(("DSIZE_CODE" > 2 AND "DSIZE_CODE" <= 3) AND "SUBREGION_" > 1 AND

"SDISCR_2C" <= 0 AND "STRAHLER" > 4 ) OR

 "DSIZE_CODE" > 3 )

Mississippi River Model:

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

("pool" >= 'S08' AND "pool" <= 'S20')

Missouri River Model

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

("pool" >= 'O17' AND "pool" <= 'O19')

Overall Prediction:

((("DSIZE_CODE" > 1 AND "DSIZE_CODE" <= 2) AND "MAXELEVR" <= 3 AND

"SUBREGION_" <= 1) OR

(("DSIZE_CODE" > 1 AND "DSIZE_CODE" <= 2) AND "MAXELEVR" <= 3 AND

"SUBREGION_" > 1 AND "SOIL_TEXT" > 8) OR

(("DSIZE_CODE" > 1 AND "DSIZE_CODE" <= 2) AND "MAXELEVR" > 3 AND

("SOIL_TEXT" > 1 AND "SOIL_TEXT" <= 3)) OR

(("DSIZE_CODE" > 1 AND "DSIZE_CODE" <= 2) AND "MAXELEVR" > 3 AND

"SOIL_TEXT" > 3 AND "MINELEVR" <= 2) OR

(("DSIZE_CODE" > 1 AND "DSIZE_CODE" <= 2) AND "MAXELEVR" > 3 AND

"SOIL_TEXT" > 3 AND "MINELEVR" > 2 AND "SSIZE_CODE" > 1 AND

"GRADRCHR" > 7) OR

(( "DSIZE_CODE" > 2 AND "DSIZE_CODE" <= 3) AND "SUBREGION_" <= 1 AND

"MAXELEVR" <= 3) OR

(("DSIZE_CODE" > 2 AND "DSIZE_CODE" <= 3) AND "SUBREGION_" <= 1 AND

"MAXELEVR" > 3 AND ("GRADSEGR" <= 2 OR "GRADSEGR" > 7 )) OR

(("DSIZE_CODE" > 2 AND "DSIZE_CODE" <= 3) AND "SUBREGION_" > 1 AND

"SDISCR_2C" <= 0 AND "STRAHLER" > 4 ) OR

 "DSIZE_CODE" > 3 )OR

("pool" >= 'S08' AND "pool" <= 'S20') OR ("pool" >= 'O17' AND "pool" <= 'O19')

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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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1986.  Aquatic biota associated with channel stabilization structures and abandoned channels in the middle Missouri River. Final Report.  Environmental and water quality operational studies.  Technical Report E-86-6, Department of the Army, US Army Corps of Engineers, Washington, D.C.

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Photo Credits:

Upper Left:       Photo courtesy of the Native Fish Conservancy. http://www.nativefish.org

Upper Right:     Photo courtesy of the Native Fish Conservancy. http://www.nativefish.org