Wiper (Hybrid Striped Bass)

Wiper (Hybrid Striped Bass)


deep flat body, small head and distinct back arch of white bass; dark gray or blue silvery body and thick dark longitudinal body stripes of ocean striped bass


Wiper (Hybrid Striped Bass) Distribution

Pool 14 of Mississippi River, Saylorville Reservoir and Des Moines River


gizzard shad, silversides, sunfish, insects, and crustaceans

State Record

18 pounds, 15 ounces - Des Moines River, Polk County, September 1997- Don Ostergaard, Des Moines, Iowa

Expert Tip


Hybrid striped bass have been released at two locations in Iowa. The original stocking in 1981 was into Saylorville Reservoir, which was followed each year with plantings of additional sac-fry. Fingerling sized hybrid striped bass were released into Pool 14 of the Mississippi River in 1984, and stocking has continued each autumn.

Since the initial introduction, the Morone hybrids have dispersed widely from Saylorville until they presently inhabit a large segment of the Des Moines River system. Fish have been observed upstream near Ft. Dodge and as far downstream as Ottumwa. Based on these observations, this species will undoubtedly extend its range in the Mississippi River. Abundance of the hybrid depends wholly upon the release of hatchery propagated fish.

Like most hybrids, this fish exhibits taxonomic features of both parent species. It has the deep flat body, small head and the distinct back arch of white bass; yet it maintains the dark gray or blue silvery body coloration and thick dark longitudinal body stripes of the ocean striped bass. Although the hybrid closely resembles white bass and striped bass, it still differs slightly in several features. Two distinctive tooth patches are located near the middle of the tongue. Also, the first stripe below the lateral line is distinct and complete to the tail. Positive identification of hybrid striped bass is considerably easier when viewed alongside purebred parent specimens. There are obvious external differences, but these are not so apparent when viewed alone. From observations in other localities this fish seldom exceeds 10 pounds when fully grown.

Knowledge about hybrid striped bass in Iowa is quite limited since this is a new fish to the region and its life parameters remain under investigation. However, several characteristics are well known. First of all, the most obvious is that hybridization of the parent stock is successful only in the most controlled hatchery conditions. Natural hybridization of the female ocean striped bass and the male white bass or the reciprocal cross is virtually impossible since the two species rarely exist in the same water. In Iowa, this is assured by the fact that striped bass are absent from our waters. Hybrid bass are nearly always monogenetic, which makes secondary hybridization with either parent species virtually impossible. Some mature female hybrids have been collected in the southern United States. Like the white bass, eggs of the hybrid are small in size compared with striped bass. Spawning activity of hybrids has been observed with white bass in one southern location, but no natural reproduction was found.

Hybrid striped bass grow rapidly in Iowa, but like white bass, they are fairly short lived. Three years after the initial stocking of sac-fry in Saylorville Reservoir, specimens of 20 inches in length and 5 pounds in weight were reported by fishermen. The record hybrid caught in the Des Moines River below Red Rock Reservoir in 1985 weighed 8 pounds, 3 ounces.

The hybrid striped bass, like its parent stock, is carnivorous, feeding voraciously on schools of gizzard shad. It is also known to forage for silversides, sunfish, insects and crustaceans.

Present in these Iowa water bodies:
Lake/Stream County Location Acres/Length
Red Rock Reservoir Marion 4 miles north of Knoxville 15250.00
Pool 16, Mississippi River Scott The amenities list are for Buffalo Shores campground in Buffalo, Iowa. Amenities at other locations in Pool 16 vary by location. 13000.00
Rathbun Reservoir Appanoose 8 miles northwest of Centerville 11000.00
Coralville Reservoir Johnson 4 miles north of Iowa City 5280.00
Saylorville Reservoir Polk North edge of Des Moines 4970.00
Lake Macbride Johnson 4 miles West of Solon 940.00
Three Mile Lake Union 3 miles northwest of Afton 880.00
Lake Manawa Pottawattamie Southwest edge of Council Bluffs 747.00
Lake Icaria Adams 4 miles north of Corning 648.00
Pleasant Creek Lake Linn 4 miles North of Palo 401.00
West Lake (Osceola) Clarke 2 miles west of Osceola 320.00
Lake Wapello Davis 7 miles west of Drakesville 289.00
Roberts Creek Lake Marion 6 miles northeast of Knoxville 288.00
Badger Creek Lake Madison 5 miles southeast of Van Meter 276.00
Blue Heron Lake (Raccoon River Park) Polk southwest of West Des Moines; Raccoon River Park 232.00
Ada Hayden Heritage Park Lake Story North side of Ames, west of Grand Avenue/Highway 69. 137.00
Iowa River (Marshalltown to Coralville Lake) Iowa This stretch is located in Marshall, Tama, the SW corner of Benton, Iowa, and Johnson County. A popular access is at the Hwy 21 Access, which is part of the Iowa River Corridor Wildlife Area, just south of Belle Plaine. 104.00
RAPP Park Lakes Page north edge of Shenandoah 95.00
Sand Lake Marshall On the Northeast edge of Marshalltown 95.00
Terry Trueblood Lake Johnson 1.5 miles south of Hwy 6 on Gilbert Street in Iowa City. 90.00
Des Moines River (Stratford to Saylorville Lake) Polk The Highway 30 Access is in the middle of this river section and is located 3 miles west of Boone on the north side of Highway 30. 57.00
Des Moines River (Saylorville to Red Rock) Marion A mid-section access point for this stretch of river is at the Pleasant Hill Boat Ramp. This ramp is located on SE Vandalia Drive immediately east of Highway 65. 50.00
Copper Creek Polk North side of University Ave. in Pleasant Hill along Four Mile Creek. 42.50
Prairie Park Fishery Linn 1.5 miles SSE of Cargill on Otis Road, along the Cedar River in Cedar Rapids 42.00
Iowa River (Coralville Lake to River Junction) Johnson This stretch is located in Johnson County. A popular access is the Tailwater East Ramp located right below the Coralville Lake Dam, East of North Liberty and Coralville. 29.00
Ottumwa Park Pond North Wapello Inside Ottumwa city limits 3.00
Fife's Grove Park Pond Ringgold 1 mile north of Mount Ayr 1.00