Quad Cities Sub-area Contingency Plan

Appendix K: Environmentally Sensitive Areas and Endangered and Threatened Species

(This appendix is designed to provide limited information on the sub-area's environmentally sensitive areas and species and to provide insight into the diversity of habitats and species present along the Mississippi River. The extent of damage to natural resources may be dependent on water levels, seasonality, migrations, spawning patterns and other factors best understood by Natural Resource Trustees. For that reason, the appropriate state or federal Natural Resource Trustee should be notified whenever a spill or discharge affects or has the potential to affect a sensitive environmental resource in the sub-area.)

Environmentally Sensitive Areas Comments
Princeton Wildlife Refuge Iowa wildlife area located immediately north of Princeton and west of Steamboat Slough.
Steamboat Slough River Mile 503-505; important sportfishery for bluegill, crappie, white bass and channel catfish. Designated as essential habitat for Higgins Eye Mussel by U.S. Fish and Wildlife Service.
LeClaire Canal River Mile 493-494.4; important fishery for largemouth bass, bluegill, crappie, and northern pike, and probable overwintering area for fish.
Hilton Fawks Eagle Refuge/Illiniwek Forest Park River Mile 493; the eagle refuge and 275-acre county-owned forest are located northeast of Hampton along the Mississippi River. Together, they total 694 acres.
Lock and Dam 14 Tailwaters River Mile 492.7-493; Important fishery for white bass, channel catfish, carp and drum, particularly along the Illinois shoreline, a border of the Illinowek Forest Preserve.
Crow Creek State Wildlife Area Located on Crow Creek approximately 11/2 miles east of the Davenport Municipal Airport or off Iowa 61, 1 1/4 miles north of the I-80 and Highway 61 Interchange. Crow Creek enters the Mississippi at approximately River Mile 490.
Campbells Island Slough River Mile 489.5-491; Important sport and commercial fishery fir channel catfish, drum, bluegill and crappie, and spawning habitat for buffalo, bluegill, crappie, and largemouth bass.
East Moline Shoreline River Mile 488-489; most important commercial mussel bed in the pool.
Lateral Dike and Main Channel Border River Mile 485-488; important sportfishery for channel cats and drum.
Ben Butterworth Parkway River Mile 496.6-488; important sportfishery for channel catfish.
Mouth of Sylvan Slough River Mile 485.5-486; designated as essential habitat for Higgins Eye Mussel.
Sylvan Slough River Mile 483-484.8; designated as mussel sanctuary by Illinois DNR; important sportsfishery for walley, sauger, bluegill, channel cats, paddlefish, crappie, whie bass and drum, and considered pre-spawn staging area and spawning habitat for walleye and sauger.
Lock and Dam 15 Tailwaters & Davenport River Mile 482.5-482.7; important sportfishery Levee Wall for white bass, channel catfish, walleye and sauger.
Potter's Lake River Mile 479.6-480.2; Important sportfishery and for bluegill and largemouth bass, also spawning and overwintering habitat.
Black Hawk Forest Black Hawk is an Illinois state park located on the northwest bank of the Rock River about 2 miles upstream of the confluence of the Rock and the whee rivers at River Mile 479.
Davenport Harbor (Credit Island Slough) River Mile 478-480.7; Important Sportfishery for bluegill and crappie; spawning habitat, and probable sportfish overwintering area.
Credit Island Wing Dams River Mile 478-480.4; important walleye and sauger fishery; spawning habitat.
Nahant Marsh River Mile 477.5-479; grass pickerel collected from area.
Enchanted Island Slough River Mile 476.4-477.2; important habitat and overwintering area for sportfish.
Main Channel Border River Mile 476-478; deep water overwintering area for fish.
Andalusia Slough River Mile 470-475.5; Important sportfishery for largemouth bass, bluegill, crappie, white bass and channel catfish; Higgins Eye and Spectable Case mussel have been found in area.

Federally Listed Endangered Species Federally Listed Species Are Automatically Listed with respective listings by Illinois and Iowa.
Peregrine Falcon Peregrines are transient through Scott and Rock Island Counties, especially during spring and fall migrations. They feed extensively on the wing on pigeons and starlings in urban settings, where they may build nests or make use of man-made nest boxes on tall buildings. They also feed heavily on ducks and shorebirds in open wetlands, making them susceptible to secondary contamination. Its status was proposed to be upgraded to threatened in May 1998.
Higgins' Eye Pearly Mussel A freshwater mussel that has been identified in both Iowa and Illinois within the sub-area. As filter feeders, mussels are extremely sensitive to small levels of contamination.
Spectacle Case Mussel Inhabits medium to large rivers
Federally Threatened Species
Bald eagle Wintering bald eagles are common within the Mississippi River corridor, with several major viewing areas in the sub-area. Because they feed on fish and frequently take stricken waterfowl, they are extremely susceptible to secondary poisoning, either from acute exposures to extremely hazardous substances or chronic exposures to other contaminants. The bald eagle was proposed for delisting, meaning it has recovered as a threatened species, in May 1998.
Illinois Endangered Species Within the Sub-area
Lake Sturgeon Bottoms of lakes and large river in water 4 to 9 meters deep
Red-shouldered Hawk Moist and riparian forests, including swamps
Spectacle Case Mussel Inhabits medium to large rivers
Western Sand Darter Small fish inhabits sandy runs of medium to large rivers
Bald Eagle Undisturbed areas near large rivers and lakes
River Otter Riparian habitat with extensive woodland and good water quality
Pallid Shiner Pools with negligible current in medium to large rivers
Black-crowned night heron Large wading bird of bottomland forests
Sheepnose mussel
Yellow-headed blackbird Moderately dense stands of cattails and bulrushes with interspersed open water
Downy Yellow Painted Cup A flower of dry-mesic gravel and sand prairies
Running Pine A conifer of slopes, talus piles, St. Peter's sandstone and seeps in wetland forests
Illinois Threatened Species with the Sub-area
Great Egret A large white heron-like bird that nests in floodplain forests and feeds in wetlands, lagoons and riparian areas
Butterfly Mussel Inhabits sand or gravel substrates in areas with current in medium to large rivers
Bald Eagle Common in the sub-area during the winter
Double-crested cormorant A large bird that feeds exclusively on fish by diving for them in lakes, rivers and other habitat
Pied-billed Grebe A small duck-like bird that dives for fish in open water
Schreber Aster A flower of rich mesic forested ravines
Hill's Thistle Inhabits dry open soil in prairies
Iowa Endangered Species within the Sub-area Comments
Buckhorn Mussel
Lake Sturgeon
Red-shouldered Hawk
Iowa Threatened Species within the Sub-area
Strange Floater Mussel
Butterfly Mussel
Grass Pickerel
Orangethroat Darter
Western Sand Darter
Ornate Box Turtle
River Otter

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