05526000 DATA: Benthic Macroinvertebrates, 1999

Station list Available data
ILLINOIS RIVER BASIN

05526000 IROQUOIS RIVER NEAR CHEBANSE, IL

LOCATION.-- Lat 41°00'32", long 87°49'24", in SE1/4SW1/4 sec.10, T.29 N., R.13 W., Kankakee County, Hydrologic Unit 07120002, on right bank at upstream side of bridge on county highway, 3.1 mi downstream from Beaver Creek, 4.5 mi east of Chebanse, and at mile 6.5.

DRAINAGE AREA.-- 2,091 mi².

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE

DISCHARGE: April 1923 to current year.

STAGE: Water years 1994-1998;2000.

SURFACE-WATER QUALITY

CHEMICAL: Water years 1978-1991 and 1999-2000. Additional chemical data for water years 1959-77 are published in Water-Resources Investigations 78-23 and 79-24 as site FL 02.

SEDIMENT: October 1978 to September 1981, January 1993 to December 1995.

MISCELLANEOUS: June and July 1998; Contaminants in streambed sediments, August 1998; contaminants in fish tissue, August 1998.

BIOLOGICAL: Benthic macroinvertebrates, July 1999; fish, August, 1999.

REVISED RECORDS.-- WSP 1308: 1924-28(M), 1930(M), 1936(M), 1938(M), 1942(M), 1947(M). WDR IL-75-1: Drainage area.

GAGE.-- Water-stage recorder, phone telemetry, and crest-stage gage. Datum of gage is 595.99 ft above sea level. Prior to June 16,1976, nonrecording gage, and June 17, 1976 to Aug. 13, 1979 water-stage recorder at site 600 ft upstream at datum 2.00 ft higher. Aug. 14 to Oct. 24, 1979, nonrecording gage at present site at datum 2.00 ft higher.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 27,000 ft³/s, May 13, 1933, Mar. 7, 1979; maximum gage height 21.68 ft, Mar. 7, 1979, present datum, ice jam; minimum discharge, 9 ft³/s, Oct. 6-8, 1956.
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily, 1,400 mg/L, Apr. 14, 1979; minimum daily, 4 mg/L, Mar. 3, 1994.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 57,000 tons, June 5, 1980; minimum daily, 3.2 tons, Nov. 16, 1979.

EXTREMES OUTSIDE PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Flood in spring of 1913 reached a stage of 21.6 ft, present datum, discharge about 34,000 ft³/s.

REMARKS FOR CURRENT YEAR.--Benthic macroinvertebrate community samples were collected as part of the National Water-Quality Assessment program (NAWQA) in the upper Illinois River Basin. One quantitative (Richest-Targeted Habitat) and one qualitative (Qualitative-Multiple Habitat) sample were collected in accordance with the NAWQA protocols (Cuffney and others, 1993). The quantitative sample was a composite of macroinvertebrates from about 10 submerged tree branches. Branches were cut underwater, gathered in a 425╡m mesh net, and invertebrates were washed or picked from the branches. The average length and average diameter of each branch were measured and used to calculate an approximate surface area. The qualitative sample was collected from many habitat types within the sampling reach to obtain as complete a list of invertebrate taxa as possible. All samples were processed by the USGS National Water-Quality Laboratory. Phylum, Class, Order, Suborder, Family, Subfamily, and Tribe are listed and arranged according to the USGS National Water-Quality Laboratory taxonomic hierarchy. Reach A is located 3.6 mi downstream of the gage (lat 41°02'57.38", long 87°50'31.75") and continues downstream for 984 and (lat 41°03'06.58", long 87°50'26.37"). The surface area sampled at reach A was 0.18 m².

BENTHIC MACROINVERTEBRATES
[sp., species; A, Adults; LV, Larvae; P, Pupae; X, present; -, not found]

PHYLUM
	Class
		Order
			(Suborder)
				Family					Reach A
					Subfamily				7/22/99
						(Tribe)
							Taxon	Life Stage	Quantitative	Qualitative

PLATYHELMINTHES
	Turbellaria
							Turbellaria		3	-
MOLLUSCA
	Gastropoda
				Pleuroceridae
							Pleuroceridae		-	X
							Elimia sp.		-	X
				Physidae
							Physella sp.		6	-
ARTHROPODA
	Malacostraca
		Amphipoda
				Hyalellidae
							Hyalella azteca (Saussure)		15	X
	Insecta
		Ephemeroptera
							Ephemeroptera	LV	6	-
			(Furcatergalia)
				Potamanthidae
							Anthopotamus myops (Walsh)	LV	-	X
				Caenidae
							Caenis sp.	LV	15	X
				Leptohyphidae
							Tricorythodes sp.	LV	87	X
			(Pisciforma)
				Baetidae
							Baetidae	LV	60	-
							Baetis sp.	LV	72	-
							Baetis intercalaris McDunnough	LV	60	-
			(Setisura)
				Heptageniidae
							Heptageniidae	LV	27	X
							Stenacron sp.	LV	6	-
							Stenacron interpunctatum (Say)	LV	-	X
							Stenonema sp.	LV	27	-
							Stenonema exiguum Traver	LV	8	-
							Stenonema mexicanum (Ulmer)	LV	6	-
							Stenonema terminatum (Walsh)	LV	3	-
		Odonata
			(Zygoptera)
				Calopterygidae
							Hetaerina sp.	LV	4	-
				Coenagrionidae
							Coenagrionidae	LV	9	X
							Argia translata Hagen	LV	-	X
		Plecoptera
			(Systellognatha)
				Perlidae
					Acroneuriinae
						(Acroneuriini)
							Perlesta sp.	LV	-	X
		Hemiptera
			(Heteroptera)
				Corixidae
					Corixinae
						(Corixini)
							Palmacorixa sp.	A	-	X
				Gerridae
							Gerridae	LV	3	-
				Pleidae
							Pleidae	LV	3	-
		Megaloptera
				Corydalidae
							Corydalidae	LV	3	-
		Trichoptera
			(Spicipalpia)
				Glossosomatidae
					Protoptilinae
							Protoptila sp.	P	-	X
				Hydroptilidae
					Hydroptilinae
							Hydroptila sp.	LV	6	-
							Hydroptila sp.	P	6	-
			(Annulipalpia)
				Hydropsychidae
							Hydropsychidae	LV	6	-
					Hydropsychinae
							Cheumatopsyche sp.	LV	3	-
							Hydropsyche bidens Ross/orris Ross	LV	3	-
							Hydropsyche rossi Flint, Voshell, and Parker/simulans Ross	LV	9	-
							Hydropsyche sp.	LV	30	-
							Hydropsyche bidens Ross	LV	24	-
							Hydropsyche phalerata Hagen	LV	9	-
				Polycentropodidae
							Polycentropodidae	LV	6	-
			(Integripalpia)
					Leptocerinae
							Nectopsyche candida (Hagen)/spiloma (Ross)	LV	6	X
							Nectopsyche sp.	LV	6	-
							Oecetis sp.	LV	3	-
		Coleoptera
			(Adephaga)
				Gyrinidae
							Dineutus assimilis (Kirby)	A	-	X
							Gyrinus analis Say	A	-	X
				Haliplidae
							Peltodytes sp.	A	-	X
			(Polyphaga)
				Hydrophilidae
							Sperchopsis tessellata (Ziegler)	A	-	X
				Dryopidae
							Helichus striatus LeConte	A	-	X
				Elmidae
							Dubiraphia sp.	LV	-	X
							Dubiraphia minima Hilsenhoff	A	28	-
							Macronychus glabratus Say	A	3	X
							Macronychus glabratus Say	LV	177	-
							Stenelmis sp.	LV	-	X
							Stenelmis crenata (Say)	A	-	-
							Stenelmis grossa Sanderson	A	24	X
				Psephenidae
							Psephenus herricki (DeKay)	A	3	X
							Psephenus herricki (DeKay)	LV	-	X
		Diptera
			(Nematocera)
				Ceratopogonidae
					Ceratopogoninae
							Bezzia/Palpomyia sp.	LV	3	-
				Chironomidae
							Chironomidae	P	3	-
					Chironominae
							Chironominae	P	3	-
						(Chironomini)
							Chironomini	LV	3	X
							Stenochironomus/Xestochironomus sp.	LV	6	-
							Cryptochironomus sp.	LV	-	X
							Dicrotendipes sp.	LV	12	-
							Polypedilum sp.	LV	114	X
							Polypedilum sp.	P	3	-
							Stelechomyia perpulchra (Mitchell)	LV	3	-
							Stenochironomus sp.	LV	12	-
						(Tanytarsini)
							Rheotanytarsus sp.	LV	6	-
					Orthocladiinae
							Cricotopus/Orthocladius sp.	LV	3	-
							Cricotopus bicinctus group	LV	9	-
							Cricotopus sp.	LV	9	-
					Tanypodinae
						(Pentaneurini)
							Thienemannimyia group sp.	LV	12	X
							Ablabesmyia sp.	LV	3	-
				Simuliidae
							Simuliidae	LV	3	-
		Acari
							Hydrachnidia		9	-