LOCATION.-- Lat 41°33'25", long 87°35'46" (NAD of 1927), in NW¼ SW¼ SW¼ sec.35, T.36N., R.14E., Cook County, Hydrologic Unit 07120003, 36 feet downstream of Bridge on Cottage Grove Road. | |
DRAINAGE AREA.-- 22.38 mi². | |
PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE | |
PARTIAL RECORD: Miscellaneous discharge measurements, water year 2000. | |
SURFACE-WATER QUALITY | |
MISCELLANEOUS: Water year 2000; contaminants in streambed sediments, water year 2000. | |
BIOLOGICAL | |
ALGAE: Water year 2000. | |
BENTHIC MACROINVERTEBRATES: Water year 2000. | |
FISH: Water year 2001. | |
HABITAT: Water year 2000-01. | |
REMARKS FOR CURRENT YEAR.--Algae community samples were collected as part of the National Water-Quality Assessment program (NAWQA) in the lower Illinois River Basin. A quantitative sample was collected in accordance with NAWQA protocols (Cuffney and others, 1993). Reach A begins 36 feet downstream of Cottage Grove Bridge and continues downstream for 656 feet. | |
| PERIPHYTON ALGAE, QUANTITATIVE, RTH (Richest-targeted habitat, cobbles or snags) | |||
|---|---|---|---|
| [sp., species; Chlorophyta, Green algae; Cyanophyta, Blue-green algae; Chrysophyta, Golden algae, for example diatoms; Cryptophyta, Cryptophytes; Euglenophyta, Euglenoids; Pyrrhophyta, Dinoflagellates; Rhodophyta, Red algae] | |||
| Quantitative sample | |||
| Phylum | |||
| Taxon | Cells (number/cm2) | Biovolume (biovolume/cm2) | |
| Reach A 7/12/2000 | |||
| Chrysophyta | |||
| Achnanthidium saprophila (Kobayasi et Mayama) Round et Bukhtiyarova | 115.68231 | 6474.2759 | |
| Amphora montana Krasske | 347.04705 | 74626.85239 | |
| Amphora pediculus (Kützing) Grunow | 231.36474 | 23083.24414 | |
| Aulacoseira ambigua (Grunow) Simonsen | 347.04705 | 117397.988 | |
| Biremis circumtexta (Meister ex Hustedt) Lange-Bertalot et Witkowski | 115.68231 | 29187.87556 | |
| Cocconeis pediculus Ehrenberg | 115.68231 | 371463.2364 | |
| Cocconeis placentula Ehrenberg | 578.41192 | 421402.8909 | |
| Cocconeis placentula var. euglypta (Ehrenberg) Cleve | 462.72948 | 317740.6051 | |
| Cocconeis placentula var. lineata (Ehrenberg) Van Heurck | 462.72948 | 518259.8767 | |
| Cyclostephanos dubius (Frick) Round | 115.68231 | 29504.54049 | |
| Cyclotella atomus Hustedt | 115.68231 | 9623.56075 | |
| Cyclotella meneghiniana Kützing | 694.09423 | 591753.9967 | |
| Cyclotella ocellata Pantocsek | 115.68231 | 21977.57269 | |
| Cyclotella pseudostelligera Hustedt | 578.41192 | 49983.04021 | |
| Cyclotella stelligera (Cleve et Grunow) Van Heurck | 115.68231 | 28038.9546 | |
| Diadesmis contenta (Grunow ex Van Heurck) Mann | 115.68231 | 5054.43183 | |
| Fallacia pygmaea (Kützing) Stickle et Mann | 231.36474 | 252002.648 | |
| Fallacia tenera (Hustedt) Mann | 462.72948 | 71946.72243 | |
| Frustulia vulgaris (Thwaites) deToni | 347.04705 | 538790.5518 | |
| Gomphonema angustatum (Kützing) Rabenhorst | 231.36474 | 73015.25595 | |
| Gomphonema insigne Gregory | 115.68231 | 249462.6783 | |
| Gomphonema kobayasii Kociolek et Kingston | 231.36474 | 38113.20899 | |
| Gomphonema parvulum (Kützing) Kützing | 578.41192 | 146488.2522 | |
| Gyrosigma scalproides (Rabenhorst) Cleve | 231.36474 | 339013.3645 | |
| Hantzschia amphioxys (Ehrenberg) Grunow | 231.36474 | 243980.7221 | |
| Hippodonta capitata (Ehrenberg) Lange-Bertalot, Metzeltin et Witkowski | 115.68231 | 68906.66067 | |
| Luticola mutica (Kützing) Mann | 462.72948 | 268397.1562 | |
| Mayamaea atomus var. permitis (Hustedt) Lange-Bertalot | 231.36474 | 9403.32417 | |
| Navicula cryptocephala Kützing | 347.04705 | 116788.7699 | |
| Navicula cryptotenella Lange-Bertalot ex Krammer et Lange-Bertalot | 809.77666 | 209421.001 | |
| Navicula erifuga Lange-Bertalot | 578.41192 | 294813.7561 | |
| Navicula gregaria Donkin | 8560.49653 | 2305766.615 | |
| Navicula minima Grunow | 1388.18857 | 55384.43104 | |
| Navicula recens Lange-Bertalot | 1272.50614 | 637593.004 | |
| Navicula salinarum Grunow | 578.41192 | 512993.9675 | |
| Navicula trivialis Lange-Bertalot | 289.2059 | 306760.0997 | |
| Navicula veneta Kützing | 231.36474 | 36511.25151 | |
| Nitzschia amphibia Grunow | 347.04705 | 64381.66163 | |
| Nitzschia dissipata (Kützing) Grunow | 1503.871 | 382957.0494 | |
| Nitzschia dubia Smith | 115.68231 | 2056810.861 | |
| Nitzschia frustulum (Kützing) Grunow | 1677.39459 | 83485.33656 | |
| Nitzschia palea (Kützing) Smith | 1503.871 | 438311.4661 | |
| Nitzschia palea var. debilis (Kützing) Grunow | 462.72948 | 74407.2194 | |
| Planothidium delicatulum (Kützing) Round et Bukhtiyarova | 115.68231 | 23743.14294 | |
| Planothidium lanceolatum (Brébisson ex Kützing) Lange-Bertalot | 1272.50614 | 172224.8664 | |
| Rhoicosphenia abbreviata (Agardh) Lange-Bertalot | 3239.10675 | 1646601.528 | |
| Stephanodiscus parvus Stoermer et Håkansson | 115.68231 | 57841.15597 | |
| Surirella minuta Brébisson | 809.77666 | 671113.2651 | |
| Synedra parasitica var. subconstricta (Grunow) Hustedt | 115.68231 | 11452.54888 | |
| Tabularia tabulata (Agardh) Snoeijs | 462.72948 | 3989190.887 | |
| Thalassiosira pseudonana Hasle et Heimdal | 115.68231 | 5207.03798 | |
| Thalassiosira weissflogii (Grunow) Fryxell et Hasle | 115.68231 | 108294.6672 | |
| Tryblionella apiculata Gregory | 115.68231 | 282343.0649 | |
| Tryblionella calida (Grunow) Mann | 231.36474 | 509867.8689 | |
| Tryblionella victoriae Grunow | 115.68231 | 100081.6098 | |
| Cyanophyta | |||
| Oscillatoria sp. 1? | 16820.69439 | 420517.3598 | |
| Phormidium granulatum | 3672.12342 | 303676.7042 | |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |