LOCATION.-- Lat 41°38'38", long 87°40'48" (NAD of 1927), in SE¼ NE¼ sec.1, T.36N., R.13E., Cook County, Hydrologic Unit 07120003, 23 feet downstream of bridge at Dixie Hwy. | |
DRAINAGE AREA.-- 19.8 mi². | |
PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE | |
PARTIAL RECORD: Annual maximum, water years 1962-1979; 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 23 feet downstream of Dixie Highway and continues downstream for 492 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 7/13/2000 | |||
| Chlorophyta | |||
| Coelastrum microporum Nägeli | 10851.22688 | 952188.9816 | |
| Chrysophyta | |||
| Amphora copulata (Kützing) Schoeman et Archibald | 710.17446 | 1187796.207 | |
| Amphora pediculus (Kützing) Grunow | 37284.16522 | 3719838.554 | |
| Caloneis bacillum (Grunow) Cleve | 1420.34892 | 610448.6105 | |
| Cocconeis placentula var. euglypta (Ehrenberg) Cleve | 710.17446 | 487652.656 | |
| Cocconeis placentula var. lineata (Ehrenberg) Van Heurck | 710.17446 | 795399.7736 | |
| Cyclostephanos dubius (Frick) Round | 2130.52338 | 543385.6926 | |
| Cyclotella meneghiniana Kützing | 1775.43578 | 1513657.916 | |
| Diploneis parma Cleve | 2130.52338 | 15981055.84 | |
| Eunotia soleirolii (Kützing) Rabenhorst | 710.17446 | 1269436.845 | |
| Fallacia omissa (Hustedt) Mann | 710.17446 | 133896.162 | |
| Gomphonema kobayasii Kociolek et Kingston | 710.17446 | 116988.5579 | |
| Gomphonema parvulum (Kützing) Kützing | 710.17446 | 179858.3543 | |
| Melosira varians Agardh | 2130.52338 | 10751214.38 | |
| Navicula cryptocephala Kützing | 2130.52338 | 716966.7664 | |
| Navicula germainii Wallace | 710.17446 | 314418.5989 | |
| Navicula gregaria Donkin | 4261.04747 | 1147711.582 | |
| Navicula ingenua Hustedt | 7811.91977 | 338435.8673 | |
| Navicula minima Grunow | 41545.2127 | 1657525.507 | |
| Navicula phyllepta Kützing | 1420.34892 | 417582.5816 | |
| Navicula recens Lange-Bertalot | 5681.39639 | 2846680.635 | |
| Navicula rostellata Kützing | 710.17446 | 614673.5711 | |
| Navicula tantula Hustedt | 3550.87229 | 179887.2888 | |
| Navicula trivialis Lange-Bertalot | 710.17446 | 753280.5831 | |
| Navicula veneta Kützing | 710.17446 | 112071.3468 | |
| Nitzschia frustulum (Kützing) Grunow | 56813.96609 | 2827678.777 | |
| Nitzschia palea (Kützing) Smith | 710.17446 | 206984.2477 | |
| Nitzschia solita Hustedt | 710.17446 | 189451.6335 | |
| Planothidium lanceolatum (Brébisson ex Kützing) Lange-Bertalot | 7456.8329 | 1009230.532 | |
| Rhoicosphenia abbreviata (Agardh) Lange-Bertalot | 18109.45123 | 9205948.546 | |
| Sellaphora seminulum (Grunow) Mann | 1420.34892 | 104468.9802 | |
| Staurosirella pinnata (Ehrenberg) Williams et Round | 710.17446 | 68492.7997 | |
| Surirella minuta Brébisson | 4971.22193 | 4119966.849 | |
| Tryblionella apiculata Gregory | 710.17446 | 1733305.895 | |
| Tryblionella victoriae Grunow | 710.17446 | 614401.6474 | |
| Euglenophyta | |||
| Euglena proxima Dangeard | 723.41513 | 7492727.514 | |
| Rhodophyta | |||
| Unknown Rhodophyte Florideophycidae (chantransia) | 28213.1899 | 56466005.41 | |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |