LOCATION.-- Lat 41°32'09", long 88°51'08" (NAD of 1927), in SE¼ SW¼ NW¼ sec.2, T.35N., R.3E., La Salle County, Hydrologic Unit 07120007, 1076 feet upstream of Bridge at N41-50. | |
DRAINAGE AREA.-- 125.92 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. | |
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 1076 feet upstream of North 41-50 and continues upstream for 984 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 7/25/2000 | |||
| Chlorophyta | |||
| Closterium moniliferum Ehrenberg | 3820.66873 | 345163832.9 | |
| Cosmarium circulare Reinsch | 7641.33746 | 649513.6843 | |
| Chrysophyta | |||
| Amphora pediculus (Kützing) Grunow | 225406.675 | 22488808.18 | |
| Cocconeis pediculus Ehrenberg | 3756.77569 | 12063244.87 | |
| Cyclotella meneghiniana Kützing | 3756.77569 | 3202860.565 | |
| Fragilaria vaucheriae (Kützing) Petersen | 18783.88608 | 4119062.159 | |
| Gomphonema kobayasii Kociolek et Kingston | 7513.5552 | 1237724.022 | |
| Gomphonema minutum (Agardh) Agardh | 7513.5552 | 2503008.09 | |
| Mayamaea atomus var. permitis (Hustedt) Lange-Bertalot | 7513.5552 | 305372.3505 | |
| Melosira varians Agardh | 48838.11069 | 246450709.6 | |
| Navicula capitatoradiata Germain | 30054.22079 | 17223225.61 | |
| Navicula cryptotenella Lange-Bertalot ex Krammer et Lange-Bertalot | 155906.2847 | 40319821.39 | |
| Navicula germainii Wallace | 11270.33089 | 4989762.168 | |
| Navicula gregaria Donkin | 7513.5552 | 2023773.349 | |
| Navicula minima Grunow | 170933.3951 | 6819713.847 | |
| Navicula pseudoventralis Hustedt | 15027.11039 | 2438381.318 | |
| Navicula reichardtiana Lange-Bertalot | 54473.27996 | 7100446.183 | |
| Navicula subminuscula Manguin | 11270.33089 | 787278.598 | |
| Navicula tantula Hustedt | 15027.11039 | 761273.8291 | |
| Navicula tripunctata (Müller) Bory | 22540.66559 | 21051560.16 | |
| Navicula veneta Kützing | 3756.77569 | 592849.9763 | |
| Nitzschia dissipata (Kützing) Grunow | 95797.83545 | 24394683.01 | |
| Nitzschia frustulum (Kützing) Grunow | 45081.335 | 2243735.88 | |
| Nitzschia palea (Kützing) Smith | 30054.22079 | 8759467.768 | |
| Nitzschia palea var. debilis (Kützing) Grunow | 15027.11039 | 2416369.687 | |
| Nitzschia sociabilis Hustedt | 15027.11039 | 3438625.828 | |
| Nitzschia supralitorea Lange-Bertalot | 26297.4451 | 2333839.33 | |
| Nitzschia tropica Hustedt | 11270.33089 | 2400436.364 | |
| Planothidium lanceolatum (Brébisson ex Kützing) Lange-Bertalot | 3756.77569 | 508453.4917 | |
| Reimeria sinuata (Gregory) Kociolek et Stoermer | 7513.5552 | 1260762.137 | |
| Rhoicosphenia abbreviata (Agardh) Lange-Bertalot | 48838.11069 | 24826877.88 | |
| Surirella ovata var. salina Smith | 3756.77569 | 2753866.104 | |
| Cyanophyta | |||
| Oscillatoria limosa (Dillwyn) Agardh | 45848.02478 | 36787432.59 | |
| Phormidium granulatum | 359142.8608 | 29700341.66 | |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |