LOCATION.-- Lat 41°26'12", long 88°48'14" (NAD of 1927), at NW¼ SW¼ NW¼ sec.8, T.34N., R.4E., La Salle County, Hydrologic Unit 07120007, 492 feet downstream of bridge at 19th Road. | |
DRAINAGE AREA.-- 39.93 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 492 feet downstream of 19th Road 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 7/25/2000 | |||
Chlorophyta | |||
Cosmarium granatum Brébisson ex Ralfs | 6241.16754 | 530499.2405 | |
Scenedesmus spinosus Chodat | 12482.33507 | 205869.5156 | |
Chrysophyta | |||
Achnanthidium affine (Grunow) Czarnecki | 11941.4318 | 840884.477 | |
Achnanthidium minutissimum (Kützing) Czarnecki | 14926.79132 | 811608.7145 | |
Amphora pediculus (Kützing) Grunow | 241814.0362 | 24125769.46 | |
Caloneis bacillum (Grunow) Cleve | 5970.7159 | 2566140.744 | |
Cocconeis placentula var. euglypta (Ehrenberg) Cleve | 2985.35639 | 2049942.737 | |
Cocconeis placentula var. lineata (Ehrenberg) Van Heurck | 2985.35639 | 3343617.57 | |
Encyonema minutum (Hilse) Mann | 32838.94214 | 6965619.645 | |
Gomphonema kobayasii Kociolek et Kingston | 5970.7159 | 983568.8044 | |
Gomphonema minutum (Agardh) Agardh | 8956.07541 | 2983558.2 | |
Gomphonema parvulum (Kützing) Kützing | 2985.35639 | 756069.556 | |
Melosira varians Agardh | 2985.35639 | 15064939.87 | |
Navicula canalis Patrick | 1492.6782 | 119533.0728 | |
Navicula capitatoradiata Germain | 17912.15083 | 10264948.04 | |
Navicula cryptotenella Lange-Bertalot ex Krammer et Lange-Bertalot | 179121.5083 | 46323643.95 | |
Navicula minima Grunow | 92546.11053 | 3692303.609 | |
Navicula reichardtiana Lange-Bertalot | 2985.35639 | 389133.2119 | |
Navicula tripunctata (Müller) Bory | 8956.07541 | 8364409.63 | |
Navicula veneta Kützing | 8956.07541 | 1413342.062 | |
Nitzschia amphibia Grunow | 22390.18853 | 4153665.978 | |
Nitzschia desertorum Hustedt | 2985.35639 | 224615.1227 | |
Nitzschia dissipata (Kützing) Grunow | 11941.4318 | 3040856.217 | |
Nitzschia frustulum (Kützing) Grunow | 71648.60331 | 3566011.122 | |
Nitzschia inconspicua Grunow | 35824.30165 | 1194381.563 | |
Nitzschia palea (Kützing) Smith | 8956.07541 | 2610297.384 | |
Nitzschia palea var. debilis (Kützing) Grunow | 8956.07541 | 1440143.087 | |
Nitzschia sociabilis Hustedt | 5970.7159 | 1366267.857 | |
Nitzschia supralitorea Lange-Bertalot | 2985.35639 | 264943.6906 | |
Nitzschia tropica Hustedt | 2985.35639 | 635842.7373 | |
Rhoicosphenia abbreviata (Agardh) Lange-Bertalot | 74633.9597 | 37940210.57 | |
Cyanophyta | |||
Chroococcus limneticus Lemmermann | 586669.7484 | 68685437.12 | |
Chroococcus minor (Kützing) Nägeli | 74894.01043 | 624214.7089 | |
Gomphosphaeria aponina Kützing | 424399.3924 | 10609984.81 | |
Phormidium granulatum | 87376.3455 | 7225835.726 | |
Rhodophyta | |||
Unknown Rhodophyte Florideophycidae (chantransia) | 234043.7826 | 468416281.2 | |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |