LOCATION.-- Lat 39°52'47", long 90°45'32" (NAD of 1927), in SW1/4NW1/4 sec.21, T.2 S., R.3 W., Brown County, Hydrologic Unit 07130011. Downstream boundary is located 20 meters upstream from county road bridge, 5.5 mi west of Versailles.. | |
DRAINAGE AREA.-- Undetermined | |
PERIOD OF RECORD.-- | |
SURFACE-WATER DISCHARGE AND STAGE | |
PARTIAL RECORD: Miscellaneous discharge, water years 1972-73. | |
BIOLOGICAL | |
ALGAE: Water year 1997. | |
BENTHIC MACROINVERTEBRATES: Water year 1997. | |
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). | |
| 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 8/6/1997 | |||
| Chlorophyta | |||
| Characium Rabenhorstii De Toni | 11372.85412 | 1285587.43 | |
| Cladophora sp. 0A UL NAWQA EJ | 22745.70824 | 27640129.74 | |
| Gloeocystis vesiculosa Nägeli | 68237.12472 | 20102325.26 | |
| Pediastrum simplex (Meyen) Lemmermann | 90982.83296 | 30658624.22 | |
| Scenedesmus acuminatus (Lagerheim) Chodat | 45491.41648 | 5046506.704 | |
| Scenedesmus intermedius Chodat | 45491.41648 | 745674.7195 | |
| Schroederia setigera (Schröder) Lemmermann | 11372.85412 | 4531440.613 | |
| Unknown Chlorophyte unicellular coccoid small 1 sp. 0A NAWQA EDJ | 11372.85412 | 318503.6244 | |
| Chrysophyta | |||
| Achnanthidium affine (Grunow) Czarnecki | 676.21853 | 118715.691 | |
| Amphora copulata (Kützing) Schoeman et Archibald | 338.10358 | 565492.2464 | |
| Amphora montana Krasske | 338.10358 | 72703.70301 | |
| Amphora pediculus (Kützing) Grunow | 1352.43707 | 127296.8102 | |
| Aulacoseira granulata (Ehrenberg) Simonsen | 845.27601 | 307010.4811 | |
| Caloneis bacillum (Grunow) Cleve | 1690.55202 | 726578.6024 | |
| Cocconeis placentula var. euglypta (Ehrenberg) Cleve | 338.10358 | 233306.8184 | |
| Cyclostephanos dubius (Frick) Round | 8452.79421 | 2155868.127 | |
| Cyclostephanos invisitatus (Hohn et Hellerman) Theriot, Stoermer et Hĺkansson | 4057.33394 | 730108.3545 | |
| Cyclotella atomus Hustedt | 5409.78238 | 453753.7422 | |
| Cyclotella meneghiniana Kützing | 17919.92192 | 15484764.42 | |
| Encyonema minutum (Hilse) Mann | 1183.39096 | 242927.0159 | |
| Epithemia sorex Kützing | 338.10358 | 581374.0671 | |
| Fallacia tenera (Hustedt) Mann | 338.10358 | 52569.47145 | |
| Gomphonema minutum (Agardh) Agardh | 3212.05793 | 1070040.319 | |
| Gomphonema parvulum (Kützing) Kützing | 845.27601 | 183821.2852 | |
| Heterothrix sp. 0A UL NAWQA EJ | 113728.5412 | 123246767.1 | |
| Mayamaea atomus (Kützing) Lange-Bertalot | 338.10358 | 9481.91581 | |
| Navicula arvensis Hustedt | 338.10358 | 25151.61513 | |
| Navicula capitatoradiata Germain | 338.10358 | 195336.7656 | |
| Navicula cryptotenella Lange-Bertalot ex Krammer et Lange-Bertalot | 845.27601 | 223330.8785 | |
| Navicula erifuga Lange-Bertalot | 1014.33349 | 444530.3843 | |
| Navicula exilis Kützing | 676.21853 | 240848.464 | |
| Navicula germainii Wallace | 3719.23036 | 2454925.772 | |
| Navicula gregaria Donkin | 338.10358 | 94311.74474 | |
| Navicula meniscus Schumann | 338.10358 | 565455.2235 | |
| Navicula minima Grunow | 22146.32471 | 887727.6716 | |
| Navicula rostellata Kützing | 338.10358 | 299692.2461 | |
| Navicula subminuscula Manguin | 1352.43707 | 98484.95003 | |
| Navicula symmetrica Patrick | 2028.66697 | 2322816.199 | |
| Navicula tantula Hustedt | 169.0461 | 9102.6239 | |
| Navicula tenelloides Hustedt | 338.10358 | 55923.01051 | |
| Nitzschia amphibia Grunow | 8621.85169 | 1606543.309 | |
| Nitzschia angustatula Lange-Bertalot | 676.21853 | 250020.0922 | |
| Nitzschia frustulum (Kützing) Grunow | 7776.56431 | 382958.0705 | |
| Nitzschia inconspicua Grunow | 3381.11541 | 188080.6061 | |
| Nitzschia palea (Kützing) Smith | 338.10358 | 102389.1679 | |
| Nitzschia palea var. debilis (Kützing) Grunow | 7100.34578 | 1210625.886 | |
| Pleurosigma angulatum (Quekett) Smith | 338.10358 | 5598954.855 | |
| Rhoicosphenia abbreviata (Agardh) Lange-Bertalot | 1014.33349 | 517152.3422 | |
| Simonsenia delognei (Grunow) Lange-Bertalot | 1014.33349 | 56900.01231 | |
| Stephanodiscus minutulus (Kützing) Cleve et Möller | 12848.24311 | 4091732.285 | |
| Surirella minuta Brébisson | 338.10358 | 288953.815 | |
| Cyanophyta | |||
| Jaaginema pseudogeminatum (Schmidle) Anagnostidis & Komárek | 341185.6236 | 1337142.267 | |
| Nostoc oryzae (Fritsch) Komárek & Anagnostidis | 204711.3742 | 10284699.44 | |
| Oscillatoria angustissima West & West | 1421606.765 | 167857730.3 | |
| Oscillatoria fremyii De Toni | 375304.186 | 524209.3571 | |
| Snowella lacustris (Chodat) Komárek & Hindák | 909828.3296 | 5223843.509 | |
| Synechocystis aquatilis Sauvageau | 22745.70824 | 3282910.184 | |
| Rhodophyta | |||
| Phragmonema sp. 0A UL NAWQA EJ | 22745.70824 | 5713721.91 | |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |