Browsing Lake Superior Research Institute by Issue Date
Now showing items 21-40 of 258
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VEGETATION AND RED CLAY SOIL STABILITY
(1976)Vegetation cover, and related factors such as litter and organic content of soil, is known to be important in controlling and/or reducing erosion rates (1). Other factors such as slope, soil particle size, soil ... -
INFLUENCE OF TURBIDITY ON SURVIVAL, GROWTH AND DISTRIBUTION OF LARVAL LAKE HERRING Coregonus artedii
(1976)Influence of red-clay turbidity on survival, growth and distribution of larval lake herring, Coregonus artedii, was measured by holding post hatch larvae for 62 days at 9 levels of suspended solids varying from 2 to ... -
Aquaria on a classroom budget
(1976)With the increasing emphasis on environmental science in many school curricula, activities which utilize small ecosystems for demonstration and study assume great importance. Aquaria are one of the best means of ... -
ANALYSIS OF MINNESOTA NORTHSHORE STREAMS
(1976)The stream research involving the determination of baseline water quality parameters from streams entering Lake Superior from the Minnesota portion of the basin was carried out between August 21, 1974 and July 20, 1975. -
ENVIRONMENTAL INVENTORY OF LOWER ST. LOUIS RIVER COVERING PROPOSED IMPROVEMENTS TO DULUTH-SUPERIOR HARBOR, MINNESOTA AND WISCONSIN FINAL REPORT
(1976-03-01)This report is the result of studies conducted in St. Louis River-Duluth Harbor in the summer of 1975. Specifically, three aspects of the harbor's biota were included, and are treated in subsequent sections. These ... -
Final Report on Effective Regional Use of Water Resources In The Lake Superior Basin Through Continuing Community Education
(1976-05)Project AWARE began at a lake Superior Water Consortium meeting held 17 January 1974. Schools represented were: University of Wisconsin Superior University of Wisconsin - Eau Claire Northland College Michigan ... -
RED CLAY EROSION DEMONSTRATION RESEARCH FIRST ANNUAL REPORT
(1976-06-01)The central emphasis of this .study is to identify major vegetational components of the Little Balsam and Skunk Creek watersheds and to relate this cover to the erosion of the red clay soils. The examination of the ... -
Western Lake Superior Basin Erosion - Sedimentation Control Program Wisconsin and Minnesota Second Annual Report September 1976
(1976-09)During the past year the Red Clay Project Work Plan was published and distributed Since the formulation of the final draft, only minor modifications have been made to that plan. -
CHEMICAL AND PHYSICAL ANALYSES OF SELECTED HIGHWAY CONSTRUCTION MATERIALS IN DOUGLAS COUNTY, WISCONSIN
(1976-10)A proposal to use sediments dredged from the Superior=Duluth Harbor as construction material for the proposed Arrowhead High Bridge has been the impetus be hind this study. The focus of the study is a comparison of ... -
Behavior of Troutperch
(1977)Troutperch (Percopsis omiscomaycus) are found in northern lakes ranging from northern Canada to the northern United States. They occur at depths from 0-55 fathoms, but are most commonly found at depths of less than 30 ... -
Development of Bioassay Procedures for Defining Pollution of Harbor Sediments
(1977)Six sites in the Duluth-Superior Harbor have been sampled. The sites 1 (Allouez Bay area), 2 (Superior Ore Docks area), 3 (Lakehead Transshipment Terminal area), 4 (Superior Sewage Treatment Plant area) and 6 (Minnesota ... -
Static Coal Storage - Biological Effects on the Aquatic Environment
(1977)Benthic samples taken from four regions of the ORBA Coal dock facility indicated that the aquatic environment was moderately polluted as indicated by the kinds of benthic species present and by the diversity index value. ... -
MEASUREMENT ON THE EFFECTS OF EROSION CONTROL ON AQUATIC LIFE IN THE NEMADJI RIVER AND ITS TRIBUTARIES
(1977)The influence of sedimentation and turbidity associated with erosion from the Nemadji River Basin is assumed to have deleterious effects on the aquatic biota. Studies in the past year have concentrated on identifying fish ... -
RED CLAY PROJECT ANNUAL REPORT
(1977-06-01)The Wisconsin Board of Soil and Water Conservation Districts (BSWCD) has provided services to the Red Clay Project in two program areas: the information-education program and the soil and water conservation district ... -
RED CLAY EROSION DEMONSTRATION RESEARCH SECOND ANNUAL REPORT
(1977-06-09)Vegetation cover and related factors such as litter and organic content of soil, is known to be important in controlling and/or reducing erosion rates (Meeuwig 1971). Other factors such as slope, soil particle size, ... -
DULUTH SUPERIOR HARBOR FISHERY SURVEY - PROGRESS REPORT
(1977-07-15)Field work for the Duluth-Superior Harbor Fishery Survey was initiated on 11 April. Sampling has been conducted with an electrofishing boat (generally using 250 volt, 11 amp, D.C. current), fyke nets_ (3 x 6' ... -
PROGRESS REPORT DULUTH SUPERIOR HARBOR FISHERY SURVEY
(1977-07-15)Field work for the Duluth-Superior Harbor Fishery Survey was initiated on 11 April. Sampling has been conducted with an electrofishing boat (generally using 250 volt, 11 amp D.C. current), fyke nets {3 x6' front hoop, 40' ... -
FISHERY ASSESSMENT FOR THE DOUGLAS COUNTY SUBMERGED LANDS BETWEEN ORBA AND WISCONSIN GRASSY POINT
(1977-09-30)A fishery assessment was _conducted of the embayment between the present ORBA Coal Facility and Wisconsin Grassy Point in the St. Louis Bay. These are Douglas County submerged lands (platted government lots) which are being ... -
THE APOSTLE ISLANDS: CONCENTRATION AREA FOR MIGRATORY BIRDS IN SPRING
(1977-12-15)The behavior of land bird migrants in the Apostle Islands was studied to determine the significance of these islands as stopover locations and to outline how Lake Superior affects migration patterns. Field observations ... -
FRESHWATER DATA NEEDS FOR GENERATION OF NUMERICAL FRESHWATER CRITERIA FOR SELECTED CHEMICALS
(1978)The freshwater literature on aquatic toxicity and bioconcentration/ bioaccumulation has been critically reviewed for selected chemicals as identified under Task l of work assignment no. 45. Modifications of the original ...