Lake Superior Research Institute
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The Lake Superior Research Institute (LSRI) was created in 1967 and formally recognized by the University of Wisconsin’s Board of Regents in 1969. LSRI’s mission is to conduct environmental research and provide services that directly benefit the people, industries, and natural resources of the Upper Midwest, the Great Lakes Region, and beyond; provide non-traditional learning and applied research opportunities for undergraduate students; and foster environmental education and outreach in the Twin Ports and surrounding communities.
Recent Submissions
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TEST EXPLORING THE EFFECTIVENESS OF THE ULTRASONICATOR INVASIVE SPECIES WATER TREATMNET FOR BALLAST WATER MANAGEMNET
(2022-06-06)This technical report presents findings from bench-scale evaluation of the ultrasonicator invasive species water treatment developed by UPIR LLC to inactivate aquatic organisms. This evaluation was the first attempt to ... -
COMPARISON OF COPPER, LEAD AND ZINC TOXICITY TO FOUR ANIMAL SPECIES IN LABORATORY AND ST. LOUIS RIVER WATER
(1983)A study was conducted to compare the toxicities of copper, lead and zinc in laboratory water with their respective toxicities in water from the St. Louis River. St. Louis River water was collected upstream of major ... -
TRANSPORT OF TOXIC SUBSTANCES INTO LAKE SUPERIOR BY SUSPENDED SOLIDS
(1983-10)A primary threat to Great Lakes sport and commercial fisheries arises from contamination problems due to the introduction of certain xenobiotic chemicals in aquatic environments. Of particular concern are hydrophobic ... -
SEVEN-DAY LARVAL FATHEAD MINNOW TOXICITY TEST WITH ZINC AND COPPER IN LAKE SUPERIOR WATER
(1983-08-19)7-Day Toxicity Tests with Zn and Cu were completed using larval fathead minnows. The results presented below are preliminary based upon nominal concentrations. A final report will be provided upon completion of the ... -
TOXICITY OF PHENANTHRENE TO SEVERAL FRESHWATER SPECIES
(1986-12)Phenanthrene is a by-product of fossil fuel combusion. It is a constituent of coal tars and has been detected in the stack gases of both oil- and coal-fired power and manufacturing plants. The purpose of this study ... -
TESTS EXPOLORING THE EFFECTIVENESS OF ELECTRON BEAM TREATMENT FOR BALLAST WATER MANAGEMENT
(2022-03-25)This technical report presents findings from bench-scale tests evaluating the ability of electron beam treatment to inactivate aquatic organisms. This evaluation was the first attempt to assess the electron beam treatment ... -
ANALYSIS OF ST. LOUIS RIVER WATER SAMPLED FROM UPSTREAM AND DOWNSTREAM SITES - JANUARY THROUGH JUNE 1983
(1983)The Center for Lake Superior Environmental Studies was requested to measure the concentration of selected trace metals in St. Louis River water. It was suggested that an upstream and harbor site be sampled on several ... -
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, ... -
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 ... -
Morphological and Molecular Techniques to Support Detection and Management of Ballast-Borne AIS
(2022-03)Aquatic invasive species (AIS) released from ship ballast water threaten aquatic ecosystems. A unique opportunity to couple molecular and microscopic techniques is investigated to understand risk-release relationships in ... -
LAND-BASED EVALUATION OF THE EFFECTIVENESS OF THE BAWAT BALLAST WATER MANAGEMENT SYSTEM MK2-MOBILE TREATMENT UNIT
(2022-03-09)This technical report represents the land-based evaluation of the Bawat Ballast Water Management System (BWMS) Mk2 – Mobile Treatment Unit, developed by Bawat A/S Agern Alle, 2970 Horsholm, Denmark (www.bawat.com). This ... -
Analysis of the Vegetative Cover of the Brule River Watershed Re-Visited (1852-2016) Phase I
(2018-03)As early as the 1880’s, the Bois Brule River was known as an outstanding cold water trout stream, attracting anglers from around the world, including presidents of the United States. By the 1930’s landowners, visitors, ... -
EVALUATION OF SEDIMENTS FROM THE ASHLAND HARBOR LAKEFRONT SITE FOR TOXICITY TO HYALELLA AZTECA, PIMEPHALES PROMELAS, CHIRONOMUS DILUTUS, AND LUMBRICULUS VARIEGATUS EXPOSED IN A VARIETY OF BIOASSAYS
(2006-04)The University of Wisconsin-Superior’s Lake Superior Research Institute (LSRI) contracted with URS to evaluate sediments from the Ashland Lakefront site for toxicity toward several species of benthic invertebrates and ... -
ZINC ANALYSES OF WATER FROM TOXICITY TESTS CONDUCTED IN OWATONNA, MN DURING SUMMER OF 1983
(1983-07-21)The following are results of acidified water samples received from the ERL-0 for zinc analysis (acid-exchangeable). Analysis was performed according to guidelines in ''Methods for Chemical Analysis of Water and Wastes11 ... -
RAISIN RIVER/MONROE HARBOR SURVEY I / JULY 12-19, 1983
(1983-08-12)Fathead minnows, 24 hr old, were shipped air freight from the EPA laboratory in Newtown, OH. The larval fathead minnows were exposed to 10 water sources from the Raisin River/Monroe Harbor area of southeastern MI. They ... -
Temperal Changes in the Feeding of Rainbow Smelt, Osmerus mordax (Mitchill), in Western Lake Superior
(1980)Rainbow smelt, Osmerus mordaz (Mitchill), represent the dominant species in Lake Superior. Smelt feed upon zooplankton and macroinvertebrates including the opossum shrimp, Mysis relicta and the amphipod, Pontoporeia affinis ... -
LAND-BASED EVALUATION OF THE EFFECTIVENESS OF THE OPTIMARIN BALLAST SYSTEM IN THE GREAT LAKES
(2022-02-18)This technical report presents the land-based evaluation of the Optimarin Ballast System, Model 334/340FX2. This work was conducted to evaluate the potential of the system to be used as a flow-through water treatment method ... -
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' ... -
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 ... -
FISHERY RESOURCES OF THE SUPERIOR-DULUTH ESTUARY
(1978-11)This report is intended to present a comprehensive view of the fishery and water resources of the Superior-Duluth estuary. It is a summary of fishery investigations conducted by various agencies since 1973, including ...
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