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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Clean Boats, Clean Waters Stop the Exotic Species Invasion
(1993)Exotic Species Problems/Public Education Solutions was designed to provide those interested in stimulating efforts to protect our public waters from invasions by exotic species with the tools required to heighten ... -
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 ... -
Methods in Fish Population Analysis: Basic Tools for Understanding Aquatic Ecosystems
(1993)Much of what we know about ecosystems and the influence of human activity on them is based upon the study of individual plant and animal populations. Determining the age of population members is key to understanding the ... -
Impacts of a "Planted " Exotic species: the Rainbow Smelt Osmerus mordax
(1993)In the early 1900s, rainbow smelt were planted in the Great Lakes by the State of Michigan and the U. S. Bureau of Commercial Fisheries (p esently, the U.S. Fish and Wildlife Service). Because smelt have been around ... -
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 ... -
Fishery Resources of Northern Wisconsin
(1979-10)Fishing represents a most important recreational activity and a significant commercial enterprise in northern Wisconsin. The quality of the o:riginal resource is best defined from the writings of early travelers on ... -
The Benefits of Well-Managed Stream Corridors
(1987)The lands that border thousands of streams in Wisconsin contain unique and valuable qualities. These border lands-called riparian areas -play a critical role in protecting water quality,' soil, fish and wildlife. ... -
Natural Selection and Lake Superior Fisheries
(1982)During the past 10 years, I have spent between 20 to50 days per season on Lake Superior aboard one of the University research vessels, a commercial vessel, or sport trolling. Like most other sportsmen, I am thrilled to ... -
Apparent Response of Bluegills to Intensive Fishing
(1993)Introduction: It has been a common perception that bluegill fishing is not what it use to be. There are plenty of fish but very few big ones. Evidence accumulated during the last few years suggests intensive fishing ... -
Wisconsin Fisheries and Acid Rain
(1987)Acid rain is a reality in Wisconsin. The average acidity of rain in Wisconsin is two to four times that of unpol luted precipitation. The acidity of rain in Wisconsin is generally lower than places in the world where ... -
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 ... -
SEDIMENT-ASSOCIATED POLLUTANTS AT SELECTED GREAT LAKES SITES AND THEIR EFFECTS UPON BIOTA First Quarterly Progress Report 1 September - 30 November 1988
(1989)Progress was ade during this quarter on (1) collection and culturing of test organisms, (2) development of an invertebrate and fish bioassay facility for sediments, (3) preparation for sediment mutagenicity assays (Ames ... -
OPTIMIZING YIELD FROM WESTERN LAKE SUPERIOR COMMERICAL FISHERIES THROUGH SMELT STOCK ASSESSMENT
(1982)Acoustical and net sampling was conducted throughout western Lake Superior during 1978-1980 to obtain information on rainbow smelt (Osmerus mordax) abundance, the factors controlling smelt abundance and the influence ... -
Report of the flow-through and static acute test comparisons with fathead minnow and acute tests with an amphipod and a cladoceran
(1987-08-31)The Center for Lake Superior Environmental Studies of the University of Wisconsin-Superior, Superior, Wisconsin 54880 has completed acute toxicity tests with eighteen organic compounds. Fathead minnows, Pimephales ... -
ENVIRONMENTAL CONTAMINANTS IN FISH DIETS OF LAKE SUPERIOR CHIPPEWA
(1993)Walleye, lake trout, siscowet trout, and whitefish were obtained in two collections from Apostle Islands National Lakeshore (AINL) as a representative sample of fish consumed by the Red Cliff Band of Lake Superior ... -
TOXICITY, BIOCONCENTRATION, AND METABOLISM OF FIVE HERBICIDES IN FRESHWATER FISH
(1985)Acute and early life-stage toxicities were determined for the herbicides alacblor, bromacil, dinoseb, diuron, and propanil with the fathead minnow (Pimephales promelas). Uptake, bioconcentration potential, and elimination ... -
TRIFLURALIN: ACUTE TOXICITY TO THE MIDGE, CHIRONOMUS TENTANS, UNDER FLOW-THROUGH CONDITIONS
(1991-03-19)The test substance trifluralin, a,a,a-trifluro-2,6-dinitro-N,N-dipropyl-p toluidine, is a yellow-orange crystal that is used commercially as a herbicide. Its solubility in water is less than 1 mg/L (Farm Chemicals ... -
TRIFLURALIN: ACUTE TOXICITY TOE THE MAYFLY, HEXAGENIA LIMBATA, UNDER FLOW-THROUGH CONDITIONS
(1991-03-19)The test substance trifluralin, a,a,a-trifluro-2,6-dinitro-N,N-dipropyl-p-toluidine is a yellow-orange crystal that is used commercially as an herbicide. It is used as a selective preemergence herbicide. Its solubility ... -
TOXICITY, BIOCONCENTRATION AND METABOLISM OF SELECTED CHEMICALS IN AQUATIC ORGANISMS
(1980)PROJECT OBJECTIVES This study will provide information for an assessment of (1) the hazard potential of selected organic compounds for freshwater organisms, and (2) the use of aquatic organisms as biological screening ... -
TOWARD DEVELOPMENT OF A GREAT LAKES RELEVANT BWMS TESTING PROTOCOL: USE OF STAINS TO ASSESS VIABILITY OF RESTING STAGES
(2023-04-27)United States Coast Guard and International Maritime Organization rules developed to minimize the spread of aquatic nuisance species (ANS) in the ballast of commercial ships regulate indicator microbes, protists and ...
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