Browsing Lake Superior Research Institute by Title
Now showing items 106-125 of 261
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THE EFFECTS OF RED CLAY TURBIDITY AND SEDIMENTATION ON AQUATIC LIFE IN THE NEMADJI RIVER SYSTEM
(1978-10-03)Red clay erosion in southwestern Lake Superior has been a natural process along shorelines and in tributary streams and rivers since decline of lake levels following the Pleistocene period. Exposure of the unconsolidated ... -
Effects of South Shore Drainage Basins and Clay Erosion on the Physical and Chemical limnology of Western Lake Superior
(1972)A chemical and geological investigation of Lake Superior waters and sediments is presented. The study area extends from Superior, Wisconsin to Amnicon Point, Wisconsin, a distance of eight miles. Sampling was enacted on ... -
THE EFFECTS OF WATER HARDNESS, Ph, CHLORIDE AND SULFATE SALTS, AND DISSOLVED ORGANIC MATTER ON THE TOXICITY OF SILVER TO FATHEAD MINNOWS (PIMEPHALES PROMELAS)
(1992-05-02)A relationship between water hardness and the toxicity of silver to aquatic organisms was reported in the National Water Quality Criteria for the Protection of Aquatic Life for Silver document (EPA 440/5-80-071 or PB81- ... -
THE EFFECTS OF WATER HARDNESS, Ph, CHLORIDE AND SULFATE SALTS, AND DISSOLVED ORGANIC MATTER ON THE TOXICITY OF SILVER TO FATHEAD MINNOWS (PIMEPHALES PROMELAS)
(1992-05-02)A relationship between water hardness and the toxicity of silver to aquatic organisms was reported in the National Water Quality Criteria for th Protection of Aquatic Life for Silver document (EPA 440/5-80-071 or PB81- ... -
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 ... -
ENVIRONMENTAL EFFECTS OF HARBOR DREDGING ASHLAND HARBOR
(1973-12-15)Unlike the semi-protected harbor located in the Duluth and Superior area, the Ashland Harbor lies open to Lake Superior. Geographically it is sited on the southeast border of Chequamegon Bay, a natural embayment wedged ... -
ENVIRONMENTAL EFFECTS OF HARBOR DREDGING DULUTH-SUPERIOR
(1973-12-15)The Duluth-Superior harbor is a natural port created as a result of the formation of a unique bay mouth sand bar which, over a period of years, has been modified into two points .of land termed Minnesota and Wisconsin ... -
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 ... -
ENVIRONMENTAL PROBLEMS VERSUS ECONOMICS ASSOCIATED WITH A DEVELOPING INTERNATIONAL PORT AREA (OPERATION SHIPSHAPE)
(1975-07-31)Lying in the extreme northwest section of the State of Wisconsin is Douglas County (1970 population of 44,657) and its principle city, Superior (1970 population of 32,202). Major employees located within the city of ... -
ENVIRONMENTAL SURVEY, LITTLE SAND BAY HEADQUARTERS SITE, APOSTLE ISLANDS NATIONAL LAKESHORE, WISCONSIN
(1974-10-30)These investigations were to include topographic relief, drainage and reconnaissance soil analyses (type and depth) and a determination of the water quality of the streams and inland bodies of water of the specific study ... -
ESTIMATES OF "NO EFFECT" CONCENTRATIONS OF SELECTED PESTICIDES IN FRESHWATER ORGANISMS (YEAR II) 1 April 1979 - 31 March 1980
(1980)Work began on thirteen assigned chemicals to determine acute and chronic toxicities bioconcentration, and'metabolism in freshwater organisms. The assigned chemicals for testing are as follows: di-2-ethylhexylphthalate, ... -
ESTIMATES OF "NO EFFECT" CONCENTRATIONS OF SELECTED PESTICIDES IN FRESHWATER ORGANISMS (YEAR III) 1 April 1980 - 23 May 1981
(1981)Toxicity tests with 18 chemicals and 3 species of test organisms were completed during the quarter for a total of 19 tests. Seventeen tests were acute exposures and one was an algal assay. Seven tests were with alcohols, ... -
Evaluating a Most Probable Number Method for Assessing the Viability of Great Lakes Protists
(2024-04-11)To support type approval testing of ballast water management systems we evaluated freshwater viability assessments for protists from the Duluth-Superior harbor of western Lake Superior using the most probable number (MPN) ... -
EVALUATION OF AQUATIC SEDIMENT FOR TOXICITY TO CHIRONOMUS TENTANS IN A 10 DAY EXPOSURE AND TO HYALELLA AZTECA IN A 28 DAY EXPOSURE
(2000-01-07)The Lake Superior Research Institute (LSRI) contracted with Blasland, Bouck & Lee, Inc. to evaluate sediment samples from eight sites (three reference and five non reference) for toxicity toward two species of benthic ... -
EVALUATION OF EQUILIBRIUM PARTITIONING SEDIMENT QUALITY CRITERIA
(1997-06)Aquatic sediments serve both as a sink and a source for numerous inorganic and organic pollutants that have been released into the environment. In the Great Lakes, sediment contamination is of primary concern in the vast ... -
EVALUATION OF SEDIMENT FOR TOXICITY AND BIOACCUMULATION OF LEAD
(1999-11-30)The Lake Superior Research Institute (LSRI), contracted with Blasland, Bouck & Lee, Inc. to measure lead concentrations in samples from seventeen sites and to evaluate the toxicity of sediment samples from ten of these ... -
EVALUATION OF SEDIMENT FROM NEW YORK STATE (ALCOA SITE) FOR TOXICITY AND BIOACCUMULATION OF LEAD
(1999-09-30)The Lake Superior Research Institute (LSRI), contracted with Blasland, Bouck & Lee, Inc. to measure lead concentrations in seventeen samples and evaluate the toxicity of sediment samples from ten of these sites (Alcoa Site) ... -
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 ... -
EXPLORING OPTIONS FOR REAL-TIME WATER QUALITY MONITORING WITHIN GREAT LAKES PORTS
(2023-04-10)This technical report presents findings from the exploration of available environmental monitoring sensors, the piloting experience of long-term field deployment of the Proteus multiparameter sonde developed by Proteus ... -
Fathead minnow early life-stage toxicity tests wtih dinoseb and caroburan
(1987-07-06)We have completed fathead minnow early life-stage toxicity tests on the University campus with dinoseb and carbofuran. These were flow-through tests with measured concentrations of toxicants.