Browsing Lake Superior Research Institute by Issue Date
Now showing items 1-20 of 258
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Toxicity of Silver to Fathead Minnows at Three Values of pH
(1922-04-27)Simultaneous renewal acute toxicity tests were conducted exposing fathead minnows (Pimephales promelas) to silver at three pH levels. The purpose of the tests was to determine if pH of the water affected the toxicity of ... -
Comparison of U.S. and Russian Agriculture
(1964)The Soviet Union is the world’s third largest producer of cotton, growing approximately one-eighth of the world’s total annual productions of cotton. The country’s average yield of lint per acre in 1964 was the world’s ... -
IMPORTANCE OF THE BOIS BRULE RIVER TO THE RECENT SEDIMENTAION HISTORY OF WESTERN LAKE SUPERIOR
(1969)As part of an interdisciplinary survey of Douglas County, Wis., and under the auspices of the University of Wisconsin Water Resources Center, the Bois Brule was singled out for a geological analysis of material constituting ... -
EFFECT OF TEMPERATURE ON OSMOREGUATION OF FRESHWATER POIKILOTHERMS
(1969-03-08)Much work has been done during the past few years showing that as the temperature of an organism changes, either upward or down, ionic equilibrium is disturbed within this organism. The degree of disturbance has been shown ... -
EFFECT OF TEMPERATURE ON OSMOREGULATION OF FRESHWATER POIKILOTHERMS
(1969-05-08)Much work has been done during the past few years showing that as the temperature of an organism changes, either upward or down, ionic equilibrium is disturbed within this organism. The degree of disturbance has been ... -
DEPOSTITIONAL ENVIRONMENTS OF LAKE SUPERIOR SANDS THROUGH GRAIN SIZE ANLYSIS
(1970)As part of the problem of recognizing and reconstructing paleo"' environments of arenaceous units in western Lake Superior, grain size parameters of modern fluvial, littoral and inner neritic ... -
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 ... -
INFLUENCE OF TURBIDITY ON FISH ABUNDANCE IN WESTERN LAKE SUPERIOR - SECOND QUARTER REPORT
(1973)Effects of turbidity on fish abundance in Western Lake Superior are being studied through. field investigations aimed at measuring effects on species composition, distribution, feeding, mortality, growth ... -
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 ... -
WISCONSIN'S LAKE SUPERIOR BASIN WATER QUALITY STUDY
(1974-04-30)During the period extending from May 1972 through April 1973 a joint investigation of the overall water quality conditions of streams flowing into Lake Superior from the entire State of Wisconsin was conducted by the ... -
A STUDY OF THE POLLUTION LEVELS AND DEPTHS WITHIN SUBSURFACE CORES COLLECTED DURING PRELIMINARY INVESTIGATIONS FOR THE PROPOSED ARROWHEAD BRIDGE
(1974-08-29)In a study completed in December 1973 by National Biocentric, Inc.· of Saint Paul for the U.S. Army Corps of Engineers, sediments collected during the preceding summer within the Duluth-Superior harbor at the water-sediment ... -
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 ... -
CHEMICAL EFFECTS OF RED CLAYS ON WESTERN LAKE SUPERIOR - FINAL REPORT
(1975)This project is concerned with expansion of the sparse information currently available pertaining to the chemical effects of red clay erosion on western Lake Superior and certain of its tributary streams. A major part of ... -
PHYSICAL AND BIOLOGICAL PARAMETERS, LITTLE SAND BAY, APOSTLE ISLANDS NATIONAL LAKESHORE, AND RELATIONSHIPS TO VARIOUS DOCKING DESIGNS
(1975-01-25)This report, the second of a sequence, was compiled during the period 4 September, 1974 to 31 January 1975, by personnel of the Center of Lake Superior Environmental Studies (CLSES) of the University of Wisconsin, ... -
WISCONSIN'S LAKE SUPERIOR BASIN WATER QUALITY STUDY
(1975-04-30)Within the four county area of Douglas, Bayfield, Ashland and Iron, located in extreme northwestern Wisconsin, lies an area richly endowed in clean lakes, inviting forests, healthy air and clear streams. The most ... -
THE EFFECTS OF RED CLAY EROSION ON ORTHOPHOSPHATE LEVELS IN SOUTHWESTERN LAKE SUPERIOR
(1975-05-20)The effects of the erosion of red clay deposits along the northwestern Wisconsin shoreline area on orthophosphate inputs into Lake Superior was investigated. Using clay soil and river particulate samples, exchange ... -
Western Lake Superior Basin Erosion - Sedimentation Control Program Wisconsin and Minnesota / First Annual Report
(1975-09)While the purpose of an annual Project report is to evaluate the accomplishments of the past year in relation to a base line, this report, because of time frame will address the Project more in terms of a narrative. At ... -
Geochemical Relationships Between Lake Superior and Its Tributary Streams With-in the Superior-Cornucopia Red Clay Province, Wisconsin
(1975-11-24)The sedimentation and water quality characteristics of seven Northwestern Wisconsin Lake Superior tributary streams are presented. A large portion of the drainage basins of these streams is located in the Valder's red ... -
RED CLAY SLOPE STABILITY FACTORS FINAL REPORT
(1976)Data collected in this investigation outlines the mineralogical character and range of mechanical behavior of the red clay and establishes the Little Balsam drainage as representative of many of the geologic and engineering ...