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Articles 28261 - 28290 of 30875
Full-Text Articles in Entire DC Network
Some Lake Level Control Alternatives For The Great Salt Lake, Marvin E. Allen, Ronald K. Christensen, J. Paul Riley
Some Lake Level Control Alternatives For The Great Salt Lake, Marvin E. Allen, Ronald K. Christensen, J. Paul Riley
Reports
Fluctuations of the level of the Great Salt Lake cause large changes in both surface area and shoreline. Developments adjacent to the lake have been damaged by both high and low lake levels; and unless measures are implemented to regulate lake level fluctuations or otherwise to protect these developments, damages will continue. Various possible managment alternatives for mitigating potential damages from lake level fluctuations need to be examined and evaluated. In this study, three possible techniques are examined for reducing damages from fluctuating water levels at the lake, namely: 1. Consumptively using an increased proportion of the inflowing fresh waters …
Limiting Swine Stress With Evaporative Cooling In The Southeast, Robert L. Fehr, K. T. Priddy, Samuel G. Mcneill, Douglas G. Overhults
Limiting Swine Stress With Evaporative Cooling In The Southeast, Robert L. Fehr, K. T. Priddy, Samuel G. Mcneill, Douglas G. Overhults
Biosystems and Agricultural Engineering Faculty Publications
Three-hourly weather data for 7 locations in the Southeast and Central United States were used to evaluate the feasibility of evaporative cooling for reducing swine stress. Stress was defined as a relationship between dry and wet bulb temperatures which exceeded a stress index of 85. This analysis indicates that properly installed evaporative coolers could reduce the number of hours that stress would occur in swine facilities from 89.6 to 96.4% depending on location.
Growth And Activity Of Juvenile Mosquitofish: Temperature And Ration Effects, Wayne A. Wurtsbaugh, J. Cech
Growth And Activity Of Juvenile Mosquitofish: Temperature And Ration Effects, Wayne A. Wurtsbaugh, J. Cech
Watershed Sciences Faculty Publications
The effects of constant temperatures (10, 15, 20, 25, 30, and 35 C) and ration size on the growth rates and activity of juvenile mosquitofish Gambusia affinis (mean wet weight, about 20 mg) were measured in laboratory experiments. On ad libitum rations of Tubifex spp. worms, food-consumption rates of mosquitofish were very high, ranging from 7% dry body weight/day at 10 C to 83%/day at 35 C. Growth increased from 0% dry body weight/day at 10 C to 21%/day at 30 C and declined slightly at 35 C. Gross efficiencies (100 growth/food consumption) increased from 0 at 10 C to …
Birds On Modified Wetlands In Eastern South Dakota, E. Nell Brady
Birds On Modified Wetlands In Eastern South Dakota, E. Nell Brady
Electronic Theses and Dissertations
To examine the role of bird species (other than Anatidae) in the prairie wetlands ecosystem. Seven wetlands on Waterfowl Production Areas in eastern South Dakota were utilized to measure differences between bird communities in plots with dug brood complexes and non-modified plots. Thirty-eight species of wetland birds were recorded on wetlands during June 1981 and June 1982. The most abundant species included the red-winged blackbird (Agelaius phoeniceus), marsh wren (Cistothorus palustris), and song sparrow (Melospiza melodia). Analysis of variance was used to test between treatment (modified and natural plots on the wetlands) differences for the dependent variables: density, bird species …
Recreational Use Of Six Prairie Wetlands In Eastern South Dakota, Timothy Allen Thompson
Recreational Use Of Six Prairie Wetlands In Eastern South Dakota, Timothy Allen Thompson
Electronic Theses and Dissertations
A recreational use survey was conducted at 6 public wetlands in eastern South Dakota from August 9, 1981 through August 8, 1982. Four hundred and fifty-eight postcard questionnaires were placed on vehicles encountered at these marshes during random time periods. Two hundred and thirty-five were voluntarily returned for a response rate of 51.3%. Approximately 10, 020 people made 4,778 trips to these wetlands and spent 63, 093 man-hours. Thirty-one different activities were observed or reported. Hunting accounted for 96.0% of all fall trips and 89.1% of yearly visits. Over 89% of all visits occurred during fall and over 50% of …
Rainbow Trout (Salmo Gairdneri) Cage Culture And Primary Production In Eastern South Dakota Dugout Ponds, Michael John Roell
Rainbow Trout (Salmo Gairdneri) Cage Culture And Primary Production In Eastern South Dakota Dugout Ponds, Michael John Roell
Electronic Theses and Dissertations
Rainbow trout (Salmo gairdneri) reared in 1 m³ cages in a South Dakota dugout pond grew and survived as well or better than most cage-cultured rainbow trout reported in the literature. Significant differences (P≤0.01) in mean length, weight, and food conversion, and similarity in relative weight between trout fed 2 and 4% of body weight daily, indicated that the optimum feeding rate was near 3% for this size range (35=100g). Daily rations based on fish size and water temperature need to be developed for trout reared in a lentic environment. The high cost of fingerlings was the limiting factor in …
Characteristics And Success Of South Dakota Archery Deer Hunters, Kelly Brian Mcphillips
Characteristics And Success Of South Dakota Archery Deer Hunters, Kelly Brian Mcphillips
Electronic Theses and Dissertations
Two mail questionnaires were sent to South Dakota archery deer hunters after the 1981 archery deer season. One questionnaire was sent to a random sample of all bowhunters, and the second was sent to a sample of bowhunters failing to return the South Dakota Department of Game, Fish, and Parks (SDGFP) mandatory big game hunter report card. Success rate of bowhunters killing deer and crippling rate of deer by bowhunters were determined. A profile of the average bowhunter was developed. The SDGFP bowhunter reporting system was evaluated. Success rates from the 2 questionnaires (29% and 19%) were significantly different from …
Water Current, Volume 15, No. 1, January/February 1983
Water Current, Volume 15, No. 1, January/February 1983
Water Current Newsletter
1983 Nebraska Water Conference
Kremer Lecture Series
Hamon Speaks at Seminar
Water Bills Introduced
Missouri Basin Planning Seminar
Energy Conservation in Irrigation
Water and Soil Conservation Needed
Federal Water Research Funds
Effects Of Sewage Pollution In The White River, Arkansas, Arthur V. Brown, Lawrence D. Willis, Peter P. Brussock
Effects Of Sewage Pollution In The White River, Arkansas, Arthur V. Brown, Lawrence D. Willis, Peter P. Brussock
Journal of the Arkansas Academy of Science
Recently there has been much emphasis placed on the importance of leaf detritus processing to the energetics of stream invertebrates. This study was designed primarily to assess the effects of municipal effluent on the ability of a stream community to utilize leaf detritus, and secondarily to evaluate the extent of the pollution of the White River by the Fayetteville, Arkansas, effluent discharge. Physical and chemical water quality and benthos were sampled periodically at one station upstream and two stations downstream from the discharge, and in the Richland Creek tributary. Processing of leaf detritus was also studied at each site using …
A Study Of Sensitive Lands In Provo, Doris R. Monson
A Study Of Sensitive Lands In Provo, Doris R. Monson
Theses and Dissertations
Sensitive lands are being developed in great quantity. Because of problems caused by the development of sensitive lands, Provo City has developed land use ordinances. This thesis examines the development of Provo's ordinances along with the development of its sensitive lands. It determines ways that the city can strengthen their land use ordinances and avoid some of the problems found in sensitive land development.
Raw Water Quality In The New Charleston, Illinois Pump Storage Reservoir, Kevin G. Lookis
Raw Water Quality In The New Charleston, Illinois Pump Storage Reservoir, Kevin G. Lookis
Masters Theses
Charleston, Illinois, a city located in east-central Illinois, recently implemented a new concept in a raw water system. Due to storage capacity-sedimentation problems in the old Lake Charleston-Embarras River raw water supply, the Charleston Pump Storage Reservoir was constructed. The new system involved building a dike separating the Lake Charleston impoundment from the Embarras River. Water to increase the storage capacity of the reservoir can now be selectively pumped into the impoundment from the river.
Raw water quality in the reservoir was monitored on a weekly basis for a full year from August, 1981 to August, 1982. The levels of …
Conjunctive Water Use Planning With Water Quality Constraints In Tooele Valley, Utah, Bhasker Rao K., Calvin G. Clyde, Rangesan Narayanan
Conjunctive Water Use Planning With Water Quality Constraints In Tooele Valley, Utah, Bhasker Rao K., Calvin G. Clyde, Rangesan Narayanan
Reports
The need for more efficient water management is gaining recognition due to the increased cost of water supply, the growth in the demand for water, and greater environmental and social impacts of water programs. "Conjunctive use" of surfact and groundwater resources provides opportunities for increasing net benefits to the water users. Past "conjunctive use" studies, however, have usually not included water quality constraints. In Tooele valley, Utah, spatial variation of groundwater qualtity (total dissolved solids) is significant. The areas of good (400-500 mg/1), fair (500-1,000 mg/1), and poor (1,000-3,000 mg/1) quality groundwaters were identified in an earlier study by the …
An Economic Evaluation Of Benefits And Costs Of Maintaining Instream Flows, Rangesan Narayanan, Dean T. Larson, A. Bruce Bishop, Parvaneh Amirfathi
An Economic Evaluation Of Benefits And Costs Of Maintaining Instream Flows, Rangesan Narayanan, Dean T. Larson, A. Bruce Bishop, Parvaneh Amirfathi
Reports
Instream flows enhance recreation, hydropower, fish and wildlife maintenance, and riverine ecosytems. Each use has water requirements that vary over time in unique patterns. The determination of the overall instream requirement at any given time must be considered in competition with the demand for municipal and agricultural uses. Two obstacles to integrating instream uses into the appropriation system of water law are difficulty in satisfying the legal requirements of an appropriation for a public use and the fact that instream flow uses are considered more "environmental" than "economic" in character. The extreme options for allocating flow between these user groups …
A Survey Of Recreational Boating In Newport Harbor, David Dean Burrage
A Survey Of Recreational Boating In Newport Harbor, David Dean Burrage
Marine Affairs Theses and Major Papers
This is a study of the recreational boating industry in Newport Harbor, Rhode Island. It is a facility inventory study as well as a consumer attitude and perception study. In these respects, it amounts to a market survey. Prior to this work, the firms in this city which deal with recreational boaters had no conception of the number of users or geographic area influenced by the services they proffered. There was a need to know if the consumers of these services perceived various problems in Newport Harbor. Among these problems were such things as crowding, pollution, conflicts between user groups, …
Beach Ownership And Public Access In Massachusetts, Mark Harlow Robinson
Beach Ownership And Public Access In Massachusetts, Mark Harlow Robinson
Marine Affairs Theses and Major Papers
No abstract provided.
Mammals Of The Northern Great Plains, J. Knox Jones Jr., David M. Armstrong, Robert F. Hoffmann, Clyde Jones
Mammals Of The Northern Great Plains, J. Knox Jones Jr., David M. Armstrong, Robert F. Hoffmann, Clyde Jones
University of Nebraska State Museum: Mammalogy Papers
For the purposes of this book, the Northern Great Plains are defined as the states of Nebraska, North Dakota, and South Dakota. As a physiographic concept, the northern part of the great interior grasslands of North America is, of course, much broader in geographic extent than the Dakotas and Nebraska, but the three states lie in the heart of the region, and thus the title for this work seems appropriate. Our expectations in writing Mammals of the Northern Great Plains were to provide a comprehensive, yet semitechnical, treatmeat of free-living mammals that would prove useful to specialist and nonspecialist alike. …
A Brief Study Of Land Capability In The Coastal Region Of The Shire Of Harvey, Department Of Agriculture, Western Australia. Soil Conservation Service, M R. Wells, P A. Hesp
A Brief Study Of Land Capability In The Coastal Region Of The Shire Of Harvey, Department Of Agriculture, Western Australia. Soil Conservation Service, M R. Wells, P A. Hesp
Resource management technical reports
No abstract provided.
Agricultural Water Quality Criteria : Irrigation Aspects., P R. George
Agricultural Water Quality Criteria : Irrigation Aspects., P R. George
Resource management technical reports
Water quality criteria for irrigation are imprecise. The final result of quality evaluation depends on plant, soil and climatic variables all of which can be inter-dependent. A range of management strategies of varying complexity are available to mitigate the effects of poor quality water. The heavy winter rainfall in the south-west of Western Australia affects the applicability of published salinity criteria most of which have been developed in arid and semi-arid environments with little effective rainfall.
The Probe, Issue 27 - December 1982
The Probe, Issue 27 - December 1982
The Probe: Newsletter of the National Animal Damage Control Association
THE PROBE National Animal Damage Control Association December, 1982
BROMETHALIN
Vampire bat-rabies problem on cattle in Latin America.
BIRDS CELEBRATE A SILENT FOURTH OF JULY
Problems with native deer on the exotic game preserve in connection with the Florida deer hunt fiasco.
PEST CONTROL magazine: Do Animals Have Rights?
Kitty Poo Cat Potty.
FUR HARVESTING AND PREDATOR CONTROL
LETTERS TO YE ED
RABIES
Volume 6, Number 12 (December 1982), The Solar Ocean Energy Liaison
Volume 6, Number 12 (December 1982), The Solar Ocean Energy Liaison
The OTEC Liaison
No abstract provided.
The Application Of Laser Intracavity Absorption Detector To Gas Chromatography Of Trace Organic Pollutants In Water, Robert B. Green
The Application Of Laser Intracavity Absorption Detector To Gas Chromatography Of Trace Organic Pollutants In Water, Robert B. Green
Arkansas Water Resources Center Technical Reports
A helium-neon (HeNe) laser operating simultaneously at 3.39 um (infrared) and 0.63 um (visible) has been used as a selective detector for hydrocarbons in the effluent of a gas chromatograph. The infrared and visible laser transitions originate at the same energy level and are competitive. When a hydrocarbon enters the laser's resonant cavity, the 3.39 um energy is absorbed due to the C-H stretching vibration and the visible emission is enhanced. The visible laser emission is monitored with a photodiode as a quantitative measure of the concentration of the absorbing molecule. The minimum detectable concentration for propane using the double-beam …
The Prairie Naturalist Volume 14, No. 4. December 1982
The Prairie Naturalist Volume 14, No. 4. December 1982
The Prairie Naturalist
THE MICROBIAL AND VEGETATIONAL RESPONSE TO FIRE IN THE LYNX PRAIRIE PRESERVE, ADAMS COUNTY, OHIO ▪ A. E. Annala and L. A. Kapustka
ASPECTS OF BEHAVIOR IN FREE-RANGING BARBARY SHEEP (AMMOTRAGUS LERVIA) G. G. Gray and C. D. Simpson
HOME RANGES OF MULE DEER BUCKS IN THE TEXAS PANHANDLE ▪ B. H. Koerth and F. C. Bryant
DETERMINING SEX OF PLAINS POCKET GOPHERS BY INCISOR WIDTH ▪ R. M. Case and A. B. Sargeant
BOOK REVIEWS:
On Counting Birds ▪ S. A. Mikol
Freshwater Marshes ▪ R. M. Kaminiski
NOTICE TO AUTHORS ▪ Editor
INDEX TO VOLUME 14 …
Shire Of Manjimup : A Brief Assessment Of The Physical Land Resources With Respect To Horticultural Land Use, M R. Wells, K E. Hawley
Shire Of Manjimup : A Brief Assessment Of The Physical Land Resources With Respect To Horticultural Land Use, M R. Wells, K E. Hawley
Resource management technical reports
No abstract provided.
Volume 6, Number 11 (November 1982), The Solar Ocean Energy Liaison
Volume 6, Number 11 (November 1982), The Solar Ocean Energy Liaison
The OTEC Liaison
No abstract provided.
John Muir Newsletter, November/December 1982, Holt-Atherton Pacific Center For Western Studies
John Muir Newsletter, November/December 1982, Holt-Atherton Pacific Center For Western Studies
Muir Center Newsletters (1981-2015)
Holt-Atherton Pacific Center for Western Studies University of the Pacific Stockton, Calif 95211 VOLUME 2 NOVEMBER/DECEMBER 1982 NUMBER 4 EDITORIAL STAFF: RONALD H. LIMBAUGH, KIRSTEN E. LEWIS FUNDING UPDATE Christmas came in November for the John Muir Papers Microform Project. On November 16 we received word from Oakland, California, that the Muir Project had been awarded a $10,000 grant from the L.J. Skaggs and Mary C. Skaggs Foundation, a private agency which supports many environmental and educational activities. At the end of the month we received a call from N.H.P.R.C. headquarters in Washington, informing us that the Publications and Records …
Evaluation Of Low-Temperature Geothermal Potential In Cache Valley, Utah, Janet L. De Vries
Evaluation Of Low-Temperature Geothermal Potential In Cache Valley, Utah, Janet L. De Vries
All U.S. Government Documents (Utah Regional Depository)
The purpose of this research was to continue the assessment of the low-temperature geothermal resources of Cache Valley, Utah initiated by the Utah Geological and Mineral Survey under U.S. Department of Energy (DOE) contract DE-AS07-77ET 28393. Field work consisted of locating 90 wells and springs throughout the study area, collecting water samples for later laboratory analyses, and field measurement of pH, temperature, bicarbonate alkalinity, and electrical conductivity. Na+, K+, Ca+2, Mg+2, SiO2, Fe, SO4-2, C1-, F-, and total dissolved solids were determined in the laboratory. Temperature profiles were measured in 12 additional, unused wells. Thermal gradients calculated from the profiles …
Water Current, Volume 14, No. 6, November/December 1982
Water Current, Volume 14, No. 6, November/December 1982
Water Current Newsletter
Water Seminars to Begin in January
1983 Nebraska Water Conference
Irrigation Short Course in January
Research Review: Water and Energy Conservation Using Center Pivot Irrigation and Reduced Tillage Systems
Paper Presented on Nitrates in Groundwater
NWRC Conference Held in Kearney
Water Resources Expertise Directory Compiled
Water Financing Needs Discussed
Call for Papers
Editor Resigns
The Probe, Issue 26 - November 1982
The Probe, Issue 26 - November 1982
The Probe: Newsletter of the National Animal Damage Control Association
THE PROBE National Animal Damage Control Association November, 1982
THE STATE OF THE UNION
Deer problem in the Everglades
Survey on mammal problems at airports
ENDRIN IN ORCHARDS
Rupert Beaver Farms (Heyburn, ID) had to declare bankruptcy as it was costing too much
Wildlife Legislative Fund of America (WLFA)
ERADICATE, SUPPRESS, DESTROY by Jim Doherty
A 14-year old boy herding his father's goats in Natal, South Africa was suddenly surrounded by a python.
Using donkeys to protect sheep from dogs and coyotes.
New Mexico Cattle Grower's Association
Preliminary trials of various commercial ultrasonic rodent repellent devices were unsuccessful.
OL' TIMER'S …
State Of The Fisheries Report 1981, Department Of Fisheries And Wildlife, Western Australia
State Of The Fisheries Report 1981, Department Of Fisheries And Wildlife, Western Australia
Status Reports of the Fisheries and Aquatic Resources
Western Australia continues to be one of the leading fishing States in Australia. The total gross value of fish, crustaceans and molluscs for 1980/81 was $82.8 million (Table 1) to which may be added the value of the pearl culture industry resulting in a total value of approximately $100 million.
Volume 6, Number 10 (October 1982), The Solar Ocean Energy Liaison
Volume 6, Number 10 (October 1982), The Solar Ocean Energy Liaison
The OTEC Liaison
No abstract provided.