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Articles 28951 - 28980 of 30809
Full-Text Articles in Entire DC Network
Water Current, Volume 10, No. 4, July/August 1978
Water Current, Volume 10, No. 4, July/August 1978
Water Current Newsletter
State Water Planning Process to Address Policy Issue Analysis
Deadline for Submitting Matching Grant Proposals
Conference on Water Data Programs and Needs
Staff Members to Present Papers
Newspaper Clippings Available
Water Resources Center Plans Exhibit at Nebraska State Fair
Water Resources in Nebraska
MRBC Governors Adopt Three Resolutions
Antarctic Mountain Peak Named for USGS Scientist
Research Review: Physiological Aspects of Plant Water Use Efficiency
"Environmental Simulation And Long-Term Planning", Michael A. Arbib
"Environmental Simulation And Long-Term Planning", Michael A. Arbib
Special Collections: Oregon Public Speakers
With Cooper, W. Ecosystems.
"Toxic Chemicals In The Environment", William E. Cooper
"Toxic Chemicals In The Environment", William E. Cooper
Special Collections: Oregon Public Speakers
Presented and recorded with Arbib, M. A., "Environmental Simulation and Long-Term Planning."
"Ecosystems", William E. Cooper
"Ecosystems", William E. Cooper
Special Collections: Oregon Public Speakers
From a lecture series with M.A. Arbib, "Environmental simulation and long-term planning."
Volume 2, Number 6 (June 1978), The Otec Liaison
Volume 2, Number 6 (June 1978), The Otec Liaison
The OTEC Liaison
No abstract provided.
Organized Resistance To An Imposed Environmental Change: A Resevoir In Eastern Kentucky, William F. Schweri Ii, John Van Willigen
Organized Resistance To An Imposed Environmental Change: A Resevoir In Eastern Kentucky, William F. Schweri Ii, John Van Willigen
KWRRI Research Reports
This is a case study of a group organized to resist the construction of an Army Corps of Engineers reservoir project located in Eastern Kentucky, More specifically the account describes how a group of landowners organized themselves and enacted an increasingly complex strategy of resistance. Within this framework perceived costs, leadership and authority and group organization are considered.
The primary method employed in this research was that of repeated interviews with members of the resistance organization who were identified as key informants. These interviews were carried out on both structured and unstructured bases.
The formal analysis of the voluntary association …
A Primary Ecological Survey Of Dardanelle Reservoir Prior To Nuclear Facility Effluent Discharge, Clarence B. Sinclair, Robert L. Watson
A Primary Ecological Survey Of Dardanelle Reservoir Prior To Nuclear Facility Effluent Discharge, Clarence B. Sinclair, Robert L. Watson
Arkansas Water Resources Center Technical Reports
A preliminary ecological survey of Dardanelle Reservoir during the construction phase of Arkansas Power and Light Company's nuclear generating facility was conducted from January 1970 through June 1974. The reservoir is characterized by relatively shallow depths and a high flow-thru rate. A number of features were associated with these characteristics. The reservoir carried a great deal of suspended material and exhibited high turbidities throughout most of the year. Typical thermal stratification and oxygen depletion were only rarely observed. Many of the physico-chemical parameters exhibited relatively high values in comparison to other Arkansas lakes and reservoirs, but due to absence of …
Dredge Spoil Disposal With Particular Reference To Management Practices In Southern New England, Lynne A. Melville
Dredge Spoil Disposal With Particular Reference To Management Practices In Southern New England, Lynne A. Melville
Marine Affairs Theses and Major Papers
One-half million acres of U.S. coastal wetlands have been destroyed by dredging and filling operations since 1956. They are being destroyed at the rate of 0.5-1.0% each year. In one ten year period, Rhode Island lost 5% of its 2000 acres of wetlands to urban development, and Connecticut lost 12% of its marsh lands. Less than 1500 acres of marsh remain in Connecticut. During the course of this research project, I examined one aspect of wetland destruction - the dredging and disposal of spoil materials onto wetlands and into the coastal waters of Southern New England. What follows is a …
Water Conservation Information Dissemination During The 1997 Drought Emergency, L. Douglas James, Wade H. Andrews
Water Conservation Information Dissemination During The 1997 Drought Emergency, L. Douglas James, Wade H. Andrews
Reports
As drought conditions in 1976 and 1977 became increasingly severe throughout the west and affected many other parts of the country, many states began special drought information dissemination efforts. This study was organized to provide for the exchange of information among the respective states a forum that could reduce duplication among independent efforts. The project collected information. on: A) Water-user conservation practices, 1) domestic use, a) inside use, b) outside use, 2) industrial, 3) commercial, and 4) irrigation; B) Water-supplier management practices, 1) water conservation Inducements, 2) emergency supply augmentation, a) groundwater mining, b) water harvesting, c) water reuse, 8) …
Removal Of Chloroform From Drinking Water, John S. Zogorski, George D. Allgeier, Robert Lee Mullins Jr.
Removal Of Chloroform From Drinking Water, John S. Zogorski, George D. Allgeier, Robert Lee Mullins Jr.
KWRRI Research Reports
The overall objective of this investigation was to evaluate via laboratory experiments the technical feasibility of reducing trihalomethane levels in drinking water. Special attention was directed at the removal of chloroform since: (a) it is the only trihalomethane which has been shown to be carcinogenic in animal tests; and (b) this compound generally comprises the largest fraction of the total trihalomethane content of chlorinated waters in Kentucky. Trihalomethanes are present in municipal drinking waters due to the reaction of free chlorine with naturally occurring compounds, collectively called "precursors".
A variety of treatment processes and potential modifications (or additions) to existing …
Volume 2, Number 5 (May 1978), The Otec Liaison
Volume 2, Number 5 (May 1978), The Otec Liaison
The OTEC Liaison
No abstract provided.
Zooplankton Limnology Of Beaver And Degray Reservoirs In Arkansas, Eugene H. Schmitz
Zooplankton Limnology Of Beaver And Degray Reservoirs In Arkansas, Eugene H. Schmitz
Arkansas Water Resources Center Technical Reports
Research during the year 1975-76 continued to emphasize studies of seasonal changes in patterns of zooplankton abundance and biomass in Beaver and DeGray Reservoirs. Zooplankton samples were taken monthly from three stations on Beaver Reservoir (Figure 1) during the period May 1975 through May 1976. Collections from DeGray Reservoir were made weekly from a single station (Station 1) during the period April 1975 through December 1975. Beaver collections were obtained by taking oblique tows using a Miller sampler equipped with no. 10 mesh. The DeGray program entailed stratified vertical samples taken at 5 intervals to 20 a and 20 m …
Present Trends In The Development Of Marine Fisheries By Coastal States Of The East Central Atlantic, Ethman T. A. Golley-Morgan
Present Trends In The Development Of Marine Fisheries By Coastal States Of The East Central Atlantic, Ethman T. A. Golley-Morgan
Marine Affairs Theses and Major Papers
In order to create an incentive for a rapid development of the rural-based artisanal fisheries of coastal states, that can actively compete with large scale industrial fisheries of non-coastal states as well as coastal states of the region, some states are now moving towards an integrated approach in their development efforts. Such integrated projects will take into consideration rural development, provision of infrastructural facilities for fish handling and processing, vessel servicing, repairs and boat building. Socio-economic factors such as organization of fishermen's cooperatives, financing and marketing institutions are also vital inputs.
Water Current, Volume 10, No. 3, May/June 1978
Water Current, Volume 10, No. 3, May/June 1978
Water Current Newsletter
From the Desk of the Director
Grantsmanship Training Program Planned
Dee Creek Project Funded
Area of Excellence Review
Odgaard New Director of NWRA
National Water Policy Revealed
OWRT Appropriations
Research Review: Region-Wide Irrigation Scheduling by Local Evapotranspiration Measurement
A Discriminant Function Model Of Gray-Headed Junco Habitat, Andrew R. Grainger
A Discriminant Function Model Of Gray-Headed Junco Habitat, Andrew R. Grainger
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
This paper presents a description of gray-headed junco habitat in the form of a model based on discriminant function analysis. Junco nests were found by searching randomly located grids on a 7.8 km2 study area in central Utah. Vegetation data was gathered on 500 m2 circular plots surrounding nests and contrasted with similar data from searched grids where nests were not found. The model explains 28 percent of the between-groups variance and correctly classifies 68 percent of the plots.
Plant cover types are good predictors of areas where gray-headed juncos nest, while plant community type descriptions do not …
Conflict In Outdoor Recreation, Gerald R. Jacob
Conflict In Outdoor Recreation, Gerald R. Jacob
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The causes of conflict among users of outdoor recreation resources have received little attention from recreation researchers. Knowledge of factors responsible for conflict might assist recreation planners' attempts to reduce future instances of conflict and help management focus its conflict resolution efforts. A theory of conflict is offered as the first step in systematically procuring such knowledge. A definition and characteristics of outdoor recreation conflicts are presented; four comprehensive causes of user conflicts are proposed. Ten propositions are used to link these factors to conflict and suggest future research hypotheses. The social psychological dynamics of conflict, as described here, have …
Adaptive Significance Of Lactate Dehydrogenase B2 Isozymes In Rainbow Trout, Salmo Gairdneri And A Biochemical Genetic Comparison Of Cutthroat Trout (Salmo Clarki) Populations, Gerald Thomas Klar
Adaptive Significance Of Lactate Dehydrogenase B2 Isozymes In Rainbow Trout, Salmo Gairdneri And A Biochemical Genetic Comparison Of Cutthroat Trout (Salmo Clarki) Populations, Gerald Thomas Klar
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Rainbow trout lactate dehydrogenase (LDH) B2' B2' , B2' B2" and B2" B2" phenotypes were tested under a variety of conditions for swimming endurance, oxygen consumption rates, and blood pH, pO2, and lactate. The B2" B2" phenotype exhibited a lower swimming endurance, under a limited oxygen supply, than the B2' B2' and B2' B2" phenotypes. Blood pH at fatigue did not differ among the LOH phenotypes that swam under low oxygen conditions (2 mg/1). …
Park Visitor Responses To Natural Hazards, Lee H. Rentz
Park Visitor Responses To Natural Hazards, Lee H. Rentz
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Natural hazards have been an increasing problem in wildland recreation areas. This study attempted to identify factors affecting park visitor perception of and preparedness for hazards.
A model was formulated incorporating three major independent variables which might affect park visitor responses to hazards. These were: (1) previous experience, (2) information about hazards provided by the park administration (such as warnings located on signs or in brochures), and (3) visitor perception of whether responsibility for hazards rests with the individual or with an outside authority such as government or God. Trip length and knowledge of hazards were also thought to be …
Plant Succession Studies On Subalpine Acid Mine Spoils In The Beartooth Mountains, Patricia Lea Howard
Plant Succession Studies On Subalpine Acid Mine Spoils In The Beartooth Mountains, Patricia Lea Howard
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Large areas within alpine and subalpine tundra have been by disturbed by mining during this century. The most promising method for retarding deterioration of these areas is revegetation with native species through both seeding and transplants. One natural process of revegetation which occurs on portions of many existing disturbances seems to be the establishment of a few species that expand with time to form matts of plants.
At the McLaren Mine, located at 3000 m elevation in the Beartooth Mountains, Montana, active succession is occurring and is dominated by Carex species. Seed viability and successional patterns studies were conducted on …
Physiological Response To Hooking Stress In Largemouth Bass (Micropterus Salmoides), A. Wayne Gustaveson
Physiological Response To Hooking Stress In Largemouth Bass (Micropterus Salmoides), A. Wayne Gustaveson
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Recent concern about large initial and delayed mortalities resulting from tournament angling for largemouth bass has indicated that it would be desirable to further evaluate the fate of fish that are released after being captured by angling. This study was designed to evaluate sublethal physiological disruptions caused by hooking stress after largemouth bass were played under standardized conditions (0-5 minutes) and to estimate the time needed for recovery of the homeostatic mechanisms (to 72 hours). Blood lactate was used as a measure of metabolic fatigue; plasma osmolality and chloride measurements were used to evaluate osmoregulatory disturbances and gill ion-exchange; and …
Population Dynamics And Net Production Of Brown Trout (Salmo Trutta) In Two Areas Of A High Gradient Mountain Stream, Jeffrey C. Gosse
Population Dynamics And Net Production Of Brown Trout (Salmo Trutta) In Two Areas Of A High Gradient Mountain Stream, Jeffrey C. Gosse
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Estimates of the brown trout (Salmo trutta) population were made in two areas of the Blacksmith Fork River, Cache County, Utah, from June 1972 to June 1973. Additional data were obtained on movement, growth, mortality, biomass, production, and yield.
Population density was highly variable in the area where habitat alterations had occurred, but was relatively uniform where the habitat was undisturbed. The brown trout exhibited little movement except during spawning season. Instantaneous growth and mortality rates are provided for each age group.
Mean annual biomass in the two areas was 12.0 and 10.2 grams per square meter and …
Organochlorine Pesticide Residue, Physico-Chemical, And Bacteriological Profile Of The Lower Rio Grande River Of Texas, Juan H. Gonzalez
Organochlorine Pesticide Residue, Physico-Chemical, And Bacteriological Profile Of The Lower Rio Grande River Of Texas, Juan H. Gonzalez
Theses and Dissertations - UTB/UTPA
An investigation was conducted to determine if the widespread and abundant use of organochlorine pesticides in the Lower Rio Grande Valley of Texas has had any effect on the microbial flora in the water and in the bottom sediments of the Lower Rio Grande River of Texas.
Rio Grande River water and bottom sediments were cultured for microbial flora, were analyzed for pesticide residues, and the physicochemical properties of the water were determined. Samples were taken at four different sites during a ten month sampling period in 1974.
Traces of organochlorine residues were found in the water, and higher concentrations …
Volume 2, Number 4 (April 1978), The Otec Liaison
Volume 2, Number 4 (April 1978), The Otec Liaison
The OTEC Liaison
No abstract provided.
The Mining Of Coal In Bristol, Rhode Island: Potential Methodology, Impacts, And Evaluation Of Community Response, Norman Kahn
The Mining Of Coal In Bristol, Rhode Island: Potential Methodology, Impacts, And Evaluation Of Community Response, Norman Kahn
Marine Affairs Theses and Major Papers
This report addresses the potential commercial mining of coal in the coastal community of Bristol, Rhode Island, with respect to methodology and community response.The attitude of the local community towards any mining proposal will greatly influence the course of development of the resource. In addition, maximum community participation is mandated by both Federal and State law (NEPA and the Rhode Island Coastal Zone Management Act, respectively) (7, 8). It is to be expected that the character of the response will be mediated to a great degree by the expected impacts of the mining operation. For this reason, the methods of …
Sensitivity Analysis Of Stormwater Runoff Using The "Bmp" And "Nonpt" Computer Programs, George D. Flatt
Sensitivity Analysis Of Stormwater Runoff Using The "Bmp" And "Nonpt" Computer Programs, George D. Flatt
Retrospective Theses and Dissertations
No abstract provided.
Reclassification Of The Gray Wolf In The United States And Mexico, With Determination Of Critical Habitat In Michigan And Minnesota
Rocky Mountain Wolf Recovery: Annual Reports
The Service issues a final rulemaking which provides for the reclassification of the gray wolf in the United States and Mexico, and for the determination of critical habitat for species of gray wolf in Michigan and Minnesota. The reclassification is considered to accurately express the current status of the gray wolf, based solely on an evaluation of the best available biological data. The special regulations being established in Minnesota are deemed necessary and advisable to provide for the future well-being of the species. Although an increased legal take of wolves committing depredations on domestic animals will be authorized, this take …
Volume 2, Number 3 (March 1978), The Otec Liaison
Volume 2, Number 3 (March 1978), The Otec Liaison
The OTEC Liaison
No abstract provided.
Design Of A Reliable, Inexpensive Recording Rain Gage Which Utilizes Solid-State Memory, Stephen A. Dyer
Design Of A Reliable, Inexpensive Recording Rain Gage Which Utilizes Solid-State Memory, Stephen A. Dyer
KWRRI Research Reports
Researchers working in the general area of water resources frequently have need for precipitation data. Unfortunately, the cost of commercially available recording rain gages is often greater than $1,000 per unit. This report describes a microprocessor-controlled remote recording rain gage which is capable of unattended operation for periods of greater than a month that costs less than $400 in single quantities. The laboratory prototype uses a tipping bucket to collect precipitation in 0.01-inch increments. The time of the bucket tip is stored, using an offset binary format, in solid-state memory. A complete description of the gage hardware is presented along …
Rodent Population Control For Public Health And Safety, Allan M. Barnes
Rodent Population Control For Public Health And Safety, Allan M. Barnes
Vertebrate Pest Conference Proceedings: 8th (1978)
Rodent populations - particularly those that live in close proximity to man - constitute a perennial and often severe threat to man's health as reservoirs and often as direct sources of infection for a wide variety of viral, rickettsial, and bacterial disease producing agents. The following will discuss the place of rodent population reduction for the control of plague, a bacterial disease of rodents transmitted by fleas endemic in the western United States.
Establishing Native Forbs To Reduce Black-Tailed Deer Browsing Damage To Douglas-Fir, Dan L. Campbell, James Evans
Establishing Native Forbs To Reduce Black-Tailed Deer Browsing Damage To Douglas-Fir, Dan L. Campbell, James Evans
Vertebrate Pest Conference Proceedings: 8th (1978)
Principal methods being used to alleviate browsing damage to Douglas-fir (Pseudotsuga menziesii) seedlings by black-tailed deer (Odocoileus hemionus columbianus) in the Pacific Northwest are animal repellents applied to foliage and plastic mesh cylinders around individual seedlings. As an alternate method, we demonstrated that prompt establishment of highly palatable native forbs reduced summer browsing on planted seedlings to the point that black-tailed deer were no longer a factor limiting Douglas-fir regeneration. We believe that establishing native forbs is a sound ecological approach to deer-reforestation problems; furthermore, it should have wide utility because it integrates forest- and wildlife-management …