Physical Sciences and Mathematics Commons^™

Water For Agriculture. 6. Control Of Algae In Water Supplies, R C. Gorman

Journal of the Department of Agriculture, Western Australia, Series 4

ALGAE are primitive forms of plant life that are common and normal in surface waters. They are fonnd in every water supply exposed to sunlight.

Their presence is not normally detectable until there are enough of them to make their presence obvious.

A History Of Nebraska's Fishery Resources, David J. Jones

Nebraska Game and Parks Commission: Publications

This report is a compilation of records pertaining to the distribution and management of fish in Nebraska. It was prepared to serve as both a technical and nontechnical history of the state's fisheries resource and past fisheries work. It can be used in planning future fisheries administration and management as well as providing interesting reading for many fishermen.

The information was collected by a search of the available literature including records of the Nebraska Game, Forestation and Parks Commission and by interviews with individuals. Included in the report are historical notes of early fish sightings, information on the native and …

Colorado River Storage Project, Glen Canyon Unit, Lake Powell, Area And Capacity Tables, Bureau Of Reclamation; United States

Elusive Documents

No abstract provided.

Dissolved-Mineral Inflow To Great Salt Lake And Chemical Characteristics Of The Salt Lake Brine: Part 1- Selected Hydrologic Data, D. C. Hahl, C. G. Mitchell

Elusive Documents

No abstract provided.

A Progress Report On Commercial Cotton Growing On The Ord River Project, William John Toms

Journal of the Department of Agriculture, Western Australia, Series 4

The recommendations given in this article have been built up from the experience of the author in growing 200 acres of cotton in the Ord River area during the 1962-63 season for the Department of Agriculture, from findings made by Kimberley Research Station, and from discussions with the present farmers in the area.

When a new form of agriculture is introduced into a new area techniques and ideas change rapidly as farmers become acquainted with their new environment and the new crops. The recommendations will therefore require constant revision.

Developing A State Water Plan Utah's Water Resources--Problems And Needs--A Challenge, Utah Water Research Laboratory

Reports

Of all the natural resources with which Utah has been endowed none is more vital to the social and economic well-being of the people than it water resource. We cannot manufacture water. We have found no acceptable substitute. Not one more drop of water is available for our use today than was available to the pioneers. Yet water uses and water demands have multiplied over the years. Since we can do little to change nature's water allotment to Utah we must learn how to utilize our existing supplies more judiciously. This means devoting increasingly more attention to problems of water …

A Comparison Of Some Limnological Changes Caused By The Brookings Sewage Treatment Plant On Six-Mile Creek And The Big Sioux River, Richard Ruelle

Electronic Theses and Dissertations

Introduction: In the days of the early pioneers in South Dakota and other sparsely settled areas, there was no problem in finding a sufficient supply of water for drinking, cooking, and washing purposes. The problems of waste disposal were taken care of by the microorganisms in the soil, the microorganisms easily being able to keep pace with the few settlers. As cities and towns began to form, usually along a stream where there was an abundant supply of fresh water, sewage disposal became a growing problem. The easiest way to get rid of the sewage was to dump it into …

Growth Rates Of Yellow Perch, Perca Flavescens (Mitchell), In Two North Dakota Lakes After Population Reduction With Toxaphene, Donald C. Warnick

Electronic Theses and Dissertations

Fishery waters overpopulated with desirable species generally produce few harvestable fish because of slow growth rates. In 1962 Bennett stated that no fish of harvestable were found in some waters thus affected. Eschmeyer (1936) made a similar observation concerning overcrowded populations of yellow perch (Perca flavescens). For lack of more efficient remedial measures the use of piscicides has been recommended to reduce the numbers the numbers of the problem species. Relatively low toxaphene concentrations in two North Dakota lakes substantially reduced the density of the yellow perch population the effect on other fish species was less obvious. The results reported …

Pollution-Caused Fish Kills In 1962

Other Publications in Wildlife Management

This publication is the third annual report of fish kills caused by pollution occurring in the United States. The reporting of pollution-caused fish kills was begun by the Public Health Service in the Spring of 1960 in an effort to secure additional information on the effects of pollution in the Nation's waters, to elicit the cooperation and assistance of conservation groups in the States to help determine causes of fish kills and assist in their abatement, and to place responsibility for fish kills where it belonged.

The Surgeon General asked all State conservation and fish and game agencies to assist …

Pool Studies, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Odor Report, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Analytical Data, Walter Lawrance

Walter Lawrance Papers

No abstract provided.

Benthal Activity, Walter Lawrance

Walter Lawrance Papers

No abstract provided.

Analytical Data, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Pool Studies, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Press Reports, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Benthal Activity, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Odor Report, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Press Reports, Walter A. Lawrance

Walter Lawrance Papers

No abstract provided.

Development Of Water Quality Criteria For Aquatic Life, Clarence M. Tarzwell

United States Environmental Protection Agency: Publications

It is now recognized that water pollution is an important problem, that it becomes more widespread and serious as population and industry expand, and that something must be done if aquatic life resource are to be saved and their productivity maintained. In the past there has been a great deal of uncertainty in approaching this situation and a general lack of understanding of the details and ramification of the overall problem. In the efforts for the abatement of pollution, only a few clearcut objectives have been established. Knowledge is lacking as to what the objectives should be. There is still …

Northern Pike, Esox Lucius, In Alkaline Lakes Of Nebraska, D. B. Mccarraher

Nebraska Game and Parks Commission: Staff Research Publications

Pike (Esox lucius) were studied in alkaline sandhill lakes from 1956 through 1961. Fry and fingerlings were released in alkaline environments as part of a continuing ecological study of survival and growth of northern pike in Nebraska waters. Survival and growth were determined by intensive nettings at release sites. Chemical, biological, and physical characteristics of each lake were investigated (Table 1).

The majority of the nearly 2,000 Nebraska sandhill lakes may be classified as alkaline eutrophic of the bicarbonate-sulfate group (McCarraher). Salts other than chlorides predominate in these natural lakes supporting a biota somewhat different from inland chloride …

Bear Lake And Its Future, William F. Sigler

Faculty Honor Lectures

Even in such a wide-ranging and eternally changing field as biology, a few statements about certain aspects can be made with a minimum likelihood of their being refuted. In this class are the following: No two lakes are identical. Any given lake is simultaneously many things to many people. A lake is never static. The influence of a lake reaches far beyond its shores.

Bear Lake, Utah-Idaho, can be used to good advantage to exemplify the truth of these statements. It defies meaningful comparison with other lakes unless a mass of detailed statistics is employed. To the fisherman and water …

Toxic Hazards In Aerial Application, Paul W. Smith

United States Department of Commerce: Staff Publications

An analysis of the hazards accompanying the aerial application of toxic pest-control chemicals is presented. The nature of the chemicals, the symptoms of toxicity, recommended treatment, and suggestions for safe-handling, are discussed.

The introduction of the chlorinated, cyclic hydrocarbons for large-scale use as agricultural insecticides somewhat less than two decades ago, marked the beginning of a new era in agricultural pest control. In the intervening years, new chemicals, many of them engineered for specific agricultural purposes, have appeared in rapid succession. The large number and wide variety of these compounds, and their new and unfamiliar chemical and toxicological properties, have …

Interbasin Movement Of Ground Water At The Nevada Test Site, Isaac J. Winograd

Publications (WR)

The present paper presents hydraulic evidence for the interbasin circulation of ground water through carbonate rocks of Paleozoic age at the Nevada Test Site. An integral part of this evidence is the discovery that aquifers in alluvium and tuff, formerly thought to be the principal aquifers at the Test Site, are semiperched above a thick tuffaceous aquiclude that separates them from the carbonate rocks.

This paper is based on one of the studies being made by the Geological
Survey for the Atomic Energy Commission. These studies seek to evaluate
the risk that may arise if ground water should be contaminated …

Methods Of Sewer Rat Control, Joe E. Brooks

Vertebrate Pest Conference Proceedings: 1st (1962)

The control of rats in the urban environment involves more than merely dealing with the above-ground populations. The average urban sewage system provides a vast labyrinth of passages and nesting places for the Norway rat, Rattus norvegicus. Here, in a protected underground habitat the rodent population is free to reproduce and ultimately expand to the maximum number that the environment can support. Eventually, the population outgrows its environment. At this point population pressures force animals to move out of the system. Rat burrows begin appearing in front yards, under sidewalks and driveways, and in flower beds, and rats themselves are …

Commensal Rodents, W. W. Dykstra

Vertebrate Pest Conference Proceedings: 1st (1962)

The evolution of effective rodent control has been greater in the past 20 years than during the previous 200 years. Mankind need no longer fear the "black death," typhus, and other rodent-borne diseases. Likewise, there is no longer any reason why we must bear the cost of serious economic losses because of commensal rodent damage to property. Unfortunately, the latter still totals many millions of dollars each year. Damage and contamination of food products by house mice now probably equals or exceeds that caused by rats.

Ectoparasite Control In Public Health , Allan M. Barnes

Vertebrate Pest Conference Proceedings: 1st (1962)

The inclusion of a chapter on ectoparasite control in a work otherwise devoted to vertebrates has a great deal of justification; the ecologies of vertebrates and their invertebrate parasites are inseparable, thus, the vertebrate control specialist is brought into intimate contact with ectoparasites and ectoparasite problems. In many cases, the need for vertebrate and ectoparasite control problems is one, and knowledge of techniques in both areas is required. The term "ectoparasite" groups a broad array of invertebrate animals externally parasitic on larger animals, many of them blood feeders in at least one stage of their life cycles. The ecological relationships …

Pigeons, Starlings And English Sparrows, G. L. Hockenyos

Vertebrate Pest Conference Proceedings: 1st (1962)

This paper deals with the control of excessive numbers of pigeons, starlings and English sparrows in urban situations in the Midwestern region of the United States. Control procedures should always be based on a survey of the factors involved in the problem so that the most feasible methods can be determined. There is no one tool of bird control that fits all situations, and in most cases more than one tool is indicated. Since the feral pigeon is the most common pest species, emphasis will be placed on pigeon control methods. Urban bird control, like urban rat control, may involve …

Infectious Disease Hazards To Pest Control Operators, Paul Arnstein Dvm, Mph

Vertebrate Pest Conference Proceedings: 1st (1962)

One of the primary reasons for controlling most vertebrate pests is the role these creatures play as links in the infection chain of certain agents pathogenic to man. It is reasonable to assume that the persons engaged in the eradication or removal of pests are at some risk of contacting zoonoses - diseases transmissible from animals to man. Unfortunately, histories or epidemiological data of occupational infections among pest control operators are not available; perhaps this society may become a future assembly point for statistics in this field. The hazards therefore have to be approached theoretically: diseases known to be associated …

Review Of Current Vertebrate Pesticides, D. Glenn Crabtree

Vertebrate Pest Conference Proceedings: 1st (1962)

For the purpose of this brief review, emphasis will be placed on development, physical properties, physiological action, experience and limitations of vertebrate pesticides primarily of current opera¬tional importance in the control of field rodents and predatory animals.

STRYCHNINE (C21H22N2O2)

SODIUM MONOFLUOROACETATE (FCH2-CO-0Na)= "1080"

THALLIUM (Thallous-Sulfate TL2SO4)

ZINC PHOSPHIDE (Zn3P2)

CYANIDE (Compounds Yielding HCN on Hydrolysis)

RED SQUILL (Urginea maritima)

ANTU Alphanaphtylthiourea (l-(l-Napthyl)-2-thiourea)(C11H10N2S)

ANTICOAGULANTS--warfarin, diphacinone

TRACKING POWDERS

ARSENIC ERIOXIDE (AS2O3)

ENDRIN (1,2,3,4,-10, 10-hexachloro-6,7-epoxy-l,4,4a,5,6,7,8,8a-octa-hydro-1,4-endo,endo-5, 8-dimethanonaphthalene)

CALCIUM CYANIDE (CaCN2)

CARBON DISULFIDE (CS2)

PYROTECHNIC (GAS) CARTRIDGES