Physical Sciences and Mathematics Commons^™

Morphology And Development Of Hatchery Cultured American Shad (Alosa Sapidissima Wilson), With A Comparison Between Field Sampled And Cultured, James Roy Johnson

Dissertations, Theses, and Masters Projects

No abstract provided.

Uptake, Distribution, Metabolism And Clearance Of Kepone By Channel Catfish (Ictalurus Punctatus), Peter A. Vanveld

Dissertations, Theses, and Masters Projects

No abstract provided.

Pelagic Amphipods (Amphipoda: Hyperiidea) Of The Continental Shelf In The Middle Atlantic Bight, Russell Allen Short

Dissertations, Theses, and Masters Projects

No abstract provided.

Seasonal Changes In The Growth And Structure Of The Diatom Asterionella Formosa Hassall In Lake Matoaka, Virginia, Kathy Joyce Lundgren

Dissertations, Theses, and Masters Projects

No abstract provided.

The Osmotic Fragility Of Red Blood Cells Of Marine Animals: A Comparative Study, Robert Demanche

Dissertations, Theses, and Masters Projects

No abstract provided.

Heavy Metal Inventory Of Suspended Sediment And Fluid Mud In Chesapeake Bay, Richard Harris, Maynard M. Nichols, Galen Thompson, John Banacki, George Vadas

Reports

Heavy metals have been found associated with suspended material, sediments and fluid mud in the Chesapeake Bay. A series of field observations were made along the Bay axis to determine the metal concentrations and their distributions at relatively high and at average river inflow between March 27-April 9 and May 2-10, 1979.

Metal concentrations in suspended material per unit volume of water relate to the concentrations of suspended material. They are higher in the zone of the turbidity maximum than landward in river water or seaward in estuarine water. Thus, metals associated with suspended material tend to accumulate in the …

The Association Of 5.8 S With 28s Ribosomal Rna, Nandita Banerjee

Chemistry & Biochemistry Theses & Dissertations

5.8S rRNA is a low molecular weight ribosomal RNA which is noncovalently bonded to the larger ribosomal subunit 28S rRNA; through its 3' end and through its 5' end. This interaction is an integral part of the ribosome, and plays an important role in the ribosome structure and function.

There is a high degree of homology between the 5.8S rRNA primary structures of rat, turtle and chicken. The base sequence of rat 5.8S rRNA differs only in one position from that of turtle and in three positions fr.om that of cl1.icken. Tl1ere is a single purine substitution at the 5' …

A Theory Of Reading: From Eye Fixations To Comprehension, Marcel Adam Just, Patricia A. Carpenter

Marcel Adam Just

No abstract provided.

Predation Of Upland Game And Its Management, Roger Wells

Great Plains Wildlife Damage Control Workshop Proceedings

There is probably no greater topic that elicits greater emotion in public wildlife discussions than that of predation. A variety of groups each with their own particular special interest surround the topic.

Some advocate complete protection of predators on the premise that their activities merely result in a "balance of nature." The opposite viewpoint argue just as strongly for the total elimination of Predators of valued wildlife in order to have greater number for man's enjoyment.

Metals In Apple Cider Produced And Marketed In Connecticut, Dennis W. Hill, Thomas R. Kelley, Gale R. Morrow, Sylvia W. Matiuck

Storrs Agricultural Experiment Station

No abstract provided.

The Prairie Naturalist Volume 11, Number 4. December 1979

The Prairie Naturalist

THE STATUS OF HERONS, EGRETS AND IBISES IN NORTH DAKOTA ▪ J. T. Lokomoen

RANGE EXPANSION OF BAIRD'S SPARROW IN SOUTH DAKOTA ▪ H. A. Kantrud and C. A. Faanes

NESTING RECORDS OF THE WOOD THRUSH IN NORTH DAKOTA ▪ S. O. Lambeth and D. O. Lambeth

SOME ECOLOGICAL ASPECTS OF MARBLED GODWITS AND WILLETS IN NORTH DAKOTA ▪ K. F. Higgins, L. M. Kirsch, M. R. Ryan and R. B. Renken

NOTES ON THE INCUBATION BEHAVIOR OF BLACK-BELLIED WHISTLING DUCKS ▪ E G. Bolen and E. N. Smith

NOTES

Red Fox Captures Sharp-tailed Grouse at the Lek ▪ S. …

X-Rays Provide Researchers With Views Of Coral Growth Patterns, Richard E. Dodge

Marine & Environmental Sciences Faculty Articles

No abstract provided.

Rare, Threatened And Endangered Vascular Plants In Oregon: An Interim Report, Jean L. Siddall, Kenton L. Chambers, David H. Wagner

Institute for Natural Resources Publications

This report on rare, threatened and endangered vascular plants in Oregon is a basic document in the process of inventorying the state's natural areas * Prerequisite to the orderly establishment of natural preserves for research and conservation in Oregon are (1) a classification of the ecological types, and (2) a listing of the special organisms, which should be represented in a comprehensive system of designated natural areas. The necessary ecological classification was published in the U.S. Forest Service Pacific Northwest Forest and Range Experiment Station document, "Research Natural Area Needs in the Pacific Northwest," by Dyrness et al. (1975). This …

Effects Of No-Tillage Fallow As Compared To Conventional Tillage In A Wheat-Fallow System, C. R. Fenster, G. A. Peterson

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The benefits of reducing tillage by use of herbicides for weed control emphasizes why research was started to study a fallow system where all tillage was replaced by herbicides. Wheat planting was then the only soil disturbing operation. Objectives of the research were to compare the effects of no-tillage (chemical), stubble-mulch and plow (bare fallow) systems of fallow on: 1. Grain yield. 2. Grain protein. 3. Residue retention. 4. Soil nitrate-nitrogen accumulation. 5. Soil water accumulations during fallow. Data presented are in the form of a progress report. These experiments will continue.

The Prairie Naturalist Volume 11, Number 3. September 1979

The Prairie Naturalist

DISTRIBUTION AND NATURAL HISTORY OF AMPHIBIANS AND REPTILES IN WESTERN NEBRASKA WITH ECOLOGICAL NOTES ON THE HERPETILES OF ARAPAHO PRAIRIE ▪ R. E. Ballinger, J. D. Lynch and P. H. Cole

AVIAN MORTALITY FROM A SEVERE HAIL STORM ▪ J. L. Piehl

EFFECTS OF A SUMMER STORM ON BIRD POPULATIONS ▪ D. H. Johnson

SEXING AND AGING CRITERIA FOR THE WHITE PELICAN ▪ G. R. Lingle and N. F. Sloan

CANVASBACK DUCK RECOVERS FROM COMPOUND LUXATION TO WING ▪ H. A. Doty

SECOND NORTH DAKOTA RECORD OF LOUISIANA WATERTHRUSH ▪ C. A. Faanes

FIRST NESTING RECORD OF A LOUISIANA HERON …

Heating-Effect Minimization In Dye Lasers, Kenneth Lee Matheson, James M. Thorne

Faculty Publications

Optical pumping of dye lasers deposits heat nonuniformly in the active medium. Because the refractive index of a liquid or gas is a function of temperature, gradients are created which refract the laser beam. This effect is sometimes serious enough to quench laser action. In this paper, we evaluate the effects caused by optical pumping with a coaxial flashlamp and suggest ultraviolet absorbers and wavelength shifters as materials for minimizing the problem

Mule Deer Habitat Guidelines, Richard M. Kerr

United States Bureau of Land Management: Staff Publications

The purpose of this Mule Deer (Odocoileus hemionus) Habitat Management Guide is principally to assist BLM managers and biologists in planning for and managing mule deer habitat on public lands administered by the Bureau of Land Management. For many years Federal land management agencies have made the distinction between the Federal responsibility for managing habitat and the State prerogatives of managing native wild ungulate populations. Certainly the two are inseparably linked. These responsibilities, and up to now "symbiotic relationships", are probably best described succinctly in Title 43 of the Code of Federal Regulations Part 24.

Outlook -- The …

Atmospheric Forcing Of The Bight Of Abaco, Peter M. Smith

HCNSO Student Theses and Dissertations

No abstract provided.

Long-Term Effects Of Land Application Of Domestic Wastwater: Tooele, Utah, Slow-Rate Site, Volume 1: Field Investigation, James H. Reynolds, L. R. Anderson, R. W. Miller, W. F. Campbell, M. O. Braun

All U.S. Government Documents (Utah Regional Depository)

Application of wastewater to the land has been designated a viable alternative for wastewater treatment by the Water Pollution Act Amendments of 1972 (PL 92-500). However, very little information is available concerning the long-term effects of applying wastewater to the land. The general objective of this study was to determine the long-term effects of employing secondary treated municipal wastewater as irrigation water. The study compared the quality of soils, crops, groundwater, and applied water to a site receiving normal irrigation water (control site) to a site (treated site) which had utilized seondary treated municipal effluent for irrigation water during a …

The Spatial And Temporal Distribution Of Fish Eggs And Larvae In Hempstead Bay Estuary, Joseph Adelard Lessard

OES Theses and Dissertations

The ichthyoplankton of Hempstead Bay estuary was sampled from December 1972 to mid March 1974. Eleven stations were sampled by towing a 0.5 meter diameter plankton net. Eggs were most abundant during June and July with an average concentration calculated to be above 5,500/100m³. Egg densities were the lowest during the fall and winter. Larvae were most frequently taken from March through July with densities varying greatly among the samples. The eggs of Brevoortia tyrannus, Anchoa mitchilli, Tautoga onitis, Tautogolabrus adspersus, and Scophthalmus aguosus and the larvae of Menidia menidia, Ammodvtes hexapterus and Pseudopleuronectes americanus constituted most …

Feeding Morphologies And Distribution Patterns Of Marine Cladocera In The Lower Chesapeake Bay, Sandra Layne Gilchrist

OES Theses and Dissertations

Temporal and spatial distributions of marine cladocera in the lower Chesapeake Bay estuary were observed over a year-long sampling period. The distributions of cladoceran species throughout the Bay were studied in relation to temperature and salinity. A survey of the species over the entire Bay is included to establish distribution patterns of the various species during a short time period.

Theoretical mathematical principles were used to predict feeding abilities of the Bay species. Mouthparts are described qualitatively and quantitatively to infer function. A mandibular index developed by Itoh (1970) was revised and employed in evaluating feeding methods interspecifically and interspecifically. …

Vesicular-Arbuscular Mycorrhiza Influence Growth But Not Mineral Concentrations In Seedlings Of Eight Sweetgum Families, Richard C. Schultz, Paul P. Kormanik, W. Craig Bryan, G. H. Brister

Richard C. Schultz

Seedlings of eight half-sib sweetgum (Liquidambar styraciflua L.) families were grown for 6 months in a fumigated soil mixture, with or without inoculum from a mixture of Glomus mosseae and Glomus etunicatus fungi, at levels of 140, 280, 560, and 1120 kg/ha of 10-10-10 fertilizer. All seedlings received three additions of 187 kg/ha of N during the growing season. Inoculated seedlings had significantly greater biomass, height, and stem diameters at each fertilizer level than nonmycorrhizal control seedlings. Significant differences in growth occurred between families in mycorrhizal plants. However, fertilizer did not significantly affect growth or nutrient uptake of the seedlings. …

The Prairie Naturalist Volume 11 , Number 2. June 1979

The Prairie Naturalist

SPECIES WITH EXTRA FLORAL NECTARIES IN A TEMPERATE FLORA (NEBRASKA) ▪ Kathleen H. Keeler

PLANTS OF MOUNT GOLIATH RESEARCH NATURAL AREA ▪ Jeanette Hartman and Rod Mitchell

STATUS OF THE STURGEON CHUB (HYBOPSIS GELIDA) AND SICKLEFIN CHUB (HYBOPSIS MEEKI) IN NORTH DAKOTA ▪ Robert C. Reigh and Dean S. Elsen

OBSERVATIONS ON COYOTE BIOLOGY IN NORTH-CENTRAL MISSOURI ▪ Fred B. Samson and Bill D. Hill

DESTRUCTION TO NESTING BIRDS ON A MARSH BAY BY A SINGLE STORM ▪ Martin K. McNicholl

BOOK REVIEWS

Presentations on Predators ▪ Staff

Migratory Game Birds ▪ Ronald A. Ryder

Wolf …

Biology, Reproductive Potential And The Impact Of Fishing Pressure On The Bluegill Fishery Of Pelican Lake, Uintah County, Utah, Bob D. Burdick

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Certain aspects of the biology of two species of fish, bluegill (Lepomis macrochirus) and largemouth bass (Micropterus salmoides), and the assessment of fishing pressure upon the sport fishery of Pelican Lake, Uintah County, Utah, a 680 ha warmwater lake, were studied between April 1, 1976 and June 30, 1978. The growth rate of bluegills (sexes combined) was fairly rapid; the mean back-calculated total lengths from ages one through nine were 55, 112, 166, 194, 211, 229, 245, 256 and 259 mm. The growth of largemouth bass was 104, 194, 271, 316, 350, 405 and 416 mm …

Information Transfer And Regulation In A Model Ecosystem With Environmental Stochasticity, M. Mckee

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The concept of regulation in ecosystems has been given considerable attention in the ecological literature, but no formal treatment has been offered. This study proposes a rigorous definition of regulation which is derived from the mathematics of information and communication theory. A theoretical, mathematical equivalent of the definition is also offered which implies serious limitations as to the value of most traditional laboratory population studies and deterministic population models in understanding regulation in ecosystems. The empirical validity of this theoretical equivalence is tested through use of a competition model of two diatoms. Other observations concerning the relationship between environmental variability …

Two Basic Methodological Choices In Wildland Vegetation Inventories: Their Consequences And Implications, Donald Alan Shute

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In designing inventories of wildland vegetation, two of the many basic methodological choices are: 1) whether data are collected, reduced, and stored in discrete classes or as continuous variables, and 2) whether data are gathered as general purpose variables to bear upon many questions, or as specific purpose variables optimized for only one type of prediction. The effects of these two choices on accuracy of vegetation inventories to predict plant community production were examined by comparing regression models built upon differing sets of independent variables "inventoried" from a common data base. Contrary to expectations, discrete variables of classified community types …

Interrelationships Between Benthic Macroinvertebrates And Habitat In A Mountain Stream, John M. Payne

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A study to determine habitat differences of benthic macroinvertebrates was conducted on the upper Strawberry River, Utah. The investigation was part of a large scale project to determine minimum stream flow requirements for trout. The effects of time, habitat, depth and velocity on the distribution of benthic fauna were evaluated.

Samples of benthic invertebrates (146 total) were collected every 2 months at 8 stations on the river from November, 1975 through August, 1976. Representatives of 59 taxa were collected. Eight taxa comprised 90 percent of the mean annual community standing crop in numbers. Biomass was not dominated by any group …

Reproductive Modes Of The Least Chub (Iotichthys Phlegethontis - Cope), Marianne Crawford

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The reproductive biology of the least chub Iotichthys phlegethontis (Cope) was studied from June 1976 to March 1978. Fish from both field and laboratory populations of the Leland Harris Spring Complex, Juab Co., Utah were utilized in the study. Reproduction in 1977 occurred from April to July in the field population and from April through August in the laboratory population.

Reproduction was determined from gross examination and weight measurements of testes and ovaries, breeding coloration in males and diameter measurements of ova.

Males and females matured at about the same size, 28 to 30 mm TL. The number of mature …

Ua66/8/2 Growing Season In Kentucky 1948-1977, Wku Kentucky Climate Center, Glen Conner, Robert Sanderson

WKU Archives Records

Kentucky Climate Center report number 21 Growing Season in Kentucky

Some Effects Of A Grazer, Hyalella Azteca On Ecosystem Level Properties In Aquatic Microcosms, Martin D. Werner

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A study to determine some ecosystem level effects of an aquatic invertebrate grazer, Hyalella azteca, was performed in aquatic ix microcosms. Impact of the grazer was assessed in three general areas: 1) inorganic nutrient levels of the microcosm water column, 2) productivity and respiration of the biotic community, and 3) plant community composition in the microcosms.

The grazing amphipod caused inorganic phosphorus and nitrogen (except ammonia) levels to be elevated in the microcosms. The increase was due, at least partially, to excretion of nutrients into the water by the amphipod. The presence of H. azteca did not significantly …