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A Model Of The Population Dynamics Of The Blue Crab In Chesapeake Bay, Betty Springer Hester

OES Theses and Dissertations

This study has particular application to the blue crab fisheries in Chesapeake Bay, an economically important industry whose successful management has been hindered by relatively poor understanding of the population dynamics. Recent biological studies have indicated a systematic spawning behavior which seems designed for ejection of larvae seaward from the bay entrance where they spend their pre-metamorphosis stages in the neuston. A physical mechanism for retention of the larvae in sufficient proximity to the bay entrance for their return at the proper time which involves the action of wind stress in shallow waters is proposed. Since the supply of blue …

Agenda: Groundwater: Allocation, Development And Pollution, University Of Colorado Boulder. Natural Resources Law Center

Groundwater: Allocation, Development and Pollution (Summer Conference, June 6-9)

Even before the [Natural Resources Law] Center was established [in the fall of 1981], the [University of Colorado] School of Law was organizing annual natural resources law summer short courses. To date four programs have been presented:

- July 1980: "Federal Lands, Laws and Policies-and the Development of Natural Resources"

- June 1981: "Water Resources Allocation: Laws and Emerging Issues"

- June 1982: "New Sources of Water for Energy Development and Growth: lnterbasin Transfers"

- June 1983: "Groundwater: Allocation; Development and Pollution"

(Reprinted from Resource Law Notes, no. 1, Jan. 1984, at 1.)

University of Colorado School of Law professors …

Volume 7, Number 6 (June 1983), The Solar Ocean Energy Liaison

The OTEC Liaison

No abstract provided.

The Geology Of Maine's Coastline : A Handbook For Resource Planners, Developers, And Managers, Maine State Planning Office

Maine Collection

The Geology of Maine's Coastline : A Handbook for Resource Planners, Developers, and Managers

Executive Department, Maine State Planning Office, Augusta, Maine, June 1983.

Contents: List of Figures / Introduction: The Geological Connection / Chapter 1: Using the Marine Environments Maps / Chapter 2: Perspectives of the Maine Coast / Chapter 3: The Building Blocks of Maine's Coast / Chapter 4: The Disappearing Shoreline / Where to Go for Help / Some Planning Considerations for Development in Coastal Geologic Environments / Land Use Laws of Special Interest to Individual Coastal Property Owners

The Prairie Naturalist Volume 15, No. 2. June 1983

The Prairie Naturalist

Paul B. Kannowski, Editor

Douglas H. Johnson, Book Review Editor

TABLE OF CONTENTS

EFFECTS OF FIRE ON RODENTS IN TALLGRASS PRAIRIE OF THE FLINT HILLS REGION OF EASTERN KANSAS. D. W. Kaufman, G. A. Kaufman, and E. J. Finck

FECAL pH AND FOOD HABITS OF SYMPATRIC LAGOMORPHS IN TEXAS R. J. Warren

UNUSUAL PLANT ASSEMBLAGE IN WALSH COUNTY, NORTH DAKOTA ▪ B. Heidel

ADDITIONAL RECORDS OF PASSERINES FEEDING ON POPLAR GALLS, AND A POSSIBLE MECHANISM FOR SUMMER NOMADISM IN BOREAL FINCHES ▪ P. J. DuBowy

UPDATE ON THE AMERICAN BALD EAGLE, Haliaeetus leucocephalus L., IN NEBRASKA ▪ S. J. Rothenberger …

The Probe, Issue 33 - June 1983

The Probe: Newsletter of the National Animal Damage Control Association

The Probe National Animal Damage Control Association
No. 33 June, 1983
A film entitled "Goodbye Joey"
Perennial Leghold Trap Bill in the House (HR-1797)
Coyote Bite
Letters to Ye Ed
Killing a grizzly bear
Goats
Jack rabbit populations
Federal vs. state ADC programs
1080
Strychinine
Book Review
The Wildlife Society
Rodent Repellents

The Induction Of Tolerance To Heavy Metals In Natural And Laboratory Populations Of Fish, Wesley J. Birge, William H. Benson, Jeffrey A. Black

KWRRI Research Reports

Aquatic toxicity studies were performed on two natural populations of fathead minnows. One group of organisms was taken from a metal-contaminated flyash pond associated with a coal-fired power plant and the other group was collected from relatively uncontaminated hatchery ponds. Acute tests indicated that flyash pond fish were significantly more tolerant to cadmium and copper than were hatchery fish. At an exposure concentration of 6.0 mg Cd/L in moderately hard water, the median period of survival for flyash pond fish was 50.0 hr compared to 6.8 hr for hatchery fish. Both groups of organisms were about equally sensitive to zinc. …

An Interview With Albert W. Tucker, Stephen B. Maurer, A. W. Tucker

Mathematics & Statistics Faculty Works

The mathematical career of Albert W. Tucker, Professor Emeritus at Princeton University, spans more than 50 years. Best known today for his work in mathematical programming and the theory of games (e.g., the Kuhn-Tucker theorem, Tucker tableaux, and the Prisoner's Dilemma), he was also in his earlier years prominent in topology. Outstanding teacher, administrator and leader, he has been President of the MAA, Chairman of the Princeton Mathematics Department, and course instructor, thesis advisor or general mentor to scores of active mathematicians. He is also known for his views on mathematics education and the proper interplay between teaching and research. …

Mandibular Repositioning With Frankel Appliance Therapy, Clark E. Schneekluth

Loma Linda University Electronic Theses, Dissertations & Projects

A sample of twelve Frankel appliance (FR-2) treated patients, in the mixed dentition stage, were selectively chosen by an orthodontist based on the Class II correction and evaluated from before treatment and end of treatment laminagraphic and lateral cephalometric radiographs. The average treatment period was 22 months (1 yr. 10 mos.). The average pre-treatment age was 9.5 years with a range from 8 to 11 years old, while the average post-treatment age was 11.3 years with a range of 10 to 13 years.

Frankel appliance therapy was the only form of mechanics used in this study.

The before treatment lateral …

Baseline Study For Monitoring Variations In Nitrate Concentration In Surface Waters Of Cuyamaca Rancho State Park In Relation To Watershed Types, Lester E. Harris Iii

Loma Linda University Electronic Theses, Dissertations & Projects

The purpose of this study was to compare the variations in nitrate concentration in the surface waters of five different watershed community types at Cuyamaca Rancho State Park. Monthly water samples were collected at selected sites below each watershed and analyzed by use of a specific ion electrode for nitrate concentration. Results indicate that variations in nitrate concentration are influenced by seasonal variation in rainfall. The yellow pine forest/chaparral watershed showed the highest mean nitrate concentration, three to four times higher than the other watershed types analyzed. Peak nitrate concentrations did not approach the maximum safe limit for human or …

The Combined Effect Of Cu And Zn On Selenastrum Capricornutum, Helmer Colonia-Roque

Dissertations and Theses

It has been demonstrated that the toxicity of heavy metals depends on their chemical speciation and can be related to their free ion activities, rather than the total metal concentrations. The objective of this study was to determine the effect of combined free ions of zinc and copper on the toxicity to the green alga Selenastrum capricornutum. This alga was grown in a defined medium, under controlled laboratory conditions, with a varying range of zinc and copper concentrations. The growth rate of the alga was inhibited at pZn = 5.93 or at pCu = 7.24. The results suggest that …

Survival Analysis For A Red Squirrel Population, Curtis H. Halvorson, Richard M. Engeman

United States Department of Agriculture Wildlife Services: Staff Publications

A 13-year study of an isolated red squirrel (Tamiasciurus hudsonicus) population in Montana has provided the data necessary to analyze their survival. Such long-term, intensive studies of wild populations are rare. When reported, derived (ratio) estimates are used to develop survival information as Gross et al. (1974), and Keith and Windberg (1978) did in respective 9- and 15-year lagomorph studies. A more accurate method, following cohorts, was used by Armitage and Downhower (1974) and Mosby (1969), who presented results for six or more year-classes of sciurids in actuarial tables (Deevey, 1947; Allee et al., 1949).

The Effect Of The Endangered Species Act Of 1973, Robert Palmer Yankle Ii

Marine Affairs Theses and Major Papers

Scrimshaw, as an art form, had just recently risen a few notches above the state of obscurity. There are still millions of Americans who probably know nothing about it. Inextricably linked with the whaling industry for years, the scrimshaw industry has recently undergone a remarkable transition. When whaling ended in the United States, scrimshaw moved ashore and some people found out that there was a great deal of money to be made in the scrimshaw business. but with the passage of the Marine Mammals Protection Act in 1973, scrimshanders found themselves being tightly regulated by the Federal government. This paper …

Artificial Floating Islands: Cities Of The Future, Earl A. Proetzel

Marine Affairs Theses and Major Papers

This report will investigate the feasibility of large-scale artificial floating islands, to solve problems posed by over-population and environment-burdening activities in coastal areas. The investigation will focus on the historic, technical, utilizable and legal aspects of artificial floating islands. Although this report exemplifies artificial floating islands developed for offshore cities, electrical power generation and basing for the military, its content is applicable to any offshore floating development.

Nothing Succeeds Like Succession: Ecology And The Human Lot, James A. Macmahon

Faculty Honor Lectures

An Honor Lecture provides a rare opportunity for me as a scientist. First, I have the chance to share, and in a sense to justify, my chosen and cherished discipline, ecology, before an eclectic audience. Second, I have a reason to consider my profession in a broader perspective than I normally do, given the pressures of day-to-day teaching, of grantsmanship, and of acting the role of stern taskmaster to my graduate students. I relish the opportunity to dabble, with an ecological perspective, in history, in philosophy, and in other areas. First, I will discuss my discipline in the context of …

Disposal Of Household Wastewater In Soils Of High Stone Content (1977-1980), E. M. Rutledge, C. R. Mote, M. S. Hirsh, H. D. Scott, D. T. Mitchell

Arkansas Water Resources Center Technical Reports

Two experimental septic tank filter fields were constructed with built-in monitoring equipment in Nixa soils. These soils contain many chert fragments and a fragipan about 60 cm deep which restricts downward water movement and is the design-limiting feature. The standard filter field (76 cm deep) was built into the fragipan and the modified standard filter field (30 cm deep) was placed above it. During 30 months' observation, the modified standard performed better than the standard filter field. Maximum rise of effluent in the standard and modified standard came within 11 and 19 cm of the soil surface, respectively. Performance of …

The Probe, Issue 32 - May 1983

The Probe: Newsletter of the National Animal Damage Control Association

The Probe National Animal Damage Control Association No. 32 May 1983
Biopolitics
Arizona Fish & Game
Reading Material
Deadly 1080
Rocky Mountain Trapper
Blackbird Spraying Doesn’t Ruffle Feathers
Rat Bites
Live traps
International Association of Wildlife & Fish Agencies
Bill S. 457

Water Current, Volume 15, No. 3, May/June 1983

Water Current Newsletter

Director's Report
1983 Nebraska Irrigation Tour
Governor Appoints Water Committee
China Tour
Seminar Proceedings Available Soon
Calls for Conference Papers
Conferences and Meetings
Positions Available
Research Review: Conservation of Soil, Water and Energy Through Reduced Tillage Systems

Studies In Peptide Synthesis Towards The Lanthionine Analog Of Des-N-Tetramethyl Triostin A, Ganesh Devdas Kini

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Studies have been carried out towards the synthesis of bicyclic octadidepsipeptide lanthionine 4, an analog of des-N-tetramethyl triostin A. Starting with a symmetrical lanthionine unit 5 (R₁, R₃ = Me; R₂, R₄ = t-butyloxycarbonyl), synthesized from the corresponding cystine by contraction with hexaethylphosphorus triamide, linear octadidepsipeptides 29 and 32 were synthesized.

Attempted cyclizations of 29 and 32 to the bicyclic octapeptide were unsuccessful.

The failure of the symmetrical approach to 4 prompted the synthesis of an unsymmetrical lanthionine unit with appropriate compatible protecting groups. Attempts to synthesize unsymmetrical lanthionines by nucleophilic displacement on …

Effects Of A Wildfire On Seed Rain And Soil Seed Reserve Dynamics Of A Good Condition Sagebrush-Grass Rangeland In Central Utah, Mohamed Ali Hassan

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The objectives of this research were to investigate the ecological importance of soil seed reserves and seed rain on regeneration of a good condition sagebrush-grass range vegetation after a wildfire and draw conclusions leading to better understanding and management of such ecosystems. Investigations were conducted for two successive years on a community where major plants were neither rhizomatous nor sprouting. In such cases soil seed reserves and seed rain have to be the main source of regeneration. In addition to monitoring soil seed reserves and seed rain, vegetation changes during the past two years and the historical conditions of the …

Cell-Mediated Immunity Of The Dog Lung And Effects Of Inhaled 239puo2 Or Pulmonary Tumors, Jennifer Baker Galvin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Cell-mediated immunity (CMI) in the lung has not been well characterized due to the lack of applicable tests. A major objective was to define pulmonary CMI serially in immunized and control lung lobes using the leukocyte procoagulant (LPCA) assay in young adult dogs. This was compared to a standard, but less reproducible CMI assay, macrophage migration inhibition facet (MIF). The CMI response, as measured by the LPCA assay, peaked in the blood 7 days after lung immunization. The pulmonary CMI response measured with cells obtained by bronchial lavage from the immunized and control lung lobes peaked at 9 to 12 …

Cluster Analysis For Acid Rain Data In Norway, Ali Ghafourian

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This paper gives a description of three well known clustering methods, and discusses the advantages and disadvantages of each. Then, the results of these three clustering methods are compared through examining them on a specific set of data.

Abstracts Of Papers, 95th Session Of The Iowa Academy Of Science, April 22-23, 1983, Iowa Academy Of Science

Iowa Academy of Science Documents

Presentation abstracts from the annual meeting of the Iowa Academy of Science

The Annual Meeting Of The Iowa Academy Of Science April 22-23, 1983 [Program, 95th Meeting], Iowa Academy Of Science

Iowa Academy of Science Documents

No abstract provided.

95th Session Iowa Academy Of Science Awards Luncheon, April 22, 1983, Iowa Academy Of Science

Iowa Academy of Science Documents

Program:

--- Introduction of Head Table - Harry T. Horner, President, Iowa Academy of Science
--- Recognition of students participating in various state-wide activities - Gary Downs, Chair, Student Programs Committee
--- Presentation of students selected to present papers at the 1983 Iowa Academy Meeting and announcement of those selected to represent Iowa at the American Junior Academy of Science Meeting, New York, May 1984 - Mary Sievert, Director, Iowa Junior Academy of Science
--- Presentation of the Excellence in Science Teaching Award in Biology, Chemistry, Earth Science, Elementary Science, Junior High Science, and Physics - David McCalley, University of …

Phocoena Sinus, Robert L. Brownell Jr.

United States Department of Commerce: Staff Publications

Order Cetacea, Suborder Odontoceti, Superfamily Delphinoidea, Family Phocoenidae. Four species are included in the genus. No subspecies are recognized in P. sinus.

Volume 7, Number 4 (April 1983), The Solar Ocean Energy Liaison

The OTEC Liaison

No abstract provided.

Impact Of The Law Of The Sea Treaty On The Soviet Fishing Industry, Gary Lee Roemmich

Marine Affairs Theses and Major Papers

The signing of the United Nations Conference on the Law of the Sea (UNCLOS) Treaty was the maturation of an idea that was born thirty-six years ago. That treaty placed into effect the 200 mile exclusive economic zone (EEZ). A universal 200 mile EEZ could be a death knell for the high-seas fishing fleets we know today as the majority of the major fishing grounds lie within 200 miles of the coast. The Soviet Union presently has the largest fishing fleet in the world and will perhaps feel the largest impact from the treaty signing. This paper intends to evaluate …

Cameron B. Kepler's Review Of Janet Kear And A. J. Berger's The Hawaiian Goose: An Experiment In Conservation, Cameron B. Kepler

Pacific Studies

No abstract provided.

Sedimentation Rate Of Salt Determined By Micrometeorite Analysis, James Matthew Barnett

Masters Theses

The sedimentation rate of the A-l Evaporite of Michigan was determined by analysis of micrometeorites found as inclusions in the halite deposit. The samples were obtained from the Dow Chemical Company salt well number eight. The residue from the dissolved salt was magnetically separated and later analyzed by Particle Induced X-ray Emission (PIXE), X-ray diffraction , and microprobe techniques. The amount of extraterrestrial material was determined from the quantity of nickel present.

A sedimentation rate of .01 to .4 centimeters per year was calculated for the salt based on a constant influx rate of meteoritic material of 1 x 10 …