Physical Sciences and Mathematics Commons^™

Containerized Cargo Flow Analysis Between The United States And The Far East, Bi-Chou Wei

Marine Affairs Theses and Major Papers

Within less than a decade, containerization has revolutionized maritime general cargo transportation throughout major world trade routes, especially the trade routes between the Far East and the United States. Few commodity flow studies have focused on this latest innovation in maritime transport. To most of the rapidly developing state-owned Far East shipping industries, an understanding of container flow variation and port calling preference with U.S. seaports has become essential in order to maximize investments and to rationalize services. By applying 1974, 1977, and 1980 Far East/U.S. container flow data, this study intends to explore the non-physical and economic elements which …

American Coastwise Trade Law, Mark Dean Aspinwall

Marine Affairs Theses and Major Papers

Federal involvement in the shipping industry dates back to 1789. Since then, governmental efforts to promote the American merchant marine have taken a variety of forms, including the prohibition of foreign shipping from the coastwise trade. To this end, laws have been enacted which deal with specific activities considered to be coastwise trade in nature and which ban the use of foreign-flag and, in some cases, foreign-built ships from those activities. However, the laws are narrowly worded and archaic, and have been unable to adequately address modern trends in coastal commerce. Maritime service industries have emerged in recent years which …

Investment Opportunities In The Nigerian Fishing Industry, Ayotunde M. Giwa

Marine Affairs Theses and Major Papers

The major problem facing the Nigerian fishing industry is in its inability to satisfy the demand for tasty yet inexpensive animal protein. Nigeria's marine biological resources are limited and the Gulf of Guinea is among the poorest in the whole of West Africa. Nigeria's population is estimated to have reached about 100 million and is growing at 3.09 per cent per annum. Nigeria's fishing industry is multi-sectoral and composed of the riverine, lake, coastal, estuarine, and culture fisheries. Together they constituted about 1.5 per cent of the GDP in 1976. Up to the present moment, the National has relied on …

Radish Control In Lupins, Weed Control In Lupins, Peas - Broadleaf Weed Control, Peas - Post Emergence Grass Control, Grapevines - Herbicide And Fruit Quality., D. J. Gilbey, R. Klemm

Experimental Summaries - Plant Research

Radish control in lupins simazine "top up", 86N085. Radish control in lupins diflufenican, 86 GE 42, 86 MO 33, 86 ME 83. Radish control in lupins probe, 86 TS 33, 86 GE 41. Radish control in lupins simazine and atrazine, 86 GE 43, 86 MO 34, 86 NO 87, 86 LG 41. Capeweed control in lupins simazine and atrazine, 86 LG 41. Radish control in lupins, 86 TS 38. Radish control in lupins post emergence herbicides, 86 WH 68. Radish control in lupins post emergence herbicides, 86 MO 42. Radish control in lupins post emergence duiron and 2,4-db, 86 GE …

Fungicide Testing, M. J. Barbetti

Experimental Summaries - Plant Research

Fungicidal control of Phoma blackstem disease in medic, 86 KA 11. Medic cultivar susceptibility to Phoma blackstem disease, 85 KA 56. Role of Phoma seed infection in medic, 85 KA 57. Effect of soil pasteurization on damage caused by six fungal root pathogens, 86 PE 53. Susceptibility of 18 sub-clover cultivars to isolates of the clover scorch fungus, Kabatiella caulivora, 86 PE 54. Effect of plant age or growth stage of subterranean clover on susceptibility to infection by the clover scorch fungus, Kabatiella caulivora, 86 PE 55. Susceptibility of rapeseed lines to blackleg crown canker, 86 MT 1, 86 MT …

Sediment Processing And Selective Feeding By Pectinaria Koreni (Polychaeta: Pectinariidae), Fred C. Dobbs, Teresa A. Scholly

OES Faculty Publications

Pectinaria (Lagis) koreni (Malmgren) is an abundant, deposit-feeding, infaunal inhabitant of shallow-water marine environments in northern Europe. Laboratory experiments were performed to quantify the polychaete's sediment processing in 2 distinct sediments, 1 fine-grained and high in combustibles, the other coarse-grained and low in combustibles. Gut passage time and time to pseudodefecation were predictable only in coarse-grained sediment. In both sediments, reworking rate increased with worm size and over time, although temporal patterns differed in the 2 sediments. The ratio of pseudodefecated sediment to defecated sediment did not differ significantly over time in either sediment, but the ratio was greater in …

Tidal Circulation In Chesapeake Bay, Carl W. Fisher

OES Theses and Dissertations

This study is a comprehensive examination of the tidal circulation of Chesapeake Bay and its major tributaries. Tide and current data, which were observed in Chesapeake Bay by the National Ocean Service during the period from 1972 to 1983, are analyzed and used to construct charts that describe the tide and tidal current. Frictionally damped analytic models are used to: explain the tidal hydrodynamics of the observed tides, determine the location of the quasinodes and antinodes of the M₂ and K₁ tidal waves, explain the relationship of the tides and tidal currents, and determine if the tide in …

Earth Observing System, Volume Iia: Data And Information System, Report Of The Eos Data Panel, Raymond Arvidson, Frederick Billingsley, Robert Chase, Pat Chavez Jr., Michael Devirian, Frederick Mosher, Et Al.

Publications

The purpose of this report is to provide NASA with a rationale and recommendations for planning, implementing, and operating an Earth Observing System data and information system that can evolve to meet the Earth Observing System's needs in the 1990s. The Earth Observing System (EOS), defined by the EOS Science and Mission Requirements Working Group, consists of a suite of instruments in low Earth orbit acquiring measurements of the Earth's atmosphere, surface, and interior; an information system to support scientific research; and a vigorous program of scientific research, stressing study of global-scale processes that shape and influence the Earth as …

The Use Of Crab Meal As A Supplemental Food For Juvenile Hard Clams (Mercenaria Mercenaria), Patricia Lynn Duncan

Dissertations, Theses, and Masters Projects

No abstract provided.

Morphometric And Meristic Stock Identification Of Summer Flounder (Paralichthys Dentatus), Glenn Roger Delaney

Dissertations, Theses, and Masters Projects

No abstract provided.

Biological Review And Commercial Whelk Fisheries Analysis Of Busycon Carica With Comments On B Canaliculatum And B Contrarium In Virginia, Jane Dicosimo

Dissertations, Theses, and Masters Projects

No abstract provided.

Fluctuations In The Catchability Coefficient Of Atlantic Menhaden, 1968-1982, Steven M. Atran

Dissertations, Theses, and Masters Projects

No abstract provided.

In Situ Growth And Chemical Composition Of The Giant Kelp, Macrocystis Pyrifera: Response To Temporal Changes In Ambient Nutrient Availability, Richard C. Zimmerman, James N. Kremer

OES Faculty Publications

Temporal variations in growth of the giant kelp Macrocystis pyrifera were examined in relation to ambient nutrient availability and chemical composition of mature blades, the primary site of nutrient and carbohydrate storage in M. pyrifera. The effect of nutrient availability on growth was well approximated by a Monod rectangular hyperbola, with growth saturating at ambient nitrate concentra- tions between 1 and 2 FM. M. pyrlfera was unable to generate nutrient reserves that would last beyond 30 d. Nitrogen reserves were stored as free amino acids, and generally constituted about 10 % of total tissue nitrogen. Total nitrogen content was …

Factors Regulating Settlement And Microhabitat Use By Spiny Lobsters Panulirus Argus, William F. Herrnkind, Mark J. Butler Iv

Biological Sciences Faculty Publications

Clumps of highly-branched red algae Laurencia spp. serve as important settling habitat for postlarval spiny lobsters Panulirus argus and as residence for early benthic-stage juveniles. Given choice between the 2 most abundant macrophytes in Florida Bay, Laurencia spp. and the seagrass Thalassia testudinum, postlarval and juvenile lobsters chose Laurencia spp. Postlarvae apparently use intricate algal architecture as a cue for settlement, whereas juveniles use both architecture and food abundance in selecting habitat. In tethering experiments, predation on juvenile lobsters was very high on open sand, much reduced in algal clumps and seagrass, and lowest in dense algal meadows. Predation …

Reproductive Ecology, Population Dynamics And Seasonal Movements Of The Hogchoker (Trinectes Maculatus), In The Elizabeth River, Virginia, Stephen M. Smith

Dissertations, Theses, and Masters Projects

No abstract provided.

Estuary Water Movement, John Dickerson Mitchell

Dissertations, Theses, and Masters Projects

No abstract provided.

Formation Of Longitudinal Dispersion Coefficient In Partially Mixed Estuaries And Application In A One-Dimensional Real-Time Model, Anne Catherine Wilber

Dissertations, Theses, and Masters Projects

No abstract provided.

Lateral Variability In A Coastal Plain Estuary (Fronts, Density, Lateral Circulation), Linda Mary Huzzey

Dissertations, Theses, and Masters Projects

A series of observations of the density distribution across the York River estuary documents distinct lateral differences in density and degree of vertical mixing. The magnitude of the density differences varies throughout the tidal cycle; maximum lateral gradients occur at times of minimum current. When the density distribution is sufficiently inhomogeneous, longitudinal estuarine fronts are generated. These fronts are axially aligned, up to several miles in length, and are apparent for less than 2 hours at any given location. Although the density difference across the frontal boundary is often small, horizontal pressure gradients acting over a broad frontal region generate …

Parasite Community Structure In Summer Flounder: Paralichthys Dentatus (Linnaeus), Of The Chesapeake Bay, Maura E. Jansen

Dissertations, Theses, and Masters Projects

No abstract provided.

A Morphological Study Of The Pharyngeal Sac Of Two Species Of Stromateid Fishes: Perrilus Triacanthus And P Paru, Thomas R. Sminkey

Dissertations, Theses, and Masters Projects

No abstract provided.

The Role Of Picoplankton In Phytoplankton Dynamics Of A Temperate Coastal Plain Estuary, Robert Triau Ray

Dissertations, Theses, and Masters Projects

No abstract provided.

Contribution To The Hydrobiology Of The York River: Predicting Surface Mixed Layer Depth (Destratification, Tidal, Semilunar, Virginia), Donald Max Hayward

Dissertations, Theses, and Masters Projects

Destratification in the York River, USA, during high spring tides is the result of the interruption of normal two-layer estuarine flow by advection of relatively fresh water in to the River mouth from the Chesapeake Bay. This is due to the presence of a longitudinal salinity gradient in the Bay and a difference of tidal current phase between the River and the Bay. Similar behavior is seen in other subestuaries of the Chesapeake Bay and may be common in subestuary-estuary interactions. Correlation and regression analysis are used to examine relationships between stratification variation in the lower York River and a …

Wind-Driven Upwelling In The Vicinity Of Cape Finisterre, Spain, Charles R. Mcclain, Shenn-Yu Chao, Larry P. Atkinson, Jack O. Blanton, Frederico De Castillejo

CCPO Publications

Observations and numerical simulations of upwelling along the Galician coast of Spain during April 1982 are presented. In situ measurements include shipboard determinations of hydrographic and biological parameters from a grid of stations covering the continental shelf from Cape Finisterre to Ria de Vigo, sea level data from Vigo and La Coruña, and wind stress estimates derived from the ship winds and from surface pressure charts. Sea surface temperature information and pigment concentration information have been obtained from a sequence of satellite images from the NOAA 7 advanced very high resolution radiometer and the Nimbus 7 coastal zone color scanner, …

Nearshore And Surf-Zone Morphodynamics : A Global Environmental Model For Predicting Hazards And Changes, L. D. Wright, N. C. Shi, John D. Boon

Reports

The long-term goal of the project has been to develop improved, accurate predictability of nearshore, surf zone, and beach hydrodynamic and morphologic assemblages, based on lucidation of the universal principles governing nearshore and surf zone morphodynamic behavior.

Nearshore And Surf-Zone Morphodynamics: A Global Environmental Model For Predicting Hazards And Changes. Appendix 6. Standing Waves On A Pronounced Bar Trough Beach, Nungjane C. Shi, L. D. Wright

Reports

The hypothesis that a pronounced bar-trough surf zone topography favors resonance of standing waves with antinodes located over the bar is examined. Numerical and field investigations of standing waves in a bar-trough surf zone suggest a selective trapping of wave energy at specific resonant frequencies in the subharmonic and the high frequency infragravity bands and a possible suppression of lower frequencies. The resonant frequencies predicted by the numerical model remain fairly constant throughtout the tidal cycle due to the small tidal range typically associated with a bar-trough beach. Cross-shore bar migration changes the resonant frequencies. Numerical simulations show that an …

Interactive Modification Of Quadratic Multiobjective Water Resources Planning Strategies, Paul J. Killian, Richard C. Peralta

Technical Reports

An interactive method is presented for modifying a compromise solution to a multiobjective water resources planning stategy by changing constraining conditions on regional objectives and local variables. The method is illustrated by modifying a bicriterion, sustained groundwater withdrawal strategy for minimizing the cost of meeting regional water demand on the Arkansas Grand Prairie. The strategy was developed using a model in which the finite difference form of the two-dimensional groundwater flow equation is embedded in an optimization process. The quadratic optimization is accomplished by utilizing the General Differential Algorithm to obtain values of the drawdown, pumping rate, and recharge rate …

Seismic Modelling And Paleoceanography At Dsdp Site 574, Larry A. Mayer, Tom H. Shipley, Fritz Theyer, Roy H. Wilkens, Edward L. Winterer

Affiliate Scholarship

The analysis of high-resolution watergun seismic profiles collected in support of DSDP Leg 85 drilling reveals sev eral major, regionally traceable reflectors that can be correlated over more than 360,000 km2 in the central equatorial Pacific. Synthetic seismograms generated from shipboard physical property measurements (carefully corrected to in situ values) for DSDP Site 574 show excellent agreement with the field records; the agreement suggests that the traveltime to-depth conversion is accurate and permits the precise (± 5 m) location of reflectors in the cored section. The reflectors can be dated (±0.5 Ma) as follows: Orange, 21.5 to 22.5 Ma; Yellow, …

Initial Reports Of The Deep Sea Drilling Project, Vol. 85, Larry A. Mayer, Fritz Theyer, John A. Barron, Dean A. Dunn, Tim Handyside, Scott Hills, Ian Jarvis, Catherine A. Nagrini, Nicklas G. Pisias, Annick Pujos, Tsunemasa Saito, Paul Stout, Ellen Thomas, Norbert Weinreich, Roy H. Wilkens

Affiliate Scholarship

Covering Leg 85 of the cruises of the Drilling Vessel Glomar Challenger Los Angeles, California, to Honolulu, Hawaii March-April 1982.

Includes six chapters:

1. INTRODUCTION: BACKGROUND AND EXPLANATORY NOTES, DEEP SEA DRILLING PROJECT LEG 85, CENTRAL EQUATORIAL PACIFIC

2. SITE 571

3. SITE 572

4. SITE 573

5. SITE 574

6. SITE 575

Proceedings Of The First Arkansas Water Conference, Randy Young, Alice T. Gamache

Technical Reports

The purpose of this conference is to: Discuss Arkansas water problems and opportunities for addressing those problems. In the water resources management arena, Arkansas is truly the "Land of Opportunity" as our motto states. Serve as a public forum to stimulate thought and interest in Arkansas' water resources.

Somalia Fisheries Development: Past, Present And Future, Bruce Barbour

Marine Affairs Theses and Major Papers

This paper is being presented in three distinct parts. Each section deals with fisheries development in Somalia, East Africa, past, present and future. The first section focuses on a project proposal by a World Bank/U.N. FAO joint effort. This proposal exemplifies a traditional approach to development. This traditional approach will be defined and then evaluated. The second section is a report of the authors consultancy to the Somali government concerning the development of the fisheries within the Coastal Development Projects jurisdiction. The approach employed was one of first defining the problem and then working on solutions. This section is being …