Oceanography and Atmospheric Sciences and Meteorology Commons^™

Changes In The Sea-Ice Brine Community During The Spring-Summer Transition, Mcmurdo Sound, Antarctica .2. Phagotrophic Protists, Diane K. Stoecker, Kurt R. Buck, Mary Putt

OES Faculty Publications

The land-fast sea-ice brine contains a diverse phagotrophic protist assemblage consisting of < 5 mum heterotrophic flagellates, Cryothecomonas spp., heterotrophic dinoflagellates, and heterotrophic and mixotrophic ciliates. Fine-scale horizontal spatial variability is a feature of this assemblage; samples taken within 1 m of each other can be dominated by different heterotrophic protists. Many of the larger heterotrophic protists found in the brine are also found in the water column. The photosynthetic ciliate Mesodinium rubrum is also common. In mid to late austral spring, the heterotrophic assemblage accounts for ca 10% of the total protist biomass in the brine and is dominated by Cryothecomonas spp. This flagellate …

Global Snow Cover Monitoring: An Update, David A. Robinson, Kenneth F. Dewey, Richard R. Heim Jr.

United States Department of Commerce: Staff Publications

Accurate monitoring of the large-scale dimensions of global snow cover is essential for understanding details of climate dynamics and climate change. Presently, such information is gathered individually from ground station networks and satellite platforms. Efforts are in progress to consolidate and analyze long-term station records from a number of countries. To gain truly global coverage, however, satellite-based monitoring techniques must be employed. A 27-year record of Northern Hemisphere continental snow cover produced by the United States National Oceanic and Atmospheric Administration (NOAA) is the longest such environmental record available. Records of Southern Hemisphere continental cover and snow on top of …

Larval Chironomids Of The St. Francis Sunken Lands In Northeast Arkansas, Betty G. Cochran, Edmond J. Bacon Jr., George L. Harp

Journal of the Arkansas Academy of Science

Sixty semi-annual collections (August 1987-July 1988) were made from 30 stations by sampling each station twice for 1.5 man-hours with an aquatic dipnet. Larval chironomids were mounted on slides and identified at 400-1000 magnifications using a Leitz Dialux 20 EB microscope. A survey of the aquatic macroinvertebrates of the St. Francis Sunken Lands in northeast Arkansas revealed 36 taxa of Order Diptera, Family Chironomidae. The taxa were used to evaluate the general health of the aquatic environment. Stations that were located within the least disturbed areas, which were old river channels and oxbows, contained the highest number of organisms and …

Environmental Analysis Of The Caddo River And Its Tributaries: Comparison Of Water Quality During 1992 With 1974-75, Kelly L. House, Jimmy D. Bragg, Clark Kuyper, T. Kent Thomas, C. Renn Tumlison

Journal of the Arkansas Academy of Science

Environmental data related to water quality of the Caddo River and its tributaries were collected from March - October, 1992, and compared with data from August, 1974 - May, 1975. Bacterial, chemical and physical parameters were investigated at six river locations and thirteen tributary sites. Ammonia, nitrates, soluble phosphorus, turbidity and fecal coliform were significantly lower, and sodium and potassium were significantly higher in 1992 than during the previous study. Bacterial loading exceeded EPA criteria at some locations during both studies.

Bulletin 4274 - Tree Planting On The High Rainfall Coastal Plain, Don Bennett, Richard George

Bulletins 4000 -

Careful planning can mean the difference between the success or failure of a tree planting program . Healthy , well-e stablished trees stand a better chance of survival, grow faster and are more resistant to insect attack. The need for time-consuming watering in summer is also eliminated.

The high rainfall coastal plain extends from Perth to Busselton and inland to the Darling Scarp. It receives about 800 to 1000 mm annual rainfall.

Site preparation is ideally started in summer. For a winter planting, decide before March where to plant, which varieties and how many trees to plant. Early planning allows …

Five Marine Resource Management Programs: Innovations And Common Themes, Louisa Rand Moore

Marine Affairs Theses and Major Papers

This paper investigates essential elements of marine resource management programs, particularly how they are initiated and what is needed for their success. The focus of this paper is on management planning for sites where marine resources are still largely intact as opposed to those which are severely disturbed. Planning is aimed at determining carrying capacity of the marine systems and limiting disturbances accordingly. Question for this inquiry were developed from research of a bay in eastern Maine where marine resources have not been severely disturbed, but are vulnerable to over-exploitation due to lack of coordinated management. Using these questions, five …

Ground Water Flow And Water Resources Investigation Of The Auburn, Summers And Shakertown Springs Karst Ground Water Basins, Logan And Simpson Counties, Kentucky, William Howcroft

Masters Theses & Specialist Projects

The City of Auburn is faced with a number of problems relating to its dependency on two karst springs, Auburn and Summers Springs, to meet its water requirements. Besides being extremely vulnerable to contamination, the springs often discharge and insufficient volume of water needed for public consumption and dilution of the City’s treated wastewater. Thus the City wishes to find an additional source of water and views nearby Shakertown Spring as a possibility. The study has three main objectives: 1) delineation of the Auburn, Summers, and Shakertown Springs ground water basins, 2) determination of the volume of available water at …

Southern Nevada Effluent Wetlands: A Proposed Cooperative Venture Between The Bureau Of Reclamation & City Of Las Vegas, Bureau Of Reclamation

Publications (WR)

Throughout North America there is a growing interest in constructed wetlands, both as relatively inexpensive, low-maintenance systems for removing nutrients from wastewater, and as a means of using municipal wastewater to enhance wildlife habitat and create public use opportunities. Because wetlands appear to have good potential as a component in the overall management of scarce water resources, the Bureau of Reclamation (Reclamation) has undertaken several cooperative research and demonstration projects to evaluate their effectiveness in a variety of local environments. While a number of projects have demonstrated that wetlands can be beneficially employed to improve water quality, few such projects …

Arkansas Agricultural Chemical Ground-Water Management Plan, Gerald King, Darryl Little, Tim Jessup, Charles Armstrong

Arkansas Water Resources Center Technical Reports

The Arkansas Agricultural Chemical Ground-Water Management Plan (SMP) is based on the Draft State Pesticide Ground- Water Management Plan Guidance and The Pesticides and Ground-Water Protection Strategy prepared by the U.S. Environmental Protection Agency (EPA). The need for a plan to protect ground water from contamination by agricultural chemicals and agents arises from evidence nationwide that using these chemicals can, in some instances, lead to contamination. In February 1988, EPA proposed a strategy to regulate certain pesticides by prohibiting their use in areas vulnerable to leaching unless a state develops and implements an acceptable management plan. The advantage of a …

Relationship Between Ground And Surface Water Quality In Karst Systems, Richard L. Meyer

Arkansas Water Resources Center Technical Reports

Springs in Northwest Arkansas may originate from relatively small fractures in rock strata or from cave systems. The water emerging from these springs is frequently used as water sources for plants, animals and humans. The quality of the ground water source and the emerging water are uncertain and frequently unknown. In addition, the opportunity to monitor changes in water quality during flow from origin (water entering the cave) to emergence is uncommon. Cave systems with definable drainage basins and accessible sampling points near the midpoint of the cave are also uncommon. Examining the interface between the quality of surface water …

Fact Sheet No.2: Water Quality And Poultry Disposal Pits, T. C. Daniel, D. R. Edwards, D. J. Nichols, K. F. Steele, Steve Wilkes

Arkansas Water Resources Center Technical Reports

Disposing of poultry that die during grow out is a serious management problem for poultry producers in Northwest Arkansas and across the country. Poultry disposal can affect water quality and the health of wildlife, livestock and people.

Arkansas Agricultural Chemical Ground-Water Management Plan - Appendices, Gerald King, Darryl Little, Tim Jessup, Charles Armstrong

Arkansas Water Resources Center Technical Reports

The Arkansas Agricultural Chemical Ground-Water Management Plan (SMP) is based on the Draft State Pesticide Ground- Water Management Plan Guidance and The Pesticides and Ground-Water Protection Strategy prepared by the U.S. Environmental Protection Agency (EPA). The need for a plan to protect ground water from contamination by agricultural chemicals and agents arises from evidence nationwide that using these chemicals can, in some instances, lead to contamination. In February 1988, EPA proposed a strategy to regulate certain pesticides by prohibiting their use in areas vulnerable to leaching unless a state develops and implements an acceptable management plan. The advantage of a …

Gis Characterization Of Beaver Watershed, H. D. Scott, J. M. Mckimmey

Arkansas Water Resources Center Technical Reports

Beaver Reservoir watershed is located in Northwest Arkansas including portions of Madison, Washington, Benton, Carroll, Franklin and Crawford counties. This watershed is important to the Northwest Arkansas region because it supplies most of the drinking water for the major towns and cities, and several rural water systems. The watershed consists of 308,971 ha with elevations ranging from approximately 341 m to 731 m above mean sea level. It includes the Springfield Plateau and the Boston Mountains provinces within the Ozark Plateau physiographic region. There are approximately 581 km of streams, 532 km of shore line, and 3712 km of roads …

Evaluation Of The Water Quality Impacts Of Land Application Of Poultry Litter, T. C. Daniels, D. R. Edwards

Arkansas Water Resources Center Technical Reports

Evaluating the effect of land application of animal waste on water quality is fraught with inherent variability due to differing infiltration rates, slope, rainfall intensity and etc . Simulated rainfall technology has been used in erosion research for decades. Generally, this technology is used on plots of sufficient size (25 x 5 m) to develop rill and interrill erosion. The object of this investigation was to adapt and modify existing rainfall simulation technology used in soil erosion research for use in evaluating water quality impacts of land application of animal waste, and to test, evaluate and demonstrate it's scientific validity. …

Effect Of Land Application Of Poultry Waste On Pesticide Loss, T. C. Daniel, D. R. Edwards

Arkansas Water Resources Center Technical Reports

The poultry industry in Arkansas is a large, concentrated, growing industry that produces a high volume of fecal waste. Most of this waste is surface applied as pasture fertilizer. Pesticides are commonly used in the poultry industry for fly and litter beetle contro land are often a component of the surface-applied poultry waste. No information exists in the scientific literature regarding the transport of this pesticide component to nearby water supplies.Our research focused on cyromazine, a feed-through larvicide used to control flies in caged-layer hen houses. Tetrachlorvinphos and carbaryl are also used in poultry waste, but these pesticides have a …

Post-Shearing Losses Of Sheep Following Cyclonic Rains, M. Holm Glass, R. Jacob

Animal production and livestock published reports

Sudden unpredicted rainfall during summer has caused high mortality rates in newly shorn sheep on at least two previous occasions. These occurred at Darkan, Western Australia, in 1982 (Buckman 1982) and at Kybylolite in the south-east of South Australia in 1960 (Geytenbeek 1982).

Geytenbeek (1982) reported an average mortality of 8.3%, which was highest for sheep within five days of shearing. The mortality declined for animals shorn more than seven days before the rain.

Buckman (1982) reported an average mortality of 27.9% which was highest within 12 days of shearing. The losses related directly to the amount of rain received. …

Reconnaissance Survey Of Nitrate Concentrations In Ground Water In Howard And Pike Counties, Arkansas, Travis Thornton, Kenneth F. Steele

Arkansas Water Resources Center Technical Reports

In recent years, the rapid growth of poultry and hog production in Arkansas has caused concern regarding nitrate contamination of the ground water. In the study area of Pike and Howard Counties, the number of hogs has increased from 3,300 hogs in 1970 to 75,000 hogs in 1990. Poultr¥ production for the area has increased from 38,933,000 per year 1n 1970 to 62,774,000 per year in 1990. As animal production increases, so does the amount of animal waste that must be disposed. Hog production is of particular concern. Typical hog operations store concentrated animal waste in lagoons prior to land …

The Helioporacean Octocoral Epiphaxum, Recent And Fossil: A Monographic Iconography, Frederick M. Bayer

Studies in Tropical Oceanography

No abstract provided.

Fact Sheet No.1: Nonpoint Source Pollution And Water Quality Of Northwest Arkansas, T. C. Daniel, D. R. Edwards, D. C. Wolf, K. F. Steele, M. J. Cochran

Arkansas Water Resources Center Technical Reports

Preservation of a clean, safe, and biologically diverse environment can capture public attention as few other issues can. Indeed, recent international cooperative efforts indicate that there is an increasing global desire to pass on to future generations an environment at least equal in quality to the one we inherited.

The International Regulation Of The Maritime Transportation Of Hazardous Cargo, Philip M. Henry

Marine Affairs Theses and Major Papers

This paper examines the subject of the international regulation of the maritime transport of hazardous cargo. For the scope of this paper, hazardous cargo includes all that material which is carried by vessels for market and as waste with the exception of oil. The study examines the trend of the regulatory process by reviewing the development of concern, international agreements, codes and the International Maritime Organization. It also provides a broad overview of international regulations governing the marine transportation of hazardous cargo and the prevention of pollution by hazardous cargo of the marine environment.

Netc Tank Farm Five Hazardous Waste Cleanup: An Investigation And Evaluation Of Cleanup Practices For Waste Oil Tanks At Netc, Newport, Ri, David J. Sisson

Marine Affairs Theses and Major Papers

My intention in this paper is to focus on the "chronic" hazardous waste problem stemming from past disposal/storage practices. More specifically, to focus on two underground storage tanks at NETC which were used for the storage of hazardous waste (waste oil tanks). It is now common knowledge that old underground storage tanks throughout the country present a potential ground water contamination hazard which must be dealt with. Over the past decade naval installations have heightened their awareness of environmental responsibilities and implemented recycling programs for the disposal of paper, glass, etc. and have even established programs for fuel collection and …

Marine Spill Response Corporation (Msrc): How It Hopes To Fill The Oil Recovery Requirements Of The Oil Pollution Act Of 1990, Gerald P. O'Reilly

Marine Affairs Theses and Major Papers

The establishment of Marine Spill Response Corporation (MSRC) is a direct outcome of OPA-90 which will have a substantial effect on domestic shipment, storage and traffic of oil. The ramifications of the law will be felt internationally and it has set a precedent for prevention of oil spills from tankers throughout the world. It will have a positive impact on the environment of the world. But it will be costly and the public will ultimately bear the burden of the environment impact.

The Politics Of Tidelands: A Case Study Of The Massachusetts Chapter 91 Program, Jane Mcnally Wright

Marine Affairs Theses and Major Papers

The Massachusetts Chapter 91 Waterways Program is a licensing program through which the Commonwealth carries out its responsibilities under the Public Trust Doctrine. It was unclear when this study was undertaken whether public participation in the program development process resulted in a different program than the draft program the state originally proposed in 1986. This qualitative case study was developed based on hundreds of pages of letters, comments and testimony from the public, press clippings and interviews. The primary finding is that public participation, particularly from so-called special interest groups, resulted in a final program which was significantly different from …

Sea Level Rise And Its Impact On Bangladesh, Carlos Alfredo Castro Ortiz

Marine Affairs Theses and Major Papers

Global temperatures are expected to increase as a result of the so-called "greenhouse" effect, causing concern among scientists who fear that the sea level may rise as much as three meters by 2100. Using mid-range seal-level-rise scenarios of 1.5 and 2 meters potential socioeconomic impacts on coastal Bangladesh are discussed. The geography is described point out the spatial extent and magnitude of potential damages. Topographic and political-administrative maps are used for population distribution and economic analyses of the areas which would be affected in the sea level rise scenarios. A valuation technique is used to project the gradual GDP loss …

Mitigation Banking: A Potential Tool For Port Planners, Laura Kelley

Marine Affairs Theses and Major Papers

Mitigation banking has been used as a means of facilitating the permit process by removing the negotiation of appropriate mitigation for development from the confines of the permit process. A developer with frequent needs to mitigate for losses associated with Section 404 and Section 10 requirements may, using a mitigation bank, consolidate mitigation and in so doing, potentially reduce mitigation costs. As a result of route maintenance, as well as expansion requirements, ports were considered to be good candidates for sponsoring mitigation bank efforts. Port use of mitigation banking has not been as expected due to a lack of available …

Sea-Surface Temperature Related Fisheries And Resource Markets, Jeffrey Michael Rasinski

Marine Affairs Theses and Major Papers

This thesis addresses the potential application of sea-surface temperature (SST) data to economic resource markets. It considers the revolution in technology and the accessibility of timely, accurate SST observations for resource markets. Specifically, it addresses issues related to pelagic fisheries and the fish meal industry. The thesis presents a discussion and overview of the upwelling ecosystem of Peru and the Peruvian anchovy (Engraulis ringens) including quantitative analysis and forecasts for the fishery and fish meal prices. This analysis is used to demonstrate the commercial application and relationship between SST and related resource markets. The thesis establishes a bioeconomic statistical model …

The Potential Loss Of Coastal Open Space Due To The Utilization Of Privately Owned Wastewater Treatment Facilities: A Case Study In Gloucester, Massachusetts, Eric W. Hutchins

Marine Affairs Theses and Major Papers

The impact of privately owned sewage treatment plants, a viable alternative to on-site septic systems, is examined in regards to future land-use patterns. It was hypothesized that the use of these facilities would lead to a greater loss of open space, in the coastal City of Gloucester, Massachusetts, than if only conventional on-site septic systems were to be permitted. Constraints to development such as zoning, wetlands, soil characteristics, parcel size, and economic viability were applied to undeveloped property in Gloucester. The results were used to identify individual parcels and calculate the respective developability based on the two different scenarios. Only …

Problems Of Fisheries Management On The Patagonian Shelf: A Decade After The 1982 Falklands (Malvinas) Conflict, Gustavo A. Bisbal

Marine Affairs Theses and Major Papers

The armed conflict between Argentina and Britain over the Falkland Islands (Islas Malvinas) early in 1982, resulted in a confusing partition of the maritime area around these islands. The military strategies and policies developed by both countries during and after the war created an unclear situation regarding limits and jurisdictions, thus delaying managerial actions and regulation enforcement over the fishing resources of the area. Several foreign fishing fleets operating in the region at the time, took advantage of the lack of protective legislation and recognized authority, resulting in overfishing of species such as squid and hake. No significant control was …

Rhode Island Marine Debris Pilot Project, Christina L. Beal

Marine Affairs Theses and Major Papers

The Rhode Island Marine Debris Pilot Project was initiated in Newport, R.I. during the summer of 1991. The objective of the project was to decrease recreational boaters' contribution to marine debris. Two methods were used to achieve this goal. First, trash and recycling disposal facilities were increased around the harbor. Secondly, educational literature on the environmental consequences of marine debris, and the law that applies to overboard disposal, were distributed throughout the local marine community. The implementation of the pilot project led to a significant increase in the amount of debris brought ashore by boaters, and a decrease in the …

Shipping Conferences: Their Future In The Face Of Political And Technological Changes, Timothy J. Helbling

Marine Affairs Theses and Major Papers

Shipping conferences developed more than a century ago because a means was required to regulate the intense competition in the international shipping industry. This competition, which is natural, was intensified because of technological innovation, high capital investment, and overtonnage. This study is undertaken to show, through a discussion of the development of conferences, tools available for their use, and current political and technological environment in which they operate, that similar conditions still exist, and although the nature of the shipping industry has been experiencing major changes in technology and operations, the conference system still offers a viable forum for negotiating, …