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Intensive Culture Of Largemouth Bass And Walleye Fry In Experimental Systems, Gerald A. Wickstrom

Electronic Theses and Dissertations

Six genera of invertebrates were made available to largemouth bass (Micropterus salmoides) fry for 25 days. Brachionus spp. was selected for during both day and night (1100 and 2300 h) for the first seven days. Cyclops vemalis was selected on days 1 - 14; it was selected for more during the day for days 1 - 7. Daphnia pulex and D. magna were selected for during days 15 - 25. As the fry grew during the study they ate significantly (P < 0.05) larger D. pulex and D. magna. Moina brachiata was not selected for; it was eaten throughout the study in approximately the same proportion as available. Diaptomus spp. And Ceanestheriella setosa were not eaten. The fry increased in mean length from 6.5 mm on day 1 to 29.8 mm on day 25 of the study. Mean daily length increase was 0.93 mm. Newly hatched walleye (Stizostedion vitreum vitreum) fry were intensively cultured on a diet of live zooplankton under three conditions for 48 days. The fry were reared in tanks under constant illumination (375 lux), in tanks under reduced illumination (105 lux), and in tanks which contained visual interceptors (400 lux). Mean survival of walleyes was 14.0% in tanks under constant illumination, 11.6% in tanks under reduced illumination, and 4.7% in tanks which contained visual interceptors. Mean unaccountable mortality of walleyes was 21.8% in constant illumination tanks, 35.7% in reduced illumination tanks, and 27.4% in tanks with visual interceptors. The fry increased in mean length from 8.6 mm at the start of the study to 36.3 mm (0.76 mm/day) in constant illumination tanks, 36.6 mm (0.76 mm/day) in reduced illumination tanks, and 33.7 mm (0.70 mm/day) in tanks with visual interceptors after 48 days of intensive culture.

Food Selectivity Of Bluegill And Green Sunfish Fry, Aaron Barkoh

Electronic Theses and Dissertations

Four genera of zooplankton and cladoceran egg cases, collected from a municipal sewage lagoon, were made available as food to green sunfish (Lepomis cyanellus) and bluegill (Lepomis macrochirus) fry, to examine their food selectivity. Green sunfish and bluegill fry ranged in size from 8.5-11.0 mm and 8.0-10.5 mm at stocking and were reared for 31 and 30 days, respectively. The gut contents of 1488 green sunfish and 1440 bluegill fry, representing day and night samples were examined. Diet composition was evaluated using the linear food selection index. Both green sunfish and bluegill fry selected for Cvclops vernalis and consistently selected …

An Economic Valuation Of South Dakota Wetlands As A Recreation Resource For Resident Hunters, Craig W. Johnson

Electronic Theses and Dissertations

In spite of efforts to conserve wetlands, intensified agriculture, water projects, and urban development annually diminish the quantity and quality of wetland resources (Weller 1981). Leitch and Danielson (1979) noted that when the discounted value of the returns to drainage exceed drainage costs there is an economic incentive to drain. If present drainage rates continue, Weller (1981) estimated that most wetlands will disappear by the year 2140. Research has only recently focused attention on the need to estimate the public value of wetland benefits and the social costs of drainage (Leitch and Danielson 1979). The disparity between private and social …

Angler Harvest Survey Of Lake Francis Case, South Dakota, Lawrence M. Miller

Electronic Theses and Dissertations

An angler harvest survey, consisting of two independent surveys, was conducted on Lake Francis Case, South Dakota, from May through October 1981, and April through October 1982. An aerial angler count was used to estimate angle pressure, and an angler interview survey was used to estimate catch rate. In 1981, a section of Lake Francis Case in the vicinity of the Gregory County Pump Storage Project (Zone 2) was surveyed. IN 1982, the survey was expanded to include the entire reservoir (additional Zones 1 and 3). Estimated fishing pressure for Zone 2 in 1981 was 188,631 angler-hours and in 1982 …

Use Of Eastern South Dakota Shelterbelts By Nesting Birds Of Prey, Scott E. Norelius

Electronic Theses and Dissertations

This study was conducted in 1979 and 1980 to determine abundance, productivity, food habits, and ranges of raptors utilizing shelterbelts were in a 78 km² Brookings County study area. The shelterbelts were heterogeneous stands of trees and shrubsplanted in linear rows. Major tree species included elm (Ulmus spp.), green ash (Fraxinus pennsylvanica), cottonwood (Populus deltoids), Russian olive (Elaeagnus angustifolia), and eastern red cedar (Juniperus scopulorum). Major shrub species included honeysuckle (Lonicera tatarica) and lilac (Syringa vulgaris). Ninety-eight raptors were observed on the study area over the 2 breeding seasons investigated (1979-1980). Species observed were the American kestrel (Falco sparverius), Swainson’s …

Soft-Op User Manual For Microcomputer Aided Process Control Of The Oxidation Ditch Facility, Drew D. Mcintyre

Reports

This manual is intended to be used in conjunction with the program SOFT-OP. SOFT-OP was developed at the Division of Environmental Engineering, Utah State University, Logan, Utah. Funding for the program development was supplied by Tremonton City Corporation, Tremonton, Utah. Foreword: SOFT-OP has been developed for use by operators of oxidation ditch wastewater treatment plants (extended aeration activated sludge). The program serves as a useful took in daily plant operation by assisting the operator in various tasks related to process control. These tasks are grouped within the following three classifications: 1. Implementation of control parameters 2. Analysis of process characteristics …

Changes In The Lower Chesapeake Bay Food-Chain In Presence Of The Sea Nettle Chrysaora-Quinquecirrha (Scyphomedusa), David Feigenbaum, Michael Kelly

OES Faculty Publications

The abundance of 4 levels of the lower Chesapeake Bay food chain (Chlorophyll a, herbivores, ctenophore Mnemiopsis leidyi, and Scyphomedusa Chrysaora quinquecirrha) were moni­tored twice weekly at 4 stations from May 10 through Sep 30, 1982 in the Lafayette and Elizabeth Rivers (Virginia). The herbivore standing stock, largely copepods, declined sharply in late May when M. Jeidyi appeared, but rebounded a month later when C. quinquecirrha medusae reduced the ctenophore population. Despite the additional presence of Aurelia aurita (Scyphomedusa) from Jul onward, herbivore abundance remained at moderate levels until the end of the study period. Phytoplankton abundance fluctuated …

Breeding Birds In Cedar Stands In The Great Dismal Swamp, Karen A. Terwilliger, Robert K. Rose

Biological Sciences Faculty Publications

The Great Dismal Swamp located in the coastal plain on the Virginia- North Carolina border, has long been recognized as a vegetationally distinctive region with many unusual geological and biological features. Formerly at least twice the currently estimated size of 85,000 hectares (Carter 1979), the Great Dismal Swamp is still shrinking because of a dropping water table caused by more than 200 years of logging, ditching, and other human activities. In 1973, the Union Camp Corporation donated a 19,871-hectare tract located near Suffolk, Virginia. to The Nature Conservancy, which transferred the land to the U.S. Fish and Wildlife Service. This …

Sediment Oxygen Demand In Streams Receiving Sewage Effluent, John J. Schultz

Masters Theses

Sediment oxygen demand is an important factor in determining dissolved oxygen concentrations in streams and rivers subjected to sewage effluents and other sources of organic pollution. Resuspension of sediments during bottom-scouring after periods of heavy precipitation exerts an immediate and increased oxygen demand on the water and is expected to decrease sediment oxygen demand at the site.

Sediment samples were collected monthly from April through November, 1983 from three small streams subjected to sources of organic pollution. The samples collected were arbitrarily categorized into wet and dry period samples based on the total precipitation between collection dates. Sediment oxygen demand …

Review Of In-Place Treatment Techniques For Contaminated Surface Soils - Volume 2: Background Information For In Situ Treatment, Ronald C. Sims, Darwin L. Sorensen, Judith Sims, Joan E. Mclean, Ramzi Mahmood, R. Ryan Dupont

Reports

This second volume of a two volume manual on in-place treatment of hazardous waste contaminated soil supports the treatment methodology described in Volume 1 (EPA- ). The information presented on monitoring to determine treatment effectiveness, characterization and evaluation of the behavior and fate of hazardous constituents in soil/waste systems, and properties (including adsorption, degradation, and volatilization parameters) for various compounds is intended to help the manual user in making more complex decisions and in selecting analyses concerning site, soil, and waste interactions. This report was submitted in partial fulfillment of Contract No. 68-03-3113 by Utah State University under the sponsorship …

Direct Filtration Versus Conventional Water Treatment In The Intermountain Region, Susan K. Burns, V. Dean Adams, Steel B. Maloney

Reports

The direct filtration water treatment scheme does not include sedimentation and in some cases flocculation. Compared to conventional treatment, direct filtration has lowered capital costs, reduced space requirements, decreased sludge quantities, and reduced coagulant dosages. One objective of this research was the statistical comparison of the direct filtration, Utah Valley Water Purification Plant (Orem, Utah) and the conventional Little Cottonwood Water Treatment Plant (Salt Lake City, Utah). These treatment plants are the two most compatible treatment plants having the highest correlation of source water in the local area. The Little Cottonwood plant receives approximately 65 percent of its sources water …

The Development Of Construction And Equipment Standards To Promote Tanker Safety And Pollution Prevention, Kathleen M. Daly

Marine Affairs Theses and Major Papers

Upstaged by a dramatic series of tanker accidents in the winter of 1976-77, the Carter Administration responded by meeting drama with drama - the President proposed a bold set of recommendations that, if adopted, would surely improve tanker safety but would, at the same time, impose considerable economic hardship on an already faltering tanker industry. The purpose of this study is to examine the specific construction and equipment requirements put forth in the Presidential Initiatives, as they later became known, and trace the modifications made to them before they were incorporated into the tanker safety laws of the U.S. and …

Chartering Recreational Boats In The United States: A Compilation And Analysis Of Applicable Federal Maritime Law, Mary Nathalie Peter

Marine Affairs Theses and Major Papers

No single primary source exists to provide current and would-be participants in recreational charter boat operations in the United States with a basic legal understanding of their rights and obligations. The relevant federal maritime standards, laws, regulations, and judicial interpretations are scattered in isolated codebooks, reporters, and bulletins. Moreover, the governing body of law for boat chartering is admiralty law, which has been shaped throughout the centuries primarily by the traditions and dictates of the commercial shipping and shipbuilding industries. As a result, the logic behind the admiralty framework tends to be obscure when viewed in the context of a …

State Of The Fisheries Report 1983, Department Of Fisheries And Wildlife, Western Australia

Status Reports of the Fisheries and Aquatic Resources

Western Australia continues to be one of the leading States in Australia. The total gross value of fish, crustaceans and molluscs for 1982/83 was $126 million (Table 1) to which may be added the value of the pearl culture industry resulting in a total value of approximately $140 million.

Checklist, Distribution And Bibliography Of Mongolian Siphonaptera, M. Kiefer, M. Krumpal, N. Cendsuren, V. S. Lobachev, N. Chotolchu

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Flea fauna in Mongolia is relatively unknown though the publications dealing with this problem are not few. The p·apers until 1966 are concerning ma.inly the territories delimited by natural plagua focis. Only in later periods, simu ltaneously with the intensive zoological research of the whole territory of the Mongolian People's Republic, the more detailed research of flea fauna on the whole territory takes place. The systematic research began thanks to the Mongolian-German and MongolianHungarian expeditions, the members of which have collected considerable parasitological material covering the part of northern, eastern and western Mongolia. Since the year 1970 the Soviet-Mongolian academic …

Table Of Contents, William F. Andelt

Great Plains Wildlife Damage Control Workshop Proceedings

Proceedings

Keeping Squirrels And Roof Rats Out Of Structures, Jonathan W. Linn

Great Plains Wildlife Damage Control Workshop Proceedings

component of any total pest control program. There are many species of rodents that enter buildings, usually for the purpose of shelter and/or food. They may enter in the fall to survive the winter weather, or in the spring to have a safe place to give birth to their young. Much has been written about rodent-proofing buildings to keep out both native and introduced rats and mice. This article will try and cover methods that can be used to keep out our native squirrels, which include the eastern gray squirrel (Sciurus carolinensis), the western gray squirrel (Sciurus griseus), the eastern …

Current Events In Extension Wildlife Damage Control In The United States, James E. Miller

Great Plains Wildlife Damage Control Workshop Proceedings

The Cooperative Extension Services (CES) within each state and territory of the United States and their federal partner, the Extension Service, United States Department of Agriculture (USDA), have long recognized the need for, and responsibility of, providing educational programs in wildlife damage control to both rural and urban clientele. The system employed to implement these educational programs was established early in this century dating back to passage of the Smith-Lever Act in 1914. Through the years since that time, the strengths of this system have been the recognition of the need for a continuing spirit of cooperation with other federal …

Keynote Address, Robert J. Pool

Great Plains Wildlife Damage Control Workshop Proceedings

Most modern environmentalists during their formative years have had little actual contact with wildlife under natural conditions. Their wildlife philosophies have been developed via the mass media and from experiences with animals as pets or confined in zoos. In general, modern environmentalists are sincere, dedicated, idealistic and enthusiastic, but they often lack realism and are blessed with the innocence of naivete. The majority of people in the United States now exhibit strong affection for wild animals and are deeply concerned over any actions perceived as causing pain to individual animals. These attitudes towards wild animals will impact on future wildlife …

Wildlife Damage Control Problems And Concerns Of State Wildlife Agencies, F. Robert Henderson

Great Plains Wildlife Damage Control Workshop Proceedings

Wildlife damage seems to be a greater concern today than 10 years ago. Controlling wildlife damage is a complex issue and the responsibility for its accomplishment has been given to diverse groups of private, local, county, state and federal entities. The types of programs vary from state to state, and often within a state several different programs are conducted by different agencies. It is the purpose of this paper to attempt to present information on the concerns of the state wildlife agencies regarding wildlife damage problems.

Some International Approaches To Rat Control, Walter E. Howard

Great Plains Wildlife Damage Control Workshop Proceedings

There are many basic requirements concerning the political structure, financial support needed, proper organization, staff training, public education, laws and regulations, and the keeping of good records, which must be adequately considered before a rat control program can become successful. Likewise, there are also a number of basic principles concerning rodent control that must be understood and adhered to. Some villages in Korea and the country of Kuwait will be used as examples of new rat control approaches.

The Wildlife Society's Committee On Wildlife Damage Control, Terrell P. Salmon

Great Plains Wildlife Damage Control Workshop Proceedings

In 1982, the President of the Wildlife Society created a Committee to make recommendations on what the Society should do to be an attractive organization for wildlife professionals specializing in wildlife damage control. The Committee, composed of 7 professionals in wildlife damage control, made 13 recommendations to the Society. Which, if implemented will improve the Society's relationship with wildlife damage control professionals.

Workshop-Discussion Session, Joesph M. Schaefer

Great Plains Wildlife Damage Control Workshop Proceedings

The purpose of the workshop-discussion session was to establish a list of ideas that would provide the best focus and direction to improve wildlife damage control programs. During this session the Nominal Group Technique (NGT) (Delbecq et al. 1975) was used to: 1) identify and rank obstacles that limit the effectiveness of wildlife damage control efforts, and 2) generate possible solutions to the most important obstacles. This format allowed equal and full participation and was successful in generating many original ideas.

Reducing Goat Losses To Predators: Past Vs. Present Producers In Texas, Jerry H. Scrivner

Great Plains Wildlife Damage Control Workshop Proceedings

The purpose of this study was to gather information regarding the application and economic implications of predator control and husbandry methods used by 104 past and 103 present Angora goat producers in Texas. Of 7 techniques [(1) predator control by ranchers, (2) support of private or government trappers, (3) night penning of livestock, (4) confinement or semi-confinement kidding, (5) extra checking on goats, (6) the use of guard dogs, and (7) the use of scare devices] ranchers use to reduce predation losses, present producers used significantly more techniques than did past producers. Also, present producers generally implemented each technique to …

Sixth Eastern Wildlife Damage Management Conference Summary And What Lies Ahead, James E. Miller

Great Plains Wildlife Damage Control Workshop Proceedings

I want to begin by expressing appreciation to Ed Jones, Mike King, Greg Yarrow, Pete Bromley, John Heisterberg, and others on the program committee for hosting and conducting this Sixth Eastern Wildlife Damage Management Conference. I also want to express our appreciation to the exhibitors, the National Animal Damage Control Association, and The Wildlife Society (TWS) for their support. I think those of you who are still here will join me in congratulating these people, organizations, and TWS for helping ensure a successful conference. As one of the people who perceived the need for this conference in the early 1950’s, …

A Microsystem Sediment-Water Simulation Study For The Proposed Jordanelle Reservoir, Heber City, Utah, United States Department Of The Interior, Bureau Of Reclamation

Water

The technique of microsystem sediment-water simulation was used to predict water quality data for the proposed Jordanelle Reservoir, Heber City, Utah. Simulation microsystems were prepared for four sites located in the north arm of the reservoir basin including two sites located in an abandoned acid mine tailings pond. Data obtained from the tailings pond microsystems indicated that low pH water and high trace metal concentrations will exist in the north arm of the reservoir. These data suggested that some kind of membrane or compacted earth lining will be necessary to seal and contain the mine spoilage. Other sites in the …

Disposal Of Household Wastewater In Soils Of High Stone Content (1981-1983), E. M. Rutledge, C. R. Mote, D. T. Mitchell, M. S. Hirsch, M. D. Harper, H. D. Scott, C. L. Griffis

Arkansas Water Resources Center Technical Reports

Four experimental filter fields were constructed with built-in monitoring equipment in Nixa soils. These soils contain many chert fragments and a fragipan about 60 cm below the soil surface. The fragipan restricts downward movement of water and is the designlimitingfeature. The four filter fields were: 1. A "standard" filter field, 76 cm deep. The bottom of the trench was in the fragipan. 2. A "modified standard" filter field, 30 cm deep. The bottom of the trench was above the fragipan. 3. A "modified pressure" filter field, 40 cm deep. The bottom of the trench was above the fragipan. In addition, …

The Probe, Issue 38 - December 1983

The Probe: Newsletter of the National Animal Damage Control Association

The Probe National Animal Damage Control Association
No. 38 December, 1983
USFWS trying to close ADC
Ye Ed Comments
MIS Reports
Letters to Ye Ed
Meetings
Wolves

Rhode Island's Barrier Beaches: As Assessment Of Their Future, David J. Hampshire

Marine Affairs Theses and Major Papers

The lands and waters of the coastal zone have either been mismanaged or not managed at all since the early settling of the United States. Nowhere is this more evident, perhaps than along the nation's barrier beaches. Rhode Island, while not suffering nearly from the degree of development on its barrier beaches as other states, is no exception. Economic pressures brought to bear have forced federal, state, and local governments to grapple extensively with this issue. The need for the preservation of barrier beaches in their natural state cannot be overstated and is recognized by all levels of government. This …

The Probe, Issue 37 - November 1983

The Probe: Newsletter of the National Animal Damage Control Association

The Probe National Animal Damage Control Association
No. 37 November, 1983
1080
President Nixon's Executive Order No. 11643
International Association of Fish and Wildlife Agencies
EPA reports
Jerome, Idaho passed an ordinance Tuesday night regulating exotic pets and dangerous animals
Coyote Attacks
Animal Liberation Front
Erma Brombeck
Texas Trapline
Sixth Great Plains Wildlife Damage Control Workshop
Water Poisoning
Letters to Ye Ed
Grizzly Bears
Albrect Bear Foot Snare Throwarm