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Fisheries Report No 27 - A Survey Of Recreational Usage Of South Coastal Estuaries Of Western Australia, N. Caputi, R C.J. Lenanton

Fisheries Research Reports

Over recent years, factors such as the State's population increase, a generally higher standard of living which enables people to have more leisure time, and better roads, particularly from the Eastern States of Australia, have all contributed towards an increase in the general recreational usage of the Western Australian south coast estuaries.

To aid proper planning of facilities to cater for an increasing number of visitors in these south coast estuaries, management agencies must be able to quantify the recreational usage in this group of estuaries.

This survey, therefore, attempts to identify and quantify the different recreational pursuits of visitors …

Soil Properties In Relation To Cryptogamic Groundcover In Canyonlands National Park, Edgar F. Kleiner, K. T. Harper

Canyonlands Research Bibliography

A comparative study was made of the soils of a virgin grassland and an adjacent grazed area in Canyonlands National Park. Soils from the virgin site were finer textured than those of the grazed area, and the surface 5 cm contains a significantly lower amount of calcium. In addition, the surface 5 cm of the virgin site contains significantly greater amounts of phosphorus, potassium, and organic matter. Subsurface soils in the two parks are less dissimilar. Cryptogams on the virgin grassland appear to have an important influence on chemical characteristics of the surface 5 cm of soil. The difference in …

Fisheries Report No 24 - The Status Of The Salt-Water Crocodile In Some River Systems Of The North-West Kimberley, Western Australia, H. Messel, A. A. Burbidge, A. G. Wells, W. J. Green

Fisheries Research Reports

Counts were made of Salt-water Crocodiles (Crocodylus porosus) in the estuarine portions of four river systems in the northwest Kimberley, Western Australia - the Lawley, Mitchell, Roe-Hunter and Prince Regent. During the ten day survey 463 crocodiles were spotted, including 109 hatchlings. The maximum number of non-hatchling crocodiles present tin the four systems is estimated at 697. Very few large crocodiles were seen.

Populations were particularly small in the Lawley and Mitchell Rivers and the potential for recovery in this area is also small. Prospects for recovery in the Roe-Hunter and Prince Regent were a little better but further surveys …

Fisheries Report No 29 - The Predation Of Pot - Caught Western Rock Lobster (Panulirus Longpipes Cygnus) By Octopus, L M. Joll

Fisheries Research Reports

The losses to the western rock lobster fishery through the predation of pot-caught rock lobsters by octopus were estimated from samples taken on commercial boats in the four seasons 1972/73 - 1975/76. In most seasons approximately 200 000 legal-sized rock lobsters were lost. In the 1975/76 season the estimated financial loss from octopus predation was $392 000. The estimated losses probably represent minimum values. Studies of the biology and behaviour of octopus were carried out to examine the methods of detection, location and entry into rock lobster pots by octopus. The use of octopus traps in rock lobster pots significantly …

Final Environmental Statement [For] Proposed Wilderness Classification [In] Cedar Break National Monument, Utah, National Park Service; Rocky Mountain Regional Office; United States

Elusive Documents

No abstract provided.

Systems Analysis Of The Presaharan Ecosystem Of Southern Tunisia, George Novikoff, Frederic H. Wagner, Mohamed S. Hajjaj

Progress reports

No abstract provided.

Ecosym-Soil Classification And Mapping, Alvin R. Southard

Progress reports

No abstract provided.

Ecosym-Vegetation Classification, Jan A. Henderson, Neil E. West

Progress reports

No abstract provided.

Review Of Ecosystem Progress Report No. 1, W. Vaughn Frick

Progress reports

No abstract provided.

Wood Duck Nesting Boxes, Dick Gersib

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

The Wood Duck (Aix sponsa), Nebraska's only tree nesting duck, has four major requirements for breeding habitat. These requirements a r e food, cover, water, and suitable nest cavities which govern the distribution of breeding wood ducks in Nebraska. Without any one of these four requirements, wood ducks would not be able to maintain a breeding population.

Very little is known about the spring food requirements of nesting wood ducks, and only the most general comments can be made. It is known t h a t protein requirements for both the hen and ducklings are high. Pairs, especially …

Lupin Trials, J Moore

Experimental Summaries - Plant Research

Trials in lupins this year concentrated on testing herbicide for post emergence use in lupins. Of the 20 herbicides tested 12 did not cause significant decreases in crop density and/or yield. However, weed control was often poor and the herbicide phytotoxicity tended to vary between sites. (Chapman, Badgingarra and Avondale). The Chapman and Avondale trials were not harvested because of drought. Trials in 1978 should determine if any of the herbicides tested can safely be recommended. Lupins - summary. Post emergence lupin herbicides (Badgingarra Research Station) - 77BA36. Post emergence herbicides for lupins (Chapman Research Station) - 77C18. Post emergence …

The European Wasp : A New Threat To W.A, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

The European wasp was detected in Western australia for the first time in January and February 1977 in the metropolitan suburbs of Mosman Park, Cottesloe and Attadale.

So far it has only been found within an area of 8 km radius from Fremantle but the outer boundries of the infestation are still uncertain.

It is Department of agriculture policy to eradicate the European wasp, if possible, and to destroy all nests detected.

P.W.D. Supplementary Public Water Supply Schemes, J E. Davis

Journal of the Department of Agriculture, Western Australia, Series 4

Shallow wells and soaks with very limited yields were the principal water sources for the early settlers.

Hundreds of such wells were constructed by the Public Works Department in remote areas.

In the early 1930s major development of water supplies from rock catchments was begun in the central wheatbelt.

After the war, larger and more effective earth moving equipment became available. The Public Works Department rehabilitated many old excavated dams as well as constructing new ones.

Roaded catchments were also developed during this post-war period. many farmers took advantage of Public Works Department technical advise and hired a P.W.D. grader …

A Logical Approach To Wheatbelt Water Supply, Stanley Thomas Smith

Journal of the Department of Agriculture, Western Australia, Series 4

My particular task in this seminar (paper) has been to enunciate a logical approach to water recource utilisation in the wheatbelt, based on the points made by the speakers.

The Comprehensive Water Supply Scheme, K J. Kelsall

Journal of the Department of Agriculture, Western Australia, Series 4

The Comprehensive Water Supply Scheme has been a great boon to the agricultural area, and it has received strong support from all political parties. The Scheme has been responsible for increased prosperity of country towns, the decentralisation of industry, and general improvements in the standard of living.

This is a look at the development of the Scheme.

Native Plants : Water Savers In The Garden, K S. Cole

Journal of the Department of Agriculture, Western Australia, Series 4

The climate of Western Australia may be one of the best in the world for people but it is a difficult one for many of our imported, and common garden plants. as a consequence, some 70 per cent of our summer water usage is for gardens and lawns.

This is not the sort of statistic that we should accept easily or happily.

There is a solution to this problem: a new approach to home gardening is required.

The new garden is based on W. A.'s own colourful native plants, which are adapted to mild winters, hot dey summers and poor …

Runoff Estimates For Small Rural Watersheds And Development Of A Sound Design Method: Volume I. Research Report, Joel E. Fletcher, A. Leon Huber, Frank W. Haws, Calvin G. Clyde

Reports

Foreword: This report is composed of thee volumes; Volume I is the Research Report; Volume II consists of recommendations for establishing design manuals and Appendices B, C, D, E, F, G, and H, which are the design aids required for establishing design manuals; Volume III consists of Appendix A, and accumulation of the data base used in the study, FHWA chose to arrange the report as described to facilitate distribution of the results. The methods reported herein are designated as the Federal Highway Administration Methods are designed to be applied to watersheds smaller than 50 square miles but may be …

Runoff Estimates For Small Rural Watersheds And Development Of A Sound Design Method. Volume Ii, Recommendations For Preparing Design Manuals And Appendices B, C, D, E, F, G, & H, Joel E. Fletcher, A. Leon Huber, Frank W. Haws, Calvin G. Clyde

Reports

Frequency analyses of more than 1,000 small watersheds in the United States and Puerto Rico were used to develop the estimation method for design of peak flow for ungaged watersheds. This method, called the Federal highway Administration (FHWA) method, is conceptually similar to the Bureau of Public Roads (BRP) method developed by W. D. Potter. The FHWA method relates the runoff peak to easily determined hydrophysiographic parameters and is intended for use on watersheds smaller than 50 square miles. The concept of risk is incorporated inot the design procedure. The risk is the probability that one or more events will …

Mixed Integer Programming Models For Water Resources Management, Brad A. Finney, William J. Grenney, A. Bruce Bishop, Trevor C. Hughes

Reports

A regional water quality control model is developed by linking a steady-state water quality simulation model with an optimization model. The water quality simulation model can be applied to complex river systems with both point and nonpoint loads using multiple interdependent pollution parameters described by either linear or nonlinear equations. Twelve water quality parameters can be modeled simultaneously: four non conservative constituents (or conservative constituents if the decay rate is set equal to zero); coliform bacteria (MPN); phosphorus; biochemical oxygen demand (BOD); ammonia (NH3); nitrate (NO3); dissolved oxygen (DO); temperature (°C); and algae. The water quality model is used to …

Optimizing Crop Production Through Control Of Water And Salinity Levels In The Soil, J. I. Stewart, R. M. Hagan, W. O. Pruitt, R. E. Danielson, W. T. Franklin, R. J. Hanks, J. P. Riley, E. B. Jackson

Reports

Sizable investments have been made and continue to be made throughout the world to develop irrigation potentials. Recent food shortages have heightened the concern for obtaining greater returns to irrigation through improved water management and use. A knowledge of how plant growth cycles relate to moisture and salinity levels in the root zone is prerequisite to developing practical ways of maintaining optimum conditions for maximum production per unit of water concerned. This research further defines the role of irrigation timing and salinity management on crop production, and proposes practical techniques for predicting the crop response to management measures. Some of …

Proposal To Technology Transfer Office Of Water Research And Technology U.S. Department Of Interior, C. Earl Israelsen, Frank W. Haws, Donna H. Falkenborg, L. Douglas James

Reports

Executive Summary:

Rural Domestic Water System Peak Flows And Design Innovations, Optimal Water Planning Series, Trevor C. Hughes, Yukio Kono, Ronald Canfield

Reports

Planning engineers commonly use generous factors of safety for peak flow estimates in urban water supply systems both as a hedge against unforeseen growth and because economies of scale result in relatively low user costs even with such reserve capacity. Transplanting of such design criteria into the rural setting, however, simply does not work. The low density portions of rural domestic systems require very realistic design criteria or the construction costs become infeasible for the small number of customers involved. Peak instantaneous flow rates in a Utah rural system were measured continuously during two summers on three dead-end lines serving …

Climatology Of Hailstorms In Utah--The Hail Suppression Potential By Cloud Seeding, Kenneth G. Hubbard

Reports

Hail damage in Utah was examined for individual counties and the entire state. A survey of informal observes was taken and the resulting data base was analyzed. Data from NWS was also examined. County hail damage figures average 4 to 5 percent of production and ranking of counties according to dollar damage occurs in only 4 of the 29 counties (Box Elder, Utah, Millard, and Cache). In many cases the highest dollar damage occurred in the counties of greatest dollar damage should receive the greatest concentration of hail suppression effort. In addition storm severity and crop growth stage were identified …

Weather Modification Studies: The Potential For Creating And Utilizing Ice Crystals In Weather Modification Activities, Kenneth G. Hubbard

Reports

A method utilizing ice crystals to circumvent nucleation processes in cloud seeding activities is discussed in the framework of nuclei activation concepts. Ice, in the form of small crystals, would be a highly efficient cloud seeding materia up to 0 degrees Celsius. The lower limit on humidity would necessitate dispensing the crystals into air that is saturated with respect to ice but no requirement for 100 percent RH(relative humidity) was found. In fact, the lower limit varies with temperature linearly from about 95 percent RH at -5 degrees Celsius to 75 percent RH at -30 degrees Celsius. Preparation of small …

State Financing Alternatives For Water Projects Required To Support Energy Development In The Western Energy Development Area, Daniel H. Hoggan, Kirk R. Kimball, Edward H. Allen, Jay M. Bagley, Richard L. Dewsnup, Herbert H. Fullerton

Reports

No abstract provided.

Evaluation Of Southern And Central Utah Cloud Seeding Program, Geoffrey E. Hill

Reports

An evaluation of a winter operational-type cloud seeding project in Utah is made by developing meteorological predictors of target precipitation. Twenty-four hour precipitation amounts in seven unseeded years are matched with 12:00 GMT rawinsonde data to form predictor-predictand relationships. Application of the predictors to the first two years of the project indicates that the observed seeded precipitation is about what would be found in the absence of seeding.

Seedability Of Winter Orographic Storms In Utah, Geoffrey E. Hill

Reports

The primary objective of this research has been to collect and analyze data from (randomized) seeded and unseeded winter storms over the Wasatch Mountains for the purpose of developing and designing cloud seeding technology. Two field programs were conducted sequentially; the first was done by airborne seeding and the second by seeding from mountaintop generators. Analysis of precipitation estimators based upon radar and/or rawinsonde data and target precipitation show that increased precipitation due to seeding may occur under certain meteorological conditions. Favorable conditions were found when the supercooled water concentration as measured by aircraft icing rates was high. Precipitation in …

Series Intermittent Sand Filtration Of Wastewater Lagoon Effluents, David W. Hill, J. H. Reynolds, D. S. Filip, E. J. Middlebrooks

Reports

Previous researches have found single stage intermittent sand filtration to be a feasible and economic means of upgrading wastewater lagoon effluent to meet future standards. However the major constraint on their use has been the length of the filter runs. Laboratory scale and pilot-scale series intermittent sand filtration of wastewater lagoon effluents has been found to substantially increase the length of filter runs as well as produce a high quality effluent able to meet future standards. Higher loading rates were round to be possible with series intermittent sand filtration. The operation consistently produced an effluent meeting present Utah “Class C” …

A Study Of Feasibility Of State Water User Fees For Financing Water Development, Daniel H. Hoggan, O. W. Asplund, J. C. Anderson, D. G. Houston

Reports

Water user fees imposed by a state on major water uses is a possible new alternative source of state water development funds. A fee, similar to an excise tax, might be charged for the use of the water resource per se, which in a number of states is declared to be the property of the public of the state. States generally have not employed such fees as a source of operating funds for water agencies or of development capital. Only in the area of water based recreation-fishing, coating, camping, etc.—have states extensively employed user fees. The revenues from these fees, …

Water Flow Patterns In Heterogeneous Soils Under Trickle Irrigation, Abdolhossien Nassehzadeh-Tabrizi, Roland W. Jeppson, Lyman S. Willardson

Reports

No abstract provided.