Environmental Monitoring Commons^™

Fisheries Report No 38 - The Shark Bay Prawn Fishery (1970 - 1976), J. W. Penn, R. W. Stalker

Fisheries Research Reports

The existence of prawn stocks in Shark Bay, Western Australia, has been known since 1904 when the sailing ketch "Rip" on charter to the Western Australian Government, trawled large quantities of prawns from the area between Bernier Island and the mainland, Gale (1905). Although the Fisheries research vessel "Lancelin" trawled potentially commercial quantities of prawns from Shark Bay in the early 1950's, it was not until 1962 that a regular fishery was begun.

Today the prawn stocks of Shark Bay support Western Australia's largest and most consistent prawn fishery, having an annual production currently exceeding 2 000 tonnes. The catch …

Turbulence Spectra Above A Vegetated Surface Under Conditions Of Sensible Heat Advection, Raymond P. Motha, Shashi B. Verma, Norman J. Rosenberg

National Drought Mitigation Center: Faculty Publications

Spectra of vertical and horizontal velocity, air temperature and humidity fluctuations were analyzed from measurements made over a well-watered alfalfa crop under conditions of sensible heat advection. Vertical velocity and air temperature spectra as well as cospectra of momentum, sensible heat and water vapor were found to be dependent on atmospheric thermal stratification. These spectra and cospectra were shifted toward higher frequencies under advective as compared to lapse conditions. These results indicate that the predominant eddy sizes are relatively smaller under advective conditions. Humidity spectra, on the other hand, were independent of daytime thermal stratification conditions but were influenced by …

Sand Dune Project Stabilises Erosion, Department Of Agriculture, Western Australia

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

Read how the Department of Agriculture's Soil Conservation Service and the Department of Conservation and Environment worked with the Rockingham Shire to upgrade the road and protect the sand dunes.

Potential Use Of Hydroelectric Facilities For Manipulating The Fertility Of Lake Mead, Larry J. Paulson, John R. Baker, James E. Deacon

Publications (WR)

Analysis of historical nutrient data for Lake Mead indicates that the fertility of the reservoir has decreased which may be the cause for a corresponding decline in the largemouth bass population. However, it appears that fertility can be manipulated by altering the operation of the dam. The depletion of nutrients in the euphotic zone by phytoplankton and subsequent accumulation in the hypolimnion during summer and fall provide a natural nutrient gradient from which water of varying fertility can be drawn for discharge. This combined with alterations in the depth or seasonal pattern of discharge can possibly be used to enhance …

Use Of Fishes And Macroinvertebrates In The Assessment Of Water Quality In An Illinois Stream Receiving Sewage Effluents, Robert George Mosher

Masters Theses

Kickapoo Creek is a medium sized, warm water stream located in the central part of Coles County, Illinois. The creek is the receiving stream for the sewage effluent of the cities of Mattoon and Charleston which recently began treating sewage to the tertiary level. In 1967-70, the fish population of the creek was intensively surveyed at a time when a less advanced method of sewage treatment was employed. This study provided a baseline of information from which a portion of the present study is founded.

Fish were collected from 5 sampling stations utilizing capture techniques comparable with those used in …

Analysis Of Lead In Freshwater Clams From The Embarrass River, Coles County, Illinois, Kwaku D. Nantwi

Masters Theses

Twenty-two freshwater clams of various genera were collected by hand from two sites on the Embarrass River located at 240 meters and 400 meters downstream from the dam at Lake Charleston and at depths of .4 and 2.5 meters. Ten grams of gill tissue from each clam was prepared by furnace ashing, dissolved in 30 ml. of acid mixture and analyzed for lead content using an atomic absorption spectrometer. The average lead concentration for the clams was 3.60 ppm, while that of the ambient water was 0.33 ppm indicating that these local bivalves show a lead biocentration of about ten …

Distribution Of Phytoplankton In Nebraska Lakes, F. A. Morris, M. M. Morris, W. D. Taylor, L. R. Williams, S. C. Hern, V. W. Lambou

United States Environmental Protection Agency: Publications

The National Eutrophication Survey was initiated in 1972 in response to an Administration commitment to investigate the nationwide threat of accelerated eutrophication to freshwater lakes and reservoirs. The Survey was designed to develop, in conjunction with State environmental agencies, information on nutrient sources, concentrations, and impact on selected freshwater lakes as a basis for formulating comprehensive and coordinated national, regional, and State management practices relating to point source discharge reduction and nonpoint source pollution abatement in lake watershed.

The Survey collected physical, chemical, and biological data from 815 lakes and reservoirs throughout the contiguous United States. To date, the Survey …

State Of The Fisheries Report 1977, Department Of Fisheries And Wildlife, Western Australia

Status Reports of the Fisheries and Aquatic Resources

The total value of the fisheries of Western Australia is the highest of any of the States, and the Western Australian rock lobster fishery is the most valuable single fishery in Australia.

Handbook Of Remote Sensing Imagery Of Connecticut, Daniel L. Civco, William C. Kennard, Michael Wm. Lefor

Storrs Agricultural Experiment Station

No abstract provided.

Organochlorine Pesticide Residue, Physico-Chemical, And Bacteriological Profile Of The Lower Rio Grande River Of Texas, Juan H. Gonzalez

Theses and Dissertations - UTB/UTPA

An investigation was conducted to determine if the widespread and abundant use of organochlorine pesticides in the Lower Rio Grande Valley of Texas has had any effect on the microbial flora in the water and in the bottom sediments of the Lower Rio Grande River of Texas.

Rio Grande River water and bottom sediments were cultured for microbial flora, were analyzed for pesticide residues, and the physicochemical properties of the water were determined. Samples were taken at four different sites during a ten month sampling period in 1974.

Traces of organochlorine residues were found in the water, and higher concentrations …

Extreme Evapotranspiration By Irrigated Alfalfa: A Consequence Of The 1976 Midwestern Drought, Norman J. Rosenberg, Shashi B. Verma

National Drought Mitigation Center: Faculty Publications

The rate of evapotranspiration by irrigated alfalfa at Mead, NE (41°09'Nj 96°30'W, elevation 354 m) reached record levels in 1976. Evapotranspiration was measured with precision weighing lysimeters in a field 1.9 ha in size. Evapotranspiration ranged during the growing season from 4.75 to 14.22 mm day^-l and exceeded 10 mm day^-I on one-third of the days studied. On each day of study the ratio of latent heat flux density (LE) to the sum of the net radiation and soil heat flux densities (Rn+S) was such that LE/ (Rn+S) > 1, indicating the occurrence of significant …

Fisheries Report No 35 - Fish And Exploited Crustaceans Of The Swan-Canning Estuary, R C.J. Lenanton

Fisheries Research Reports

Fishes of the Swan-Canning estuarine system are typical of those found in other lower west coast estuarine systems of Western Australia. Species representing three families of elasmobranchs, several of which are commercially important, twenty families of teleosts, and two families of crustaceans (Table 1) commonly occur in this estuarine system. The many other species which occur less commonly in the Swan- Canning estuary are mostly members of the additional families listed in Table l.

The information contained in this document was made available for use by the authors of the following two publications : -

Forbes and Fitzkardinge (1977) Swan …

Fisheries Report No 32 - The Wildlife Of The Proposed Wandana Nature Reserve, Near Yuna, Western Australia, A. A. Burbidge, P. J. Fuller, A. Mccusker

Fisheries Research Reports

Following a Cabinet endorsed recommendation by the Environmental Protection Authority in 1976 an area of vacant Crown land (the Wandana Area) north-east of Yuna, Western Australia, was examined during March and September, 1977.

The geology, soils and vegetation of the area are described and annotated lists of mammals, birds, reptiles and amphibians are presented. The area lies near or on the boundary of the South- Western and Eremaean Botanical Provinces and vegetation formations typical of both occur. The vertebrate fauna is a mixture of South-Western and Eyrean species and is especially rich in reptiles, 41 species being recorded. Comparisons between …

Fisheries Report No 36 - Utilization Of The Bunbury And Geographe Bay Marine Resource By Professional And Amateur Fishermen, Michael H. Walker

Fisheries Research Reports

Utilization of the Bunbury and Geographe Bay marine resource by professional and amateur fishermen was investigated by personal interview, distribution and analysis of research log sheets, and examination of commercial statistics for the area, published by the Australian Bureau of Statistics.

Total professional production for the years 1966/67 - 1974/75 for Geographe Bay varied between 225517 and 1218049 Kg (mean 497175) with a mean annual value to fishermen of $427708. Production for the Bunbury marine area varied between 157666 and 333810 Kg (mean 226526) with a mean value to fishermen of $311008. For the 1975/76 season the total production was …

The Utah Ecology Project: Ecological Impact Of Weather Modification Studies In The Uinta Mountains, United States Deparment Of The Interior, Bureau Of Reclamation

Elusive Documents

The Uinta Mountains are located in extreme northeastern Utah and

northwestern Colorado. The major portion of the range and all areas

rising above 3,050 m (10,000 ft) lie within five Utah counties (Daggett,

Duchesne, Summit, Uintah and Wasatch). The high elevation segment of

the range in Utah is commonly referred to as the High Uintas. This

report will consider only the so-called High Uintas.

Plants As Pumps, E A N Greenwood

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

Native species vary greatly in their ability to pump ground water.

CSIRO studies are measuring water use by different plants to plan revegetation strategies.

Water Resources Aspects Of Coal Transportation By Slurry Pipeline, James W. Moore

Arkansas Water Resources Center Technical Reports

No abstract provided.

Fisheries Report No 30 - The Wildlife Of The Proposed Karroun Hill Nature Reserve, Western Australia, W. K. Youngson, N. L. Mckenzie

Fisheries Research Reports

Plants and vertebrate animals were recorded from a proposed 300 000 ha nature reserve centred on Karroun Hill in the goldfields of Western Australia (30°03'S; 118°02'E).

Plant communities are described in terms of their structurally important species and related to local physiography.

Fifteen native mammal species, sixty-four bird species, twenty-four reptile species and one amphibian were recorded. Annotated lists are presented. The wildlife reflects the transitional nature of the Coolgardie Botanical District. Both Eremean and South Western Province species were recorded.

Final Report: Lake Mead Monitoring Program, James E. Deacon

Publications (WR)

The Lake Mead Monitoring Program has continued to develop information on the limnological condition of Lake Mead. We have significantly increased our analytical capabilities this year by developing a cooperative project with the U.S. Bureau of Reclamation and continuing our cooperative program with E.P.A. We also were able to derive significant benefit from the reviews of the Pollution Abatement Project written by Clair Sawyer and Charles Goldman. Partially as a result of these reviews we have had the opportunity to interpret and more fully explain the significance of our work to a wider public audience than would otherwise have been …

Beef Cattle Feedlot Runoff And Control In Eastern Nebraska, L. P. Schram, Lynn R. Shuyler

United States Environmental Protection Agency: Publications

This study was initiated to determine operational characteristics of runoff control facility components for beef cattle feedlots.

A runoff control facility was designed and constructed for a 3,000 head capacity feedlot in eastern Nebraska. Components of the runoff control facility included debris basins inside the pen and outside the pen, a holding pond, and a disposal system.

Results indicated that design volumes for the debris basins and holding ponds were effective in controlling runoff from the lots caused by snowmelt and rainfall for climatic conditions within eastern Nebraska. Characteristics of runoff transported solids from this large lot compared favorably with …

State Of The Fisheries Report 1976, Department Of Fisheries And Wildlife, Western Australia

Status Reports of the Fisheries and Aquatic Resources

The total value of the fisheries of Western Australia is the highest of any of the States, and the Western Australian rock lobster fishery is the most valuable single fishery in Australia.

Final Environmental Statement, Southern Nevada Water Project, Second Stage, U.S. Bureau Of Reclamation

Publications (WR)

The Southern Nevada Water Project, a water supply system for the Las Vegas area, was authorized by the Acts of October 22, 1965, and July 19, 1966 (Public Laws 89-292 and 89-510). These acts authorized staged development. The first stage, completed in 1971, consists of intake facilities at Lake Mead, eight pumping plants, a main aqueduct 2-1/2-miles long, a 4-mile-long tunnel, and 30 miles of pipelines and laterals. The State of Nevada constructed the Alfred Merritt Smith Water Treatment Facility in conjunction with the first stage. The first stage system has the capacity to deliver 132,200 acre-feet per year.

The …

Limnological Aspects Of Lake Mead, Nevada-Arizona, John R. Baker, James E. Deacon, Thomas A. Burke, Samuel S. Egdorf, Larry J. Paulson, Richard W. Tew, Bureau Of Reclamation

Publications (WR)

Lake Mead is a deep, subtropical, moderately productive, desert impoundment with a negative heterograde oxygen profile occurring during; the summer stratification. investigations of the Boulder Basin of Lake Mead by the University of Nevada were initiated in November 1971. The primary objective of the study was to determine what effects industrial and sewage effluent from the Las Vegas metropolitan area, discharged into Las Vegas Bay, have had on the water quality and limnological conditions of Boulder Basin. Data from the 1975-76 period are presented in detail, with earlier data included in the summaries and discussions. Measurements of water temperature, dissolved …

The Limnetic Zooplankton Community Of Boulder Basin, Lake Mead In Relation To The Metalimnetic Oxygen Minimum, Thomas A. Burke

Publications (WR)

The limnetic zooplankton community of Boulder Basin, Lake Mead, was examined to determine the role of this community in the development of a metalimnetic oxygen minimum which regularly occurs in the lake. Analysis of the community from May 1975 to April 1976 revealed that zooplankton maintain high populations within the metalimnion during summer stratification. The species composition of the community changes noticeably during the summer, but due to advanced stages excysting from resting forms, a complete assemblage of individuals are found throughout the 74 day period studied. Thermal stratification was weak, covering a 30 meter metalimnion. Eddy currents powered by …

Fisheries Report No 20 - Trawl Caught Fish And Crustaceans From Cockburn Sound, J. W. Penn

Fisheries Research Reports

Cockburn Sound is one of the few sheltered embayments near the Perth metropolitan area and as such has been subjected to increasing usage by both the general public and industry. Historically the Sound has been a major commercial fishing area from which much of the fresh fish for the metropolitan area has been caught. More recently, as well as providing a significant commercial catch, a major sport fishery has developed in the area.

The first commercial trawling operations in Cockburn Sound were undertaken in the early part of this century when horses were used to tow small nets on the …

Fisheries Report No 31 - Pecten Scallop Survey On Southern Geographe Bay, September 1976, D. I. Heald

Fisheries Research Reports

Reports of Pecten scallops in Geographe Bay in late 1975 were followed up by a preliminary stock survey in February 1976 using 1.22 m dredges and by a more extensive survey in September 1976 using 1.22 m and 2.25 m scallop dredges and a 0.5 m* Baird grab. Two very limited concentrations of scallops were located adjacent to rough ground. The best dredge catch rates were equivalent to 44 kg per hour per standard haul and the maximum grab catch was equivalent to a density of six scallops per square metre. The extremely rough terrain resulted in considerable damage to …

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 …

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.

Water Supplies On Wheatbelt Farms : A General Picture, I A F Laing

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

In good rainfall years, farm dams provide water fo more than 50 per cent of the total stock in the wheatbelt.

Other sources include ground water supplies and the piped Comprehensive Water Scheme.

The March 1970 census included questions on farm water supplies including how farmers coped in the 1969-70 drought.

Effect Of Deforestation By The Douglas-Fir Tussock Moth On The Quality Of Streamflow And Stream Productivity Parameters, Martin Ed Hicks

All Master's Theses

The purpose of this study was to determine if deforestation by a recent outbreak of Douglas-fir tussock moth and logging of such deforested timber has had any effect on stream water quality. To determine this, seven different watersheds of three types were examined. The three types were: undamaged watersheds as controls, watersheds with deforestation and watersheds with deforestation where the timber was subsequently logged. Twenty-four variables were used to determine water quality. Included were seven biological and seventeen chemical variables.

In general, the results indicate only seasonal fluctuations and differences between watersheds due to inherent properties of individual watersheds. Increased …