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Department of Primary Industries and Regional Development, Western Australia

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Articles 1111 - 1140 of 2910

Full-Text Articles in Physical Sciences and Mathematics

The Wheat Book : Principles And Practice, W K. Anderson, J R. Garlinge Jan 2000

The Wheat Book : Principles And Practice, W K. Anderson, J R. Garlinge

Bulletins 4000 -

Contents : Environment / revised by J. Cramb, J. Courtney and P. Tille - The structure and development of the cereal plant / revised by T.L. Setter and G. Carlton - Germination, vegetative and reproductive growth / revised by T.L. Setter and G. Carlton - Crop water use / D. Tennant - Nutrition / revised by M.D.A. Bolland, R.F. Brennan, J.W. Bowden, M.G. Mason, N.K. Edwards, M.M. Riley and S.W. Gartrell - Wheat in farming systems / revised by B. Bowden, P. Blackwell, P. Carmody, M. Ewing, R. Kingwell, R. L ghman, I. McFarlane, P. Michael, P. Nelson, I. Pritchard, …


Katanning Area Land Resources Survey, Heather M. Percy, G M. Wilson, Ted A. Griffin Jan 2000

Katanning Area Land Resources Survey, Heather M. Percy, G M. Wilson, Ted A. Griffin

Land resources series

This report presents results from soil and landform mapping at a scale of 1:150,000 in the Katanning area of Western Australia. It is accompanied by two soil-landscape maps covering 1.45 million hectares in the Kojonup and Darkan area (map 1) and the Katanning and Dumbleyung area (map 2). Most of the Katanning survey occurs within the Blackwood River catchment but also covers the upper catchments of the Pallinup, Frankland-Gordon and Tone-Warren Rivers. The Katanning survey falls within the Narrogin and Katanning advisory districts for Agriculture Western Australia. Twenty one soil-landscape systems have been identified and are represented on the accompanying …


Investigation Of The Role Of The Urella Fault And The Impact Of Salinity Development In The Nebru Catchment, Upper Arrowsmith, C E. Mcconnell Jan 2000

Investigation Of The Role Of The Urella Fault And The Impact Of Salinity Development In The Nebru Catchment, Upper Arrowsmith, C E. Mcconnell

Resource management technical reports

No abstract provided.


Fish Health For Fish Farmers - 2nd Edition, Tina Thorne Jan 2000

Fish Health For Fish Farmers - 2nd Edition, Tina Thorne

Fisheries Published Reports

2nd edition.

Disease is a departure from the normal state of health of a fish or any other animal. Diseases have no doubt occurred among fishes since these animals have occupied a place on the earth. Scientific efforts to understand the causes of disease in fishes, and to attempt to control them however, have only been made during the last sixty years.

Fishes, crustaceans and molluscs, as with other animals are subject to a wide spectrum of diseases, that can be classified as infectious or non-infectious. The vast majority of disease problems in the intensive farming of aquatic animals can …


State Of The Fisheries Report 1999/2000, J. W. Penn, Fisheries Western Australia Jan 2000

State Of The Fisheries Report 1999/2000, J. W. Penn, Fisheries Western Australia

Status Reports of the Fisheries and Aquatic Resources

The State of the Fisheries document is designed as an essential supplement to the Annual Report to Parliament and provides a more detailed level of information to support the agency's non-financial performance measures.

By summarising management changes, compliance activities and research data such as landings, effort, catch rates, stock assessment and breeding stock levels, this document provides a valuable reference point for Western Australian fisheries of major importance to the commercial, recreational and aquaculture sectors. Information relevant to Fisheries WA's Fish and Fish Habitat Protection Program is also provided.

The report indicates that overall the major fish stocks which support …


Bulletin No 4315 - Western Australia's Agricultural, Food & Fisheries Industries 1999 - 2000, Besko Trhuij, Francis D'Emden Jan 2000

Bulletin No 4315 - Western Australia's Agricultural, Food & Fisheries Industries 1999 - 2000, Besko Trhuij, Francis D'Emden

Bulletins 4000 -

Fifth Edition (revised and updated) December 2000.

Western Australia’s agriculture and fisheries industries have an international reputation for providing premium quality food and fibre produce to customers around the world.

The State of Western Australia is setting the international quality standard in the production of a vast array of food, fibre and fisheries products.

Agriculture Western Australia has developed the Safe Quality Food System (SQF2000), which not only meets stringent world food standards, but is being adopted in many countries as a unique trademark of quality.

Free of many pests, diseases and pollution found elsewhere, the State offers produce sourced …


Bulletin 4446 - Ord Land And Water Management Plan 2000, Agriculture Western Australia, Community Of Kununurra Jan 2000

Bulletin 4446 - Ord Land And Water Management Plan 2000, Agriculture Western Australia, Community Of Kununurra

Bulletins 4000 -

The wise use of the land and water of the Ord has become an imperative driven by increasing awareness of the impacts of current uses on ground water and the on the quality of the Ord River itself.

We have been lucky as a community that these resources are still in reasonable order and that we have the time to address the resource management challenges associated with our use of them. There is a wide range of land and water management issues to be addressed and all those involved have responsibilities to address some of those issues.


Dalyup Catchment 2000, Esperance Catchment Support Team Jan 2000

Dalyup Catchment 2000, Esperance Catchment Support Team

Natural resources published reports

This 'State of the Dalyup Catchment' document is a snapshot of the condition of the Catchment in the year 2000. It records the current level of knowledge of the natural resources in the Catchment and discusses some of the management issues and options. This document is a benchmark and through ongoing monitoring, trends in the condition of the Catchment can be identified.

Its primary purpose is as a tool for resource planning such as a surface water management plan, river action plan or revegetation plan. It can also be used in the preparation of funding applications.


Main Issues Rural Women Experience With Information & Communication Technology, Teresa Maiolo Jan 2000

Main Issues Rural Women Experience With Information & Communication Technology, Teresa Maiolo

All other publications

This brief report will outline the main issues rural women encountered with information and communications technology. This information was derived from interviewing twenty-one rural women from the South West, Eastern Goldfields, Murchison, Gascoyne, and Kimberley regions of Western Australia.


Department Of Fisheries Annual Report Highlights 1999 - 2000, Department Of Fisheries, Western Australia Jan 2000

Department Of Fisheries Annual Report Highlights 1999 - 2000, Department Of Fisheries, Western Australia

Department of Fisheries Annual Reports

1999/2000 has marked a 'sea change' in fisheries management throughout Australia towards the principles of Ecologically Sustainable Development (ESD). This is a dynamic concept with an evolving framework that requires a balancing of social, economic and environmental considerations.

The principles of ESD - of using, conserving and enhancing the community's resources so that ecological processes, on which life depends, are maintained, and the total quality of fisheries, now and in the future, can be increased - are vital in a state, national and international context for Fisheries WA and its clients. Having fisheries that are governed under ESD principles is …


Fisheries Research Report No. 118 - A Study Into Western Australia's Open Access And Wetline Fisheries, F Crowe, W Lehre, R C J Lenanton Dec 1999

Fisheries Research Report No. 118 - A Study Into Western Australia's Open Access And Wetline Fisheries, F Crowe, W Lehre, R C J Lenanton

Fisheries Research Reports

Western Australia's wetline fishery potentially includes every licensed fishing boat in the State and encompasses a number of inter-relationships between various boats and commercial fisheries. This study covers the 'wetline' or open access fishery, which encompasses those activities associated with the unrestricted Western Australian fishing boat licence (FBL). The activities associated with this fishery involve any commercial fishing which is not covered by fisheries legislation.

A separate section entitled 'So you want to go wetlining?' is provided at page 101 as an easy reference guide to industry and others interested in wetline fishing. It is recommended that it be read …


Bulletin 4385 - Control Of Mediterranean Fruit Fly (Medfly) In Commercial Orchards, Sonya Broughton, Francis De Lima Dec 1999

Bulletin 4385 - Control Of Mediterranean Fruit Fly (Medfly) In Commercial Orchards, Sonya Broughton, Francis De Lima

Bulletins 4000 -

The Mediterranean fruit fly (Medfly) is thought to originate from tropical Africa. It is a pest in many areas of the world including Western Australia. It was first detected at Claremont in 1895 and is now found as far south as Esperance and as far north as Derby. The main area of infestation extends from Carnarvon to Bunbury.

Medfly is known to infest over 200 fruit and vegetable species. In Western Australia, stone fruit, pome fruit, citrus, guavas, figs and loquats are particularly susceptible.


Vegetation Trend In The East Kimberley Region : An Analysis Of Ground Monitoring Data From 1991-1998, Noelene Duckett, Paul Novelly, Ian Watson Nov 1999

Vegetation Trend In The East Kimberley Region : An Analysis Of Ground Monitoring Data From 1991-1998, Noelene Duckett, Paul Novelly, Ian Watson

Research Reports

This document summarises the analyses carried out on the ground monitoring data from the Kimberley region of Western Australia as part of the Natural Heritage Trust project 953024 - ‘'Development of Information Products for Reporting Rangeland Changes.”


Bulletin 4396 - Byenup Hill Focus Catchment Benefit: Cost Analysis, Allan Herbert Nov 1999

Bulletin 4396 - Byenup Hill Focus Catchment Benefit: Cost Analysis, Allan Herbert

Bulletins 4000 -

The main text of this document concentrates on the costs of the proposed strategies, and the on-farm financial benefits from forecast production changes - in particular the production differences between the 'do nothing' and 'with strategy' scenarios.

Members of the catchment group indicated however that their main focus was on preserving their capital base. Hence some discussion of the values of land lost to salt and premiums/discounts for 'landcared' vs 'unlandcared' land appears later in the report. Economics literature suggests that including changes in land values into these analyses is incorrect. It is argued that production differences are actually captured …


Observations Of Shallow Groundwater Contamination Due To Leakage Of Dairy Effluent Ponds On The Swan Coastal Plain, Wa, Richard J. George Dr, D L. Bennett, J R M Bell, Roger Wrigley Oct 1999

Observations Of Shallow Groundwater Contamination Due To Leakage Of Dairy Effluent Ponds On The Swan Coastal Plain, Wa, Richard J. George Dr, D L. Bennett, J R M Bell, Roger Wrigley

Resource management technical reports

In response to the risk of pollution of surface water from farm runoff, dairy farmers have been encouraged to install effluent storage ponds. Previous research has indicated that leachate from these storages can contribute to groundwater contamination. This project assessed the performance of storages at eight sites on the Swan Coastal Plain (SCP), WA. Groundwater conditions were monitored for over three years to study the influence of soil type, water table depth and waste water characteristics.


Miscellaneous Publication 53/99 - Ideas A Diversification Manual For The Pastoral Rangelands, Kaz Price, Lee Verios Oct 1999

Miscellaneous Publication 53/99 - Ideas A Diversification Manual For The Pastoral Rangelands, Kaz Price, Lee Verios

Farm Systems and Economics published reports

In 1993 the Pastoral Wool Industry Task Force recognised the diminishing returns to wool production and the need for Rangeland enterprise diversification and other risk management strategies

This manual has been developed to assist pastoralists through the decision making process when considering diversification and contains:

  • business and finance planning;
  • business structures;
  • legislative requirements and also includes;
  • current contacts for a range of industries

The manual has been produced in response to a range of questions from pastoralists wishing to investigate and develop alternate enterprises for the semi-arid Rangelands of Western Australia.


Results Of The Improved Soil Management & Cropping Systems For Waterlog-Prone Soils Project, Derk Bakker, G J. Hamilton, Peter I. Tipping, Cliff Spann, Doug Rowe Sep 1999

Results Of The Improved Soil Management & Cropping Systems For Waterlog-Prone Soils Project, Derk Bakker, G J. Hamilton, Peter I. Tipping, Cliff Spann, Doug Rowe

Resource management technical reports

No abstract provided.


An Assessment Of The Impact Of Ophthalmia Dam On The Floodplains Of The Fortescue River On Ethel Creek And Roy Hill Stations, A L. Payne, A A. Mitchell Aug 1999

An Assessment Of The Impact Of Ophthalmia Dam On The Floodplains Of The Fortescue River On Ethel Creek And Roy Hill Stations, A L. Payne, A A. Mitchell

Resource management technical reports

The area surveyed covered all of the floodplains of the Fortescue River, and Jigalong, Jimblebar and Carramulla Creeks which fall within Ethel Creek and Roy Hill stations. Two serious, distinct and largely unrelated environmental problems are evident on the area surveyed. The first problem is longstanding, severe landscape degradation in the form of almost complete loss of perennial vegetative cover and soil erosion (mainly scalding) due to historical overgrazing.


Fisheries Research Report No. 114 - The Western Australian Scallop Industry, D C. Harris, L M. Joll, R A. Watson Aug 1999

Fisheries Research Report No. 114 - The Western Australian Scallop Industry, D C. Harris, L M. Joll, R A. Watson

Fisheries Research Reports

Five separate commercial fisheries target the saucer scallop, Amusium balloti (Bernadi 1861) in Western Australian waters. While the average annual catch from these fisheries is around 600 tonnes of scallop meat, past catches have been highly variable with annual landings ranging from 150 to 4,400 tonnes of meat worth between $2 and $59 million. Consequently, scallops represent one of the larger single-species fisheries operating in Western Australia (WA).

A. balloti has a distribution spanning most of the WA coast, from Broome in the north around to Esperance in the south. Despite this extensive distribution, saucer scallops tend to be restricted …


Fisheries Research Report No. 115 - Statistical Analysis Of Gascoyne Region Recreational Fishing Study July 1996, Neil R. Sumner, Richard A. Steckis Aug 1999

Fisheries Research Report No. 115 - Statistical Analysis Of Gascoyne Region Recreational Fishing Study July 1996, Neil R. Sumner, Richard A. Steckis

Fisheries Research Reports

A survey of recreational fishers in the Gascoyne region of Western Australia was conducted in July 1996 to provide information required by fisheries managers. Catch rates, attitudinal, demographic and economic information from boat-based and shore-based fishers was collected by Fisheries Officers. Pink snapper (Pagrus auratus) was the primary species caught by boatbased recreational fishers in the region. Various species of whiting were the predominant catch from shore-based anglers. Most fishers interviewed (80%) supported the introduction of an upper limit on the amount of fish and fillets that a person could take away from the Gascoyne region for personal or family …


The Salinity And Hydrology Of The Upper Slab Hut Catchment, R Ferdowsian, A T. Ryder Aug 1999

The Salinity And Hydrology Of The Upper Slab Hut Catchment, R Ferdowsian, A T. Ryder

Resource management technical reports

No abstract provided.


Maritime Pine For Western Australia - Revegetation On Farms Information Kit, David Bicknell, Department Of Conservation And Land Management Aug 1999

Maritime Pine For Western Australia - Revegetation On Farms Information Kit, David Bicknell, Department Of Conservation And Land Management

Natural resources published reports

Revegetation on farms

The Revegetation on Farms Project and the material in this Information Kit is targeted at the agricultural zone of Western Australia with less than 600 mm rainfall. Some of the information is valid outside this range.

All information is provided in good faith, to help make informed revegetation decisions leading to sustainable land use.

TreeNote No 20 - Weed control in eucalypts and pines

TreeNote No 21 - Insect pests of eucalypts and pines

In search of the perfect pine - David Gough (Article)

Farming carbon - Syd Shea (Article)


The Translocation Of Barramundi. A Discussion Paper., Makaira Pty Ltd Jul 1999

The Translocation Of Barramundi. A Discussion Paper., Makaira Pty Ltd

Fisheries Management Papers

There is recognisable economic benefit to the translocation of barramundi, but there is also a need to ensure the translocation will not adversely impact upon the genetic diversity, introduce disease or impact on the natural environment and biodiversity. This discussion paper has been prepared to provide information to assist in the assessment of the possible impact of translocation of barramundi into and within Western Australia, for the purposed of recreational stock enhancement, aquaculture development and domestic stocking. In contemplating the translocation any aquatic species, signigicant economic and social benefits must be balanced with biological and environmental risks; that is, the …


Fisheries Research Report No. 111 - Sea Temperature Variability Off Western Australia 1990 To 1994, Alan Pearce, Mark Rossbach, Marion Tait, Rhys Brown Jul 1999

Fisheries Research Report No. 111 - Sea Temperature Variability Off Western Australia 1990 To 1994, Alan Pearce, Mark Rossbach, Marion Tait, Rhys Brown

Fisheries Research Reports

Analysis of temperature data from coastal waters between Shark Bay and Cape Mentelle has shown the main features of temporal and spatial variability in temperature along the Western Australian coastline. Three distinct periods of variability emerge: the annual cycle (peak temperatures generally in January-February and troughs in July-August), a few-day (weatherrelated) cycle, and the diurnal pattern.

Summer temperatures range from 24° C (South Passage) to 19° C (Cape Mentelle), and winter temperatures from 21° C (South Passage) to 16° C (Marmion). Mean annual temperature ranges (winter minimum to summer maximum) are between 3° C (South Passage) and 7° C (Alkimos), …


Bulletin 4369 - Ord River Irrigation Area - Kununurra Western Australia, Agriculture Western Australia Jul 1999

Bulletin 4369 - Ord River Irrigation Area - Kununurra Western Australia, Agriculture Western Australia

Bulletins 4000 -

The Ord River Irrigation Area (ORIA) in the Kimberley Province of Western Australia is the product of a bold and imaginative plan to develop part of the nation's tropical north for intensive agriculture by harnessing the waters of the Ord River. The principal features of the scheme are:

* A major storage reservoir formed by a dam constructed where the Ord River enters the Carr-Boyd Ranges, 160 kilometres south-east of Wyndham.

* A diversion dam, 50 kilometres further downstream, to raise the river level and divert water to be released from the major storage reservoir onto the irrigable lands.

* …


State Of The Fisheries Report 1998/1999, Jim W. Penn Jun 1999

State Of The Fisheries Report 1998/1999, Jim W. Penn

Status Reports of the Fisheries and Aquatic Resources

The State of the Fisheries document is designed as an essential supplement to the Annual Report to Parliament and provides a more detailed level of information to support the agency's non-financial performance measures. By summarising management changes, compliance activities and research data such as landings, effort, catch rates, stock assessment and breeding stock levels, this document provides a valuable reference point for Western Australian fisheries ofmajor importance to the commercial, recreational and aquaculture sectors. Information relevant to Fisheries WA's Fish and Fish Habitat Protection Program and activities undertaken on behalf ofthe Commonwealth is also provided. The report indicates that overall …


The South Coast Estuarine Fishery. A Discussion Paper., Rod Pearn, Tony Cappelluti May 1999

The South Coast Estuarine Fishery. A Discussion Paper., Rod Pearn, Tony Cappelluti

Fisheries Management Papers

This discussion paper proposes a way for the South Coast Estuarine Fishery to address issues relating to the long-term sustainable management and sharing of the fish resource.


Proposals For Community Discussion. A Quality Future For Recreational Fishing In The Gascoyne. A Five-Year Management Strategy For Recreational Fishing., Gascoyne Recreational Fishing Working Group May 1999

Proposals For Community Discussion. A Quality Future For Recreational Fishing In The Gascoyne. A Five-Year Management Strategy For Recreational Fishing., Gascoyne Recreational Fishing Working Group

Fisheries Management Papers

Gascoyne has seen a series of rapid developments in recreational fisheries management, starting with the introduction of state-wide bag limits in 1991; followed by area specific controls at Ningaloo in 1992; landing limits in Exmouth Gulf in 1993; strict controls on the take of pink snapper in Shark Bay’s inner gulfs in 1997; new bag limits for Shark Bay in 1998; and the introduction of a management system for the charter and aquatic tour industry in 1999. The management proposals presented for community discussion in this paper are aimed at maintaining or improving the quality and diversity of the Gascoyne's …


Coastal Land And Groundwater For Horticulture From Gingin To Augusta, Dennis Van Gool, Werner Runge May 1999

Coastal Land And Groundwater For Horticulture From Gingin To Augusta, Dennis Van Gool, Werner Runge

Resource management technical reports

Due to a variety of factors, including infrastructure needs, labour requirements and transport costs, horticulture is often located near major urban centres. This study focuses on the coastal plain region from Gingin to Augusta. This region accommodates over 80% of Western Australia’s population and includes the State’s major urban centres. This region accounts for over half the State’s horticultural production with a gross value of production of $244 million (adjusted ABS values, see section 1.2). Increasing population pressures and increasing demand for horticultural produce have resulted in competition for the limited land resources in this area.


Bulletin 4359 - Soils Of The Swan Coastal Plain, Mike Bolland Apr 1999

Bulletin 4359 - Soils Of The Swan Coastal Plain, Mike Bolland

Bulletins 4000 -

Almost all the soils of the Swan coastal plain are formed by material deposited by sea, rivers and wind. The Yilgarn Block, east and south of the Scarp bordering the Swan Coastal Plain (Fig. 1), rose about 40 to 50 million years ago. This caused erosion of the block by rivers and streams, and the eroded material was either deposited onto the Swan Coastal Plain or washed into the sea. The eroded material formed new soils on the Plain.

Broadly there are two major types of soils on the Coastal Plain. The first is a series of dune system near …