Physical Sciences and Mathematics Commons^™

The Impact Of The "Profitable Perennials" Project On Adoption : An Evaluation, Jamie Bowyer, Rebecca Heath

Resource management technical reports

No abstract provided.

Setting Targets For Resource Condition In Lake Towerrinning Catchment, G Paul Raper, Leon Vanwyk

Resource management technical reports

No abstract provided.

Setting Targets For Resource Condition In Date Creek Catchment, Leon Van Wyk, Gregory Paul Raper

Resource management technical reports

No abstract provided.

Tambellup-Borden Land Resources Survey, Angela Stuart-Street, Rohan Marold

Land resources series

No abstract provided.

Setting Targets For Resource Condition In Upper Crossman Catchment, Leon Vanwyk, Gregory Paul Raper

Resource management technical reports

No abstract provided.

Farming For The Future : Industry Practice Baselines, Danielle England, Susan Murphy-White, John Noonan, Marie Shanks, Jon Warren

Resource management technical reports

No abstract provided.

Soil Acidity : A Guide For Wa Farmers And Consultants, Chris Gazey, Stephen Davies

Bulletins 4000 -

Soil acidity: a guide for WA farmers and consultants provides all the necessary information for effective management and understanding of soil acidity in a user-friendly handbook including many examples, diagrams and photographs.

Landscapes And Soils Of The Merredin District, D N. Sawkins, Department Of Agriculture And Food

Bulletins 4000 -

The publication aims to provide readers with the principles underlying the formation of local landscapes and soils, and the ability to identify landscapes and their associated soils.

Report On Polyacrylamide, A Practice To Reduce Sediment And Insoluable Chemicals In Tailwater, Tara Slaven

Bulletins 4000 -

The main barrier to the adoption of PAM seems to the timing of the cost of outlay. This could add significantly to the initial crop establishment costs at a time of year when rowers receive no income. However, the partial and parametric analysis indicates that there re benefits from using PAM as part of the crop management cycle. These benefits are from ving water, retaining sediment on-farm and reducing the cost of delving drains. There are ther potential economic benefits including the retainment of phosphorus as a plant nutrient n-farm and subsequent yield increases.

Additionally, the off-site environmental impacts seem …

Annual Pastural Land Condition Report: 2007 / 2008 Financial Year, Department Of Agriculture And Food, Western Australia

Natural resources published reports

The Commissioner of Soil and Land Conservation is required under section 137 (2) of the Land Administration Act 1997 to provide the Pastoral Lands Board with a report on the current condition of land under pastoral leases in the State. This report presents information from the Department of Agriculture and Food’s pastoral lease inspection program for the 2007/2008 financial year.

Pastoral leases cover 36% (89 million hectares) of Western Australia and range from the tropical grasslands in the north through to the arid shrublands in the south, with rainfall ranging from 1,400 mm in the north Kimberley to less than …

Fisheries Research Report No. 182 - A Likelihood Analysis Of Non-Indigenous Marine Species Introduction To Fifteen Ports In Western Australia, Justin I. Mcdonald

Fisheries research reports

As an island continent, Australia is heavily dependent upon maritime transport with over 95% of its imports and exports transported by ship (Australian State of the Environment Committee, 2001). With about one third of Australia’s coastline, Western Australia ranks fourth of the six states and territory in the number of known non-indigenous marine species.

In this study fifteen ports in Western Australia were assessed on the potential for non-indigenous marine species to become introduced through ballast water and biofouling. The overall vesselmediated incursion risk to Western Australian ports was calculated by summing the relative incursion threat posed by visits to …

Fisheries Occasional Publication No.72 - Western Rock Lobster Ecological Effects Of Fishing Research Plan., Rhys Brown

Fisheries occasional publications

The commercial West Coast Rock Lobster Fishery (WCRLF) targets the western rock lobster (WRL), Panulirus cygnus, averaging approximately 10,000 tonnes of lobsters each year. Currently approximately 450 to 500 boats operate in the Fishery in waters ranging from 5 m to 200 m depth adjacent to the Western Australian coast and stretching from Cape Leeuwin in the south to Shark Bay in the north. The Fishery is managed by the Department of Fisheries (DoF) in Western Australia, using an input control system designed to constrain exploitation/fishing effort and deliver sustainable catches. The annual value of the catch is estimated at …

Fisheries Research Report No. 181 - Developing Long-Term Indicators For The Sub-Tidal Embayment Communities Of Cockburn Sound, Danielle Johnston, C. Wakefield, A Sampey, J Fromont, D C. Harris

Fisheries research reports

Swan Catchment Council Project – 01-0506 T 2006 – 2008 program

The geomorphology of Cockburn Sound is unique to the lower west coast of Australia due to the relative paucity of sheltered nearshore marine embayments along this coastline. Numerous studies on many of the commercially and/or recreationally important species that inhabit Cockburn Sound have demonstrated that for many of them this marine embayment constitutes an integral part of their life history. Since the commencement of industrial and urban development in the mid 1950s, in the waters and along the shores of Cockburn Sound, the marine fauna utilising this area have …

Finfish Aquaculture In Western Australia. Final Esd Risk Assessment Report For Sea-Cage And Land-Based Aquaculture., Department Of Fisheries Western Australia

Fisheries management papers

The Western Australian Department of Fisheries is responsible for the management of aquaculture in WA and is committed to implementing ESD. These principles are contained within the objectives of the Fish Resources Management Act 1994 and the Department is keen to demonstrate both to the Government and the broader community that these principles are being achieved. The Department developed a policy statement in 2002 - “Policy for the Implementation of Ecologically Sustainable Development for Fisheries and Aquaculture within Western Australia” (Fletcher 2002) – that described its direction on incorporating ESD within fisheries and aquaculture management.

Using the ESD Framework for …

Optlime, A Bioecenomic Model Of Soil Acidity Management In Agricultural Systems, Chris Gazey

All other publications

Optlime is a model that represents the essential biological, physical and economic factors related to soil acidity management in Western Australia. The model allows users to define site and soil characteristics for an acidic scenario and then simultaneously assess likely outcomes for 2 different lime sources and application strategies. With and without liming scenarios are examined over a 20 year simulation so as to capture the long-term impacts of soil acidity management. Output provided allows you to examine the likely effect of liming on pH, exchangeable aluminium, yields, and profits. An investment appraisal is provided to show you how liming …

Lime For High Rainfall Pastures: Above 800mm Average Annual Rainfall, Mike Bolland, Bill Russell

Bulletins 4000 -

Conventional agriculture acidifies soil. As your soil becomes more acid, productive pasture species disappear and are replaced by species of low agricultural value. It is a waste of money to apply expensive fertiliser to pastures which are inherently poorly productive because they are growing in an acid soil.

The paper examines the types of lime available, how to select lime for quality and when and how much lime to apply. Maganese toxity and aluminum toxicity are examine, how to test your soil, and affect of soil acidity on bacteria and other microorgansims.

Farm Gate Nutrient Balances In South West Western Australia – An Overview, Rebecca Ovens, David Weaver, Nardia Keipert, Simon Neville, Robert Summers, Martin Clarke

Conference papers and presentations

Farm-gate nutrient budgets can be used to identify the efficiency of nutrient use within and between individual enterprises and catchments, and may be used to represent a component of the risk that particular landuses represent to water quality. Over the past 5 years, more than 400 farm-gate nutrient balance audits have been conducted across a range of catchments and landuses in southwest Western Australia (WA). Values for nutrient use efficiency and surpluses across landuses and catchments are reported. Patterns of nitrogen and phosphorus signatures closely reflect one another across landuses, though nitrogen input, output and surplus values are consistently higher …

Sspnd –Support System For Phosphorus And Nitrogen Decisions – Modeling Of Management Practices Can Guide The Way Ahead, Simon Neville, David Weaver, Rebecca Ovens, Nardia Keipert, Robert Summers, Martin Clarke

Conference papers and presentations

Algal blooms in rivers and estuarine waters in south west Western Australia are a symptomatic response to excess nutrient input. Whilst a range of Best Management Practices (BMPs) are available to reduce the causes of phosphorus (P) and nitrogen (N) pollution, most investment has been directed towards symptoms. In order to treat nutrient pollution causes effectively, possible nutrient reductions and the likely adoption costs of a range of BMPs require evaluation. Catchment-scale evaluation of implementation scenarios offers insights not possible through long term on-ground implementation and performance monitoring, and assists community groups and government to respond to pollution issues through …

Fisheries Research Report No. 178 - Aquaculture Feed Grains Program, Brett Glencross

Fisheries research reports

Incorporating:

GRDC Project UWA00062: Development of value-added plant protein products for the aquaculture feeds sector

and

FRDC Project 2004-236: Aquaculture Nutrition Subprogram - Evaluation of Value-added Grain Protein Products for Atlantic Salmon and Black Tiger Prawns

Objectives

1. Development of value-added lupin protein product(s) for use in the animal feeds sector.

2. Evaluation of the nutritional value of a range of value-added lupin protein products when fed to fish.

3. Commercial transfer of intellectual property for development of new-product(s).

4. To determine the nutritional value of selected grain products developed as part of the linked CLIMA-GRDC project, when included in …

Fisheries Research Report No. 171 - Evaluation Of Exclusion Grids To Reduce The Bycatch Of Dolphins, Turtles, Sharks And Rays In The Pilbara Trawl Fishery, Peter Stephenson, S. Wells, J. A. King

Fisheries research reports

DBIF funded Project.

Considerable research on the documention of the bycatch of cetaceans, seals, turtles, and sea lions during trawl fishing operations has been undertaken worldwide. These include the Argentinean squid and hake trawl fisheries (Crespo et al., 1997; Fertl & Leatherwood, 1997), the Dutch pelagic trawl fishery (Couperus, 1997), the NE Atlantic pelagic trawl fishery (Tregenza & Collet, 1998) and the New Zealand squid fishery (Fishing News International, 2005).

In the Pilbara Fish Trawl Fishery, operating off the coast of Western Australia protected species including dolphins, turtles, sawfish, sea snakes as well as numerous sharks and ray species have …

Sheep Updates 2008 - Part 3, L. J. E. Karlsson, J. C. Greeff, L. Slocombe, K. Jones, N. Underwood, Fred Wilkinson, W. D. Hoffman, W. A. Mckiernan, V. H. Oddy, M. J. Mcphee, B. L. Mcintyre, P. F. Parnell, R. A. Clark, J. Timms, G. Griffith, C. Mulholland, P. Hyland, Danielle England, Fiona Jones, John Lucey, Martin Staines, Richard Morris, Megan Abrahams, Caroline Peek, Dennis Van Gool, Daniel Gardiner, Kari-Lee Falconer, Sandra Prosser, Mario D'Antuono, John Young, Andrew Thompson, Chris Oldham, Brown Besier, Angus Campbell, Ralph Behrendt

Sheep Updates

This session covers fiveteen papers from different authors:

CONTROLLING FLY STRIKE

1. Breeding for Blowfly Resistance - Indicatoe Traits, LJE Karlsson, JC Greeff, L Slocombe, Department of Agriculture & Food, Western Australia

2.A practical method to select for breech strike resistance in non-pedigreed Merino flocks, LJE Karlsson, JC Greeff, L Slocombe, K. Jones, N. Underwood, Department of Agriculture & Food, Western Australia

3. Twice a year shearing - no mulesing, Fred Wilkinson, Producer, Brookton WA

BEEF

4. Commercial testing of a new tool for prediction of fatness in beef cattle, WD Hoffman^A, WA McKiernan^A, VH Oddy …

Compost Production And Use In Horticulture, Bob Paulin, Peter O'Malley

Bulletins 4000 -

Maintaining and improving soil organic carbon levels is becoming an increasingly important aspect of modern farming. Compost provides potentially one of the most effective ways of applying organic matter to soils and improving organic carbon levels.

Improving soil organic carbon is directly related to soil quality and performance. Increased quality reflects improved biological function (soil health), fertility and physical attributes that include better drainage, reduced compaction and erosion, and improved moisture-holding capability, at least for lighter soils.

Compost is not the only option available. Others include the use of cover or break crops, reducing the use of cultivations, selecting safe …

Fisheries Research Report No. 177 - A 12-Month Survey Of Recreational Boat-Based Fishing Between Augusta And Kalbarri On The West Coast Of Western Australia During 2005-06, N. R. Sumner, P C. Williamson, Stuart J. Blight, Daniel J. Gaughan

Fisheries research reports

A 12-month survey of boat-based recreational fishing in the West Coast Bioregion (Augusta to Kalbarri) of Western Australia was conducted at boat ramps between 1st July 2005 and 30th June 2006. During the survey a total of 15,999 boat crews were interviewed, of which 13,185 (82%) had been undertaking some form of fishing activity and, of these, 10,382 (or 79%) of fishing boat crews had been ocean line fishing. The total annual recreational boat based fishing effort for the West Coast Bioregion was estimated to be 1,557,000 fisher hours (95%CI: 1,495,000 – 1,620,000), which is a 15.5% increase in nominal …

A Strategy For Managing The Recreational Catch Of Demersal Scalefish In The West Coast Bioregion. Decisions By The Minister For Fisheries, Jon Ford (Minister For Fisheries; The Kimberley, Pilbara And Gascoyne)

Fisheries management papers

The following recreational fisheries management package is a result of an extensive public consultation process. The package has been carefully developed to deliver the required reduction in catches. It is important to understand that each management measure contributes to the reduction in catches necessary to give these stocks a chance to rebuild and that no measure on its own will deliver the required reduction in catch.

To ensure the ongoing recovery of stocks, an adaptive approach to management has been adopted. This approach will involve an ongoing review of the effectiveness of these management arrangements, and take into account the …

Fisheries Research Report No. 175 - An Assessment Of The Finfish Catch By Recreational Fishers, Tour Operators, Commercial Lobster Fishers And Commercial Wetline Fishers From The Houtman Abrolhos Islands During 2006, Neil R. Sumner

Fisheries research reports

The catch of finfish from the Houtman Abrolhos Islands was estimated for recreational boats, tour operators, commercial rock lobster fishers and occupants of their camps on the islands. Separate methods were used for each of the different sectors due to the variation in fishing activities. Recreational boats and commercial rock lobster fishers were surveyed to determine catches, whereas the catches by tour operator and commercial wet-line fishers were determined from their compulsory catch and effort returns submitted to the Department of Fisheries.

The reported commercial wetline catch for pink snapper, sweetlip emperor and Western Australian dhufish greatly exceeded the combined …

Fisheries Research Report No. 176 - Regrowth Of Pilchard (Sardinops Sagax) Stocks Off Southern Wa Following The Mass Mortality Event Of 1998/99, Daniel J. Gaughan, M Craine, Peter Stephenson, Timothy I. Leary, Paul Lewis

Fisheries research reports

Final FRDC Report – Project 2000/135

This project produced time series of estimates of spawning biomass for pilchards in four purse seine management zones in Western Australia, three on the south coast and one on the west coast. The pilchard stocks in Western Australia have recovered strongly since the 1998/99 mass mortality.

This project has shown that the fishery independent and fishery dependent methods applied to Western Australia’s pilchard fisheries cannot provide precise estimates of the size of the pilchard spawning biomass in each management region. Although the trends indicated by the age-structured simulation model are reliable and provide good …

Western Australian Rangeland Monitoring System For Grasslands: Field Manual, Andrew Craig, Philip Thomas

Bulletins 4000 -

Western Australian Rangeland Monitoring System (WARMS) sites are designed to provide defined areas for repeated photography and collection of vegetation composition, shrub/tree cover and landscape function (soil surface assessment) data. This manual defines the procedures for installing and monitoring WARMS sites in the grasslands of northern Western Australia. It provides a documented reference of site stratification at regional scale, and site allocation at station (property) scale. Different procedures apply for sites in the shrublands of the southern pastoral zone. WARMS is designed to be interpreted at the vegetation type or regional scale, rather than lease (station) scale. Information gathered is …

A Comparison Of Agricultural And Urban Influences On Water Quality In South West Wa, Nardia Keipert, David Weaver, Robert Summers, Christian Zammit, Artemis Kitsios, Simon Neville, Martin Clarke

Conference papers and presentations

In Western Australia, a number of coastal rivers and estuaries have suffered from eutrophication since the 1960’s. Often the focus of the threat to water quality in these areas has been agriculture because of its extensive nature and widespread use of highly soluble fertilisers. Over recent years a focus on nutrient inputs, outputs and nutrient balance in a number of projects provides an opportunity to compare the relative nutrient threats from the agricultural and urban sectors, placed in the context of increasing urbanisation and development. These disparate data sets also allow a comparison of nutrient inputs in each sector in …

Fisheries Research Report No. 170 - Biomass And Commercial Catch Estimates For Abalone Stocks In Areas Proposed As Sanctuary Zones For The Capes Marine Park, A. Hesp, Neil R. Loneragan, Norman G. Hall, H T. Kobryn, A.M. Hart, Frank Fabris, Jeremy Prince

Fisheries research reports

This study was undertaken to estimate the biomasses, biologically sustainable catches and current average annual commercial catches of three fished species of abalone, Haliotis roei (Roei), Haliotis laevigata (Greenlip) and Haliotis conicopora (Brownlip) in the proposed sanctuaries of the Capes Marine Park, south-western Australia. The current annual, catch estimates represent the catches that would be foregone by commercial fishers if the sanctuaries are implemented and will be used to evaluate the potential compensation to fishers (not part of this study). The biomass and catch estimates for each species in the proposed sanctuaries were estimated from a combination of scientific survey …

A Strategy For Managing The Recreational Catch Of Demersal Scalefish In The West Coast Bioregion., Department Of Fisheries Western Australia

Fisheries management papers

The recreational management proposals that follow have been developed to deliver the required reduction in catches, while still allowing an enjoyable fishing experience for the majority of West Australians. If only a single management tool was used (e.g. a boat limit or closed season) the impact on recreational fishing would be huge. Therefore, the proposed management package has been carefully developed so that each management measure adds to the reduction required, while minimising the social and economic impacts as much as possible.