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Fisheries Research Report No. 174 - Spatial Scales Of Exploitation Among Populatons Of Demersal Scalefish : Implications For Management. Part 2: Stock Structure And Biology Of Two Indicator Species, West Australian Dhufish (Glaucosoma Hebraicum) And Pink Snapper (Pagrus Auratus) In The West Coast Bioregion, Department Of Fisheries, Western Australia

Fisheries research reports

Final FRDC Report - Project 2003/052

EDITORS: R. Lenanton, J. StJohn, I. Keay, C. Wakefield, G. Jackson, B. Wise and D. Gaughan

West Australian dhufish is endemic to shelf waters of south-western Western Australia (WA). In contrast, snapper (known as “pink snapper” in WA) has a continuous distribution around the southern coastline of mainland Australia and in New Zealand. Dhufish and snapper are the two most important exploited demersal scalefish species in the West Coast Bioregion (WCB) of WA, which extends from Kalbarri (27°S) to Augusta (35°S). This study examined regional variation in the biology of the two species, their …

Fisheries Research Report No.157 - The Western Rock Lobster Fishery 2003/2004 And 2004/2005, Simon De Lestang, E H. Barker

Fisheries research reports

The 2003/2004 season produced the second highest catch recorded to date (13,684 tonnes), up markedly on the previous season’s catch of 11,415 t. Nominal effort in 2003/2004 (10,180,444 pot lifts) did not vary by nearly as much as did the catch, with total pot lifts declining only slightly (<1%) on the previous season. Season 2004/2005 produced a catch of 12, 236 tonnes, down on the previous season’s catch of 13,684 t. Similar to the catch, total nominal effort in 2004/2005 (9,789,671 pot lifts) also declined fairly substantially (4%) on the previous season. Recreational catches for the above two seasons were also down on their respective previous seasons by 52 and 11% each.

Puerulus settlement coast wide during 2003/2004 was below average, especially towards the southern and northern extremes of the fishery (Port Gregory and Jurien Bay south). This was also the case during the following season (2004/2005), although the poor settlement was more evenly spread across the entire fishery. Catch predictions from these …

Fisheries Research Report No. 193 - Investigating Reproductive Biology Issues Relevant To Managing The Western Rock Lobster Broodstock, Roy Melville-Smith, Simon De Lestang, N Beale, D Groth, A Thompson

Fisheries research reports

Final FRDC Report – Project 2003/005

Objectives:

1. To investigate the implications of the setose and maximum size rules.

2. To undertake preliminary investigations into the implications of egg diameters being significantly smaller at the Abrolhos Islands than at the coast.

3. To quantify the extent of the breeding grounds, so as to weight the overall egg production index for the stock by the contribution of the management zones.

Increases in efficiency due to modern electronic equipment, improved fishing vessels and knowledge about the grounds and lobster behaviour, have all led to western rock lobster fishers becoming more efficient at …

Fisheries Research Report No. 191 - Maximising Survival Of Released Undersize West Coast Reef Fish, Rodney C J Lenanton, Jill St John, Brent S. Wise, Ian S. Keay, D J. Gaughan

Fisheries research reports

Final FRDC Report – Project 2000/194

In Australia, most fishery managers regulate the catch of recreational fishes using size and bag limits. The effectiveness of these regulations depends on the fish surviving capture and then release back into the water. Effective management of fishing using size or bag limits therefore requires an understanding of the rates of mortality of released fish and what factors are causing mortality so that these might be alleviated. The rates and likely causes of mortality of released WA dhufish (Glaucosoma hebraicum) and snapper (Pagrus auratus), breaksea cod (Epinephelides armatus) and baldchin groper (Choerodon rubescens) off …

Fisheries Research Report No. 192 - Determination Of A Cost Effective Methodology For Ongoing Age Monitoring Needed For The Management Of Scalefish Fisheries In Western Australia, Montgomery Craine, Ben Rome, Peter Stephenson, Brent S. Wise, D J. Gaughan, R Lenanton, Richard A. Steckis

Fisheries research reports

Final FRDC Report – Project 2004/042

Objectives

1. Determine for the 20 major WA scalefish species (4 - 5 in each bioregion) the relative accuracy of structures used to estimate age (e.g. Sectioned/whole otoliths, lengths, otolith weight, other otolith dimensions or some combination of these).

2. For each stock, examine the relative impact on the calculated age-compositions and their effect on model outputs and conclusions from varying (i) the method of ageing used (only where this is possible from available data) (ii) the number of individuals used in the samples (iii) the spatial distribution of the samples used (iv) if …

Fisheries Research Report No. 184 - Macroscopic And Microscopic Description Of Snapper (Pagrus Auratus) Gonads From Shark Bay, Western Australia, Michael C. Mackie, Gary Jackson, Nadia E. Tapp, Jeffrey V. Norriss, Adrian Thomson

Fisheries research reports

Since 1997, research on snapper (Pagrus auratus, Sparidae) in the inner gulfs of Shark Bay has focussed on providing biological information required for the management of the regionally important recreational fishery. A major component of this research has been a comprehensive investigation of snapper reproductive biology to determine size and age at maturity, the timing of the spawning season and to estimate batch fecundity. This research has necessitated a review of the macroscopic staging system used for P. auratus in Western Australian waters and the development of a more detailed microscopic system to allow accurate analyses of histological material. Based …

Integrated Fisheries Management. Allocation Report Roe's Abalone Resource Perth Metropolitan Region., Integrated Fisheries Allocation Advisory Committee

Fisheries management papers

The introduction of Integrated Fisheries Management (IFM) is a recent development in the management of fisheries in Western Australia. IFM is an initiative aimed at addressing the issue of how fish resources in Western Australia can be best shared between competing users within the broad context of “Ecologically Sustainable Development”, or ESD.

Fisheries Research Report No. 189 - Results Of A 2007 Survey Of The Swan River Region For Four Introduced Marine Species, Justin I. Mcdonald, Fred E. Wells

Fisheries research reports

A survey of the Swan River region for four non-indigenous marine species was conducted in 2007: the European shore crab Carcinus maenas, the Asian bag mussel Musculista senhousia, the European fan worm Sabella spallanzanii, and the scallop Scaeochlamys livida. The first three of these species are global in their distribution and on the ‘top-ten world’s worst invaders listing; the last species is introduced from the eastern states of Australia.

In this survey divers on SCUBA examined 43 sites for each of the listed species. Despite previous records of Carcinus maenas and Musculista senhousia in this region …

Crop Updates - 2009 Katanning, Murray Scholz, Peter Newman, Glenn Adam, Trevor Bell, Michael Whitehead, W. K. Anderson, C. Gazey, J. Andrew, R. Pearce, Bill Bowden, Wayne Pluske, Jeremy Lemon, D. C. Edmeades, J. J. Russell, B. H. Paynter, David Ferris, Abul Hashem, Catherine Borger, Stephen B. Powels, Qin Yu, Mechelle Owen, Roberto Busi, Sudheesh Manalil, Sally Peltzer, David Minkey, Raj Malik

Crop Updates

This session covers seventeen papers from different authors

1. GM canola – How will it affect the way I farm? Murray Scholz, 2008 Nuffield scholar, Southern NSW

2. Eight years of IWM smashes tyegrass seed banks by 98% over 31 focus paddocks, Peter Newman, Glenn Adam & Trevor Bell, Department of Agriculture and Food

3. The global economic climate and impacts on agriculture, profile on Michael Whitehead Rabobank New York

4. Lessons from five years of cropping systems research, W.K. Anderson, Department of Agriculture and Food

5. Case study of a 17year old agricultural lime trial, C. Gazey, Department of Agriculture …

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Fisheries Research Report No. 190 - Esd Reporting And Assessment Subprogram: Strategic Planning, Project Management And Adoption - Stage 2, R Fletcher

Fisheries research reports

Final FRDC Report – Project Number 2004/006

The second stage of the operation of the ESD Subprogram was successful, but compared to the focus during the first subprogram period, mostly in a consolidation manner rather than from the generation of significant new tools. This was necessary because it takes time to adopt and integrate significant changes to the methods of operation of agencies and industries. The policies must be there before any real activity can occur and we found that for the broader focused, cross fishery/cross sector applications of the framework, agencies were not in a position for much of …

Fisheries Research Report No. 187 - Management And Monitoring Of Fish Spawning Aggregations Within The West Coast Bioregion Of Western Australia, Michael C. Mackie

Fisheries research reports

Final FRDC Report – Project Number 2004/051

Objectives

1. To identify species that aggregate to spawn within the WCB and to describe (e.g. location, size, timing, nature) the aggregations of key demersal species such as pink snapper and dhufish.

2. To investigate the biology, ecology and fishery for Samson fish with emphasis on the sports fishery targeting deep water spawning aggregations west of Rottnest Island.

3. To establish methods and protocols for monitoring fish aggregations within the WCB.

4. To review relevant information and provide advice on the impact of aggregation fishing and the management of aggregating fish species in …

Crop Updates 2009 - Farming Systems, Derk Bakker, Grey Poulish, Steve Lacy, Svetlana Micic, Peter Mangano, Tony Dore, Alan Lord, Vivien Vanstone, Helen Hunter, Sean Kelly, W. K. Anderson, Gary Lang, David Mccarthy, Ruhi Ferdowsian, Ian Rose, Andrew Van Burgel, David Ferris, Rob Grima, Natalie Hogg, John Davis, Jarrad Martin, Pippa Michael, Robert Belford, Kawsar P. Salam, Roy Murray-Prior, David Bowran, Moin U. Salam, Tim Scanlon, Len Wade, Megan Ryan, Megan Abrahams, Chad Reynolds, Caroline Peek, Dennis Van Gool, Kari-Lee Falconer, Daniel Gardiner, Geoff Anderson, Siva Sivapalan, Tim Mcclelland, James Hunt, Zvi Hochman, Bill Long, Dean Holzworth, Anthony Whitbread, Stephen Van Rees, Peter Devoil, Yvette Oliver, Michael Robertson, Peter Stone

Crop Updates

This session covers nineteen papers from different authors:

Decision support technology

1. The use of high resolution imagery in broad acre cropping, Derk Bakker and Grey Poulish, Department of Agriculture and Food

2. Spraywise decisions – online spray applicatiors planning tool, Steve Lacy, Nufarm Australia Ltd

3. Testing for redlegged earthmite resistance in Western Australia, Svetlana Micic, Peter Mangano, Tony Dore and Alan Lord, Department of Agriculture and Food

4. Screening cereal, canola and pasture cultivars for Root Lesion Nematode (Pratylenchus neglectus), Vivien Vanstone, Helen Hunter and Sean Kelly,Department of Agriculture and Food

Farming Systems Research

5. …

Crop Updates 2009 - Genetically Modified Crops, Nutrition, Soils, & Others, Wallace Cowling, Art Diggle, Caroline Peek, Frank D'Emden, Fiona Evans, Bob French, Rob Grima, Sam Harburg, Abul Hashem, John Holmes, Jeromy Lemon, Peter Newman, Janet Paterson, Steve Penny, Peter Portman, Mark Slatter, Angus Maclennan, Andrew Wells, Bill Bowden, Wayne Pluske, Wen Chen, Geoff Anderson, Ross Brennan, Richard Bell, Hannah Rigby, Deborah Pritchard, David Collins, Katrina Walton, David Allen, Nancy Penney, Michael Robertson, Roger Lawes, Stephen Davies, Chris Gazey, Breanne Best, David Gartner, Quenten Knight, Joel Andrew, Ryan Pearce, F. C. Hoyle, A. Bennett, Rick Llewellyn, Ken Flower, Julian Krieg, Owen Catto, Cindy Parsons

Crop Updates

This session covers fifteen papers from different authors:

1. Performance of Canola Breeders Roundup Ready^® canola hybrid CHYB-166 in 2008, Wallace Cowling, Canola Breeders Western Australia Pty Ltd

2. The implications of GM glyphosate resistant lupin, Art Diggle, Caroline Peek, Frank D’Emden, Fiona Evans, Bob French, Rob Grima, Sam Harburg, Abul Hashem,, John Holmes, Jeremy Lemon, Peter Newman, Janet Paterson, Steve Penny,Department of Agriculture and Food, Peter Portmann, Agriconnect

3. Nufarm Roundup Ready® Canola Systems Trials— 2008 Mark Slatter, Research and Development …

Fisheries Research Report No. 185 - Performance Indicators, Biological Reference Points And Decision Rules For Western Australian Abalone Fisheries (Haliotis Sp.): (1) Standardised Catch Per Unit Effort, Anthony M. Hart, Frank Fabris, Nick Caputi

Fisheries research reports

This report summarises the performance indicators (PIs) and biological reference points (BRPs) developed from standardised catch per unit effort (SCPUE) models of the Western Australian abalone fisheries. It also outlines analysis and consultation processes used to construct these indicators. Other PIs, such as those relating to harvest rate and recruitment, will be developed when more fishery independent data becomes available.

A comprehensive 7-step process was utilised to develop PIs.

1) The Abalone Management and Advisory Committee (AbMac) considered options and advised that in the short-term, catch and effort trends be reviewed with other potential indicators to be considered at a …

Fisheries Research Report No. 183 - Development Of A Long-Term Program To Monitor Coastal Communities Within The Swan Region, Lynda M. Bellchambers

Fisheries research reports

Marine benthic communities along the metropolitan coast of Western Australia are varied and unique. The southward flowing Leeuwin Current brings warm water and tropical recruits whilst the cooler counter current, the Capes Current, brings the temperate recruits. The result is a mosaic of tropical species intermingled with the dominant temperate species. These areas sustain varied fish and invertebrate communities making this coast a highly desirable location for recreational and commercial use. Management strategies are in place that attempt to maintain the sustainability of this area including various fishery restrictions and the implementation of areas zoned as sanctuary zones (no-take). However, …

Fisheries Research Report No. 188 - Results Of The 2007 Survey Of The Albany Marine Area For Introduced Marine Species, Justin I. Mcdonald, Fred E. Wells, Michael J. Travers

Fisheries research reports

A survey of the Albany marine area (King George Sound, Princess Royal Harbour and Oyster Harbour) for introduced marine pest species was conducted in 2007. This survey was trialling the new system of monitoring for introduced marine pests developed by the National Introduced Marine Pests Coordination Group (NIMPCG). This study represents one of the first trials of this system (the first trial commenced in South Australia is still ongoing). In this survey fifty-two of the fifty-five potential pest species were targeted. Three species were excluded on the basis of salinity and/or temperature tolerances being exceeded. A wide variety of sampling …

Soil Ph In Northern And Southern Areas Of The Wa Wheatbelt, Chris Gazey, Joel Andrew

Bulletins 4000 -

More than 80% of the topsoils sampled fall below the critical surface pHCaCl2 of 5.5 in the northern and southern wheatbelt study areas, with more in the south than the north. These results confirm soil acidity is a serious concern throughout the WA wheatbelt when considered in conjunction with the more intensive analysis of current soil pH throughout the Avon River Basin (2005–2008).

With low topsoil pH, it is likely that subsurface acidity is also a problem. For soil acidity to be managed, subsurface pH also needs to be known. In the Avon River Basin study, about half of the …

Survey Of Western Australian Agricultural Lime Sources, Chris Gazey, Dave Gartner

Bulletins 4000 -

As a service to WA wheatbelt farmers, to assist with cost effective management of soil acidity, a survey of agricultural lime availability and quality was conducted by the Department of Agriculture and Food, Western Australia.

The quality of agricultural lime surveyed varied widely between pits. High quality lime is available from limes and, limestone and dolomite sources. Twice as much of the lowest neutralising value lime surveyed would need to be applied compared to the highest to achieve the same increase in soil pH. Limes also varied in the distribution of particle sizes. Selecting limes with a high proportion of …

Prawn Aquaculture In Western Australia. Final Esd Risk Assessment Report For Prawn 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 to the Department on incorporating ESD within fisheries and aquaculture management.

Using the …

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

Resource management technical reports

No abstract provided.

Barriers And Drivers Influencing Adoption Of Perennial Pastures On The South Coast Of Wa, Jamie Bowyer, Rebecca Heath

Resource management technical reports

No abstract provided.

Surface Water Management In The East Yornaning Catchment, Tilwin Westrup

Resource management technical reports

No abstract provided.

Benchmarking Biodiversity: Land Resource Mapping In The Ord River Catchment., Tricia Handasyde, Peter J. Tille, Noel R. Schoknecht, Karen Carnes

All other publications

This 2009 report describes the mapping of landform, vegetation and soils undertaken in the Ord River Catchment in the East Kimberley of Western Australia in order to provide a basis for biodiversity benchmarking. The project: • brought together and standardised existing Ord River catchment land resource mapping held by the Department of Agriculture and Food (DAFWA) and Department of Environment and Conservation (DEC) in a format compatible with adjoining mapping in the Northern Territory • mapped to land unit level an additional 4400 sq km of the Ord River catchment. • re-digitised 2200 sq km of vegetation mapping previously not …

An Inventory And Condition Survey Of The Lower Murchison River Area, Western Australia, P Hennig

Technical Bulletins

The inventory and condition survey of the lower Murchison River area, undertaken by the Department of Agriculture and Food, Western Australia (DAFWA) between 2002 and 2003, describes and maps the natural resources of the region’s pastoral leasehold land. This survey report provides a baseline record of the existence and condition of the natural area’s resources, to assist with the planning and implementation of land management practices. The report identified and described the condition of soils, landforms, vegetation, habitat, ecosystems, and declared plants and animals. It also assessed the impact of pastoralism and made land management recommendations. This survey report presents …

Wilson Inlet Catchment Appraisal 2007, Ron Master

Resource management technical reports

No abstract provided.

The Initial Hydrological Effect Of Deep Drains At Wallatin Creek : (2006-2008), Richard J. George Dr, Grant Stainer

Resource management technical reports

No abstract provided.

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

Resource management technical reports

No abstract provided.

Marchagee Oil Mallee Study : Drill Completion And Preliminary Hydrogeological Report, D L. Bennett, Adrian Goodreid

Resource management technical reports

No abstract provided.

Surface Water Management In The Daping Creek Catchment, Tilwin Westrup

Resource management technical reports

No abstract provided.

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

Resource management technical reports

No abstract provided.