1,308 results

Development of a Torres Strait Islander and Aboriginal Traditional Inhabitant Commercial Finfish Fishery Action Plan for the Torres Strait Finfish Fishery and supporting Communications Plan

Project number: 2014-240
Project Status:
Completed
Budget expenditure: $127,500.00
Principal Investigator: Andy Bodsworth
Organisation: Cobalt MRM Pty Ltd
Project start/end date: 27 Nov 2014 - 14 May 2015
Contact:
FRDC

Need

The project has been commissioned by TSRA to enable development of the Finfish Fishery as envisaged by TSRA and governments following the move to 100% traditional ownership of the fishery. It reflects the need to develop and implement practical and culturally appropriate business development and fisheries management strategies that can ultimately enable the fishery to operate as one of several sustainable, profitable, professional and highly valued Torres Strait Fisheries under traditional ownership.
The need for the project recognises that the capabilities, and aspirations of Traditional Owners are likely to evolve over time as the fishery and supporting capabilities develop.
The fishery has previously generated substantially more revenue than it is currently generating and catches have declined significantly since the buyout and transfer of ownership to Traditional Owners. With a staged approach, based on a strong understanding of impediments to greater TO participation, and a logical pathway to build capabilities, supporting infrastructure and markets the fishery is well placed to contribute substantially to participants, Island communities and the region more broadly.

Objectives

1. Increasing Traditional Owner participation in the Torres Strait Finfish Fishery
2. Increasing Torres Strait Islander and Indigenous employment in fishing and related industries by advancing successful commercial activities in the finfish fishery, including post-harvest matters such as potential markets and marketing strategies.
3. Safeguarding the sustainability of the finfish fishery as traditional ownership and participation in the fishery develops.
Environment
PROJECT NUMBER • 2003-066
PROJECT STATUS:
COMPLETED

Comparing conventional ‘social-based’, and alternative output-based, management models for recreational finfish fisheries using Shark Bay pink snapper as a case study

This study has provided for the first time in Australia, an empirical comparison of different management models with a recreational marine finfish fishery. A TAC-based system was introduced for pink snapper in the inner gulfs of Shark Bay for the first time in 2003-2005, to explicitly manage...
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA
SPECIES

Determination of cost effective techniques to monitor recreational catch and effort in Western Australian demersal finfish fisheries

Project number: 2005-034
Project Status:
Completed
Budget expenditure: $277,720.00
Principal Investigator: Warrick J. Fletcher
Organisation: Department of Primary Industries and Regional Development (DPIRD) WA
Project start/end date: 29 Apr 2005 - 6 Mar 2014
Contact:
FRDC

Need

The need for regular monitoring of recreational fishing activity in WA will increase substantially over the coming years. This increase will result from the overarching requirement for better data to enable the management of those fish stocks where recreational fishing takes a major component of the catch. In addition, these data will also be needed as inputs to the process of determining explicit sectoral allocations (e.g. between recreational, commercial, indigenous)through the Integrated Fisheries Management (IFM) processes which have recently been initiated (see DOF, 2003 for details). Moreover, some level of monitoring will be needed to determine if the outcomes of management arrangements do result in the catch of each sector (including the recreational sector) meeting these allocation decisions. One of the first fisheries to be put through this IFM process will be the west coast demersal (offshore) finfish fishery.

The traditional methods for estimating recreational catch and effort have been either creel-based or diary based surveys. Both of these methods can have a relatively high cost with each generating estimates that are subject to a number of different biases. Given that allocations decisions for these fisheries will be based on the estimates generated from surveys, all stakeholder groups are demanding that there is some assessment of the accuracy of any estimates produced. Such analyses are best completed by the simultaneous collection of data by alternative methods to allow suitable comparisons to be made of any differences in the estimates.

Furthermore, whilst there is little doubt that one or other of these intensive survey methods will need to be completed at periodic (eg 3 to 5 year) intervals, having information at a lower precision level between these intervals (i.e. annually) to provide an indication of whether recreational catches are remaining steady, increasing or declining within anticipated boundaries of any allocation will be of great benefit (possibly essential) to the effective management of the IFM outcomes.

Given that the IFM management of these offshore (boat-based) demersal fisheries is likely to be focused on only a relatively small number of indicator species, rather than trying to manage every species directly, ongoing indicator surveys may be able to use different sampling strategies to those used in the standard surveys. In addition, alternative methods of data collection are now more available. These include the use of remote monitoring technology (e.g. cameras), using information already collected by other agencies (boat ramp usage rates) and the potential to use data collected by the Department’s compliance staff in a more directed fashion.

Understanding the relative precision and accuracy of each of the various standard and innovative approaches along with their relative costs, benefits, limitations and interactions will be essential for determining what ongoing sampling methods need to be used to monitor the IFM outcomes for this fishery. If successful, these same techniques will be used to assist determine the appropriate sampling scheme for other fisheries requiring the ongoing collection of recreational data.

DoF (2003) Report to the Minister for Agriculture, Forestry and Fisheries by the Integrated Fisheries Management Review Committee - Fisheries Management Paper No. 165

Objectives

1. Complete a series of concurrent catch and effort surveys of the West Coast Demersal Recreational Fishery using a variety of survey techniques.
2. Compare the precision and accuracy of estimates generated using these various techniques
3. Using cost benefit analysis, produce a series of options to monitor annual catch and effort for a range of precision levels and indicator species

Final report

ISBN: 978-1-921845-64-2
Author: Rick Fletcher
Industry
PROJECT NUMBER • 2019-086
PROJECT STATUS:
COMPLETED

Development of a national sector-specific biosecurity plan guideline and template for the farmed freshwater native finfish industry of Australia

These guidelines were developed as part of Fisheries Research and Development Corporation (FRDC) project number 2019-086: Development of a national sector-specific biosecurity plan guideline and template for the farmed freshwater native finfish industry of Australia and in accordance with: •...
ORGANISATION:
Freshwater Native Fish Association (FNFA)

New technologies for sustainable commercial finfish culture

Project number: 2005-213
Project Status:
Completed
Budget expenditure: $660,146.00
Principal Investigator: Gavin J. Partridge
Organisation: Department of Primary Industries and Regional Development (DPIRD) Fremantle
Project start/end date: 28 Jun 2005 - 29 Sep 2008
Contact:
FRDC

Need

A viable inland saline aquaculture industry will only develop if existing constraints to production are overcome and if the environmental impacts from effluent, which are an inevitable consequence of increasing production, are managed appropriately. The innovative SIFTS technology offers an order of magnitude improvement in fish production by its ability to grow high densities of fish at low cost, by efficiently preventing solid waste products from entering the natural environment, and by maintaining optimal oxygen levels and therefore fish growth even during algal blooms. Linking SIFTS to the irrigation of crop plants provides a cost-effective option for managing effluent and the potential for additional returns. These systems work in the laboratory, but it is essential that they be rigorously tested on a commercial scale in the field. The proving of the SIFTS technology in the small water bodies of the WA Wheatbelt will make the technology immediately available to other environments such as in freshwater lakes, storage reservoirs and in coastal areas where its superior production and waste minimization capabilities will be highly regarded both by industry and the community. For inland saline areas, the innovative SIFTS technology offers to transform the existing low-intensity, cottage industry into a commercial industry.

The need for this research is reflected in both FRDC’s National R&D plan for Inland Saline Aquaculture and the RIRDC R&D plan for Integrated Agri-Aquaculture Systems (IAAS). Specifically, the former R&D plan calls for the ‘identification of constraints to commercial developments and methods of overcoming these’, whereas the latter highlights the need for ‘appropriate, in-situ industry trials to evaluate suitable system design requirements from IAAS operations’.

Objectives

1. Quantify the production capability of a commercial scale Semi-Intensive Floating Tank System (SIFTS).
2. Determine the effectiveness of the SIFTS waste removal system and in-pond bioremediation in preventing boom-bust microalgal cycles.
3. Determine the efficiency of irrigated crop plants in removing nutrients, salt and other pollutants from SIFTS aquaculture effluent.

Final report

ISBN: 978-0-9750577-2-8
Author: Gavin Partridge
Final Report • 2009-05-08
2005-213-DLD.pdf

Summary

We have demonstrated that yields of 10 tonnes of fish per hectare cannot be sustainably achieved in static, autotrophic saline (14 ppt) ponds (i.e. ponds dominated by photosynthetic organisms) over a 3-4 month production cycle, despite the removal of settable wastes from the SIFTS. The outcome of this finding was to advise potential industry entrants of this fact and to further investigate alternative options to enable such yields to be achieved.

Our work on integrating heterotrophic pond management techniques (i.e. ponds dominated by bacterial organisms which utilize organic carbon as an energy source) with carnivorous fish production in SIFTS have demonstrated that 15 tonnes per hectare are achievable over a 100 day production cycle. Economic analysis revealed that the profitability of a stand-alone enterprise growing carnivorous fish in SIFTS within heterotrophic ponds would be marginal at 150 tonnes per year of production. The outcomes of these trials have already been used to design further trials on optimizing heterotrophic pond management at the Queensland Department of Primary Industries’ Bribie Island Aquaculture Research Centre. Demonstrating that SIFTS can be integrated with heterotrophic pond management systems creates an opportunity for existing prawn farms using heterotrophic pond management to integrate barramundi farming into their existing operations with minimal changes required to their operations. The McRobert Aquaculture Group are discussing the integration of SIFTS into prawn farming ponds and settlement raceways with the prawn farming industry in Queensland.

The main outcome of our research using NyPa Forage to treat salinised and eutrophied waste is a further project funded by the RIRDC, in which NyPa Forage will be grown on a larger scale in the field and it’s nutritive value determined in livestock in vivo. As a result of our project, NyPa forage is being investigated to fix atmospheric carbon under a carbon credit scheme. The ‘Degree Celsius’ project is a collaboration between Terrain Natural Resource Management and BioCarbon, a private company, who are investigating the carbon storage capability of NyPa Forage in an effort to make valuable use of salt affected lands. 

Keywords: Inland saline aquaculture, Semi Intensive Floating Tank System, SIFTS, barramundi, rainbow trout, heterotrophic pond management, halophytes, NyPa, Artemia

Final Report • 2009-05-08
2005-213-DLD.pdf

Summary

We have demonstrated that yields of 10 tonnes of fish per hectare cannot be sustainably achieved in static, autotrophic saline (14 ppt) ponds (i.e. ponds dominated by photosynthetic organisms) over a 3-4 month production cycle, despite the removal of settable wastes from the SIFTS. The outcome of this finding was to advise potential industry entrants of this fact and to further investigate alternative options to enable such yields to be achieved.

Our work on integrating heterotrophic pond management techniques (i.e. ponds dominated by bacterial organisms which utilize organic carbon as an energy source) with carnivorous fish production in SIFTS have demonstrated that 15 tonnes per hectare are achievable over a 100 day production cycle. Economic analysis revealed that the profitability of a stand-alone enterprise growing carnivorous fish in SIFTS within heterotrophic ponds would be marginal at 150 tonnes per year of production. The outcomes of these trials have already been used to design further trials on optimizing heterotrophic pond management at the Queensland Department of Primary Industries’ Bribie Island Aquaculture Research Centre. Demonstrating that SIFTS can be integrated with heterotrophic pond management systems creates an opportunity for existing prawn farms using heterotrophic pond management to integrate barramundi farming into their existing operations with minimal changes required to their operations. The McRobert Aquaculture Group are discussing the integration of SIFTS into prawn farming ponds and settlement raceways with the prawn farming industry in Queensland.

The main outcome of our research using NyPa Forage to treat salinised and eutrophied waste is a further project funded by the RIRDC, in which NyPa Forage will be grown on a larger scale in the field and it’s nutritive value determined in livestock in vivo. As a result of our project, NyPa forage is being investigated to fix atmospheric carbon under a carbon credit scheme. The ‘Degree Celsius’ project is a collaboration between Terrain Natural Resource Management and BioCarbon, a private company, who are investigating the carbon storage capability of NyPa Forage in an effort to make valuable use of salt affected lands. 

Keywords: Inland saline aquaculture, Semi Intensive Floating Tank System, SIFTS, barramundi, rainbow trout, heterotrophic pond management, halophytes, NyPa, Artemia

Final Report • 2009-05-08
2005-213-DLD.pdf

Summary

We have demonstrated that yields of 10 tonnes of fish per hectare cannot be sustainably achieved in static, autotrophic saline (14 ppt) ponds (i.e. ponds dominated by photosynthetic organisms) over a 3-4 month production cycle, despite the removal of settable wastes from the SIFTS. The outcome of this finding was to advise potential industry entrants of this fact and to further investigate alternative options to enable such yields to be achieved.

Our work on integrating heterotrophic pond management techniques (i.e. ponds dominated by bacterial organisms which utilize organic carbon as an energy source) with carnivorous fish production in SIFTS have demonstrated that 15 tonnes per hectare are achievable over a 100 day production cycle. Economic analysis revealed that the profitability of a stand-alone enterprise growing carnivorous fish in SIFTS within heterotrophic ponds would be marginal at 150 tonnes per year of production. The outcomes of these trials have already been used to design further trials on optimizing heterotrophic pond management at the Queensland Department of Primary Industries’ Bribie Island Aquaculture Research Centre. Demonstrating that SIFTS can be integrated with heterotrophic pond management systems creates an opportunity for existing prawn farms using heterotrophic pond management to integrate barramundi farming into their existing operations with minimal changes required to their operations. The McRobert Aquaculture Group are discussing the integration of SIFTS into prawn farming ponds and settlement raceways with the prawn farming industry in Queensland.

The main outcome of our research using NyPa Forage to treat salinised and eutrophied waste is a further project funded by the RIRDC, in which NyPa Forage will be grown on a larger scale in the field and it’s nutritive value determined in livestock in vivo. As a result of our project, NyPa forage is being investigated to fix atmospheric carbon under a carbon credit scheme. The ‘Degree Celsius’ project is a collaboration between Terrain Natural Resource Management and BioCarbon, a private company, who are investigating the carbon storage capability of NyPa Forage in an effort to make valuable use of salt affected lands. 

Keywords: Inland saline aquaculture, Semi Intensive Floating Tank System, SIFTS, barramundi, rainbow trout, heterotrophic pond management, halophytes, NyPa, Artemia

Final Report • 2009-05-08
2005-213-DLD.pdf

Summary

We have demonstrated that yields of 10 tonnes of fish per hectare cannot be sustainably achieved in static, autotrophic saline (14 ppt) ponds (i.e. ponds dominated by photosynthetic organisms) over a 3-4 month production cycle, despite the removal of settable wastes from the SIFTS. The outcome of this finding was to advise potential industry entrants of this fact and to further investigate alternative options to enable such yields to be achieved.

Our work on integrating heterotrophic pond management techniques (i.e. ponds dominated by bacterial organisms which utilize organic carbon as an energy source) with carnivorous fish production in SIFTS have demonstrated that 15 tonnes per hectare are achievable over a 100 day production cycle. Economic analysis revealed that the profitability of a stand-alone enterprise growing carnivorous fish in SIFTS within heterotrophic ponds would be marginal at 150 tonnes per year of production. The outcomes of these trials have already been used to design further trials on optimizing heterotrophic pond management at the Queensland Department of Primary Industries’ Bribie Island Aquaculture Research Centre. Demonstrating that SIFTS can be integrated with heterotrophic pond management systems creates an opportunity for existing prawn farms using heterotrophic pond management to integrate barramundi farming into their existing operations with minimal changes required to their operations. The McRobert Aquaculture Group are discussing the integration of SIFTS into prawn farming ponds and settlement raceways with the prawn farming industry in Queensland.

The main outcome of our research using NyPa Forage to treat salinised and eutrophied waste is a further project funded by the RIRDC, in which NyPa Forage will be grown on a larger scale in the field and it’s nutritive value determined in livestock in vivo. As a result of our project, NyPa forage is being investigated to fix atmospheric carbon under a carbon credit scheme. The ‘Degree Celsius’ project is a collaboration between Terrain Natural Resource Management and BioCarbon, a private company, who are investigating the carbon storage capability of NyPa Forage in an effort to make valuable use of salt affected lands. 

Keywords: Inland saline aquaculture, Semi Intensive Floating Tank System, SIFTS, barramundi, rainbow trout, heterotrophic pond management, halophytes, NyPa, Artemia

Final Report • 2009-05-08
2005-213-DLD.pdf

Summary

We have demonstrated that yields of 10 tonnes of fish per hectare cannot be sustainably achieved in static, autotrophic saline (14 ppt) ponds (i.e. ponds dominated by photosynthetic organisms) over a 3-4 month production cycle, despite the removal of settable wastes from the SIFTS. The outcome of this finding was to advise potential industry entrants of this fact and to further investigate alternative options to enable such yields to be achieved.

Our work on integrating heterotrophic pond management techniques (i.e. ponds dominated by bacterial organisms which utilize organic carbon as an energy source) with carnivorous fish production in SIFTS have demonstrated that 15 tonnes per hectare are achievable over a 100 day production cycle. Economic analysis revealed that the profitability of a stand-alone enterprise growing carnivorous fish in SIFTS within heterotrophic ponds would be marginal at 150 tonnes per year of production. The outcomes of these trials have already been used to design further trials on optimizing heterotrophic pond management at the Queensland Department of Primary Industries’ Bribie Island Aquaculture Research Centre. Demonstrating that SIFTS can be integrated with heterotrophic pond management systems creates an opportunity for existing prawn farms using heterotrophic pond management to integrate barramundi farming into their existing operations with minimal changes required to their operations. The McRobert Aquaculture Group are discussing the integration of SIFTS into prawn farming ponds and settlement raceways with the prawn farming industry in Queensland.

The main outcome of our research using NyPa Forage to treat salinised and eutrophied waste is a further project funded by the RIRDC, in which NyPa Forage will be grown on a larger scale in the field and it’s nutritive value determined in livestock in vivo. As a result of our project, NyPa forage is being investigated to fix atmospheric carbon under a carbon credit scheme. The ‘Degree Celsius’ project is a collaboration between Terrain Natural Resource Management and BioCarbon, a private company, who are investigating the carbon storage capability of NyPa Forage in an effort to make valuable use of salt affected lands. 

Keywords: Inland saline aquaculture, Semi Intensive Floating Tank System, SIFTS, barramundi, rainbow trout, heterotrophic pond management, halophytes, NyPa, Artemia

Final Report • 2009-05-08
2005-213-DLD.pdf

Summary

We have demonstrated that yields of 10 tonnes of fish per hectare cannot be sustainably achieved in static, autotrophic saline (14 ppt) ponds (i.e. ponds dominated by photosynthetic organisms) over a 3-4 month production cycle, despite the removal of settable wastes from the SIFTS. The outcome of this finding was to advise potential industry entrants of this fact and to further investigate alternative options to enable such yields to be achieved.

Our work on integrating heterotrophic pond management techniques (i.e. ponds dominated by bacterial organisms which utilize organic carbon as an energy source) with carnivorous fish production in SIFTS have demonstrated that 15 tonnes per hectare are achievable over a 100 day production cycle. Economic analysis revealed that the profitability of a stand-alone enterprise growing carnivorous fish in SIFTS within heterotrophic ponds would be marginal at 150 tonnes per year of production. The outcomes of these trials have already been used to design further trials on optimizing heterotrophic pond management at the Queensland Department of Primary Industries’ Bribie Island Aquaculture Research Centre. Demonstrating that SIFTS can be integrated with heterotrophic pond management systems creates an opportunity for existing prawn farms using heterotrophic pond management to integrate barramundi farming into their existing operations with minimal changes required to their operations. The McRobert Aquaculture Group are discussing the integration of SIFTS into prawn farming ponds and settlement raceways with the prawn farming industry in Queensland.

The main outcome of our research using NyPa Forage to treat salinised and eutrophied waste is a further project funded by the RIRDC, in which NyPa Forage will be grown on a larger scale in the field and it’s nutritive value determined in livestock in vivo. As a result of our project, NyPa forage is being investigated to fix atmospheric carbon under a carbon credit scheme. The ‘Degree Celsius’ project is a collaboration between Terrain Natural Resource Management and BioCarbon, a private company, who are investigating the carbon storage capability of NyPa Forage in an effort to make valuable use of salt affected lands. 

Keywords: Inland saline aquaculture, Semi Intensive Floating Tank System, SIFTS, barramundi, rainbow trout, heterotrophic pond management, halophytes, NyPa, Artemia

Final Report • 2009-05-08
2005-213-DLD.pdf

Summary

We have demonstrated that yields of 10 tonnes of fish per hectare cannot be sustainably achieved in static, autotrophic saline (14 ppt) ponds (i.e. ponds dominated by photosynthetic organisms) over a 3-4 month production cycle, despite the removal of settable wastes from the SIFTS. The outcome of this finding was to advise potential industry entrants of this fact and to further investigate alternative options to enable such yields to be achieved.

Our work on integrating heterotrophic pond management techniques (i.e. ponds dominated by bacterial organisms which utilize organic carbon as an energy source) with carnivorous fish production in SIFTS have demonstrated that 15 tonnes per hectare are achievable over a 100 day production cycle. Economic analysis revealed that the profitability of a stand-alone enterprise growing carnivorous fish in SIFTS within heterotrophic ponds would be marginal at 150 tonnes per year of production. The outcomes of these trials have already been used to design further trials on optimizing heterotrophic pond management at the Queensland Department of Primary Industries’ Bribie Island Aquaculture Research Centre. Demonstrating that SIFTS can be integrated with heterotrophic pond management systems creates an opportunity for existing prawn farms using heterotrophic pond management to integrate barramundi farming into their existing operations with minimal changes required to their operations. The McRobert Aquaculture Group are discussing the integration of SIFTS into prawn farming ponds and settlement raceways with the prawn farming industry in Queensland.

The main outcome of our research using NyPa Forage to treat salinised and eutrophied waste is a further project funded by the RIRDC, in which NyPa Forage will be grown on a larger scale in the field and it’s nutritive value determined in livestock in vivo. As a result of our project, NyPa forage is being investigated to fix atmospheric carbon under a carbon credit scheme. The ‘Degree Celsius’ project is a collaboration between Terrain Natural Resource Management and BioCarbon, a private company, who are investigating the carbon storage capability of NyPa Forage in an effort to make valuable use of salt affected lands. 

Keywords: Inland saline aquaculture, Semi Intensive Floating Tank System, SIFTS, barramundi, rainbow trout, heterotrophic pond management, halophytes, NyPa, Artemia

Final Report • 2009-05-08
2005-213-DLD.pdf

Summary

We have demonstrated that yields of 10 tonnes of fish per hectare cannot be sustainably achieved in static, autotrophic saline (14 ppt) ponds (i.e. ponds dominated by photosynthetic organisms) over a 3-4 month production cycle, despite the removal of settable wastes from the SIFTS. The outcome of this finding was to advise potential industry entrants of this fact and to further investigate alternative options to enable such yields to be achieved.

Our work on integrating heterotrophic pond management techniques (i.e. ponds dominated by bacterial organisms which utilize organic carbon as an energy source) with carnivorous fish production in SIFTS have demonstrated that 15 tonnes per hectare are achievable over a 100 day production cycle. Economic analysis revealed that the profitability of a stand-alone enterprise growing carnivorous fish in SIFTS within heterotrophic ponds would be marginal at 150 tonnes per year of production. The outcomes of these trials have already been used to design further trials on optimizing heterotrophic pond management at the Queensland Department of Primary Industries’ Bribie Island Aquaculture Research Centre. Demonstrating that SIFTS can be integrated with heterotrophic pond management systems creates an opportunity for existing prawn farms using heterotrophic pond management to integrate barramundi farming into their existing operations with minimal changes required to their operations. The McRobert Aquaculture Group are discussing the integration of SIFTS into prawn farming ponds and settlement raceways with the prawn farming industry in Queensland.

The main outcome of our research using NyPa Forage to treat salinised and eutrophied waste is a further project funded by the RIRDC, in which NyPa Forage will be grown on a larger scale in the field and it’s nutritive value determined in livestock in vivo. As a result of our project, NyPa forage is being investigated to fix atmospheric carbon under a carbon credit scheme. The ‘Degree Celsius’ project is a collaboration between Terrain Natural Resource Management and BioCarbon, a private company, who are investigating the carbon storage capability of NyPa Forage in an effort to make valuable use of salt affected lands. 

Keywords: Inland saline aquaculture, Semi Intensive Floating Tank System, SIFTS, barramundi, rainbow trout, heterotrophic pond management, halophytes, NyPa, Artemia

Final Report • 2009-05-08
2005-213-DLD.pdf

Summary

We have demonstrated that yields of 10 tonnes of fish per hectare cannot be sustainably achieved in static, autotrophic saline (14 ppt) ponds (i.e. ponds dominated by photosynthetic organisms) over a 3-4 month production cycle, despite the removal of settable wastes from the SIFTS. The outcome of this finding was to advise potential industry entrants of this fact and to further investigate alternative options to enable such yields to be achieved.

Our work on integrating heterotrophic pond management techniques (i.e. ponds dominated by bacterial organisms which utilize organic carbon as an energy source) with carnivorous fish production in SIFTS have demonstrated that 15 tonnes per hectare are achievable over a 100 day production cycle. Economic analysis revealed that the profitability of a stand-alone enterprise growing carnivorous fish in SIFTS within heterotrophic ponds would be marginal at 150 tonnes per year of production. The outcomes of these trials have already been used to design further trials on optimizing heterotrophic pond management at the Queensland Department of Primary Industries’ Bribie Island Aquaculture Research Centre. Demonstrating that SIFTS can be integrated with heterotrophic pond management systems creates an opportunity for existing prawn farms using heterotrophic pond management to integrate barramundi farming into their existing operations with minimal changes required to their operations. The McRobert Aquaculture Group are discussing the integration of SIFTS into prawn farming ponds and settlement raceways with the prawn farming industry in Queensland.

The main outcome of our research using NyPa Forage to treat salinised and eutrophied waste is a further project funded by the RIRDC, in which NyPa Forage will be grown on a larger scale in the field and it’s nutritive value determined in livestock in vivo. As a result of our project, NyPa forage is being investigated to fix atmospheric carbon under a carbon credit scheme. The ‘Degree Celsius’ project is a collaboration between Terrain Natural Resource Management and BioCarbon, a private company, who are investigating the carbon storage capability of NyPa Forage in an effort to make valuable use of salt affected lands. 

Keywords: Inland saline aquaculture, Semi Intensive Floating Tank System, SIFTS, barramundi, rainbow trout, heterotrophic pond management, halophytes, NyPa, Artemia

Final Report • 2009-05-08
2005-213-DLD.pdf

Summary

We have demonstrated that yields of 10 tonnes of fish per hectare cannot be sustainably achieved in static, autotrophic saline (14 ppt) ponds (i.e. ponds dominated by photosynthetic organisms) over a 3-4 month production cycle, despite the removal of settable wastes from the SIFTS. The outcome of this finding was to advise potential industry entrants of this fact and to further investigate alternative options to enable such yields to be achieved.

Our work on integrating heterotrophic pond management techniques (i.e. ponds dominated by bacterial organisms which utilize organic carbon as an energy source) with carnivorous fish production in SIFTS have demonstrated that 15 tonnes per hectare are achievable over a 100 day production cycle. Economic analysis revealed that the profitability of a stand-alone enterprise growing carnivorous fish in SIFTS within heterotrophic ponds would be marginal at 150 tonnes per year of production. The outcomes of these trials have already been used to design further trials on optimizing heterotrophic pond management at the Queensland Department of Primary Industries’ Bribie Island Aquaculture Research Centre. Demonstrating that SIFTS can be integrated with heterotrophic pond management systems creates an opportunity for existing prawn farms using heterotrophic pond management to integrate barramundi farming into their existing operations with minimal changes required to their operations. The McRobert Aquaculture Group are discussing the integration of SIFTS into prawn farming ponds and settlement raceways with the prawn farming industry in Queensland.

The main outcome of our research using NyPa Forage to treat salinised and eutrophied waste is a further project funded by the RIRDC, in which NyPa Forage will be grown on a larger scale in the field and it’s nutritive value determined in livestock in vivo. As a result of our project, NyPa forage is being investigated to fix atmospheric carbon under a carbon credit scheme. The ‘Degree Celsius’ project is a collaboration between Terrain Natural Resource Management and BioCarbon, a private company, who are investigating the carbon storage capability of NyPa Forage in an effort to make valuable use of salt affected lands. 

Keywords: Inland saline aquaculture, Semi Intensive Floating Tank System, SIFTS, barramundi, rainbow trout, heterotrophic pond management, halophytes, NyPa, Artemia

Final Report • 2009-05-08
2005-213-DLD.pdf

Summary

We have demonstrated that yields of 10 tonnes of fish per hectare cannot be sustainably achieved in static, autotrophic saline (14 ppt) ponds (i.e. ponds dominated by photosynthetic organisms) over a 3-4 month production cycle, despite the removal of settable wastes from the SIFTS. The outcome of this finding was to advise potential industry entrants of this fact and to further investigate alternative options to enable such yields to be achieved.

Our work on integrating heterotrophic pond management techniques (i.e. ponds dominated by bacterial organisms which utilize organic carbon as an energy source) with carnivorous fish production in SIFTS have demonstrated that 15 tonnes per hectare are achievable over a 100 day production cycle. Economic analysis revealed that the profitability of a stand-alone enterprise growing carnivorous fish in SIFTS within heterotrophic ponds would be marginal at 150 tonnes per year of production. The outcomes of these trials have already been used to design further trials on optimizing heterotrophic pond management at the Queensland Department of Primary Industries’ Bribie Island Aquaculture Research Centre. Demonstrating that SIFTS can be integrated with heterotrophic pond management systems creates an opportunity for existing prawn farms using heterotrophic pond management to integrate barramundi farming into their existing operations with minimal changes required to their operations. The McRobert Aquaculture Group are discussing the integration of SIFTS into prawn farming ponds and settlement raceways with the prawn farming industry in Queensland.

The main outcome of our research using NyPa Forage to treat salinised and eutrophied waste is a further project funded by the RIRDC, in which NyPa Forage will be grown on a larger scale in the field and it’s nutritive value determined in livestock in vivo. As a result of our project, NyPa forage is being investigated to fix atmospheric carbon under a carbon credit scheme. The ‘Degree Celsius’ project is a collaboration between Terrain Natural Resource Management and BioCarbon, a private company, who are investigating the carbon storage capability of NyPa Forage in an effort to make valuable use of salt affected lands. 

Keywords: Inland saline aquaculture, Semi Intensive Floating Tank System, SIFTS, barramundi, rainbow trout, heterotrophic pond management, halophytes, NyPa, Artemia

Final Report • 2009-05-08
2005-213-DLD.pdf

Summary

We have demonstrated that yields of 10 tonnes of fish per hectare cannot be sustainably achieved in static, autotrophic saline (14 ppt) ponds (i.e. ponds dominated by photosynthetic organisms) over a 3-4 month production cycle, despite the removal of settable wastes from the SIFTS. The outcome of this finding was to advise potential industry entrants of this fact and to further investigate alternative options to enable such yields to be achieved.

Our work on integrating heterotrophic pond management techniques (i.e. ponds dominated by bacterial organisms which utilize organic carbon as an energy source) with carnivorous fish production in SIFTS have demonstrated that 15 tonnes per hectare are achievable over a 100 day production cycle. Economic analysis revealed that the profitability of a stand-alone enterprise growing carnivorous fish in SIFTS within heterotrophic ponds would be marginal at 150 tonnes per year of production. The outcomes of these trials have already been used to design further trials on optimizing heterotrophic pond management at the Queensland Department of Primary Industries’ Bribie Island Aquaculture Research Centre. Demonstrating that SIFTS can be integrated with heterotrophic pond management systems creates an opportunity for existing prawn farms using heterotrophic pond management to integrate barramundi farming into their existing operations with minimal changes required to their operations. The McRobert Aquaculture Group are discussing the integration of SIFTS into prawn farming ponds and settlement raceways with the prawn farming industry in Queensland.

The main outcome of our research using NyPa Forage to treat salinised and eutrophied waste is a further project funded by the RIRDC, in which NyPa Forage will be grown on a larger scale in the field and it’s nutritive value determined in livestock in vivo. As a result of our project, NyPa forage is being investigated to fix atmospheric carbon under a carbon credit scheme. The ‘Degree Celsius’ project is a collaboration between Terrain Natural Resource Management and BioCarbon, a private company, who are investigating the carbon storage capability of NyPa Forage in an effort to make valuable use of salt affected lands. 

Keywords: Inland saline aquaculture, Semi Intensive Floating Tank System, SIFTS, barramundi, rainbow trout, heterotrophic pond management, halophytes, NyPa, Artemia

Final Report • 2009-05-08
2005-213-DLD.pdf

Summary

We have demonstrated that yields of 10 tonnes of fish per hectare cannot be sustainably achieved in static, autotrophic saline (14 ppt) ponds (i.e. ponds dominated by photosynthetic organisms) over a 3-4 month production cycle, despite the removal of settable wastes from the SIFTS. The outcome of this finding was to advise potential industry entrants of this fact and to further investigate alternative options to enable such yields to be achieved.

Our work on integrating heterotrophic pond management techniques (i.e. ponds dominated by bacterial organisms which utilize organic carbon as an energy source) with carnivorous fish production in SIFTS have demonstrated that 15 tonnes per hectare are achievable over a 100 day production cycle. Economic analysis revealed that the profitability of a stand-alone enterprise growing carnivorous fish in SIFTS within heterotrophic ponds would be marginal at 150 tonnes per year of production. The outcomes of these trials have already been used to design further trials on optimizing heterotrophic pond management at the Queensland Department of Primary Industries’ Bribie Island Aquaculture Research Centre. Demonstrating that SIFTS can be integrated with heterotrophic pond management systems creates an opportunity for existing prawn farms using heterotrophic pond management to integrate barramundi farming into their existing operations with minimal changes required to their operations. The McRobert Aquaculture Group are discussing the integration of SIFTS into prawn farming ponds and settlement raceways with the prawn farming industry in Queensland.

The main outcome of our research using NyPa Forage to treat salinised and eutrophied waste is a further project funded by the RIRDC, in which NyPa Forage will be grown on a larger scale in the field and it’s nutritive value determined in livestock in vivo. As a result of our project, NyPa forage is being investigated to fix atmospheric carbon under a carbon credit scheme. The ‘Degree Celsius’ project is a collaboration between Terrain Natural Resource Management and BioCarbon, a private company, who are investigating the carbon storage capability of NyPa Forage in an effort to make valuable use of salt affected lands. 

Keywords: Inland saline aquaculture, Semi Intensive Floating Tank System, SIFTS, barramundi, rainbow trout, heterotrophic pond management, halophytes, NyPa, Artemia

Final Report • 2009-05-08
2005-213-DLD.pdf

Summary

We have demonstrated that yields of 10 tonnes of fish per hectare cannot be sustainably achieved in static, autotrophic saline (14 ppt) ponds (i.e. ponds dominated by photosynthetic organisms) over a 3-4 month production cycle, despite the removal of settable wastes from the SIFTS. The outcome of this finding was to advise potential industry entrants of this fact and to further investigate alternative options to enable such yields to be achieved.

Our work on integrating heterotrophic pond management techniques (i.e. ponds dominated by bacterial organisms which utilize organic carbon as an energy source) with carnivorous fish production in SIFTS have demonstrated that 15 tonnes per hectare are achievable over a 100 day production cycle. Economic analysis revealed that the profitability of a stand-alone enterprise growing carnivorous fish in SIFTS within heterotrophic ponds would be marginal at 150 tonnes per year of production. The outcomes of these trials have already been used to design further trials on optimizing heterotrophic pond management at the Queensland Department of Primary Industries’ Bribie Island Aquaculture Research Centre. Demonstrating that SIFTS can be integrated with heterotrophic pond management systems creates an opportunity for existing prawn farms using heterotrophic pond management to integrate barramundi farming into their existing operations with minimal changes required to their operations. The McRobert Aquaculture Group are discussing the integration of SIFTS into prawn farming ponds and settlement raceways with the prawn farming industry in Queensland.

The main outcome of our research using NyPa Forage to treat salinised and eutrophied waste is a further project funded by the RIRDC, in which NyPa Forage will be grown on a larger scale in the field and it’s nutritive value determined in livestock in vivo. As a result of our project, NyPa forage is being investigated to fix atmospheric carbon under a carbon credit scheme. The ‘Degree Celsius’ project is a collaboration between Terrain Natural Resource Management and BioCarbon, a private company, who are investigating the carbon storage capability of NyPa Forage in an effort to make valuable use of salt affected lands. 

Keywords: Inland saline aquaculture, Semi Intensive Floating Tank System, SIFTS, barramundi, rainbow trout, heterotrophic pond management, halophytes, NyPa, Artemia

Final Report • 2009-05-08
2005-213-DLD.pdf

Summary

We have demonstrated that yields of 10 tonnes of fish per hectare cannot be sustainably achieved in static, autotrophic saline (14 ppt) ponds (i.e. ponds dominated by photosynthetic organisms) over a 3-4 month production cycle, despite the removal of settable wastes from the SIFTS. The outcome of this finding was to advise potential industry entrants of this fact and to further investigate alternative options to enable such yields to be achieved.

Our work on integrating heterotrophic pond management techniques (i.e. ponds dominated by bacterial organisms which utilize organic carbon as an energy source) with carnivorous fish production in SIFTS have demonstrated that 15 tonnes per hectare are achievable over a 100 day production cycle. Economic analysis revealed that the profitability of a stand-alone enterprise growing carnivorous fish in SIFTS within heterotrophic ponds would be marginal at 150 tonnes per year of production. The outcomes of these trials have already been used to design further trials on optimizing heterotrophic pond management at the Queensland Department of Primary Industries’ Bribie Island Aquaculture Research Centre. Demonstrating that SIFTS can be integrated with heterotrophic pond management systems creates an opportunity for existing prawn farms using heterotrophic pond management to integrate barramundi farming into their existing operations with minimal changes required to their operations. The McRobert Aquaculture Group are discussing the integration of SIFTS into prawn farming ponds and settlement raceways with the prawn farming industry in Queensland.

The main outcome of our research using NyPa Forage to treat salinised and eutrophied waste is a further project funded by the RIRDC, in which NyPa Forage will be grown on a larger scale in the field and it’s nutritive value determined in livestock in vivo. As a result of our project, NyPa forage is being investigated to fix atmospheric carbon under a carbon credit scheme. The ‘Degree Celsius’ project is a collaboration between Terrain Natural Resource Management and BioCarbon, a private company, who are investigating the carbon storage capability of NyPa Forage in an effort to make valuable use of salt affected lands. 

Keywords: Inland saline aquaculture, Semi Intensive Floating Tank System, SIFTS, barramundi, rainbow trout, heterotrophic pond management, halophytes, NyPa, Artemia

Demersal finfish resource assessment survey of the north-west slope of Western Australia

Project number: 1998-152
Project Status:
Completed
Budget expenditure: $114,594.93
Principal Investigator: Stephen J. Newman
Organisation: Department of Primary Industries and Regional Development (DPIRD) WA
Project start/end date: 21 Jun 1998 - 21 Jul 2004
Contact:
FRDC

Need

Trawling in waters west of the 200m isobath is managed by AFMA as part of the NWSTF. AFMA's draft Management Plan for the NWSTF does not encompass fishing for finfish, and this omission has been the main impediment to implementing the Plan to date. In order for the Plan to fully cover all fishery resources within the NWSTF area, knowledge of the distribution of demersal scalefish and their relative abundance is urgently needed.

In the waters east of 120oE, a fishery already exists which covers the slope for line and trap fishing, though no formal discussions have been held with the Commonwealth regarding trawling for the same fish resource in that area. Clearly the jurisdictional arrangements need to be reviewed. The capability of the State-managed and the Commonwealth-managed fishing methods to utilise the resources at different depths form part of the basis for this review.

There is a need for information on the type of resource available to fishers, the relative abundance of those species which have either commercial potential or current market acceptance in the Indo-Pacific and the relative catchability of each of the fishing methods (fish trawl vs. fish trap vs. line). Furthermore, there is a need for biological information (eg. longevity, natural mortality, reproductive biology) about the key species available to fishers in order to begin to understand the population dynamics of these species and hence to assess their vulnerability to fishing pressure. The information that will be provided by this project will form the basis for reviewing the current OCS arrangements between the State and the Commonwealth and will assist in developing management plans for the sustainable exploitation of the demersal fish resources of the North West slope.

Objectives

1. To determine the species distributions and composition of demersal scalefish resources on the NW slope and to examine industry collected catch and effort data to determine an index of relative abundance.
2. To assess the viability of exploiting the demersal scalefish resource of the North-West Slope using (a) fish trawls, traps and lines in the western zone (west of 120 degrees longitude) and
(b) traps and lines in the eastern zone (east of 120 degrees longitude).
3. To gather biological information on the major species (eg. to investigate longevity, natural mortality and aspects of their reproductive biology).

Final report

ISBN: 1 877098 23 X
Author: Stephen Newman
Final Report • 2003-08-29 • 1.87 MB
1998-152-DLD.pdf

Summary

The nature and extent of demersal finfish resources in deep slope waters (>200m) off the northwest coast of Western Australia are poorly understood.  Existing fish trawl, trap and line fishing effort is concentrated in shallower waters (<200m), while trawling in deep slope waters (>200m) exclusively targets crustaceans.

Despite significant initial levels of interest in this project, poor commercial catches contributed to fishers returning to grounds in shallower waters on the shelf.  As a consequence of the lack of significant commercial catches in the deep slope region there was a very low level of industry participation in the project.  To date there is little evidence to indicate the existence or otherwise of significant demersal fish resources in the deep slope region.

A number of high value species were landed from the survey and include; lenko snapper (Dentex tumifrons), ruby snapper (Etelis carbunculus), flame snapper (Etelis coruscans), eight bar cod/grouper (Epinephelus octofasciatus) and Tang snapper (Lipocheilus carnolabrum).

Final Report • 2003-08-29 • 1.87 MB
1998-152-DLD.pdf

Summary

The nature and extent of demersal finfish resources in deep slope waters (>200m) off the northwest coast of Western Australia are poorly understood.  Existing fish trawl, trap and line fishing effort is concentrated in shallower waters (<200m), while trawling in deep slope waters (>200m) exclusively targets crustaceans.

Despite significant initial levels of interest in this project, poor commercial catches contributed to fishers returning to grounds in shallower waters on the shelf.  As a consequence of the lack of significant commercial catches in the deep slope region there was a very low level of industry participation in the project.  To date there is little evidence to indicate the existence or otherwise of significant demersal fish resources in the deep slope region.

A number of high value species were landed from the survey and include; lenko snapper (Dentex tumifrons), ruby snapper (Etelis carbunculus), flame snapper (Etelis coruscans), eight bar cod/grouper (Epinephelus octofasciatus) and Tang snapper (Lipocheilus carnolabrum).

Final Report • 2003-08-29 • 1.87 MB
1998-152-DLD.pdf

Summary

The nature and extent of demersal finfish resources in deep slope waters (>200m) off the northwest coast of Western Australia are poorly understood.  Existing fish trawl, trap and line fishing effort is concentrated in shallower waters (<200m), while trawling in deep slope waters (>200m) exclusively targets crustaceans.

Despite significant initial levels of interest in this project, poor commercial catches contributed to fishers returning to grounds in shallower waters on the shelf.  As a consequence of the lack of significant commercial catches in the deep slope region there was a very low level of industry participation in the project.  To date there is little evidence to indicate the existence or otherwise of significant demersal fish resources in the deep slope region.

A number of high value species were landed from the survey and include; lenko snapper (Dentex tumifrons), ruby snapper (Etelis carbunculus), flame snapper (Etelis coruscans), eight bar cod/grouper (Epinephelus octofasciatus) and Tang snapper (Lipocheilus carnolabrum).

Final Report • 2003-08-29 • 1.87 MB
1998-152-DLD.pdf

Summary

The nature and extent of demersal finfish resources in deep slope waters (>200m) off the northwest coast of Western Australia are poorly understood.  Existing fish trawl, trap and line fishing effort is concentrated in shallower waters (<200m), while trawling in deep slope waters (>200m) exclusively targets crustaceans.

Despite significant initial levels of interest in this project, poor commercial catches contributed to fishers returning to grounds in shallower waters on the shelf.  As a consequence of the lack of significant commercial catches in the deep slope region there was a very low level of industry participation in the project.  To date there is little evidence to indicate the existence or otherwise of significant demersal fish resources in the deep slope region.

A number of high value species were landed from the survey and include; lenko snapper (Dentex tumifrons), ruby snapper (Etelis carbunculus), flame snapper (Etelis coruscans), eight bar cod/grouper (Epinephelus octofasciatus) and Tang snapper (Lipocheilus carnolabrum).

Final Report • 2003-08-29 • 1.87 MB
1998-152-DLD.pdf

Summary

The nature and extent of demersal finfish resources in deep slope waters (>200m) off the northwest coast of Western Australia are poorly understood.  Existing fish trawl, trap and line fishing effort is concentrated in shallower waters (<200m), while trawling in deep slope waters (>200m) exclusively targets crustaceans.

Despite significant initial levels of interest in this project, poor commercial catches contributed to fishers returning to grounds in shallower waters on the shelf.  As a consequence of the lack of significant commercial catches in the deep slope region there was a very low level of industry participation in the project.  To date there is little evidence to indicate the existence or otherwise of significant demersal fish resources in the deep slope region.

A number of high value species were landed from the survey and include; lenko snapper (Dentex tumifrons), ruby snapper (Etelis carbunculus), flame snapper (Etelis coruscans), eight bar cod/grouper (Epinephelus octofasciatus) and Tang snapper (Lipocheilus carnolabrum).

Final Report • 2003-08-29 • 1.87 MB
1998-152-DLD.pdf

Summary

The nature and extent of demersal finfish resources in deep slope waters (>200m) off the northwest coast of Western Australia are poorly understood.  Existing fish trawl, trap and line fishing effort is concentrated in shallower waters (<200m), while trawling in deep slope waters (>200m) exclusively targets crustaceans.

Despite significant initial levels of interest in this project, poor commercial catches contributed to fishers returning to grounds in shallower waters on the shelf.  As a consequence of the lack of significant commercial catches in the deep slope region there was a very low level of industry participation in the project.  To date there is little evidence to indicate the existence or otherwise of significant demersal fish resources in the deep slope region.

A number of high value species were landed from the survey and include; lenko snapper (Dentex tumifrons), ruby snapper (Etelis carbunculus), flame snapper (Etelis coruscans), eight bar cod/grouper (Epinephelus octofasciatus) and Tang snapper (Lipocheilus carnolabrum).

Final Report • 2003-08-29 • 1.87 MB
1998-152-DLD.pdf

Summary

The nature and extent of demersal finfish resources in deep slope waters (>200m) off the northwest coast of Western Australia are poorly understood.  Existing fish trawl, trap and line fishing effort is concentrated in shallower waters (<200m), while trawling in deep slope waters (>200m) exclusively targets crustaceans.

Despite significant initial levels of interest in this project, poor commercial catches contributed to fishers returning to grounds in shallower waters on the shelf.  As a consequence of the lack of significant commercial catches in the deep slope region there was a very low level of industry participation in the project.  To date there is little evidence to indicate the existence or otherwise of significant demersal fish resources in the deep slope region.

A number of high value species were landed from the survey and include; lenko snapper (Dentex tumifrons), ruby snapper (Etelis carbunculus), flame snapper (Etelis coruscans), eight bar cod/grouper (Epinephelus octofasciatus) and Tang snapper (Lipocheilus carnolabrum).

Final Report • 2003-08-29 • 1.87 MB
1998-152-DLD.pdf

Summary

The nature and extent of demersal finfish resources in deep slope waters (>200m) off the northwest coast of Western Australia are poorly understood.  Existing fish trawl, trap and line fishing effort is concentrated in shallower waters (<200m), while trawling in deep slope waters (>200m) exclusively targets crustaceans.

Despite significant initial levels of interest in this project, poor commercial catches contributed to fishers returning to grounds in shallower waters on the shelf.  As a consequence of the lack of significant commercial catches in the deep slope region there was a very low level of industry participation in the project.  To date there is little evidence to indicate the existence or otherwise of significant demersal fish resources in the deep slope region.

A number of high value species were landed from the survey and include; lenko snapper (Dentex tumifrons), ruby snapper (Etelis carbunculus), flame snapper (Etelis coruscans), eight bar cod/grouper (Epinephelus octofasciatus) and Tang snapper (Lipocheilus carnolabrum).

Final Report • 2003-08-29 • 1.87 MB
1998-152-DLD.pdf

Summary

The nature and extent of demersal finfish resources in deep slope waters (>200m) off the northwest coast of Western Australia are poorly understood.  Existing fish trawl, trap and line fishing effort is concentrated in shallower waters (<200m), while trawling in deep slope waters (>200m) exclusively targets crustaceans.

Despite significant initial levels of interest in this project, poor commercial catches contributed to fishers returning to grounds in shallower waters on the shelf.  As a consequence of the lack of significant commercial catches in the deep slope region there was a very low level of industry participation in the project.  To date there is little evidence to indicate the existence or otherwise of significant demersal fish resources in the deep slope region.

A number of high value species were landed from the survey and include; lenko snapper (Dentex tumifrons), ruby snapper (Etelis carbunculus), flame snapper (Etelis coruscans), eight bar cod/grouper (Epinephelus octofasciatus) and Tang snapper (Lipocheilus carnolabrum).

Final Report • 2003-08-29 • 1.87 MB
1998-152-DLD.pdf

Summary

The nature and extent of demersal finfish resources in deep slope waters (>200m) off the northwest coast of Western Australia are poorly understood.  Existing fish trawl, trap and line fishing effort is concentrated in shallower waters (<200m), while trawling in deep slope waters (>200m) exclusively targets crustaceans.

Despite significant initial levels of interest in this project, poor commercial catches contributed to fishers returning to grounds in shallower waters on the shelf.  As a consequence of the lack of significant commercial catches in the deep slope region there was a very low level of industry participation in the project.  To date there is little evidence to indicate the existence or otherwise of significant demersal fish resources in the deep slope region.

A number of high value species were landed from the survey and include; lenko snapper (Dentex tumifrons), ruby snapper (Etelis carbunculus), flame snapper (Etelis coruscans), eight bar cod/grouper (Epinephelus octofasciatus) and Tang snapper (Lipocheilus carnolabrum).

Final Report • 2003-08-29 • 1.87 MB
1998-152-DLD.pdf

Summary

The nature and extent of demersal finfish resources in deep slope waters (>200m) off the northwest coast of Western Australia are poorly understood.  Existing fish trawl, trap and line fishing effort is concentrated in shallower waters (<200m), while trawling in deep slope waters (>200m) exclusively targets crustaceans.

Despite significant initial levels of interest in this project, poor commercial catches contributed to fishers returning to grounds in shallower waters on the shelf.  As a consequence of the lack of significant commercial catches in the deep slope region there was a very low level of industry participation in the project.  To date there is little evidence to indicate the existence or otherwise of significant demersal fish resources in the deep slope region.

A number of high value species were landed from the survey and include; lenko snapper (Dentex tumifrons), ruby snapper (Etelis carbunculus), flame snapper (Etelis coruscans), eight bar cod/grouper (Epinephelus octofasciatus) and Tang snapper (Lipocheilus carnolabrum).

Final Report • 2003-08-29 • 1.87 MB
1998-152-DLD.pdf

Summary

The nature and extent of demersal finfish resources in deep slope waters (>200m) off the northwest coast of Western Australia are poorly understood.  Existing fish trawl, trap and line fishing effort is concentrated in shallower waters (<200m), while trawling in deep slope waters (>200m) exclusively targets crustaceans.

Despite significant initial levels of interest in this project, poor commercial catches contributed to fishers returning to grounds in shallower waters on the shelf.  As a consequence of the lack of significant commercial catches in the deep slope region there was a very low level of industry participation in the project.  To date there is little evidence to indicate the existence or otherwise of significant demersal fish resources in the deep slope region.

A number of high value species were landed from the survey and include; lenko snapper (Dentex tumifrons), ruby snapper (Etelis carbunculus), flame snapper (Etelis coruscans), eight bar cod/grouper (Epinephelus octofasciatus) and Tang snapper (Lipocheilus carnolabrum).

Final Report • 2003-08-29 • 1.87 MB
1998-152-DLD.pdf

Summary

The nature and extent of demersal finfish resources in deep slope waters (>200m) off the northwest coast of Western Australia are poorly understood.  Existing fish trawl, trap and line fishing effort is concentrated in shallower waters (<200m), while trawling in deep slope waters (>200m) exclusively targets crustaceans.

Despite significant initial levels of interest in this project, poor commercial catches contributed to fishers returning to grounds in shallower waters on the shelf.  As a consequence of the lack of significant commercial catches in the deep slope region there was a very low level of industry participation in the project.  To date there is little evidence to indicate the existence or otherwise of significant demersal fish resources in the deep slope region.

A number of high value species were landed from the survey and include; lenko snapper (Dentex tumifrons), ruby snapper (Etelis carbunculus), flame snapper (Etelis coruscans), eight bar cod/grouper (Epinephelus octofasciatus) and Tang snapper (Lipocheilus carnolabrum).

Final Report • 2003-08-29 • 1.87 MB
1998-152-DLD.pdf

Summary

The nature and extent of demersal finfish resources in deep slope waters (>200m) off the northwest coast of Western Australia are poorly understood.  Existing fish trawl, trap and line fishing effort is concentrated in shallower waters (<200m), while trawling in deep slope waters (>200m) exclusively targets crustaceans.

Despite significant initial levels of interest in this project, poor commercial catches contributed to fishers returning to grounds in shallower waters on the shelf.  As a consequence of the lack of significant commercial catches in the deep slope region there was a very low level of industry participation in the project.  To date there is little evidence to indicate the existence or otherwise of significant demersal fish resources in the deep slope region.

A number of high value species were landed from the survey and include; lenko snapper (Dentex tumifrons), ruby snapper (Etelis carbunculus), flame snapper (Etelis coruscans), eight bar cod/grouper (Epinephelus octofasciatus) and Tang snapper (Lipocheilus carnolabrum).

Final Report • 2003-08-29 • 1.87 MB
1998-152-DLD.pdf

Summary

The nature and extent of demersal finfish resources in deep slope waters (>200m) off the northwest coast of Western Australia are poorly understood.  Existing fish trawl, trap and line fishing effort is concentrated in shallower waters (<200m), while trawling in deep slope waters (>200m) exclusively targets crustaceans.

Despite significant initial levels of interest in this project, poor commercial catches contributed to fishers returning to grounds in shallower waters on the shelf.  As a consequence of the lack of significant commercial catches in the deep slope region there was a very low level of industry participation in the project.  To date there is little evidence to indicate the existence or otherwise of significant demersal fish resources in the deep slope region.

A number of high value species were landed from the survey and include; lenko snapper (Dentex tumifrons), ruby snapper (Etelis carbunculus), flame snapper (Etelis coruscans), eight bar cod/grouper (Epinephelus octofasciatus) and Tang snapper (Lipocheilus carnolabrum).

Development of an agent-based model to communicate implications of recruitment variability of finfish to recreational fishers

Project number: 2008-033
Project Status:
Completed
Budget expenditure: $75,000.00
Principal Investigator: Alex Hesp
Organisation: Murdoch University
Project start/end date: 31 Dec 2008 - 28 Apr 2010
Contact:
FRDC

Need

Fisheries management is becoming increasingly complex with increasing numbers of recreational fishers targeting multiple species and switching targets in response to changes in abundance of stocks, and the need to sustain stocks within an ecosystem framework. For fisheries scientists, the changes require training in quantitative skills and the development of experience in computer modelling, while, for fishery managers, the issues of fisheries management are now extended to understanding the social and economic consequences of fishing regulations for recreational fisheries, the behavioural responses of recreational fishers to regulations, and the implications of the spatial distribution and movements of fish and fishers. In particular, RecFishWest has identified a need to communicate better to fishers the implications of recruitment variability, and to understand the effectiveness of alternative fisheries regulations that are proposed to ensure the sustainability of those stocks with high variability in inter-annual recruitment levels.

In common with other countries, fisheries agencies find it difficult to recruit scientists with strong quantitative skills, even from overseas. Development of quantitative skills during postgraduate or postdoctoral studies has been identified as one approach to improving the supply of quantitative scientists, which is a need that must be addressed if Australia is to provide the high-quality research advice that will be needed in the future. The need to develop a simulation tool that will aid communication with recreational fishers and allow exploration of the social and behavioural implications of fishing, recruitment variability and fishing regulations has been identified by RecFishWest. Agent-based models allow investigation of aspects of fisheries at the scale at which individual fishers operate, thereby providing analytical tools assisting in assessing the implications of fishers’ responses to new fishing regulations, a need that will increase as the share of the catch taken by recreational fishers continues to grow.

Objectives

1. Provide a simulation tool to communicate to fishers the implications of recruitment variability for a fish stock and for the catches of individual recreational fishers.
2. Explore how individual recreational fishers are likely to respond to changes in fish abundance and to changes in commonly-used fisheries regulations.
3. Develop the computer simulation and modelling skills of an early-career fisheries scientist.

Final report

ISBN: 978-0-86905-918-0
Author: Alex Hesp
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Species

Organisation