96,554 results

El-Nemo SE: risk assessment of impacts of climate change for key species in South Eastern Australia

Project number: 2009-070
Project Status:
Completed
Budget expenditure: $140,163.66
Principal Investigator: Gretta T. Pecl
Organisation: University of Tasmania (UTAS)
Project start/end date: 21 Dec 2009 - 30 Oct 2010
Contact:
FRDC

Need

Climate change is expected to alter physical and chemical oceanographic conditions and processes around Australia, yet the influence this could have on the distributions of various marine species is still relatively unknown. The marine waters of South Eastern Australia are expected to be significantly affected by climate change, experiencing the greatest climate-driven changes in the southern hemisphere over the next century. The impacts and opportunities that will result from these changes will depend, in part, on how well the fisheries and aquaculture sectors and their managers respond to these challenges. A sound risk-based approach to informing both management arrangements and decisions by the sectors will be critical for optimizing outcomes. It is essential that the potential impacts of climate change on key resources are assessed and effectively communicated to support the development of policies that allow industry to minimize adverse effects by optimizing adaptation responses (e.g. by providing flexible management arrangements) and seizing opportunities as they arise (e.g. for species where productivity increases).

This project has been identified as a clear and immediate need through the SEAP Plan (draft) and also establishes a platform of baseline information from which we can start to address several key priority areas identified in the Draft Marine National Adaptation Research Plan (NARP). Priorities identified in the draft NARP include 1/ Which farmed species in which locations are most likely to be impacted as a result of climate change?, and for fisheries 2/ Which fishery stocks, in which locations, are most likely to change as a result of climate change? What will those changes be (e.g., in distribution, productivity) and when are they likely to appear under alternative climate change scenarios? Clearly, comprehensive and synthesised information on the sensitivities and tolerances of key species are the first steps required to address these priorities.

Objectives

1. Identify the life history stages, habitats and aquaculture systems of key species that may be impacted by climate change
2. Identify the physical and chemical parameters that may determine the potential impacts of climate change on key species
3. Conduct a preliminary risk assessment of each key species to the potential impacts of climate change
4. Highlight what additional information on the tolerances and sensitivities will be needed to develop bioclimatic envelope models for key species
Environment
PROJECT NUMBER • 2009-067
PROJECT STATUS:
COMPLETED

Tactical Research Fund: Nutrient and phytoplankton data from Storm Bay to support sustainable resource planning

This project has provided preliminary data on environmental conditions in Storm Bay that is assisting managers and marine industries to better understand effects of climate change and climate variability on fisheries and aquaculture in the region, including changing currents and primary...
ORGANISATION:
University of Tasmania (UTAS)

Tactical Research Fund: Empowering Industry R&D- refinement of fyke net modifications to improve uptake by industry

Project number: 2009-064
Project Status:
Completed
Budget expenditure: $63,573.00
Principal Investigator: Graham Milner
Organisation: Western Victorian Eel Growers Group
Project start/end date: 31 Jan 2010 - 31 Dec 2010
Contact:
FRDC

Need

Gear modifications trialled in Project 2008/017 included: (1) a rigid-frame, steel mesh cod end and (2) a collapsible, nylon mesh cod end. These reduced bycatch of platypuses in fyke nets, and increased the likelihood of survival of other non-target species, without impacting the commercial eel catch.

However, the project identified some limitations with the gear modifications:

1. Clearing the catch from the rigid-framed nets was considerably easier than from the collapsible nets. However, the bulky construction of the rigid-framed nets restricted the numbers which could be safely transported on board a commercial 4m eel punt to a maximum of 2-3 nets. Feedback from industry has identified that operators would need to be able to transport and work at least 5-10 modified nets at once to justify the use of such nets from a commercial perspective.

2. The nylon mesh nets were more flexible and could be folded and stacked flat on the floor of a boat, allowing a larger number to be carried at once. However, the main disadvantage with this design is the difficulty in clearing the catch, as these nets are cumbersome to handle.

Industry has recognised that the gear modifications improved bycatch management in the fishery. However, the Victorian Eel Fishermen's Association has highlighted that the weaknesses described above are major impediments to the adoption by industry of the modified gear.

A key recommendation of project 2008/017 therefore was the further refinement of gear modifications to maximise the likelihood of uptake of the modified gear by industry. The Project Investigators and the Victorian Eel Fishermen's Association have identified a number of opportunities for the further development of the gear to improve its efficiency, and therefore increase the likelihood of uptake by industry. Such developments need to be made for industry to take full advantage of the project findings.

Objectives

1. To identify with industry, potential user-friendly fyke net modifications
2. To trial agreed fyke net modifications in the effective reduction of protected fauna bycatch
3. To demonstrate to industry the benefits of modified gear options

Final report

ISBN: 978 0 646 57496 7
Author: Graham Milner

Pilot phase trial to quantify the extent and relevance of any deepwater puerulus settlement that may have taken place in the Western Rocklobster Fishery

Project number: 2009-063
Project Status:
Completed
Budget expenditure: $73,079.57
Principal Investigator: Dexter Davies
Organisation: Western Rock Lobster Council Inc (WRLC)
Project start/end date: 14 Jan 2010 - 14 May 2010
Contact:
FRDC

Need

The low puerulus risk assessment report (attached- see bottom of page 9) suggests a 10-35% probability that the poor settlement on inshore collectors over the last 3 years could be caused by short term environmental changes. There is a growing concern amongst industry that short term environmental changes may indeed be responsible for a shift in the pattern of settlement from shallow to the deeper water. At the recent Western Rocklobster Council Congress it was suggested that industry driven research be undertaken, in collaboration with Department of Fisheries researchers, aimed at collecting post puerulus stage rocklobster in deep water to validate or refute anecdotal reports from fishermen of this phenomenon occurring in recent years.

It is envisaged that the findings of this study will assist in addressing the uncertainty around the suite of possible explanations for the poor puerulus settlement in the WRLF over the past three years and will aid in developing management arrangements now and into the future.

Objectives

1. To establish whether a shift in post puerulus settlment is occuring from shallow to deeper water.
2. To establish a new technique for conducting future research into post puerulus settlement

Final report

ISBN: 978-0-9807845-5-8
Author: Dexter Davies

Tactical Research Fund: enhanced Murray cod recreational fisheries outcomes across the Murray-Darling Basin through improved collaboration and alignment of management and research activities

Project number: 2009-060
Project Status:
Completed
Budget expenditure: $13,000.00
Principal Investigator: Anthony Forster
Organisation: Agriculture Victoria
Project start/end date: 30 Jun 2010 - 28 Feb 2011
Contact:
FRDC

Need

Murray cod is an iconic freshwater angling species yet the species is listed as threatened (IUCN: upgraded to Critically Endangered in October 2008). It's distribution range covers the Murray-Darling Basin and, hence there is an opportunity for fisheries agencies to collaborate to develop and adopt better fisheries management practices to enhance community benefits from the fishery. Such an approach would be consistent with the Primary Industries Ministerial Council Policy commitment to collaborate nationally and use research, development and extension services more effectively and efficiently.

To achieve the above there is an need to:

1. Improve research deliver i.e. improve information flow between fisheries management and environment management agencies to avoid research duplication, break down jurisdictional silo’s (share information), improve cost effectiveness, timeliness and quality of research (peer review),

2. Align fisheries management and policy i.e. there are significant difference in fisheries management approaches between jurisdictions, e.g. stocking policy, population modelling, bag and size limits etc.,

3. Better align research directions to meet fisheries management needs,

4. Better coordinate between fisheries management agencies in dealing with illegal take for sale trade (note: declaration of Murray cod as a priority species in Victoria),

5. Address a growing division of opinion about the status of Murray cod populations between anglers, fisheries managers and environmental agencies.

A cross-jurisdictional workshop in December 2009 is proposed to bring key resource management agencies together to develop a shared vision for the Murray cod recreational fishery. The forum will also faciliate better engagement with the recreational angling represenative groups and ensure research is aligned to fisheries management objectives.

Improved collaboration will ensure research is driven by resource management objectives, reduce the risk of research duplication, drive policy and research alignment and improve the quality, effectiveness and efficiency of applied research and development.

Objectives

1. Develop a shared understanding of the issues, impediments, information gaps and opportunities to build a stronger recreational Murray cod fishery.
2. Develop an action plan to improve Murray cod recreational fisheries outcomes across the Murray-Darling Basin through partnerships between fisheries, environmental management agencies and recreational fishers.
3. Build a shared commitment by key stakeholders to develop and implement a recreational fishery management and research action plan.
Environment
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