283 results

The use of BRUVs as a tool for assessing marine fisheries and ecosystems: A review of the hurdles and potential

Project number: 2010-002
Project Status:
Completed
Budget expenditure: $30,000.00
Principal Investigator: Euan S. Harvey
Organisation: University of Western Australia (UWA)
Project start/end date: 14 Aug 2010 - 29 Nov 2010
Contact:
FRDC

Need

National reviews of Fisheries R&D needs (FRDC95/055) have identified the need for non-extractive, fishery-independent sampling and stock assessment techniques which are cost-effective, repeatable and robust across and range of habitats and depths. These methods are becoming increasingly important as Australian fisheries face the challenge of addressing ecosystem based fisheries management and climate change. A national workshop on the use of video for sensing the size and abundance of target and non-target fauna in Australian fisheries (FRDC2000/187) highlighted the potential for Baited Remote Underwater Video systems (BRUVs). After a decade, there has been wide adoption of this technique. However, differences in protocols for deployment, analysis and interpretation make spatial and temporal
comparisons of data difficult.

There is the need to develop a robust set of nationally agreed upon protocols to ensure that users are appropriately informed and trained through a comprehensive extension and capacity building program that also identifies key unresolved technical issues.

With the increased testing and use of BRUVs a number of independent developments have occurred. Future technological advances and more detailed statistical and modelling approaches will result in the BRUVs data being more useful for ecosystem assessment and management. Maximising the potential that these advances will provide to Australian fisheries will be achieved by a co-ordinated and
collaborative research strategy. We propose to host a two day workshop to critically evaluate the use of BRUVs as a data collection tool
for scalefishes and sharks. The workshop will identify the strengths, limitations and identify potential solutions.

Objectives

1. To critically evaluate the strengths and limitations of data collected with BRUVS for detecting changes in the relative abundance, length frequency and community composition of scalefishes and sharks.
2. To identify potential solutions to limitations.
3. To develop a nationally agreed to protocol for the deployment of BRUVs and the analysis of the resulting imagery.

Predicting the impact of hook decrements on the distribution of fishing effort in the ETBF

Project number: 2008-028
Project Status:
Completed
Budget expenditure: $130,865.00
Principal Investigator: Chris Wilcox
Organisation: CSIRO Oceans and Atmosphere Hobart
Project start/end date: 29 Sep 2008 - 30 Jun 2009
Contact:
FRDC

Need

AFMA recently announced the completion of amendments to the ETBF management plan, and the call for applications for statutory fishing rights. These fishing rights, and the effort allocation of effort that accompanying them, will be managed using Spatial Area Factors (SAFs). SAFs are multipliers that translate the actual amount of fishing effort expended, e.g. in thousands of hooks, into the amount of effort units that are taken off an SFR holders allocation. The intent of these SAFs is to allow spatial management of the fishery, by providing incentives for fishing in areas with low SAFs and disincentives in areas with high SAFs. If used effectively, these SAFs may provide a mechanism for reducing many of the management conflicts in the fishery, such as catch of seabirds and turtles, local depletion of target stocks, and under-exploitation of high seas areas. However, in order to effectively apply the SAFs, AFMA will need to be able to determine the motivational effect of the SAF on fishermen's location choices. Moreover, the SAFs will affect the total allowable effort (TAE) that is actually realized in the fishery in a given year, so not only will they affect individual fishers, they will also affect the performance of the fishery as a whole. It will be critical to be able to make some predictions about how the realized TAE will change, based on the structure of the SAFs in order to weigh alterative management options prior to implementing them. Finally, a move from TAEs to TACs and ITQs will substantially affect the structure of the fishery. Although we will not directly address those changes in this proposal, the behavioral models developed in this project would be rapidly adaptable to a TAC/ITQ system, and could form a basis for informing management as to the potential effects.

Objectives

1. Develop a statistical (multivariate logit) model to predict the distribution of fishing effort in the ETBF
2. Develop a process (a state-dependent behavioral) model of effort allocation for an input managed fishery with individual effort allocations
3. Evaluate the impact of a series of SAF scenarios on the distribution of fishing effort in the ETBF using statistical and state-dependent behavioral models
Adoption
PROJECT NUMBER • 2001-313.80
PROJECT STATUS:
COMPLETED

Economic Evaluation of FRDC Funding Submissions of 2001-series projects - Evaluation of Selected FRDC Research Impacting the Environment

eSYS Development and BDA Group were contracted by the FRDC to carry out an economic evaluation of the 2001/200-240 series projects submitted for funding consideration. Benefit cost analysis was used to estimate the expected economic pay off on all submitted projects - as measured by a project's net...
ORGANISATION:
eSYS Development Australia
Industry
PROJECT NUMBER • 2001-225
PROJECT STATUS:
COMPLETED

Development of sponge (Spongia Spp.) farming as a viable commercial enterprise for remote Aboriginal communities

Sponges have been employed for thousands of years for a wide variety of purposes, most commonly for basic hygiene (bath/toilet sponges), padding (historically under armour and saddles) and in certain manufacturing processes. World production from the wild harvest has, however, declined significantly...
ORGANISATION:
Charles Darwin University (CDU)

Impact of gillnet fishing on inshore temperate reef fishes, with particular reference to banded morwong

Project number: 1995-145
Project Status:
Completed
Budget expenditure: $145,513.00
Principal Investigator: Jeremy Lyle
Organisation: University of Tasmania (UTAS)
Project start/end date: 29 Dec 1995 - 30 Jul 1999
Contact:
FRDC

Objectives

1. Describe life history and population parameters of the key commercial reef fish species.
2. Determine gillnet mesh selectivity for commercial (and by-catch) reef species.
3. Determine the size/age composition of banded morwong populations at different sites off the east coast of Tasmania with particular attention to the impact of differing levels of fishing pressure.
4. Determine patterns of movement for banded morwong, wrasse and bastard trumpeter.
5. Assess the level of by-catch and discarding in the inshore gillnet fishery.
6. Conduct yield per recruit analyses to determine appropriate legal size limits.
Environment
PROJECT NUMBER • 2016-059
PROJECT STATUS:
COMPLETED

Guidance on Adaptation of Commonwealth Fisheries management to climate change

This project is comprised of four key components: (i) FRDC Final Report (Appendices 3-5 are provided as standalone documents); (ii) Adaptation Handbook (designed to help fisheries managers, operators – and anyone else helping to support fisheries – step through a risk assessment and...
ORGANISATION:
Australian Fisheries Management Authority (AFMA)
Adoption
PROJECT NUMBER • 2018-077
PROJECT STATUS:
COMPLETED

Implementation workshop for the effective adoption of the outcomes from the SESSF Declining Indicators project

The key outcome of this project is the implementation plan at Appendix 1 which provides a comprehensive, prioritised list of actions for the SESSF as it transitions to a new harvest strategy framework. The implementation plan also provides a framework for ongoing governance and reporting to ensure...
ORGANISATION:
Australian Fisheries Management Authority (AFMA)
Industry
PROJECT NUMBER • 2017-057
PROJECT STATUS:
COMPLETED

Stock predictions and spatial population indicators for Australia's east coast saucer scallop fishery

This project undertook analyses to understand the role of overfishing and the environment on saucer scallops. The analyses indicated reduced numbers of spawning scallops. Historical levels of fishing and environmental influences such as from increased sea surface temperatures (SST) have amplified...
ORGANISATION:
Department of Primary Industries (QLD)
View Filter

Species

Organisation