The proposed project responds to QFRAB Research Priority IV – Improve the relevance and quality of the data collected to underpin effective science based management of Queensland fisheries.

Traditionally fisheries data moved in a single direction, with fishers collecting data that are used by researchers and managers to manage fishers’ activities within sustainable long-term goals. Historically this was a sound system that informed the management of fisheries and enabled the development of suitable management objectives and tools (input and output controls).

A paradigm shift has occurred with contemporary fisheries data being utilised for multiple purposes other than QDAFF core business management and includes conservation objectives (EPBC Act), marine spatial planning, third party accreditation's, impact assessments and resource allocation. Not surprisingly, the quality and relevance of data collected is increasingly being questioned by all stakeholders. Given this notable shift in the interest and demands on fisheries data, it is timely that new and novel data and data collection methods are investigated, and existing systems are reviewed and improved to better meet contemporary needs. Further, increasing distrust of fisheries data by stakeholders is a significant hurdle in monitoring, assessing and managing fisheries. Concerns about the accuracy of commercial logbook data and catch estimates derived from recreational diary and phone surveys persist. Options for empowering all fishery stakeholders in the design of collection methods, data ownership and utility of data beyond core business requirements need to be explored to improve data quality and stewardship, and confidence in assessments/analyses that utilise these data.

Appropriate monitoring strategies and harvest control rules are needed to ensure sustainability and
maximum economic benefit from the coral trout stocks in the Queensland Coral Reef Fin fish Fishery
(CRFFF). This is not an easy accomplishment in a fishery that is as spatially complex as the CRFFF,
and so in order to determine whether monitoring programs and harvest control rules are worth
implementing, it is better to try several techniques on a virtual fishery before doing so in reality. This
can be done by testing alternative procedures in a Management Strategy Evaluation (MSE) framework.
The project will test in an MSE framework the effectiveness of:

1. several potential monitoring and sampling regimes of the coral trout stock, including the existing
Long Term Monitoring Program (LTMP) surveys,

2. different ways of analysing the data collected from a monitoring program, and

3. candidate harvest control rules that translate the perceived state of the fishery into a TAC.

Comparisons of alternative monitoring, analysis and harvest control rules will help DEEDI assess their
cost effectiveness. Lastly, since quota trading was introduced, industry has stressed the fact that the
economic conditions of the fishery have changed substantially, and so an update of economic data is
needed urgently for the evaluation of the above management strategies to be relevant and useful.

One of the major research priorities of QFIRAC, REEFMAC, QFS, GBRMPA, and other fisheries' stakeholders of the GBR concerns the need to develop innovative approaches for determining the sustainability of the fisheries for the exploited reef fish species, particularly the major target species of the GBR Coral Reef Fin Fish Fishery, common coral trout and red throat emperor. This need has become even more pronounced with the recent release of the management plan for the fishery, which is largely dependent upon an Individual Transferable catch Quota (ITQ) system and the impending GBRMPA Representative Areas Program (RAP). A model involving complex effort dynamics associated with an extensive system of "no-take" areas and a significant recreational harvest (e.g., unlike the SE Trawl Fishery) that provides a framework for setting appropriate Total Allowable Catches (TACs) and evaluating their impacts has yet to be developed.

This proposal, therefore, arose in response to major concerns for the sustainability of the GBR Coral Reef Fin Fish Fishery. It addresses directly QFIRAC's key R&D priorities in sustainability assessments by developing innovative assessment methodologies, sustainability indicators for target species in commercial fisheries, and using a Management Strategy Evaluation (MSE) approach. The "standard" approach to providing management advice for fisheries managed using ITQs involves, for each target species, fitting a population dynamics model to data collected for large geographic areas and calculating catch limits according to pre-specific decision rules (such as F0.1). However, this approach is likely to fail to achieve the management objectives for the GBR Coral Reef Fin Fish Fishery because it ignores spatial heterogeneity in population structure and the multi-species and multi-sector nature of the fishery. Also, the data typically required to apply these methods is not available for the GBR Coral Reef Fin Fish Fishery. In addition, little is known about the bioeconomic impacts and sophisticated effort dynamics associated with an ITQ managed multi-species, multi-sector fishery such as the GBR Coral Reef Fin Fish Fishery.

Consequently, we propose to extend the MSE framework developed as part of the CRC Reef Effects of Line Fishing (ELF) Project and other related FRDC funded projects (1997-124, 1998-131, 2001-020). Results from this project will inform stakeholders and decision makers about the bioeconomic trade-offs associated with a variety of alternative rules for setting TACs. This is exactly the type of information required as the basis for the selection of monitoring strategies and decision rules. This project, therefore, will provide a management tool by which appropriate TACs can be evaluated given alternate harvest strategies related to effort displacement caused by the RAP and the significant recreational harvest.