Aboriginal fisheries in New South Wales: determining catch, cultural significance of species and traditional fishing knowledge needs
Sustaining productivity of tropical red snappers using new monitoring and reference points
Taking female mud crabs (Scylla serrata): assessment of risks and benefits
Over two decades ago Dr Burke Hill (in the FIRTA report on Queensland's Mud Crab Fishery) recommended a trial period allowing the take of females provided there was a monitoring programme in place to evaluate the result. Such a trial has not yet been implemented, and while much excellent work on mud crabs has been done in recent years, it is not sufficient to answer the 'big-picture' question of sustainability.
Information based on empirical data is needed to inform the Mud Crab Fishery Management Plan development process. At present there are many points of view about the relevance and need for the SSHP, but there is little hard evidence.
For some years industry has argued for a relaxation of the legislation, bringing it into line with that in NSW and NT. However without scientific evidence management is reluctant to change the status quo, and in turn FRDC has been unwilling to fund the necessary work because of a perception that the recommendations may not implemented. DPI&F is now actively seeking ways to improve the profitability of the State’s fishing industry, and a relaxation of the SSHP has been endorsed by all parties as one way to achieve this aim.
There are two primary issues that need addressing in relation to changing the SSHP – sustainability and profitability. The risks associated with both need to be determined objectively before a decision can be made to progress any investigation into the effects of the policy.
The project aligns closely with the DPI&F joint priorities of industry profitability and sustainability, and directly addresses QFIRAC Key R&D Topic #3 - A critical evaluation of management strategies to optimise the soci-economic value of portunid crab fisheries, particularly in terms of the potential value and/or ecological impact of altering the current single-sex harvest policy in Queensland.
Final report
Ecological risk assessment for effects of fishing on habitats and communities
Mapping the distribution and movement of gulper sharks, and developing a non-extractive monitoring technique, to mitigate the risk to the species within a multi-sector fishery region off southern and eastern Australia
Tactical Research Fund: industry monitoring and sampling of Gulper shark catches in the SESSF
Information on gulper shark species in the SESSF is generally poor. Difficulty in the identification of this group of dogsharks down to the species level by Industry has compromised the value of commercial catch and effort data for gulper sharks. Their low productivity, combined with poor information has the potential to make gulper sharks the ‘Achilles’ Heel’ of SESSF operators, with the possibility of endangered species listing to significantly impact on upper slope fishing by all sectors.
In targeted surveys where commercial vessels have carried scientific observers skilled in the identification of gulper sharks, larger numbers of Harrisons, Southern and Endeavour dogfish have been identified in the catch. This reporting improves the information that is available on their distribution and abundance. With appropriate training in identification and sampling, Industry members could provide potentially crucial information to inform the assessment of the threatened species nomination for these species. Without such information, the assessment could largely rely on two ‘snapshot estimates’ from research surveys conducted by the Fisheries Research Vessel ‘Kapala’ off NSW, the last of which took place during the mid 1990s. Given the impending assessment completion date (30th September 2010), there is an urgent need to increase awareness and identification skill of Industry members to collect meaningful catch and effort data on gulper shark species.