107 results
Industry
PROJECT NUMBER • 1999-162
PROJECT STATUS:
COMPLETED

Evaluating the effectiveness of marine protected areas as a fisheries management tool

Marine Protected Areas (MPAs) are being proclaimed around the world with the stated primary purposes of enhancing fisheries stocks and/or conserving marine biodiversity. In Australia, in response to a joint State/Commonwealth agreement to establish a National Representative System of MPAs (NRSMPA)...
ORGANISATION:
University of Tasmania (UTAS)
Environment
PROJECT NUMBER • 2012-008
PROJECT STATUS:
COMPLETED

Assessing the impact of marine seismic surveys on southeast Australian scallop and lobster fisheries

The present study, undertaken by University of Tasmania’s Institute for Marine and Antarctic Studies in conjunction with Curtin University’s Centre for Marine Science and Technology, was developed to investigate the potential impact of seismic surveys on economically important fishery...
ORGANISATION:
University of Tasmania (UTAS)
Industry
PROJECT NUMBER • 2015-300
PROJECT STATUS:
COMPLETED

Social Science and Economics Research Coordination Program (SSERCP)

The SSERCP project has been successful in providing timely and relevant advice to the drafting and reviewing stages of RD&E priorities, projects and reports in order to maximise beneficial outcomes of this investment for fisheries and aquaculture. It has been successful in supporting the FRDC...
ORGANISATION:
University of Tasmania (UTAS)

SCRC: Measuring condition of lobsters to improve management of harvesting around periods of high transport mortality

Project number: 2014-726
Project Status:
Completed
Budget expenditure: $0.00
Principal Investigator: Cedric Simon
Organisation: University of Tasmania (UTAS)
Project start/end date: 9 Nov 2014 - 27 Feb 2015
Contact:
FRDC

Need

Annual losses of up to 10% of lobsters during live transport are not uncommon and have a major financial impact. The fishing industry, including processors and operators are seeking ways to avoid this mortality. As deep-water pale lobsters are more susceptible to this mortality, this project will examine their wild physiological condition in great detail and compare it to shallow-water red lobsters.

Mortality events occur mainly around the time of season openings in Mid November so this will the period targeted in this research. Price often falls sharply at this time because of the combined effect of increase in supply and damage to market reputation that occurs when impacted shipments are received. Managing the landing of poor quality lobsters has always been difficult because longer closed seasons would prevent landing of poor quality product but also harms businesses.

Ideally the problem of lobster mortality in shipment would be managed by keeping the fishery open for extended periods but only landing lobsters when their condition is acceptable. The fishery tends to do this on a crude level by discounting the price of pale lobster. However this is not ideal because it impacts the price of some catches of pale lobsters that are good condition, and also allows the shipment of some red lobsters of poor condition. Directly measuring condition is a step towards better management of this issue.

Final report

Authors: C. Simon T. Mendo B. Green & C. Gardner
Final Report • 2015-05-01 • 2.99 MB
2014-726-DLD.pdf

Summary

This project provides the first comprehensive quantitative assessment of the health, physiological and nutritional condition of brindle and red lobsters from four different fishing areas of Tasmania at the start of the 2015 fishing season. Lobsters size (carapace length), baseline concentrations of haemolymph haemocyanin and bicarbonate were shown to be useful predictors of vulnerability to transport.

This information may help improve the management of these lobsters especially if portable meters are used in the field or test kits are developed through future R&D. Recommendations to minimise mortality risk were also made which included ensuring lobsters have recovered from the ground transport stress in holding tanks for several days, minimising emersion duration and reducing temperature prior to packaging.

People
PROJECT NUMBER • 2008-306
PROJECT STATUS:
COMPLETED

Building economic capability to improve the management of marine resources in Australia

This project includes the following appendices and videos:2008-306 Appendix C Individual FRDC Student Reports.pdf2008-306 Appendix D Student publications.pdf2008-306 Appendix E Student Project Videos.pdfAnna Farmery talks about her research - [video]Peggy Schrobback talks about her...
ORGANISATION:
University of Tasmania (UTAS)
Environment
PROJECT NUMBER • 2017-082
PROJECT STATUS:
COMPLETED

Ensuring monitoring and management of bycatch in Southern Rock Lobster fisheries is best practice

Bycatch is an important issue in fisheries worldwide, with the impacts of fishing activities on non-targeted species and the wider marine environment receiving increasing public attention. Issues such as the potential wastage of resources through discarding of unwanted catch, ecological impacts on...
ORGANISATION:
University of Tasmania (UTAS)

Rock Lobster Enhancement and Aquaculture Subprogram: preliminary investigation towards ongrowing puerulus to enhance rock lobster stocks while providing animals for commercial culture

Project number: 1999-314
Project Status:
Completed
Budget expenditure: $57,064.00
Principal Investigator: Caleb Gardner
Organisation: University of Tasmania (UTAS)
Project start/end date: 29 Dec 1999 - 29 Nov 2000
Contact:
FRDC

Need

Development of a rock lobster aquaculture industry through the harvest of puerulus from the wild cannot proceed if there is a net loss of animals from the wild fishery. The concept of removing puerulus from the wild has received widespread opposition from participants in rock lobster fishing industries, and managers of the resource, as the resource is considered to be highly exploited. Rock lobster fisheries management policy in most states is specifically directed towards stock rebuilding and it is perceived that additional extraction by puerulus removal runs counter to those policies.

Current research on techniques for the extraction and on-growing of puerulus from the wild have proceeded with an assumption that puerulus extraction should be "biologically neutral". It has been proposed that "biological neutrality" can be achieved by a proportional reduction in catch of adult animals, either through a reduction in effort (eg removal of pots) or through buy-out of quota (in ITQ management). However, this mechanism for achieving biological neutrality has been criticised, as puerulus extraction is likely to occur in sheltered, heavily exploited regions - while the effort removed from the fishery may have been directed to a completely different region. In this scenario, puerulus extraction could lead to local depletion and loss of egg production, despite the concurrent reduction in effort.

The proposed project is directed to an alternative mechanism for compensating for the removal of puerulus. Reseeded animals can be released back to the same areas from which they were extracted so no localised depletion will result. Reseeding the area with animals additional to those required for biological neutrality will provide an enhancement benefit. This system has benefits to the fishing industry through enhanced yield, and also to the proposed aquaculture industry through access.

The potentially valuable on-growing industry is reliant upon the development of a mechanism for compensating for puerulus loss that does not harm the wild fishery.

Objectives

1. To develop methods to capture large numbers of 1 year old benthic juvenile rock lobsters, both for providing control animals and for monitoring survival of reseeded animals. (note that this is not puerulus collection)
2. To determine the extent of movement of reseeded and control juveniles after release, to assist in estimation of survival
3. To develop methods to assess relative survival of cultured juvenile lobsters released into a natural habitat.

Final report

Authors: Caleb Gardner David Mills Sam Ibbott Simon Wilcox and Bradley Crear
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