This project is an industry lead initiative aimed at investigating the potential for alternative pot designs to increase catch efficiency. All Southern Rock Lobster fisheries within Australia are now managed under total allowable commercial catches (TACCs). As a consequence, these fisheries are not regulated by controlling capture efficiency or fishing effort, so improving the catch efficiency of commercial fishing operations offers an opportunity to substantially improve net economic return with minimal risk of compromising management effectiveness. Currently in South Australia, Southern Rock Lobster are captured with pots designed in line with State fishing gear regulations. However, alternative pot designs may have the potential to increase fleet efficiency through increased catch rates, thereby lowering overall operating costs. In order to assess the relative capture efficiency of alternative pot designs and any impacts to bycatch, catches per potlift of (i) legal size lobster (ii) undersized lobster (iii) spawning lobster; and (iv) bycatch need to be determined. In addition, if alternative pot designs are adopted, given the use of legal-size catch rate as the principal input to harvest strategy decision rules, legal size catch rate estimated from the alternative pots will need to be calibrated with that estimated from pots currently used in the fishery. If relative capture efficiency varies with overall catch rate, this will need to be estimated and subsequently incorporated, into new harvest strategy decision rules.
Project number:
2016-258
Project Status:
Completed
Budget expenditure:
$253,399.00
Principal Investigator:
Lachlan McLeay
Organisation:
University of Adelaide
Project start/end date:
31 Jul 2017
-
30 May 2020
Contact:
FRDC
SPECIES
1. Assess the catch efficiency of alternative pot designs for capturing Southern Rock Lobster through CPUE indices of (i) legal sized lobsters (ii) undersized lobsters (iii) spawning (ovigerous) female lobsters and (iv) primary bycatch species.
2. For one alternative pot design proposed by industry, develop and apply methods to calibrate alternative pot design raw CPUE for use in harvest strategy decision rules.
ISBN:
978-1-876007-46-1
Authors:
McLeay
L.
Mark
K.
McGarvey
R. and Linnane
A.
PROJECT NUMBER
•
2022-071
PROJECT STATUS:
CURRENT
Assessing the efficiency of alternative bait options for the Southern Rock Lobster (Jasus edwardsii) fishery
Commercial in confidence
ORGANISATION:
Flinders University
PROJECT NUMBER
•
2019-183
PROJECT STATUS:
COMPLETED
Options to effectively monitor and regulate recreational catch in the Tasmanian rock lobster fishery
1. In-depth review of existing management systems to monitor and constrain recreational harvest
ORGANISATION:
University of Tasmania
PROJECT NUMBER
•
2018-016
PROJECT STATUS:
COMPLETED
Improving data on Aboriginal and Torres Strait Islander marine resource use to inform decision-making
1. Conduct national workshops to identify appropriate methodologies for collecting spatially and temporally resolved catch and effort information for a range of indigenous fisheries.
ORGANISATION:
Department of Primary Industries and Regions South Australia (PIRSA)