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Development of a spatial multi criteria decision analysis system using geo-referenced fishery-dependent data in the Tasmanian abalone fishery

Citation

Mundy, CN, Development of a spatial multi criteria decision analysis system using geo-referenced fishery-dependent data in the Tasmanian abalone fishery, 8th International Abalone Symposium, 6-11 May 2012, Hobart, Australia (2012) [Conference Extract]

Abstract

Assessments of abalone fisheries are typically based on large spatial reporting units, with imprecise data (catch, effort, location). Fishery independent data collection to determine stock status is cost prohibitive, and declining in all Australian Abalone fisheries. Capturing the changes in fisher behaviour and fleet dynamic are central to attribution of changes in CPUE signals to stock decline or, changed harvest strategy, or both. An electronic data collection and analysis system has been developed at the University of Tasmania, using GPS and depth/time data loggers to collect high-resolution, high-quality spatial location and effort data from abalone divers. This geo-referenced fishery-dependent data provides a range of quantitative, unbiased spatial performance measures that can be used in an empirical assessment process. Application of spatial Multi Criteria Decision Analysis provides an objective framework for assessing the performance of abalone or any dive-fishery, with the flexibility of operating at any desired spatial scale. Pilot data from the Tasmanian Abalone fishery are presented here to illustrate the potential application of MCDA approaches for fishery assessment.

Item Details

Item Type:Conference Extract
Keywords:abalone, MCDA, fisheries management, fine-scale assessment
Research Division:Agricultural and Veterinary Sciences
Research Group:Fisheries Sciences
Research Field:Fisheries Management
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - Wild Caught
Objective Field:Wild Caught Edible Molluscs
Author:Mundy, CN (Dr Craig Mundy)
ID Code:101844
Year Published:2012
Deposited By:IMAS Research and Education Centre
Deposited On:2015-07-13
Last Modified:2015-07-16
Downloads:0

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