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Preliminary capacity utilization analysis of the WCPO purse seine fleet using Data Envelopment Analysis (DEA)

Citation

Tidd, A and Pilling, G, Preliminary capacity utilization analysis of the WCPO purse seine fleet using Data Envelopment Analysis (DEA), Western and Central Pacific Fisheries Commission 12th Regular Session Summary Report, 03-11 August 2016, Bali, Indonesia, pp. 1-19. (2016) [Non Refereed Conference Paper]


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Abstract

WCPFC has noted concern over the size of WCPO fleets relative to available fishing opportunities. An example process to identify excess-capacity was presented to SC11. In this paper a more sophisticated analysis is performed to identify relationships between vessel fishing capacity and fishing effort for the WCPO purse seine fleet. First, Data Envelopment Analysis (DEA) is applied to identify potential fleet over capacity. This approach compares each vessel against others to evaluate annual output levels (total tuna catch) relative to the potential output if all vessels performed optimally (the ratio being the level of capacity utilisation) for given inputs (fixed input being vessel age, variable inputs being days fished and number of sets). Second, the potential numbers of vessels within optimally performing fleets are estimated based upon recent effort levels and levels consistent with effort limits in the WCPO, and compared to actual fleet sizes. Finally, to identify factors affecting vessel capacity utilisation and suggest appropriate metrics for fishing capacity, estimates are regressed against vessel characteristics and external factors (e.g. fuel prices).

Item Details

Item Type:Non Refereed Conference Paper
Keywords:WCPO purse seine fleet, Data Envelopment Analysis
Research Division:Agricultural and Veterinary Sciences
Research Group:Fisheries Sciences
Research Field:Fisheries Management
Objective Division:Environment
Objective Group:Ecosystem Assessment and Management
Objective Field:Ecosystem Assessment and Management of Marine Environments
Author:Tidd, A (Dr Alexander Tidd)
ID Code:116265
Year Published:2016
Deposited By:Centre for Fisheries and Aquaculture
Deposited On:2017-05-04
Last Modified:2017-05-04
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