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Use of management strategy comparison scatterplots to identify clusters of high-performing strategies
Citation
McGarvey, R and Burch, P and Feenstra, JE, Use of management strategy comparison scatterplots to identify clusters of high-performing strategies, Fisheries Management and Ecology, 18, (5) pp. 349-359. ISSN 0969-997X (2011) [Refereed Article]
Copyright Statement
Copyright 2011 Blackwell Publishing Ltd.
DOI: doi:10.1111/j.1365-2400.2011.00787.x
Abstract
A management simulation model was developed to test quota, trip limits and reduced longline hook
numbers as alternatives to yearly seasonal (November) closure in South Australian snapper fisheries. Population
dynamics equations and maximum-likelihood parameter estimates were supplied by an age- and length-based
stock assessment model. The relative performance of tested management strategies was quantified by comparing
change in egg production vs change in average catch, to optimise the trade-off between reproductive sustainability
and catch foregone. Clusters of better-performing strategies were visually identifiable in management strategy
scatterplots. These scatterplots display percentage change from the status quo in egg-production-per-femalerecruit
(y-axis) vs percentage change in catch-per-recruit (x-axis). Evaluated strategies fell into three distinct
performance clusters. The best performing strategy extended November closure by 2 weeks. Strategies that
retained the November closure performed uniformly better than those that removed it. Further simulation showed
this resulted from non-closure strategies regulating only the commercial sector.
Item Details
Item Type: | Refereed Article |
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Keywords: | daily trip limits, fishery management strategy simulation, management strategy performance clusters, management strategy scatterplots, snapper, temporal fishery closure |
Research Division: | Agricultural, Veterinary and Food Sciences |
Research Group: | Fisheries sciences |
Research Field: | Aquaculture and fisheries stock assessment |
Objective Division: | Animal Production and Animal Primary Products |
Objective Group: | Fisheries - wild caught |
Objective Field: | Wild caught fin fish (excl. tuna) |
UTAS Author: | Burch, P (Dr Paul Burch) |
ID Code: | 92982 |
Year Published: | 2011 |
Web of Science® Times Cited: | 3 |
Deposited By: | Sustainable Marine Research Collaboration |
Deposited On: | 2014-07-03 |
Last Modified: | 2014-12-18 |
Downloads: | 0 |
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