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Ocean zoning within a sparing versus sharing framework

Citation

McGowan, J and Bode, M and Holden, MH and Davis, K and Krueck, NC and Beger, M and Yates, KL and Possingham, HP, Ocean zoning within a sparing versus sharing framework, Theoretical Ecology, 11 pp. 245-254. ISSN 1874-1738 (2018) [Refereed Article]


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Copyright Statement

Copyright 2018 the authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/

DOI: doi:10.1007/s12080-017-0364-x

Abstract

The land-sparing versus land-sharing debate centers around how different intensities of habitat use can be coordinated to satisfy competing demands for biodiversity persistence and food production in agricultural landscapes. We apply the broad concepts from this debate to the sea and propose it as a framework to informmarine zoning based on three possible management strategies, establishing: no-take marine reserves, regulated fishing zones, and unregulated open-access areas. We develop a general model that maximizes standing fish biomass, given a fixed management budget while maintaining a minimum harvest level. We find that when management budgets are small, sea-sparing is the optimal management strategy because for all parameters tested, reserves are more cost-effective at increasing standing biomass than traditional fisheries management. For larger budgets, the optimal strategy switches to sea-sharing because, at a certain point, further investing to grow the no-take marine reserves reduces catch below the minimum harvest constraint. Our intention is to illustrate how general rules of thumb derived from plausible, single-purpose models can help guide marine protected area policy under our novel sparing and sharing framework. This work is the beginning of a basic theory for optimal zoning allocations and should be considered complementary to the more specific spatial planning literature for marine reserve as nations expand their marine protected area estates.

Item Details

Item Type:Refereed Article
Keywords:sparing vs sharing, marine protected areas, fisheries management, marine zoning, open-access fisheries, marine policy
Research Division:Environmental Sciences
Research Group:Environmental management
Research Field:Conservation and biodiversity
Objective Division:Environmental Management
Objective Group:Coastal and estuarine systems and management
Objective Field:Coastal or estuarine biodiversity
UTAS Author:Krueck, NC (Dr Nils Krueck)
ID Code:142919
Year Published:2018
Web of Science® Times Cited:4
Deposited By:Sustainable Marine Research Collaboration
Deposited On:2021-02-16
Last Modified:2021-04-19
Downloads:0

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