Assessing Social - Ecological Trade-Offs to Advance Ecosystem-Based Fisheries Management.

Voss, Rüdiger, Quaas, Martin, Schmidt, Jörn, Tahvonen, Olli, Lindegren, Martin and Moellmann, Christian (2014) Assessing Social - Ecological Trade-Offs to Advance Ecosystem-Based Fisheries Management. Open Access PLoS ONE, 9 (9). DOI 10.1371/journal.pone.0107811.

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Abstract

Modern resource management faces trade-offs in the provision of various ecosystem goods and services to humanity. For fisheries management to develop into an ecosystem-based approach, the goal is not only to maximize economic profits, but to consider equally important conservation and social equity goals. We introduce such a triple-bottom line approach to the management of multi-species fisheries using the Baltic Sea as a case study. We apply a coupled ecological-economic optimization model to address the actual fisheries management challenge of trading-off the recovery of collapsed cod stocks versus the health of ecologically important forage fish populations. Management strategies based on profit maximization would rebuild the cod stock to high levels but may cause the risk of stock collapse for forage species with low market value, such as Baltic sprat (Fig. 1A). Economically efficient conservation efforts to protect sprat would be borne almost exclusively by the forage fishery as sprat fishing effort and profits would strongly be reduced. Unless compensation is paid, this would challenge equity between fishing sectors (Fig. 1B). Optimizing equity while respecting sprat biomass precautionary levels would reduce potential profits of the overall Baltic fishery, but may offer an acceptable balance between overall profits, species conservation and social equity (Fig. 1C). Our case study shows a practical example of how an ecosystem-based fisheries management will be able to offer society options to solve common conflicts between different resource uses. Adding equity considerations to the traditional trade-off between economy and ecology will greatly enhance credibility and hence compliance to management decisions, a further footstep towards healthy fish stocks and sustainable fisheries in the world ocean.

Document Type: Article
Research affiliation: OceanRep > The Future Ocean - Cluster of Excellence > FO-R03
OceanRep > The Future Ocean - Cluster of Excellence > FO-R06
OceanRep > The Future Ocean - Cluster of Excellence > FO-R02
Kiel University > Kiel Marine Science
Kiel University
OceanRep > The Future Ocean - Cluster of Excellence
OceanRep > The Future Ocean - Cluster of Excellence > FO-R01
Refereed: Yes
Open Access Journal?: Yes
DOI etc.: 10.1371/journal.pone.0107811
ISSN: 1932-6203
Projects: Future Ocean
Date Deposited: 30 Mar 2015 12:50
Last Modified: 14 Jul 2017 13:15
URI: http://oceanrep.geomar.de/id/eprint/28286

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