Regional trade-offs from multi-species maximum sustainable yield (MMSY) management options.
Voss, Rüdiger, Quaas, Martin, Schmidt, Jörn and Hoffmann, Julia
(2014)
Regional trade-offs from multi-species maximum sustainable yield (MMSY) management options.
Marine Ecology Progress Series, 498
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pp. 1-12.
DOI 10.3354/meps10639 .
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m498p001.pdf - Published Version Available under License Creative Commons: Attribution 4.0. Download (1654Kb) | Preview |
Abstract
The maximum sustainable yield (MSY) is, theoretically, the largest yield that can be taken from a single species' stock over an indefinite period. Formulation of strategic MSY management goals is, however, complicated by the need to move beyond biological single-species considerations. Interactions among species necessitate multispecies (MMSY) definitions, incorporating ecological, economic and social considerations. We developed an ecological-economic model of the Baltic Sea, simulating stock dynamics of interacting populations of cod Gadus morhua, herring Clupea harengus and sprat Sprattus sprattus. We investigated a set of different strategic management options. These likely, yet non-formalized experiments evaluate and illuminate alternative regional trade-offs. We computed multi-species maximum economic yield (MMEY) under certain eco-logical constraints, with profits as a performance indicator. An unconstrained profit-maximizing management strategy would lead to a highly profitable cod fishery in a cod-dominated ecosystem. Concurrent sprat stock size (and profits) would be low, falling below ecological precautionary reference points. Consideration of ecological constraints on minimum stock sizes leaves a range of strategies, including the change from a cod-dominated to a more clupeid-dominated system. The regional distribution of profits depends on the management. Therefore, adjustment payments or other forms of compensation might be needed to achieve a concordant agreement on strategic multi-species management goals.
Document Type: | Article |
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Research affiliation: | Kiel University > Kiel Marine Science Kiel University OceanRep > The Future Ocean - Cluster of Excellence OceanRep > The Future Ocean - Cluster of Excellence > FO-R03 OceanRep > The Future Ocean - Cluster of Excellence > FO-R02 OceanRep > The Future Ocean - Cluster of Excellence > FO-R06 UNSPECIFIED OceanRep > The Future Ocean - Cluster of Excellence > FO-R01 |
Refereed: | Yes |
Open Access Journal?: | No |
DOI etc.: | 10.3354/meps10639 |
ISSN: | 0171-8630 |
Projects: | Future Ocean, MYFISH |
Date Deposited: | 30 Mar 2015 12:50 |
Last Modified: | 02 Feb 2018 11:50 |
URI: | http://oceanrep.geomar.de/id/eprint/28285 |
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