Reply to Andersen et al.(2016) "Assumptions behind size-based ecosystem models are realistic"

Froese, Rainer, Walters, Carl, Pauly, Daniel, Winker, Henning, Weyl, Olaf L. F., Demirel, Nazli, Tsikliras, Athanassios C. and Holt, Sidney J. (2016) Reply to Andersen et al.(2016) "Assumptions behind size-based ecosystem models are realistic" ICES Journal of Marine Science, 73 (6). pp. 1656-1658. DOI 10.1093/icesjms/fsv273.

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In a recent publication (Froese et al., ICES Journal of Marine Science; doi:10.1093/icesjms/fsv122), we presented a critique of the balanced harvesting (BH) approach to fishing. A short section dealt with the size-spectrum models used to justify BH, wherein we pointed out the lack of realism of these models, which mostly represented ecosystems as consisting of a single cannibalistic species. Andersen et al. (ICES Journal of Marine Science; doi:10.1093/icesjms/fsv211) commented on our paper and suggested that we criticized size-spectrum models in general and that we supposedly made several erroneous statements. We stress that we only referred to the size-spectrum models that we cited, and we respond to each supposedly erroneous statement. We still believe that the size-spectrum models used to justify BH were highly unrealistic and not suitable for evaluating real-world fishing strategies. We agree with Andersen et al. that BH is unlikely to be a useful guiding principle for ecosystem-based fisheries management, for many reasons. The use of unrealistic models is one of them.

Document Type: Article
Additional Information: WOS:000379358600022
Keywords: balanced harvesting, ecosystem-based fisheries management, size-spectrum models, unrealistic model assumptions
Research affiliation: OceanRep > GEOMAR > FB3 Marine Ecology > FB3-EV Evolutionary Ecology of Marine Fishes
Refereed: Yes
DOI etc.: 10.1093/icesjms/fsv273
ISSN: 1054-3139
Date Deposited: 02 Feb 2016 07:47
Last Modified: 19 Dec 2017 12:46

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