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Assumptions behind size-based ecosystem models are realistic
journal contribution
posted on 2023-05-22, 00:05 authored by Andersen, KH, Julia BlanchardJulia Blanchard, Fulton, EA, Gislason, H, Jacobsen, NS, van Kooten, TA recent publication about balanced harvesting (Froese et al., ICES Journal of Marine Science; doi:10.1093/icesjms/fsv122) contains several erroneous statements about size-spectrum models. We refute the statements by showing that the assumptions pertaining to size-spectrum models discussed by Froese et al. are realistic and consistent. We further show that the assumption about density-dependence being described by a stock recruitment relationship is responsible for determining whether a peak in the cohort biomass of a population occurs late or early in life. Finally, we argue that there is indeed a constructive role for a wide suite of ecosystem models to evaluate fishing strategies in an ecosystem context.
History
Publication title
ICES Journal of Marine ScienceVolume
73Issue
6Pagination
1651-1655ISSN
1054-3139Department/School
Institute for Marine and Antarctic StudiesPublisher
Academic Press Ltd Elsevier Science LtdPlace of publication
24-28 Oval Rd, London, England, Nw1 7DxRights statement
Copyright 2016 International Council for the Exploration of the SeaRepository Status
- Restricted