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Assumptions behind size-based ecosystem models are realistic


Andersen, KH and Blanchard, JL and Fulton, EA and Gislason, H and Jacobsen, NS and van Kooten, T, Assumptions behind size-based ecosystem models are realistic, ICES Journal of Marine Science, 73, (6) pp. 1651-1655. ISSN 1054-3139 (2016) [Letter or Note in Journal]

Copyright Statement

Copyright 2016 International Council for the Exploration of the Sea

DOI: doi:10.1093/icesjms/fsv211


A 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.

Item Details

Item Type:Letter or Note in Journal
Keywords:marine ecosystem models, balanced harvesting
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Community ecology (excl. invasive species ecology)
Objective Division:Environmental Management
Objective Group:Management of Antarctic and Southern Ocean environments
Objective Field:Assessment and management of Antarctic and Southern Ocean ecosystems
UTAS Author:Blanchard, JL (Dr Julia Blanchard)
ID Code:106278
Year Published:2016
Web of Science® Times Cited:22
Deposited By:Sustainable Marine Research Collaboration
Deposited On:2016-02-04
Last Modified:2016-07-27

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