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ICES Journal of Marine Science: Journal du Conseil Advance Access published online on June 23, 2009
ICES Journal of Marine Science: Journal du Conseil, doi:10.1093/icesjms/fsp161
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© 2009 International Council for the Exploration of the Sea. Published by Oxford Journals. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

How community ecology links natural mortality, growth, and production of fish populations

K. H. Andersen1, K. D. Farnsworth2, M. Pedersen3, H. Gislason1 and J. E. Beyer1

1 National Institute of Aquatic Resources, Technical University of Denmark, Charlottenlund Slot, Jægersborg Allé 1, DK-2920 Charlottenlund, Denmark
2 School of Biological Science, Queens University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
3 Department of Theoretical Ecology, Lund University, Ecology Building, SE-223 62 Lund, Sweden

Correspondence to K. H. Andersen: tel: +45 3396 3400; fax: +45 3396 3333; e-mail: kha{at}aqua.dtu.dk.

Andersen, K. H., Farnsworth, K. D., Pedersen, M., Gislason, H., and Beyer, J. E. 2009. How community ecology links natural mortality, growth, and production of fish populations. – ICES Journal of Marine Science, 66: 000–000.

Size-spectrum theory is used to show that (i) predation mortality is a decreasing function of individual size and proportional to the consumption rate of predators; (ii) adult natural mortality M is proportional to the von Bertalanffy growth constant K; and (iii) productivity rate P/B is proportional to the asymptotic weight W{infty}–1/3. The constants of proportionality are specified using individual level parameters related to physiology or prey encounter. The derivations demonstrate how traditional fisheries theory can be connected to community ecology. Implications for the use of models for ecosystem-based fisheries management are discussed.

Keywords: life-history invariants, size spectrum

Received 2 October 2008; accepted 28 April 2009.


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