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

Ken H. Andersen | Zendy; Keith D. Farnsworth | Zendy; M.Ø. Pedersen | Zendy; Henrik Gislason | Zendy; Jan E. Beyer | Zendy

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

Author(s) -

Ken H. Andersen,

Keith D. Farnsworth,

M.Ø. Pedersen,

Henrik Gislason,

Jan E. Beyer

Publication year - 2009

Publication title -

ices journal of marine science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.348

H-Index - 117

eISSN - 1095-9289

pISSN - 1054-3139

DOI - 10.1093/icesjms/fsp161

Subject(s) - predation , ecology , fish <actinopterygii> , productivity , ecosystem , growth rate , functional ecology , production (economics) , biology , fishery , mathematics , economics , geometry , macroeconomics

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: 1978–1984. 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∞−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.

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