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Archimer
Publication Type
Publication
Publication date
2004
Language
English
Full Text
Copyright:
2003 Elsevier Ltd. All rights reserved
Author(s)
Benoit Eric2, Rochet Marie-Joelle1
Affiliation(s):
1 : IFREMER, Lab MAERHA, F-44311 Nantes 03, France.
2 : Univ Rochelle, Math Lab, F-17042 La Rochelle, France.
2 : Univ Rochelle, Math Lab, F-17042 La Rochelle, France.
Source:
Journal of Theoretical Biology (0022-5193) (Elsevier), 2004 , Vol. 226 , N. 1 , P. 9-21
WOS© Times Cited
44
Subject(s)
Ecology, Mathematics-Computer Science, Biology
Keyword(s)
Predation, Mortality, Growth, Biomass size spectrum, Allometry
Abstract
A new time-dependent continuous model of biomass size spectra is developed. In this model, predation is the single process governing the energy flow in the ecosystem, as it causes both growth and mortality. The ratio of predator to prey is assumed to be distributed: predators may feed on a range of prey sizes. Under these assumptions, it is shown that linear size spectra are stationary solutions of the model. Exploited fish communities are simulated by adding fishing mortality to the model: it is found that realistic fishing should affect the curvature and stability of the size spectrum rather than its slope.
How to cite this document:
Benoit Eric, Rochet Marie-Joelle (2004). A continuous model of biomass size spectra governed by predation and the effects of fishing on them. Journal of Theoretical Biology, 226(1), 9-21. Publisher's official version : http://dx.doi.org/10.1016/S0022-5193(03)00290-X , Open Access version : http://archimer.ifremer.fr/doc/00000/665/
Benoit Eric, Rochet Marie-Joelle (2004). A continuous model of biomass size spectra governed by predation and the effects of fishing on them. Journal of Theoretical Biology, 226(1), 9-21. Publisher's official version : http://dx.doi.org/10.1016/S0022-5193(03)00290-X , Open Access version : http://archimer.ifremer.fr/doc/00000/665/
