Integrating dynamic energy budget (DEB) theory with traditional bioenergetic models.

Nisbet, Roger M.; Jusup, Marko; Klanjšček, Tin; Pecquerie, Laure (2012) Integrating dynamic energy budget (DEB) theory with traditional bioenergetic models.. Journal of experimental biology, 215 (6). pp. 892-902. ISSN 0022-0949

| Request a personal copy from author

Abstract

Dynamic energy budget (DEB) theory offers a systematic, though abstract, way to describe how an organism acquires and uses energy and essential elements for physiological processes, in addition to how physiological performance is influenced by environmental variables such as food density and temperature. A 'standard' DEB model describes the performance (growth, development, reproduction, respiration, etc.) of all life stages of an animal (embryo to adult), and predicts both intraspecific and interspecific variation in physiological rates. This approach contrasts with a long tradition of more phenomenological and parameter-rich bioenergetic models that are used to make predictions from species-specific rate measurements. These less abstract models are widely used in fisheries studies ; they are more readily interpretable than DEB models, but lack the generality of DEB models. We review the interconnections between the two approaches and present formulae relating the state variables and fluxes in the standard DEB model to measured bioenergetic rate processes. We illustrate this synthesis for two large fishes: Pacific bluefin tuna (Thunnus orientalis) and Pacific salmon (Oncorhynchus spp.). For each, we have a parameter-sparse, full-life-cycle DEB model that requires adding only a few species-specific features to the standard model. Both models allow powerful integration of knowledge derived from data restricted to certain life stages, processes and environments.

Item Type:	Article
Uncontrolled Keywords:	bioenergetic models; dynamic energy budget; salmon; tuna
Subjects:	NATURAL SCIENCES > Biology NATURAL SCIENCES > Biology > General Biology NATURAL SCIENCES > Interdisciplinary Natural Sciences > Environmental Science
Divisions:	Division for Marine and Enviromental Research
Projects:	Project title Project leader Project code Project type Ecological modelling for sustainable management of resources (Ekološko modeliranje za održivo upravljanje resursima)- Tarzan Legović 098-0982934-2719 MZOS
Depositing User:	Tin Klanjšček
Date Deposited:	05 Nov 2015 13:30
URI:	http://fulir.irb.hr/id/eprint/2217
DOI:	10.1242/jeb.059675

Actions (login required)

View Item