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Adapting the dynamic energy budget (DEB) approach to include non-continuous growth (moulting) and provide better predictions of biological performance in crustaceans

Adapting the dynamic energy budget (DEB) approach to include non-continuous growth (moulting) and provide better predictions of biological performance in crustaceans
Adapting the dynamic energy budget (DEB) approach to include non-continuous growth (moulting) and provide better predictions of biological performance in crustaceans

Dynamic energy budget (DEB) theory offers a comprehensive framework for understanding the overall physiological performance (growth, development, respiration, reproduction, etc.) of an organism over the course of its life cycle. We present here a simplified DEB model for the swimming crab Liocarcinus depurator. To the best of our knowledge, this is the first to be presented for this species. Most applications of the standard DEB model assume continuous growth in all size metrics (length, wet mass, carbon content) of the modelled species. However, in crustaceans growth, measured as an increase of carapace length/width, occurs periodically via moult. To account for this, we have extended the model to track the continuous increase in carbon mass as well as the episodic increase in physical size. Model predictions were consistent with the patterns in the observed data, predicting both the moult increment and the intermoult period of an individual. In addition to presenting the model itself, we also make recommendations for further development, and evaluate the potential applications of such a model, both at the individual level (e.g. aquaculture) and as a potential tool for population level dynamics (e.g. fisheries stock assessment).

Crustacean growth, Dynamic energy budget, Metabolic theory, Moulting
1054-3139
192-205
Elizabeth Talbot, S.
d33ae9c7-c685-4179-ad1b-ae86a2034532
Widdicombe, Stephen
3ecf2b3e-6b3f-4f2f-86c5-baf070e8c82b
Hauton, Chris
7706f6ba-4497-42b2-8c6d-00df81676331
Bruggeman, Jorn
1cecb872-e85d-4467-b578-b7dffffcf3de
Elizabeth Talbot, S.
d33ae9c7-c685-4179-ad1b-ae86a2034532
Widdicombe, Stephen
3ecf2b3e-6b3f-4f2f-86c5-baf070e8c82b
Hauton, Chris
7706f6ba-4497-42b2-8c6d-00df81676331
Bruggeman, Jorn
1cecb872-e85d-4467-b578-b7dffffcf3de

Elizabeth Talbot, S., Widdicombe, Stephen, Hauton, Chris and Bruggeman, Jorn (2019) Adapting the dynamic energy budget (DEB) approach to include non-continuous growth (moulting) and provide better predictions of biological performance in crustaceans. ICES Journal of Marine Science, 76 (1), 192-205. (doi:10.1093/icesjms/fsy164).

Record type: Article

Abstract

Dynamic energy budget (DEB) theory offers a comprehensive framework for understanding the overall physiological performance (growth, development, respiration, reproduction, etc.) of an organism over the course of its life cycle. We present here a simplified DEB model for the swimming crab Liocarcinus depurator. To the best of our knowledge, this is the first to be presented for this species. Most applications of the standard DEB model assume continuous growth in all size metrics (length, wet mass, carbon content) of the modelled species. However, in crustaceans growth, measured as an increase of carapace length/width, occurs periodically via moult. To account for this, we have extended the model to track the continuous increase in carbon mass as well as the episodic increase in physical size. Model predictions were consistent with the patterns in the observed data, predicting both the moult increment and the intermoult period of an individual. In addition to presenting the model itself, we also make recommendations for further development, and evaluate the potential applications of such a model, both at the individual level (e.g. aquaculture) and as a potential tool for population level dynamics (e.g. fisheries stock assessment).

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More information

Accepted/In Press date: 11 October 2018
e-pub ahead of print date: 22 November 2018
Published date: 1 January 2019
Keywords: Crustacean growth, Dynamic energy budget, Metabolic theory, Moulting

Identifiers

Local EPrints ID: 429053
URI: https://eprints.soton.ac.uk/id/eprint/429053
ISSN: 1054-3139
PURE UUID: 0351b724-af4b-4dbe-ac8e-7c8d10c0ea6d
ORCID for Chris Hauton: ORCID iD orcid.org/0000-0002-2313-4226

Catalogue record

Date deposited: 20 Mar 2019 17:30
Last modified: 19 Jul 2019 16:38

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