Database-driven models of the world's Large Marine Ecosystems

Villy Christensen, Carl J. Walters, Robert Ahrens, Jacqueline Alder, Joe Buszowski, Line Bang Christensen, William W.L. Cheung, John Dunne, Rainer Froese, Vasiliki Karpouzi, Kristin Kaschner, Kelly Kearney, Sherman Lai, Vicki Lam, Maria L.D. Palomares, Aja Peters-Mason, Chiara Piroddi, Jorge Louis Sarmiento, Jeroen Steenbeek, Rashid SumailaReg Watson, Dirk Zeller, Daniel Pauly

Research output: Contribution to journalArticle

47 Scopus citations

Abstract

We present a new methodology for database-driven ecosystem model generation and apply the methodology to the world's 66 currently defined Large Marine Ecosystems. The method relies on a large number of spatial and temporal databases, including FishBase, SeaLifeBase, as well as several other databases developed notably as part of the Sea Around Us project. The models are formulated using the freely available Ecopath with Ecosim (EwE) modeling approach and software. We tune the models by fitting to available time series data, but recognize that the models represent only a first-generation of database-driven ecosystem models. We use the models to obtain a first estimate of fish biomass in the world's LMEs. The biggest hurdles at present to further model development and validation are insufficient time series trend information, and data on spatial fishing effort.

Original languageEnglish (US)
Pages (from-to)1984-1996
Number of pages13
JournalEcological Modelling
Volume220
Issue number17
DOIs
StatePublished - Sep 10 2009

All Science Journal Classification (ASJC) codes

  • Ecological Modeling

Keywords

  • Ecopath with Ecosim
  • Ecosystem model
  • Global modeling
  • LME

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    Christensen, V., Walters, C. J., Ahrens, R., Alder, J., Buszowski, J., Christensen, L. B., Cheung, W. W. L., Dunne, J., Froese, R., Karpouzi, V., Kaschner, K., Kearney, K., Lai, S., Lam, V., Palomares, M. L. D., Peters-Mason, A., Piroddi, C., Sarmiento, J. L., Steenbeek, J., ... Pauly, D. (2009). Database-driven models of the world's Large Marine Ecosystems. Ecological Modelling, 220(17), 1984-1996. https://doi.org/10.1016/j.ecolmodel.2009.04.041