A stepwise Fitting Procedure for automated fitting of Ecopath with Ecosim models

Erin Scott, Natalia Serpetti, Jeroen Steenbeek, Johanna Heymans

Research output: Contribution to journalArticle

16 Citations (Scopus)
25 Downloads (Pure)


The Stepwise Fitting Procedure automates testing of alternative hypotheses used for fitting Ecopath with Ecosim (EwE) models to observation reference data (Mackinson et al. 2009). The calibration of EwE model predictions to observed data is important to evaluate any model that will be used for ecosystem based management. Thus far, the model fitting procedure in EwE has been carried out manually: a repetitive task involving setting >1000>1000 specific individual searches to find the statistically ‘best fit’ model. The novel fitting procedure automates the manual procedure therefore producing accurate results and lets the modeller concentrate on investigating the ‘best fit’ model for ecological accuracy.
Original languageEnglish
Pages (from-to)25-30
Number of pages6
Publication statusPublished - 16 Mar 2016



  • Stepwise model fitting procedure
  • Model fitting
  • Ecological modelling
  • Ecopath with Ecosim

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