SPRAT: A spatially-explicit marine ecosystem model based on population balance equations

Arne N. Johanson, Andreas Oschlies, Wilhelm Hasselbring and Boris Worm

Ecological Modelling, 2017, vol. 349, issue C, 11-25

Abstract: To successfully manage marine fisheries using an ecosystem-based approach, long-term predictions of fish stock development considering changing environmental conditions are necessary. Such predictions can be provided by end-to-end ecosystem models, which couple existing physical and biogeochemical ocean models with newly developed spatially-explicit fish stock models. Typically, individual-based models (IBMs) and models based on advection-diffusion-reaction (ADR) equations are employed for the fish stock models. In this paper, we present a novel fish stock model called SPRAT for end-to-end ecosystem modeling based on population balance equations (PBEs) that combines the advantages of IBMs and ADR models while avoiding their main drawbacks. SPRAT accomplishes this by describing the modeled ecosystem processes from the perspective of individuals while still being based on partial differential equations.

Keywords: End-to-end modeling; Population balance equation; Fish stock prediction; Ecosystem-based management (search for similar items in EconPapers)
Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecomod:v:349:y:2017:i:c:p:11-25

DOI: 10.1016/j.ecolmodel.2017.01.020

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