A deterministic population dynamics model to study the distribution of a benthic bivalve with planktonic larvae (Paphia rhomboides) in the English Channel (NW Europe)

Type Article
Date 2008-03
Language English
Author(s) Savina MarieORCID1, Menesguen Alain1
Affiliation(s) 1 : IFREMER, Ctr Brest, Dept DYNECO, F-29280 Plouzane, France.
Source Journal of Marine Systems (0924-7963) (Elsevier), 2008-03 , Vol. 70 , N. 1-2 , P. 63-76
DOI 10.1016/j.jmarsys.2007.03.001
WOS© Times Cited 10
Keyword(s) Spatial distribution, Meroplanktonic invertebrates, Growth model, Population dynamics model, Paphia rhomboides, English Channel
Abstract This paper describes the development of a modelling framework to study the distribution in the English Channel of a benthic bivalve with planktonic larvae, Paphia rhomboides. Age-structured population dynamics and growth models are linked together to a compartmental transport and NPZ (Nutrients-Phytoplankton-Zooplankton) model. Used in a spin-up mode, i.e. with identical environmental forcing from a year to the next, this deterministic model converges to the same steady state whatever the initial conditions, after 15-30 years of simulation. Important features of the P. rhomboides distribution are reproduced, particularly its high abundance in the GNB (Golfe Normand-Breton) and its almost complete absence in the Western Channel. The results are discussed in relation with the modelling strategies, especially with regard to the advantages and drawbacks which could result from changing the box-model approach into a fine 3D hydrodynamic approach. (C) 2007 Elsevier B.V. All rights reserved.
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