Biophysical modelling to investigate the effects of climate change on marine population dispersal and connectivity

Type Article
Date 2010-10
Language English
Author(s) Lett Christophe1, 2, Ayata Sakina-Dorothee3, 4, Huret MartinORCID5, Irisson Jean-Olivier6
Affiliation(s) 1 : Ctr Rech Halieut Mediterraneenne & Trop, UMI IRD 209, F-34203 Sete, France.
2 : Ctr Rech Halieut Mediterraneenne & Trop, UPMC UMMISCO, F-34203 Sete, France.
3 : Univ Paris 06, UMR 7144, Stn Biol Roscoff, F-29682 Roscoff, France.
4 : CNRS, UMR 7144, Stn Biol Roscoff, F-29682 Roscoff, France.
5 : Ctr Ifremer Nantes, EMH, F-44311 Nantes 3, France.
6 : CNRS EPHE UPVD, UMR 5244, Ctr Biol & Ecol Trop & Mediterraneenne, F-66860 Perpignan, France.
Source Progress In Oceanography (0079-6611) (Pergamon-elsevier Science Ltd), 2010-10 , Vol. 87 , N. 1-4 , P. 106-113
DOI 10.1016/j.pocean.2010.09.005
WOS© Times Cited 61
Note European Project RECLAIM (FP6 – Contract 044133)
Abstract Climate may act on the dispersal and connectivity of marine populations through changes in the oceanic circulation and temperature, and by modifying species' prey and predator distributions. As dispersal and connectivity remain difficult to assess in situ, a first step in studying the effects of climate change can be achieved using biophysical models. To date, only a few biophysical models have been used for this purpose. Here we review these studies and also include results from other recent modelling efforts. We show that increased sea temperature, a major change expected under climate warming, may impact dispersal and connectivity patterns via changes in reproductive phenology (e.g., shift in the spawning season), transport (e.g., reduced pelagic larval duration under faster development rates), mortality (e.g., changes in the exposure to lethal temperatures), and behaviour (e.g.. increased larval swimming speed). Projected changes in circulation are also shown to have large effects on the simulated dispersal and connectivity patterns. Although these biophysical modelling studies are useful preliminary approaches to project the potential effects of climate change, we highlight their current limitations and discuss the way forward, in particular the need for adequate coupled hydrodynamic-biogeochemical simulations using atmospheric forcing from realistic climate change scenarios. (C) 2010 Elsevier Ltd. All rights reserved.
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