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Life in the water
(lakes, lagoons, the coast and the sea)

Along an aquatic continuum, from the sources of rivers to their mouths, passing through freshwater lakes and wetlands to reach seas and oceans, aquatic ecosystems are strongly connected to each other and are highly impacted. humans. 


11:25 - 12:05

Anthropogenic footprint, increasing exposure or resilience of aquatic biodiversity in Côte d'Ivoire

Presenter & author: Allassane Ouattara (MARBEC, Nangui Abrogoua University, Ivory Coast)


Côte d'Ivoire has diversified aquatic ecosystems (rivers, lakes, lagoons, ocean) which support important services but are subject to intense anthropogenic pressures (overexploitation, galloping demography, anarchic urbanization, multiple pollution). The absence of an ambitious policy compromises the maintenance of their uses and seriously threatens the preservation of their biodiversity.

12:05 - 12:25

Modeling of meso-zooplankton in the Ocean with the Apecosm model on a global scale (attached to the TARA project)

Presenter: Baye Cheikh Mbaye (post-doctoral fellow MARBEC, TARA, Senegal)












14:00 - 14:20

Posidonia meadows in the Mediterranean

Presenter: Fabrice Houngnandan (MARBEC MARine Biodiversity, Exploitation and Conservation  - Univ Montpellier, CNRS, IFREMER, IRD, labcom InToSea, Montpellier, France)


Fabrice Houngnandan 1,2, (Presenter) / Sonia Kefi  1 (Co-thesis supervisor) / Julie Deter  2, 3 (Thesis supervisor) 

1  ISEM, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France

2  MARBEC, Univ Montpellier, CNRS, IFREMER, IRD, labcom InToSea, Montpellier, France

3  Andromède Océanologie, Mauguio, France


We deal with the regression of Posidonia oceanica caused by anthropogenic pressures and environmental factors in a context of global change in order to identify new solutions for its conservation.

P. oceanica is an indicator of the quality of its environment. By crossing its spatial distribution with biological and anthropogenic pressure data, we are proposing new indicators that are easy to calculate at the scale of the French coast. These results point to multiple applications for improving marine management and surveillance in the French Mediterranean.

14:20 - 14:40

How do tilapias adapt to climate change?

Presenter: Tine Mbaye (ISEM, Univ. Gaston Berger, St Louis, Senegal)

14:40 - 15:00

Port Environmental Monitoring Platform of the port of Cotonou (Benin): maritime transport and dissemination (invasive species for example)

Presenter: Gauthier Dobigny (IRD, France) & Arlette Tchabi (Health, Safety, Environment, Quality and Transversal Projects Department of the Autonomous Port of Cotonou, Benin)


The scientific results (biology, environmental law, economy) obtained in the port of Cotonou (Benin) prompted a strong response from the authorities: the creation of the first port platform for environmental monitoring in Africa. Based on a partnership between academic and operational players, it aims to prevent bio-invasions linked to maritime transport.

15:00 - 15:20

Screening of a documentary film (Arabic, with French subtitles) on the biodiversity of a Sebkha (Imlili) in Morocco

15:20 - 15:50

Visit of the Jardin des Plantes in Montpellier

All conferencescan be accessed remotely (after registration)

The experts

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Allassane Ouattara

Allassane Ouattara is a professor at the Nangui Abrogoua University in Abidjan (Côte d'Ivoire). He works with his team on the biodiversity of aquatic ecosystems (taxonomy, environmental DNA), integrated management of water resources, aquaculture development and fisheries management.

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Baye Cheikh Mbaye

Baye Cheikh Mbaye, post-doctoral fellow Sorbonne University / IRD.

His research areas are the study of interactions between ocean physics, biogeochemistry and marine ecosystems, with particular emphasis on the role of environmental effects on the composition of plankton, the survival of the early life stages of fish (eggs and larvae) and the dynamics of fish populations. Its main research tools are regional, individual and end-to-end models.

Image de Ben Sweet

Fabrice Houngnandan

Fabrice Houngnandan is a Doctor from the University of Montpellier and he defended his thesis on Posidonia meadows. Today, as part of his postdoc, he is interested in the evaluation of relevant fishery indicators to guide fisheries management strategies.

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Tine Mbaye

Page under construction

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Gauthier Dobigny

Gauthier Dobigny is a researcher at IRD (CBGP) and the scientific coordinator of the Port Environmental Monitoring Platform project, the implementation of which he oversees.

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Arlette Tchabi

Arlette Tchabi is Head of the Personal Safety and Environment Department at the Autonomous Port of Cotonou in Benin.

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