On-going

PhD students

Morphological determinism of predator-prey interactions and implications for marine food web structure and dynamics

Cachera M. (2010-2013)

Supervisors: Ching VILLANUEVA et Bruno ERNANDE, Ifremer Boulogne-sur-Mer et S. Léfevbre (Professeur, Université des Sciences et Technologie de Lille 1 et directeur de Station de Wimereux)

Financements: Projet InterReg IVA - CHARM3.

Abstract :

Trophic links between species, or predator-prey interactions, determine the dynamics of energy and biomass flow in food webs, which in turn are responsible for the maintenance of biodiversity and the ecological responses of communities to environmental variability and anthropogenic perturbations. Therefore, identifying general principles governing predator-prey interactions would be key in understanding the emergence of marine food web structure and dynamics. Beyond the study of trophic links, understanding and predicting the dynamics of complex systems such as food webs require the use of models that rely on a simplified description of the system while holding essential components for its structuring and functioning. This PhD proposal focuses on predator-prey interactions in fish communities and their implications for food web structure and dynamics with two main objectives: (i) to predict the trophic ecology of fish species based on quantitative functional considerations, namely the identification of morphological determinants of predator-prey interactions by establishing allometric relationships between the morphological characteristics of preys and predators; and (ii) to develop a generic model describing food web structure and dynamics by collapsing it dimensions to the main morphological determinants of predator-prey interactions. A case study will be developed on the Eastern English Channel.

Evaluation of the relative importance of benthic habitats in the recruitment of the common cuttlefish, Sepia officinalis within the English Channel

Bloor I. (2009-2012) 

Encadrants: E. Jackson (Directrice, Biodiversity and Conservation Science Programme Manager, Marine Biological Association of the United Kingdom), M. Attrill (Director of the Marine Institute, University of Plymouth), D. Simms (MBA, Senior Research Fellow and MBA deputy Director).

Financements: Projet InterReg A - CRESH.

Application de la démarche systémique de planification de la conservation en Manche orientale: Quels objectifs de conservation?

Delavenne J. (2009-2012) 

Encadrants: J.-C. Dauvin (Directeur, Laboratoire d'Océanologie et de Géosciences UMR CNRS 8187 LOG, Station Marine Université de Lille 1), S. Vaz (Ifremer, Boulogne-sur-Mer) et R.J. Smith (Durrell Institute of Conservation Ecology, University of Kent).

Financements: Syndicat Mixte de la Côte d'Opale.

Abstract :

The marine environment of the Eastern English Channel is a significant economic resource that supports a number of human-based activities, such as tourism and recreation, international ports and shipping, and the extraction of both living and non-living resources. In addition to human use, the region supports a number of important marine biological features. Responsible and integrated management aided by information systems and tools capable of assisting decision-making is essential for the construction of policies to ensure the sustainable exploitation of these marine resources. MARXAN is a computer program that deliver decision support for reserve system design. It finds reasonably efficient solutions to the problem of selecting a system of spatially cohesive sites that meet a suite of biodiversity targets. The aim of this study is to develop a tentative conservation plan for the eastern English Channel to identify important sites for conserving biodiversity, whilst using anthropological, economic and legal data to minimise potential opportunity costs. Different scenarios with varying target thresholds will be explored and this study will attempt to answer the following questions:

How can the available environmental and biological data be used to define the Eastern Channel seascapes and set targets for each species and habitat type found in the English Channel?

Can conservation targets and socio-economic constraints be conciliated and a spatialised systematic planning be proposed in this area?

How do marine park initiatives in the Eastern English Channel lie within the wider context of conservation through Marine Protected Area (MPA) networks ?

Contribution des frayères côtières au recrutement du stock de seiches de Manche: Lien entre les succès de la phase pré recruté et l'abondance de la ressource

 Gras M. (2009-2012) 

Encadrants: J.-P. Robin (Directeur), UMR-Ifremer PE2M et coordinateur de projet CRESH.
Financements: Projets Interreg A - CRES et Université de Caen.

Typologie, Structure et fonctionnement des habitats marins benthiques dans le bassin oriental de la Manche

Lozach S. (2008-2011) 

Encadrants: J.-C. Dauvin (Directeur), Laboratoire d'Océanologie et de Géosciences UMR CNRS 8187 LOG.

Financements: Convention CIFRE

Changement adaptifs générés par la pêche chez les populations halieutiques

Marty L. (2007-2010) 

Encadrants: M.-J. Rochet (Directrice) et B. Ernande de l'Ifremer Nantes et Boulogne-sur-Mer.
Financements: Union Européen à travers de projet FINE et Ifremer.

Using biological, anthropological, economic and legal data to design an effective marine protected area system for the English Channel

Metcalfe, K. (2009-2012) 

Encadrants: S. Harrop (Directeur, Durrell Institute of Conservation Ecology, University of Kent), B. Smith (Durrell Institute of Conservation Ecology, University of Kent) et S. Vaz (Ifremer, Boulogne-sur-Mer).

Financements: Projet Interreg A, Durrell Institute of Conservation Ecology, University of Kent et Ifremer.

Approche fonctionnelle des communautés benthiques à Abra alba et Ophiothrix fragilis du bassin oriental de la Manche : approche expérimentale

Tous Rius A. (2009-2012) 

Encadrants: J.-C. Dauvin (Directeur), L. Denis et N. Spilmont du u Laboratoire d'Océanologie et de Géosciences UMR CNRS 8187 LOG, Station Marine Université de Lille 1.

Financements: Projet Interreg IV A CHARM3.

Etude de l'impact de différents habitats Anglo-normands sur le développement des oeufs et sur les performances physiologiques des juvéniles de seiche, Sepia officinalis L.

Safi G. (2009-2012) 

Encadrants: N. Koeta (Directeur), Maître de conférence à l'UMR-Ifremer PE2M.

Financements: Projet InterReg A - CRESH et Université de Caen

Post-doctoral fellow

Marine food web structure in the eastern English Channel based on carbon and nitrogen stable isotope analyses: spatio-temporal variability and sized-based trophic relationship (ISO-SCALE)

Kopp D. (2011-2012)

Superviseurs: Ching VILLANUEVA, Bruno ERNANDE, Ifremer Boulogne-sur-Mer et S. Léfevbre (Professeur, Université des Sciences et Technologie de Lille 1 et directeur de Station de Wimereux)

Financements: Projet InterReg IVA - CHARM3.

Master students

Fish trophique ecology in the eastern English Channel: Comparative approach of predator-prey relationship through stomach content and geomorphometic analyses

Le Fur I. (January to July 2011, University of Paris VI)

Superviseurs: Ching VILLANUEVA, Bruno ERNANDE, Ifremer Boulogne-sur-Mer

Financements: Projet InterReg IVA - CHARM3.

Modeling habitat effects on the trophic functioning of marine ecosystems: Simulating potential effects of marine gravel extraction

Briffault A. (March to August 2011, Agrocampus Ouest, Rennes)

Superviseurs: Didier GASCUEL, Agrocampus Ouest, Rennes and Ching VILLANUEVA, Ifremer Boulogne-sur-Mer

Financements: Projet InterReg IVA - CHARM3.