Research Activities

Joachim Claudet


Current Research Projects

Past Research Projects

  • THREATS ON COASTAL ECOSYSTEMS. Resistance and resilience of coastal biodiversity to synergistic effects of global and local environmental changes (BIORES) (Participant). This project is supported by the Italian Ministry of Research. In this project we will examine the synergistic effects of global vs. local disturbances on the ability of two key coastal systems - subtidal rocky reefs and coastal dunes - to resist to and to recover from perturbations. Using a combination of correlative and experimental approaches we will establish quantitative relationships between the resistance/resilience of these ecosystems and the degree of variability of environmental driving forces. Marine and terrestrial assemblages will be exposed to series of spatially autocorrelated and spatially independent disturbances to reflect large-scale (low frequency) disturbances and abrupt (high frequency) environmental changes, respectively. In doing so, we expect to identify general principles that govern the response of assemblages to increasing environmental fluctuations, independently of the identity of the environmental drivers of change. This project is expected to originate the necessary scientific understanding to anticipate the consequences of environmental variation on biodiversity, to provide managers with better tools to halt species extinctions and to guarantee long-term ecosystem functioning in the face of increasing climate variability.

  • COASTAL MANAGEMENT AND MARINE PROTECTED AREAS. Experimental quantification of the effects of anthropogenic disturbance in costal areas on fish and benthos species (INTERREG Italia-Albania [link]) (Participant). This project is supported by the European Community. The objectives are (1) to quantify human impacts on coastal species; and (2) to establish a network of MPAs.

  • MARINE PROTECTED AREAS. Marine protected areas as tools for fisheries management and conservation (EMPAFISH [link]) (Work package scientific leader). This project is supported by the European Community. The objectives of EMPAFISH are: (1) to investigate the potential of different regimes of MPAs in Europe as measures to protect sensitive and endangered species, habitats and ecosystems from the effects of fishing; (2) to develop quantitative methods to assess the effects of marine protected areas; and (3) to provide EU with a set of integrated measures and policy proposals for the implementation of MPAs as fisheries and ecosystem management tools.

  • MARINE PROTECTED AREAS. LITEAU project. This multidisciplinary project is supported by the French Ministry of Environement (Participant). This project aims to develop useful management tools from statistic and mathematical models, intended to asses MPAs. The project, participated in by scientists (biomathematics, biostatistics, ecology, economics, and geography) and managers, is based on various study cases in the Mediterranean, the Atlantic and the Pacific.

  • MARINE PROTECTED AREAS. Assessment of biomass export from marine protected areas and its impact on fisheries in the western Mediterranean Sea (BIOMEX [link]) (Participant). This project is supported by the European Community. The main objective was to assess the export of fisheries-related biomass from MPAs to surrounding areas by considering: (1) the exportation of adult fishes; (2) the pelagic export of larvae; and (3) the contribution of adult fish export to fisheries.

  • INTEGRATED COASTAL ZONE MANAGEMENT. Coastal and lagoon systems (SYSCOLAG [link]). This multidisciplinary project was supported by the French Region Languedoc-Roussillon and by the IFREMER (Work package Leader). This programme's main objectives were: (1) to mobilise and share the available knowledge between different partners, involving ecologists, economists, political scientists, geographers and geologists; (2) to facilitate an interdisciplinary and integrated approach, offering relevant indicators which study the milieu and usage; and (3) to evaluate current conservation policies regarding natural coastal marine resources then in proposing, through statistical modelling, appropriate responses for sustainable management of resources.

  • SPECIES RARITY AND STATISTICAL PROGRAMMING. Fairly processing rare and common species in multivariate analysis of ecological series. Application to macrobenthic communities from Algiers harbour (Participant). The objectives were to: (1) program in 'R' a selection method of rare and common species, the 'RACOM' selection procedure; and (2) to applied the RACOM procedure to macrobenthos abundance data sampled in the Algiers' harbour in order to evidence environmental and pollution gradients with the use of multivariate analysis techniques.