Maria Louiza Pedrotti et Gabriel Gorsky – (OOV – Villefranche-sur-Mer, CNRS) : www.obs-vlfr.fr
The Observatoire de Villefranche-sur-Mer is an example of multidisciplinarity with 2 laboratories recognized by the CNRS, working on cellular biology, oceanology, biology, biochemistry, physics,… Samples will be collected at the same spots than previous years to monitor the evolution of the pollution, especially in the Liguro-provençal stream. Detailled measures on the Italian South-West coast, especially in Calabria, will be collected too, as well as in the Tyrrhenian Sea, in the center of its permanent gyre. Here we will verify if there are areas of accumulation of microplastics in high sea.
The LIMATB is the largest research structure in Brittany within the field of materials engineering. Its main goal is to federate the competences and to add together the facilities in the field of materials engineering in Brittany. The team of 150 researchers, engineers, PhD, administrative and technical staff is focused around 2 aims :
• A multi-scale approach of the behaviour of heterogeneous materials,
• Materials, process and sustainable development.
The objective of the LIMATB is to tie industrial and technological develoment to sustainable development. Eco-conception of materials, energy savings in industrial processes and numerical simulation are the main focus of the project. More specifically, the aim is to develop the recyclability of materials, develop bio-sourced and biodegradable materials and new materials (metal, polymeres, composite, concrete,…). Plus d’infos
The Laboratoire de Chimie de L’Environnement (LCE) is a research unit depending on the University Aix-Marseille and on the Centre National de la Recherche Scientifique (CNRS).
The LCE works in areas of fundamental and applied science in the 3 environmental compartments : atmosphere, water and the soil. The aim is to adress societal issues like problems of chemical quality of the environment or management of natural and anthropized environments. The 55 scientists (33 permanent members) are divided in 3 teams, including the team Organic MicroPollutants (OMP).
Laboratoire Chimie de l’Environnement
Inventory of insects in the marine environment and the impact of plastic pollution on their evolution and dispersion
Only a few insect species live on the surface of the sea or just below the surface (most of them belong to the beetle, Diptera and Hemiptera Orders) compared to the number of insect species on land (1 million). The reasons are complex and depend on biological, physical and chemical factors.
Research and training center on marine science.
Plastic wastes in sediments : bottom circulation
Anne Murat et Yan Mear : (Cnam INTECHMER – Cherbourg)
Rivers carry propably a huge amount of plastic wastes originating from the whole cathment. Some float at the surface while others sink to the bottom and are carried away with sediments. Samples will be taken in the delta of the Rhône in order to assess the determining factors of the circulation of microplastics at the bottom of rivers. Those samples will inform us of the presence of microplastics and if they come from the Rhône.
Biofilm on floating plastic waste : is it a good thing or not ?
Martine Bertrand : (Cnam INTECHMER – Cherbourg)
When a piece of plastic is immersed in the sea, it is always colonized by living organisms. Bacteria are the firsts to settle, followed by algae and animals. The longer the piece of plastic remains in the sea, the bigger the biofilm. And this biofilm drift along with the piece. Biofilms on floating plastics collected in the Mediterranean by Expéditions MED 2015 will be analyzed by the Cnam-INTECHMER. A preliminary study on samples from 2014 has shown the presence of organisms able to survive in extreme environments, like bacteria typical from environments contaminated by sulfur or micro-algae able to develop under strong light intensity. Plastic debris could act as rafts for many species and therefore contribute to their spreading. We have to be aware of that risk for invasive or pathogenic species ! We also have the hope to find species able to degrade plastic !