The scientific programs are implemented during circumnavigations around the Mediterranean Sea : each year a zone of the Sea is studied.
Between 2010 and 2013, the objective has been to cover the Liguro-Provençal stream in the French-Italian area, including Corsica. In 2014, it is the whole Western Mediterranean which has been covered.
In 2015 we have emphasized sampling in the French-Italian zone of the Liguro-Provençal Sea.
Microplastics : Circulation, distribution
Partners : Maria Louiza Pedrotti et Gabriel Gorsky – (OOV – Villefranche-sur-Mer, CNRS) – Stéphane Bruzaud : Chimie – UBS Limat B Lorient.
Samples will be collected at the same spots than previous years to watch 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 see if there are areas of accumulation of microplastics in high sea.
Microplastics : organic persistant polluants
Partners : Pascal Wong – Pierre Doumenq (Laboratoire Chimie Environnement – Université d’Aix – Marseille, CNRS)
environment, and if those pollutants can be released when ingested by marine animals, potentially causing their death. Microplastics will be sampled and analyses on persistant organic pollutants will be conducted.
Insects and microplastics : Identification et influences
Partners : J.L Brunet, Y. Perrin, (IRD de Montpellier), CIRAD : Bruno Michel, Henri-Pierre Aberlenc (Montpellier) – Muséum d’Histoire Naturelle : Cédric Audibert (Lyon)
Manta trawling often captures many insects. This year we will sample separately those insects in order to identify their taxa. Also, insects will be sampled in high sea and we will look for eggs on plastic wastes in order to see if floating microplastics have an influence on insects.
Plastic wastes in sediments : bottom circulation
Partners : A. Murat, Y. 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.