OBJECTIF – Mesures des flux de matières d’origine atmosphérique en mer Méditerranée dans le cadre du réseau MOOSE Mesures en réseau avec cap Béar et cap ferrat Le milieu marin est de plus en plus soumis à l’influence anthropique, très directement sur la frange littorale, mais également au large par les retombées atmosphériques qui peuvent se propager très loin. La Méditerranée étant une mer oligotrophe, c’est-à-dire pauvre en élément nutritifs, tout apport d’éléments peut être un facteur de développement biologique significatif. Par contre l’apport de contaminants et de polluants par voie atmosphérique peut être un facteur perturbant ou inhibant l’écosystème. Le site du Frioul offrant l’opportunité de quantité les retombées atmosphériques dans la zone côtière, le Service d’Observation du MIO a proposé d’utiliser ce site pour installer des collecteurs de retombées atmosphériques. Collecteur de retombées atmosphériques sèches et pluies (MTX Italia) installé sur une plateforme dans l’enceinte du sémaphore de Pomègues Un collecteur de type MTX permet de récupérer les retombées sèches et les retombées humides (pluies) séparément. Parallèlement, un système de pompage en continu des aérosols a été mise en place dans la pièce supérieure du sémaphore. Il est composé de pompes à vide reliées à un compteur qui aspire en continu l’air qui est filtré sur un filtre disposé à l’extérieur. La collecte des échantillons est assurée chaque semaine par un opérateur du MIO. Par ailleurs le MIO assure le traitement et l’analyse de la matière récoltée. Les éléments suivants, source de fertilisation du milieu marin sont déterminés : - Azote total - Phosphore total - Carbone total - Formes solubles de l’azote (nitrate, nitrite, ammonium) - Formes solubles du phosphore (orthophosphates) - Formes particulaires de l’azote, du phosphore et du carbone. SITE : Iles de Pomègues - Sémaphore du Frioul PROGRAMME DE RATTACHEMENT - Mediterranean Oceanic Observing System on Environment : MOOSE - Labellisation : SOERE - INSU - Financement : SOERE – INSU – Ville de Marseille RESPONSABLE LOCAL: - Patrick Raimbault DISPONIBLITE DES DONNEES : - Base de données SEDOO: http://mistrals.sedoo.fr/MOOSE/ PARTICIPANTS : - M. Fornier : collecte - V. Lagadec analyses chimiques - P. Raimbault : analyses élémentaires PARTENAIRES - MOOSE - CHARMEX- Ville de Marseille – Parc des îles du Frioul - OSU de Villefranche et de Banyuls

Electrical production simulated with an empirical solar panel model.

Assuming the huge progress achieved in public participatory geographic information system (PPGIS) techniques and its current research gaps, this study aims to explore differences in the perception of spatial distribution of ecosystem services supply and demand between different stakeholders through collaborative mapping. In this case the stakeholders selected included low influence stakeholders (with a high degree of interest on the ecosystem services' state and with a low influence in environmental management). Workshops took place in June 2013 in two regions of Andalusia; overall 29 participants were involved. Food from agriculture and livestock were mapped.

The scientific objectives of the project SOOT-SEA the objectives of this study in northern Vietnam are to determine: - (1) the composition of fine particles in order to assess their health, climatic and environmental impacts, - (2) their origin, both geographical and sectoral, - (3) atmospheric deposition fluxes, - (4) fluvial fluxes of black carbon towards the ocean. Study carried out during a complete annual cycle (weekly frequency). Aerosols were sampled for 24 hours using a large volume PM2.5 collector. Samples collected on quartz filters were analyzed to determine the concentrations of: - organic carbon (OC) and - elemental carbon (EC), - organic nitrogen (ON), - metals (Hg, Al, Ti, V, Cr, Mn, Fe, Co , Ni, Cu, Zn, As, Ag, Cd, Sn, Sb, Cs, Ce, Nd, Pb, U), - Pb isotopes, - PAHs, sugars, ions, organic acids, humic-like substances (HULIS). The oxidizing potential (OP) of these particles was determined using the DTT (Dithiotreithol) method. Citation: Mari, X., Uzu, G., Jaffrezo, J.-L., Dominutti, P., Chifflet, S., Tedetti, M., Guigue, C., Guyomarc’h , L., Heimburger, L.-E., & Raimbault, P. (2017). SOOT-SEA : Impact of Black Carbon in South East Asia [Data set]. MIO UMR 7294 CNRS. https://doi.org/10.34930/858FCE6B-A882-43C0-B5D0-81E80EFA7A1C

Point vector file representing the sampling sites of atmospheric particles on tree and ground leaves. Sampling performed in 2003. Contact : Y. Noack (CEREGE).

High-resolution elevation model of Azigza watershed using the RTK-GPS combined with the assessment of topographic map scanned and a bathymetric map of the lake.

Assuming the huge progress achieved in public participatory geographic information system (PPGIS) techniques and its current research gaps, this study aims to explore differences in the perception of spatial distribution of ecosystem services supply and demand between different stakeholders through collaborative mapping. In this case the stakeholders selected included high influence stakeholder (with a high degree of interest on the ecosystem services' state and with an important influence into the environmental decision making process). Workshops took place in June 2013 in two regions of Andalusia; overall 29 participants were involved. Food from agriculture and livestock were mapped.

Land use dataset compiled for forcing LPJmL.

What drives phytoplankton diversity at fine scales? Phytoplankton diversity is a key component in ocean biogeochemical services and contributes to the resilience and health of ocean ecosystems in respect to local and global stressors, including climate change. Understanding the mechanisms behind phytoplankton diversity in the open ocean is a matter of concern, especially in these years in which large Marine Protected Areas are created in international waters and an international legally binding treaty on Marine Biodiversity Beyond National Jurisdiction is under negotiation. Model studies suggest that finescale ocean dynamics are an important driver of plankton diversity and several scenarios have been suggested. In situ observations however are difficult to perform, due to the ephemeral nature of finescale features and the difficulty of tracking them from available remote sensing. This observational limit will be largely reduced by the SWOT mission, in particular during the fast sampling phase, opening new possibilities to biophysical experiments in the open ocean. The BIOSWOT-Med campaign aims at exploiting SWOT observations for unveiling the drivers of phytoplankton diversity in the Western Mediterranean. The western Mediterranean Sea is characterized by high plankton diversity, low nutrient concentration, and weak oceanic circulation. Here, finescale features, even if weak and short-lived, can strongly modulate the microbial community structure. To study the finescale biophysical coupling, and its impact of phytoplankton diversity, the BIOSWOT-Med campaign will follow the temporal evolution of eddies and filaments over the western Mediterranean SWOT crossover. The physical-biochemical coupling at the frontal zone between Atlantic Water recently entered in the Mediterranean basin and modified Atlantic Water coming from cyclonic circulation in the western Mediterranean basin will be studied through an adaptive Lagrangian sampling strategy using the software SPASSO (Software Package for an Adaptive Satellite-based Sampling for Oceanographic cruises) developed in previous research cruises. This physical information will be paired by a multi-sensor characterization of the planktonic community, including advanced molecular (meta-transcriptomics, metagenomics and meta-barcoding) techniques, and the use of autonomous and robotic platforms. Institutes involved in the campaign: AMU, LOCEAN, CEA, CNR, CNRS, CSIC, Fisheries and Ocean Canada, IFREMER, IRD, MBARI, NWRA, OGS, SHOM, Sorbonne Université, SZN, UCSD, ULCO, University of Exeter, University of Washington.

Assuming the huge progress achieved in public participatory geographic information system (PPGIS) techniques and its current research gaps, this study aims to explore differences in the perception of spatial distribution of ecosystem services supply and demand between different stakeholders through collaborative mapping. In this case the stakeholders selected included low influence stakeholders (with a high degree of interest on the ecosystem services' state and with a low influence in environmental management). Workshops took place in June 2013 in two regions of Andalusia; overall 29 participants were involved. Two ecosystem services were mapped (freshwater and energy).