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See detailDéveloppement d’un indice de composition phytoplanctonique adapté aux eaux côtières méditerranéennes
Goffart, Anne ULg

Scientific conference (2015, December)

L'indice de composition phytoplanctonique ICMedit : bilan et perspectives.

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See detailSTAtion of Reference and rEsearch on Change of local and global Anthropogenic Pressures on Mediterranean Ecosystems Drifts: The STARECAPMED project
Richir, Jonathan ULg; Abadie, Arnaud ULg; Binard, Marc ULg et al

Conference (2015, November 08)

The Marine and Oceanographic Research Station STARESO in the Calvi Bay, Corsica (France), is a unique tool in a preserved natural site that includes all the characteristic ecosystems of the Mediterranean ... [more ▼]

The Marine and Oceanographic Research Station STARESO in the Calvi Bay, Corsica (France), is a unique tool in a preserved natural site that includes all the characteristic ecosystems of the Mediterranean littoral. The station, established in 1970, has archived environmental data for decades. The STARECAPMED project, multidisciplinary, articulates itself around these two main features. Its objective is to understand how human activities can interact with the fundamental processes that govern the functioning of the different coastal ecosystems of a Mediterranean bay. The understanding of these interactions involves: (i) the identification of the anthropogenic pressures; (ii) the quantification of their impacts on the ecosystems; (iii) the prioritization of these impacts. STARECAPMED also aims to confirm the relevance of the use of the Calvi Bay as a reference in the study of local and global pressures and the changes they may cause on the structure and the functioning of Mediterranean coastal ecosytems. [less ▲]

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See detailPlankton ecosystem response to the decadal variation of winter intensity in the Mediterranean Sea : a long-term study (1979-2014)
Goffart, Anne ULg; Collignon, Amandine ULg; Hecq, Jean-Henri ULg et al

Poster (2015, October)

In the Mediterranean Sea, several studies with distinct data sets indicate that the pelagic ecosystem underwent periods of change in the late 1980s and in the early 2000s. Here we used a unique long-term ... [more ▼]

In the Mediterranean Sea, several studies with distinct data sets indicate that the pelagic ecosystem underwent periods of change in the late 1980s and in the early 2000s. Here we used a unique long-term time series of data collected in the well-preserved Bay of Calvi (Corsica island, Ligurian Sea, NW Mediterranean) from 1979 and 2014 to explore the synchrony between changes in environmental conditions and phyto- and zooplankton dynamics. We identified an almost decadal, long-term variability in winter intensity, with three distinct periods: the 1980s (1979-1988), the 1990s (1989-1998) and the 2000s (1999-2014), which were characterized by moderate, mild and highly variable winters, respectively. We pointed out how the decadal changes in winter intensity affected (i) the duration and intensity of phyto- and zooplankton blooms, (ii) the mean yearly biomasses, and (iii) the nature of the assemblages. High phyto- and zooplankton biomasses were observed in years characterized by moderate and severe winters, and low phyto- and zooplankton abundances were recorded in years with mild winters. Moderate/severe and mild winters were favorable for diatoms and gelatinous zooplankton, respectively. Focusing on meroplanktonic species, we explored ecological consequences of decadal variations observed in the Bay of Calvi for resource management. We highlighted parallelisms with other European seas. [less ▲]

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See detailPlankton ecosystem response to the decadal variation of winter intensity in the Mediterranean Sea : a long-term study (1979-2014)
Goffart, Anne ULg; Collignon, Amandine ULg; Hecq, Jean-Henri ULg et al

Conference (2015, October)

In the Mediterranean Sea, several studies with distinct data sets indicate that the pelagic ecosystem underwent periods of change in the late 1980s and in the early 2000s. Here we used a unique long-term ... [more ▼]

In the Mediterranean Sea, several studies with distinct data sets indicate that the pelagic ecosystem underwent periods of change in the late 1980s and in the early 2000s. Here we used a unique long-term time series of data collected in the well-preserved Bay of Calvi (Corsica island, Ligurian Sea, NW Mediterranean) from 1979 and 2014 to explore the synchrony between changes in environmental conditions and phyto- and zooplankton dynamics. We identified an almost decadal, long-term variability in winter intensity, with three distinct periods: the 1980s (1979-1988), the 1990s (1989-1998) and the 2000s (1999-2014), which were characterized by moderate, mild and highly variable winters, respectively. We pointed out how the decadal changes in winter intensity affected (i) the duration and intensity of phyto- and zooplankton blooms, (ii) the mean yearly biomasses, and (iii) the nature of the assemblages. High phyto- and zooplankton biomasses were observed in years characterized by moderate and severe winters, and low phyto- and zooplankton abundances were recorded in years with mild winters. Moderate/severe and mild winters were favorable for diatoms and gelatinous zooplankton, respectively. Focusing on meroplanktonic species, we explored ecological consequences of decadal variations observed in the Bay of Calvi for resource management. We highlighted parallelisms with other European seas. [less ▲]

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See detailSTARECAPMED (STAtion of Reference and rEsearch on Change of local and global Anthropogenic Pressures on Mediterranean Ecosystems Drifts) - Année 2014. Rapport de recherches.
Richir, Jonathan ULg; Abadie, Arnaud ULg; Binard, Marc ULg et al

Report (2015)

La prise de conscience, par le grand public, de l'impact grandissant de l'homme sur l'océan est récente. Elle se traduit par une volonté politique sincère de correction par des mesures de protection, de ... [more ▼]

La prise de conscience, par le grand public, de l'impact grandissant de l'homme sur l'océan est récente. Elle se traduit par une volonté politique sincère de correction par des mesures de protection, de gestion et de développement durable. Ces politiques, et leurs conséquences économiques et sociétales lourdes, ne peuvent être acceptées que si les décisions se fondent sur des connaissances scientifiques incontestables et montrent des résultats scientifiquement prouvés. Par ailleurs, ces décisions doivent prendre en compte des impacts qui s'opèrent à des échelles de temps et d’espace très variables, de quelques heures à plusieurs dizaines d’années et de quelques mètres à plusieurs milliers de km. En termes politiques, l'information scientifique nécessaire à la prise de décision doit pouvoir couvrir les différentes échelles depuis le niveau local et régional, jusqu'à l'échelle nationale, européenne voire globale, et cela sur le plus long terme possible. Enfin, pour être complète, l'information scientifique sur les écosystèmes marins doit pouvoir répondre à trois questions objectives : (i) quel est l'état? (ii) quelle est l'évolution? (iii) quels sont les mécanismes et processus mis en jeux? et à une question plus prospective : (vi) que peux-t-on prévoir et comment agir? Le présent rapport ne peut pas, à lui seul, refléter toute la richesse du programme STARECAPMED. En 3 ans, STARECAPMED a généré plusieurs centaines de milliers de données nouvelles, ré-exploité plusieurs centaines de publications, rapports et autres enregistrements passés et présents. Le programme a aussi généré de nombreux documents, rapports et mémoires. Enfin, des publications internationales et des thèses de doctorat sont en cours de réalisation ou abouties. Afin de rester lisible, nous avons donc choisi de présenter ce rapport 2014 sous la forme de 12 exemples parmi les travaux en cours. Ces exemples sont traités selon un schéma identique en 4 points simples : (i) La présentation du cas d’étude dans le projet global ; (ii),Les approches innovatrices développées ; (iii),La présentation de résultats marquants ; (iv),Les délivrables de STARECAPMED pour les politiques publiques. [less ▲]

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See detailLe plastique dans les océans, la Méditerranée est-elle menacée?
Collignon, Amandine ULg; Hecq, Jean-Henri ULg; Goffart, Anne ULg

Scientific conference (2015, March 05)

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See detailControl of plankton phenology by climate variation in a Mediterranean coastal area : results from a long-term study (1979-2011)
Goffart, Anne ULg; Collignon, Amandine ULg; Hecq, Jean-Henri ULg

Conference (2015, March)

Physical processes are known to play major roles in marine plankton succession. However, few studies have addressed the mechanisms that regulate phyto- and zooplankton phenology in a context of changing ... [more ▼]

Physical processes are known to play major roles in marine plankton succession. However, few studies have addressed the mechanisms that regulate phyto- and zooplankton phenology in a context of changing climate. Here we used a unique long-term (1979-2011) time series performed in a Mediterranean coastal area unbiased by local anthropogenic pressure (PHYTOCLY station, Bay of Calvi, Corsica) to understand how environmental forcing affects the timing, duration and magnitude of the winter-spring phyto- and zooplankton blooms. We showed that phyto- and zooplankton blooms were bottom-up controlled by the establishment of favourable abiotic conditions, i.e. nutrient replenishment by vertical mixing under specific water temperature and wind conditions, for which thresholds were defined. According to the intensity of winter characteristics, there were strong differences in both the abundance and composition of phyto- and zooplankton during the winter-spring period. Our study is consistent with the recent reports that, when occurring, diatoms peaks were added to the initial phytoplankton groups instead of replacing them. In contrast, zooplankton groups followed a replacement sequence. Based on the results provided by our time series, we show that plankton phenology in the Bay of Calvi is highly controlled by climate variation and exhibits contrasted patterns in response to different scenarios of environmental forcing. [less ▲]

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See detailBiodiversity and seasonal variations of zooneuston in the northwestern Mediterranean Sea
Collard, France ULg; Collignon, Amandine ULg; Hecq, Jean-Henri ULg et al

in Belgian Journal of Zoology (2015), 145(1), 40-48

Neuston includes animals and plants inhabiting the surface layer of the water column. The neustonic area is an accumulation zone for bacteria, organic molecules but also terrestrial debris. The surface ... [more ▼]

Neuston includes animals and plants inhabiting the surface layer of the water column. The neustonic area is an accumulation zone for bacteria, organic molecules but also terrestrial debris. The surface layer is also the air/water exchange region. Therefore, neustonic organisms are directly exposed to several constraints such as wind stress and turbulence. The present study aims to characterize the zooneuston in terms of abundance and biodiversity and to evaluate the impacts of wind stress on neustonic abundance. Zooneustonic and zooplanktonic (depth of 5 meters) samples were collected twice a month between 30th August 2011 and 10th July 2012 in Calvi Bay, Corsica. Zooneustonic biodiversity was high and, notably, twenty-eight copepod genera were identified. Among these copepods, several organisms, belonging to the Pontellidae family, were much more frequent in neuston than in underlying plankton and their abundance depended on wind direction. Taxon-specific trends in seasonal abundance variation were present. For example, individuals of the Acantharia Lithoptera spp. were found in summer whereas the Pontellidae Anomalocera patersoni appeared in winter. Overall, our data provide a first step towards a better knowledge of neuston community structure in the Mediterranean Sea. [less ▲]

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See detailDrivers of the winter–spring phytoplankton bloom in a pristine NW Mediterranean site, the Bay of Calvi (Corsica): A long-term study (1979–2011)
Goffart, Anne ULg; Hecq, Jean-Henri ULg; Legendre, Louis

in Progress in Oceanography (2015), 137

This work is based on a long time series of data collected in the well-preserved Bay of Calvi (Corsica island, Ligurian Sea, NW Mediterranean) between 1979 and 2011, which include physical characteristics ... [more ▼]

This work is based on a long time series of data collected in the well-preserved Bay of Calvi (Corsica island, Ligurian Sea, NW Mediterranean) between 1979 and 2011, which include physical characteristics (31 years), chlorophyll a (chl a, 15 years), and inorganic nutrients (13 years). Because samples were collected at relatively high frequencies, which ranged from daily to biweekly during the winter-spring period, it was possible to (1) evidence the key role of two interacting physical variables, i.e. water temperature and wind intensity, on nutrient replenishment and phytoplankton dynamics during the winter-spring period, (2) determine critical values of physical factors that explained interannual variability in the replenishment of surface nutrients and the winter-spring phytoplankton bloom, and (3) identify previously unrecognized characteristics of the planktonic ecosystem. Over the >30 year observation period, the main driver of nutrient replenishment and phytoplankton (chl a) development was the number of wind events (mean daily wind speed >5 m s-1) during the cold-water period (subsurface water ≤13.5°C). According to winter intensity, there were strong differences in both the duration and intensity of nutrient fertilization and phytoplankton blooms (chl a). The trophic character of the Bay of Calvi changed according to years, and ranged from very oligotrophic (i.e. subtropical regime, characterized by low seasonal variability) to mesotrophic (i.e. temperate regime, with a well-marked increase in nutrient concentrations and chl a during the winter-spring period) during mild and moderate winters, respectively. A third regime occurred during severe winters characterized by specific wind conditions (i.e. high frequency of northeasterly winds), when Mediterranean “high nutrient - low chlorophyll” conditions occurred as a result of enhanced cross-shore exchanges and associated offshore export of the nutrient-rich water. There was no long-term trend (e.g. climatic) in either nutrient replenishment or the winter-spring phytoplankton bloom between 1979 and 2011, but both nutrients and chl a reflected interannual and decadal changes in winter intensity. [less ▲]

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See detailComparative biogeochemistry-ecosystem-human interactions on dynamic continental margins
Levin, Lisa A.; Liu, Kon-Kee; Kay-Christian, Emeis et al

in Journal of Marine Systems (2015), 141

The ocean’s continental margins face strong and rapid change, forced by a combination of direct human activity, anthropogenic CO2-induced climate change, and natural variability. Stimulated by discussions ... [more ▼]

The ocean’s continental margins face strong and rapid change, forced by a combination of direct human activity, anthropogenic CO2-induced climate change, and natural variability. Stimulated by discussions in Goa, India at the IMBER IMBIZO III, we (1) provide an overview of the drivers of biogeochemical variation and change on margins, (2) compare temporal trends in hydrographic and biogeochemical data across different margins (3) review ecosystem responses to these changes, (4) highlight the importance of margin time series for detecting and attributing change and (5) examine societal responses to changing margin biogeochemistry and ecosystems. We synthesize information over a wide range of margin settings in order to identify the commonalities and distinctions among continental margin ecosystems. Key drivers of biogeochemical variation include long-term climate cycles, CO2-induced warming, acidification, and deoxygenation, as well as sea level rise, eutrophication, hydrologic and water cycle alteration, changing land use, fishing, and species invasion. Ecosystem responses are complex and impact major margin services including primary production, fisheries production, nutrient cycling, shoreline protection, chemical buffering, and biodiversity. Despite regional differences, the societal consequences of these changes are unarguably large and mandate coherent actions to reduce, mitigate and adapt to multiple stressors on continental margins. [less ▲]

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See detailValidation de l’indice composition IC Medit dans des masses d’eau côtières méditerranéennes caractérisées par un gradient croissant d’eutrophisation
Goffart, Anne ULg; Andral, Bruno

Report (2014)

The aim of this study is to show the current status of the development and use of the new IC Medit phytoplankton composition index as a sub-metric within the phytoplankton quality element in assessing ... [more ▼]

The aim of this study is to show the current status of the development and use of the new IC Medit phytoplankton composition index as a sub-metric within the phytoplankton quality element in assessing phytoplankton quality in Mediterranean coastal waters. IC Medit uses pigment concentrations determined by HPLC for assessing phytoplankton composition. Focusing on coastal waters of Corsica, we (i) described the seasonal succession of the main phytoplankton groups in reference conditions, (ii) studied responses of phytoplankton groups to well identified drivers, (iii) assessed the shift of the seasonal succession of phytoplankton groups from the reference conditions in impacted areas, (iv) revealed pressure / impact relationships between nutrients and pigments, and (v) established guidelines for sampling and IC MEDIT implementation. IC Medit is an indicator that improves the information provided by chl a in relation to anthropogenic pressures. It provides useful information on water quality, and could be used for management purposes. Nevertheless, due to the lack of information about the relationship between phytoplankton composition and pressures in highly impacted areas, boundary conditions are still to be defined. This should be done in collaboration with statisticians. [less ▲]

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See detailAbundance and variability of jellyfishes in the Bay of Calvi, Corsica
Collignon, Amandine ULg; Hecq, Jean-Henri ULg; Goffart, Anne ULg

Scientific conference (2014, May 29)

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See detailAnnual variation in neustonic micro- and meso-plastic particles and zooplankton in the Bay of Calvi (Mediterranean–Corsica)
Collignon, Amandine ULg; Hecq, Jean-Henri ULg; Galgani, François et al

in Marine Pollution Bulletin (2014), 79(1-2), 293-298

The annual variation in neustonic plastic particles and zooplankton was studied in the Bay of Calvi 23 (Corsica) between 30 August 2011 and 7 August 2012. Plastic particles were classified into three size ... [more ▼]

The annual variation in neustonic plastic particles and zooplankton was studied in the Bay of Calvi 23 (Corsica) between 30 August 2011 and 7 August 2012. Plastic particles were classified into three size classes, small microplastics (0.2–2 mm), large microplastics (2–5 mm) and mesoplastics (5–10 mm). 74% of the 38 samples contained plastic particles of varying composition: e.g. filaments, polystyrene, thin plastic films. An average concentration of 6.2 particles/100 m2 was observed. The highest abundance values (69 particles/100 m2) observed occurred during periods of low offshore wind conditions. These values rose in the same order of magnitude as in previous studies in the North Western Mediterranean. The relationships between the abundance values of the size classes between zooplankton and plastic particles were then examined. The ratio for the intermediate size class (2–5 mm) reached 2.73. This would suggest a potential confusion for predators regarding planktonic prey of this size class. [less ▲]

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See detailControl of phytoplankton bloom by winter conditions in a Mediterranean coastal area : results from a long–term study (1979–2011)
Goffart, Anne ULg; Hecq, Jean-Henri ULg; Legendre, Louis

Poster (2014, February)

The occurrence of a late-winter (February-March) phytoplankton bloom is one of the most unifying features of Mediterranean pelagic ecosystems. However, very little is known about the mechanisms that ... [more ▼]

The occurrence of a late-winter (February-March) phytoplankton bloom is one of the most unifying features of Mediterranean pelagic ecosystems. However, very little is known about the mechanisms that regulate the interannual variability of this phytoplankton bloom in coastal areas. In the present study, we show how winter physical forcing and environmental drivers control surface phytoplankton bloom dynamics in terms of the onset of the bloom, its duration, and its intensity through the analysis of a long-term time series (1979-2011) at the oligotrophic PhytoCly station (Bay of Calvi, Corsica, northwestern Mediterranean). We define a winter intensity index (WII) that integrates wind forcing and water temperature, and discuss strong correlations between WII and both surface nutrient fertilization and phytoplankton bloom intensity. Our study is consistent with reports that phytoplankton blooms can develop in homogenous water columns, and it does not fit the conventional idea that phytoplankton are blooming in temperate oceans because of warming/stratification of the surface layer. [less ▲]

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See detailAtlas du zooplancton des eaux côtières corses, version du 04/06/2014
Hecq, Jean-Henri ULg; Collignon, Amandine ULg; Goffart, Anne ULg

Book published by Travail de synthèse réalisé à la demande de l’Agence de l’Eau RMC, France (2014)

Cet atlas a pour but : de fournir, sous forme de manuel pratique rédigé en français, un guide illustré des principaux taxons zooplanctoniques, des protistes et des méduses aux céphalopodes; d’illustrer la ... [more ▼]

Cet atlas a pour but : de fournir, sous forme de manuel pratique rédigé en français, un guide illustré des principaux taxons zooplanctoniques, des protistes et des méduses aux céphalopodes; d’illustrer la biodiversité et l’écologie des espèces dominantes et de quelques espèces moins fréquentes mais spectaculaires, de synthétiser, sous un graphisme attrayant, les informations permettant l’identification des organismes présentés.   Pour chaque espèce ou groupe d’espèces, une fiche descriptive renseigne le nom latin et la classification. Les éléments morphologiques qui permettent de différencier les espèces présentées sont soulignés. Les fiches sont illustrées par des photos originales réalisées sur du plancton prélevé en Baie de Calvi (Corse), et dans certains cas, de notes sur la biologie et l'écologie. L’atlas du zooplancton des eaux côtières corses s’adresse prioritairement aux gestionnaires de l’environnement, aux techniciens de la mer, aux naturalistes ainsi qu’aux étudiants et enseignants des Masters en Sciences marines. Il est conçu pour être complété par les utilisateurs qui peuvent insérer leurs propres fiches au sein des groupes présentés. [less ▲]

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See detailContrasting patterns of phytoplankton communities in two coastal ecosystems in relation to environmental factors (Corsica, NW Mediterranean Sea)
Garrido, Marie; Koeck, Barbara; Goffart, Anne ULg et al

in Diversity (2014), 6

Corsica Island is a sub-basin of the Northwestern Mediterranean Sea, with hydrological features typical of both oligotrophic systems and eutrophic coastal zones. Phytoplankton assemblages in two coastal ... [more ▼]

Corsica Island is a sub-basin of the Northwestern Mediterranean Sea, with hydrological features typical of both oligotrophic systems and eutrophic coastal zones. Phytoplankton assemblages in two coastal ecosystems of Corsica (the deep Bay of Calvi and the shallow littoral of Bastia) show contrasting patterns over a one-year cycle. In order to determine what drives these variations, seasonal changes in littoral phytoplankton are considered together with environmental parameters. Our methodology combined a survey of the physico-chemical structure of the subsurface water with a characterization of the phytoplankton community structure. Sampling provided a detailed record of the seasonal changes and successions that occur in these two areas. Results showed that the two sampled stations presented different phytoplankton abundance and distribution patterns, notably during the winter–spring bloom period. Successions in pico-, nano-, and microphytoplankton communities appeared mainly driven by differences in the ability to acquire nutrients, and in community-specific growth rates. Phytoplankton structure and dynamics are discussed in relation to available data on the Northwestern Mediterranean Sea. These results confirm that integrated monitoring of coastal areas is a requisite for gaining a proper understanding of marine ecosystems. [less ▲]

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See detailRéseaux de surveillance DCE – Campagne 2012 – District « Corse »
Derolez, Valérie; Sargian, Peggy; Balbi, Yves et al

Report (2013)

Les programmes de surveillance liés à la mise en ╒uvre de la DCE sont coordonnés par le Ministère de l!Ecologie, du Développement Durable, des Transports et du Logement (MEDDTL). Dans chaque bassin ... [more ▼]

Les programmes de surveillance liés à la mise en ╒uvre de la DCE sont coordonnés par le Ministère de l!Ecologie, du Développement Durable, des Transports et du Logement (MEDDTL). Dans chaque bassin hydrographique ce sont les Agences de l!eau qui, avec l!Etat, prennent en charge l!application, la mise en ╒uvre de ces réseaux. Sur la façade méditerranéenne, Ifremer a assuré pour le compte du Schéma Directeur des Données sur l!Eau la maîtrise d!ouvrage de la troisième campagne du contrôle de surveillance, en coordonnant l!ensemble de l!acquisition des données et de leur synthèse en collaboration avec de nombreux partenaires : les Universités, des bureaux d!études, des structures locales de gestion et les services de l!Etat. Les résultats de cette troisième campagne de contrôles de surveillance DCE permettent d!avoir une bonne vision d!ensemble de la qualité des eaux littorales à l!échelle du district. Outre le suivi de la contamination chimique dans la matière vivante, cette campagne s!est enrichie d!un suivi dans la colonne d!eau avec l!utilisation d!échantillonneurs passifs. En eaux côtières, une seule masse d'eau est déclassée en raison de l'état chimique. Tous les éléments biologiques sont caractérisés par un très bon/bon état. Pour les eaux de transition, leur qualité biologique est déclassée par les macrophytes et/ou le phytoplancton. La classification officielle de l!état des masses d!eau du district se fera par le Système d!Evaluation de l!Etat des Eaux (SEEE), sous la responsabilité technique de l!Onema. [less ▲]

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See detailL’indice de composition phytoplanctonique IC Medit : état d’avancement, besoins et perspectives
Goffart, Anne ULg

Scientific conference (2013, October)

L'indice de composition phytoplanctonique IC Medit a été développé dans le cadre de projets soutenus par l'ONEMA. Il utilise la signature pigmentaire du phytoplancton comme méthode de détermination rapide ... [more ▼]

L'indice de composition phytoplanctonique IC Medit a été développé dans le cadre de projets soutenus par l'ONEMA. Il utilise la signature pigmentaire du phytoplancton comme méthode de détermination rapide de la composition des communautés. L'objectif de la communication est de présenter et discuter l'évolution récente de l’indice. [less ▲]

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See detailSynthèse des réseaux de surveillance soutenus par l’Agence de l’Eau Rhône Méditerranée Corse - eaux côtières de Méditerranée - juin 2013
Boissery, Pierre; Tomasino, Corinne; Giraud, Anaïs et al

Report (2013)

L’Agence de l’Eau Rhône Méditerranée Corse présente son premier atlas de la qualité des eaux marines issu des réseaux de surveillance des eaux côtières. Les résultats des mesures chimiques et biologiques ... [more ▼]

L’Agence de l’Eau Rhône Méditerranée Corse présente son premier atlas de la qualité des eaux marines issu des réseaux de surveillance des eaux côtières. Les résultats des mesures chimiques et biologiques, ainsi que l'analyse des pressions, montrent que les zones littorales et marines dégradées concernent 21% du linéaire méditerranéen et 19% de la mer, de la côte à 1 mille au large. Cette première édition regroupe les informations acquises sur la biologie (état de la faune, de la flore et de la biocénose), la chimie (contamination chimique, écotoxicologie et contamination de la chaîne trophique) et les pressions (activités de plaisance, usages en mer, rejets polluants et apports des cours d’eau côtiers) qui affectent le littoral. L'atlas couvre principalement la zone côtière mais il va s'étendre rapidement sur les eaux marines du large. [less ▲]

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See detailEtude de la variation saisonnière des quantités de microplastiques de la zone de Calvi
Collignon, Amandine ULg; Hecq, Jean-Henri ULg; Goffart, Anne ULg

Report (2013)

L’étude a pour objectif de collecter des données d’abondance de microplastiques au cours d’un cycle annuel dans une zone peu impactée par l’activité anthropique locale, la Baie de Calvi (Corse). Une ... [more ▼]

L’étude a pour objectif de collecter des données d’abondance de microplastiques au cours d’un cycle annuel dans une zone peu impactée par l’activité anthropique locale, la Baie de Calvi (Corse). Une attention particulière est portée aux relations entre l’abondance des microplastiques et celle du zooplancton, ainsi qu’à la nature des organismes qui colonisent les microplastiques. [less ▲]

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