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Assessment of the ecological status of Mediterranean French coastal waters as required by the Water Framework Directive using the Posidonia oceanica Rapid Easy Index: PREI ArchiMer
Gobert, Sylvie; Sartoretto, Stephane; Rico-raimondino, Valerie; Andral, Bruno; Chery, Aurelia; Lejeune, Pierre; Boissery, Pierre.
This paper describes the PREI (Posidonia oceanica Rapid Easy Index), a method used to assess the ecological status of seawater along Mediterranean French coasts. The PREI was drawn up according to the requirements of the Water Framework Directive (WFD 2000/60/EC) and was tested on 24 and 18 stations in PACA (Provence-Alpes-Cotes d'Azur) and Corsica, respectively. The PREI is based on five metrics: shoot density, shoot leaf surface area, E/L ratio (epiphytic biomass/leaf biomass), depth of lower limit, and type of this lower limit. The 42 studied stations were classified in the first four levels of status: high, good, moderate and poor. The PREI values ranged between 0.280 and 0.847; this classification is in accordance with our field knowledge and with our...
Tipo: Text Palavras-chave: Water Frame Directive; Ecological Quality Ratio; Coastal water; Mediterranean Sea; Posidonia oceanica; Seagrass.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/publication-6949.pdf
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Fine-Scale Cartography of Human Impacts along French Mediterranean Coasts: A Relevant Map for the Management of Marine Ecosystems ArchiMer
Holon, Florian; Mouquet, Nicolas; Boissery, Pierre; Bouchoucha, Marc; Delaruelle, Gwenaelle; Tribot, Anne-sophie; Deter, Julie.
Ecosystem services provided by oceans and seas support most human needs but are threatened by human activities. Despite existing maps illustrating human impacts on marine ecosystems, information remains either large-scale but rough and insufficient for stakeholders (1 km² grid, lack of data along the coast) or fine-scale but fragmentary and heterogeneous in methodology. The objectives of this study are to map and quantify the main pressures exerted on near-coast marine ecosystems, at a large spatial scale though in fine and relevant resolution for managers (one pixel = 20 x 20 m). It focuses on the French Mediterranean coast (1,700 km of coastline including Corsica) at a depth of 0 to 80 m. After completing and homogenizing data presently available under...
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Ano: 2015 URL: http://archimer.ifremer.fr/doc/00275/38600/37129.pdf
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Guide méthodologique pour la surveillance des rejets urbains dans les eaux littorales réunionnaises ArchiMer
Andral, Bruno; Cambert, Harold; Turquet, Jean; Ropert, Michel; Duval, Magali; Vermenot, Coralie; Boissery, Pierre; Talec, Pascal.
Les efforts engagés en matière de lutte contre la pollution domestique au cours des vingt dernières années ont permis de réduire de façon significative les rejets directs et non épurés à la mer. Malgré cela, les rejets urbains des agglomérations côtières constituent encore de nos jours l'une des principales contributions à la pollution tellurique du littoral réunionnais. Les eaux urbaines, et en particulier les eaux usées rejetées bien que traitées, peuvent générer des pollutions ou des nuisances dans l’environnement. L’impact de ces apports doit être apprécié au regard de la vie marine et des usages littoraux, notamment lorsqu’ils sont situés à proximité de récifs coralliens très sensibles à toute modification du milieu. Afin d'homogénéiser les pratiques...
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Ano: 2013 URL: http://archimer.ifremer.fr/doc/00123/23471/21299.pdf
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Live benthic foraminiferal faunas from the French Mediterranean Coast: Towards a new biotic index of environmental quality ArchiMer
Barras, Christine; Jorissen, Frans J.; Labrune, Celine; Andral, Bruno; Boissery, Pierre.
In this study, living (Rose Bengal stained) foraminiferal faunas from 31 stations along the entire French Mediterranean Sea coast except Corsica have been analysed. In the context of the Water Framework Directive, the aim was to develop a biotic index to evaluate the benthic ecosystem quality. Therefore, different faunal parameters (diversity indices, wall structure proportion, and indicative species groups) have been tested to determine their relevance as indicators of environmental conditions. The best results are obtained with a biotic index based on the relative proportion of stress-tolerant taxa. For ecosystem quality evaluation, it is essential to distinguish between natural and anthropogenic eutrophication phenomena. In order to do so, we applied a...
Tipo: Text Palavras-chave: Coastal Mediterranean Sea; Foraminiferal faunas; Indicative species; Tolerant species; Biotic index; Water Framework Directive.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00162/27312/28371.pdf
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Monitoring Marine Habitats With Photogrammetry: A Cost-Effective, Accurate, Precise and High-Resolution Reconstruction Method ArchiMer
Marre, Guilhem; Holon, Florian; Luque, Sandra; Boissery, Pierre; Deter, Julie.
Underwater photogrammetry has been increasingly used to study and monitor the three-dimensional characteristics of marine habitats, despite a lack of knowledge on the quality and reliability of the reconstructions. More particularly, little attention has been paid to exploring and estimating the relative contribution of multiple acquisition parameters on the model resolution (distance between neighbor vertices), accuracy (closeness to true positions/measures) and precision (variability of positions/measures). On the other hand, some studies used expensive or cumbersome camera systems that can restrict the number of users of this technology for the monitoring of marine habitats. This study aimed at developing a simple and cost-effective protocol able to...
Tipo: Text Palavras-chave: Underwater photogrammetry; Resolution; Accuracy; Precision; 3D habitat mapping; Marine ecology.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00501/61272/64848.pdf
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Pressions et état de la contamination chimique marine dans le voisinage d'une grande ville côtière méditerranéenne, le cas de Marseille ArchiMer
Sauzade, Didier; Andral, Bruno; Gonzalez, Jean-louis; Pairaud, Ivane; Verney, Romaric; Zebracki, Mathilde; Cadiou, Jean-francois; Boissery, Pierre.
Marine pollution is one of the priority issues of the Mediterranean environment. This pollution comes from multiple sources including large coastal cities which are considered as hot-spots. The METROC project objective is to assess gross and net chemical contaminant flows related to large Mediterranean coastal cities, with a first application to the Marseilles area. The methodology consists of i) assessing the present state of the chemical contamination of the coastal environment; ii) assessing inputs to the sea from sewage, small rivers and storm water run-off; and iii) modelling the fate of some key contaminants, in order to attempt to establish a balance between inputs and exports towards the open sea. This short article presents a synthesis on these...
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Ano: 2009 URL: http://archimer.ifremer.fr/doc/00070/18164/15721.pdf
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Utilisation des échantillonneurs passifs pour l'évaluation de la contamination chimique des eaux marines: application à la Méditerranée française ArchiMer
Gonzalez, Jean-louis; Guyomarch, Julien; Tapie, Nathalie; Munaron, Dominique; Budzinski, Helene; Andral, Bruno; Boissery, Pierre.
Les possibilités d'utilisation d'échantillonneurs passifs pour l'évaluation de la contamination chimique des masses d'eau ont été testées dans le cadre du projet PEPS. L'objectif principal était d'évaluer à "grande échelle" et dans différentes conditions de terrain (20 masses d'eau côtières réparties sur l’ensemble de la façade méditerranéenne française) l'opérationnalité de ces systèmes en terme de réduction des coûts, fiabilité et rapidité d'obtention des résultats, mais aussi en terme de facilité de mise en oeuvre (par du personnel non spécialisé, mais préalablement formé).
Tipo: Text Palavras-chave: Monitoring; Western Mediterranean; Trace Elements; Sampling Methods.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00085/19601/17239.pdf
Registros recuperados: 7
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