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Registros recuperados: 32
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A new recent marine Ostracoda species (Hemicytheridae) from Brazil Iheringia, Sér. Zool.
Coimbra,João Carlos; Bergue,Cristianini Trescastro.
Ostracods were collected on Sargassum sp. from the littoral of São Sebastião, São Paulo State, southeastern Brazil. A new species, Aurila ornellasae, is illustrated and described based on a population with various instars and adult specimens. This is the first living species of this genus described from Brazil. A brief discussion on the systematics of the genus Aurila Pokorný, 1955 and its allied genera is presented.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hemicytherinae; Aurila; Sargassum; São Paulo; Littoral.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212003000300003
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Abundance of cladocerans in the littoral regions of two environments of the Upper Paraná River floodplain, Mato Grosso do Sul, Brazil BJB
ROSSA,D. C.; LANSAC-TÔHA,F. A.; BONECKER,C. C.; VELHO,L. F. M..
The abundance of cladocerans recorded in plankton samples from the littoral regions of two enviroments (Baía River and Guaraná lake), the Upper Paraná River floodplain and some limnological variables important in controlling their abundance were investigated at three sites in the lake and two in the river, from March/93 to January/94. Abundance was highest in the lake, chiefly during high water. Bosminidae dominated in both environments and hydrological periods (high and low water). Chydoridae were more important in the lake, and Sididae in the river. A higher number of Pearson's correlations significative (p < 0.03) between the densities of the ten most important species and the limnological variables was observed in the river. This suggests that...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cladocerans; Littoral; Floodplain; Tropical.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082001000100007
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Aérosols côtiers dans le nord de la Manche ArchiMer
Flament, P; Lepretre, A; Noel, S; Auger, Y.
Dix-huit prélèvements d'aérosols ont été effectués en Manche Nord, soit en bordure de mer, soit à quelques milles au large, à l'aide d'un impacteur à cascade (5 étages). L'ensemble des données (concentrations de 8 éléments répartis en 6 classes granulométriques successives) est exploité par analyse factorielle des correspondances. Celle-ci permet de mettre en évidence de larges déformations dans les spectres granulométriques pour les éléments traceurs marin et terrestre (Na et Al). En opposition, les métaux résultant d'activité anthropique (Fe, Pb, Zn, Mn), ont des comportements beaucoup plus typés. Parmi ceux-ci, la présence du manganèse sur le site paraît être indépendante de celle des autres métaux et imputable à une seule source. Pb, Fe, Zn et cuivre...
Tipo: Text Palavras-chave: Aérosols; Éléments-traces; Analyse par correspondance; Distribution granulométrique; Littoral; Aerosols; Trace elements; Correspondence analysis; Size distribution; Coastal.
Ano: 1987 URL: http://archimer.ifremer.fr/doc/00110/22082/19723.pdf
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Aquaculture and marine protected areas: Potential opportunities and synergies ArchiMer
Le Gouvello, Raphaela; Hochart, Laure-elise; Laffoley, Dan; Simard, Francois; Andrade, Carlos; Angel, Dror; Callier, Myriam; De Monbrison, David; Fezzardi, Davide; Haroun, Ricardo; Harris, Alasdair; Hughes, Adam; Massa, Fabio; Roque D'Orbcastel, Emmanuelle; Soto, Doris; Stead, Selina; Marino, Giovanna.
To meet the Convention on Biological Diversity's Aichi Target 11 on marine biodiversity protection and Aichi Target 6 on sustainable fisheries by 2020, as well as the Sustainable Development Goal (SDG) 2 on food security and SDG 14 on oceans by 2030, there is an urgent need to rethink how best to reconcile nature conservation and sustainable development. This paper argues for effective governance to support processes that apply principles of sustainable development and an ecosystem approach to decide about economic activities at sea such as aquaculture. It describes opportunities, benefits and synergies between aquaculture and MPAs as a basis for wider debate. The scope is not a comprehensive analysis of aquaculture and MPAs, but rather to present examples...
Tipo: Text Palavras-chave: Aquaculture; Ecosystem approach; Environmental impact assessment; Littoral; Marine protected area; Ocean; Sublittoral.
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00398/50969/51848.pdf
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Cartographie des faciès bio-sédimentaires du Bassin d’Arcachon à partir de l’imagerie FORMOSAT-2 ArchiMer
Lafon, Virginie; Marieu, Vincent; Butel, Rémi; Dehouck, Aurélie; Froidefond, Jean-marie; Trut, Gilles.
This study presents the first results of an ongoing research program that aims to derive thematic maps of the intertidal lagoon of Arcachon (SW Atlantic coast of France) from space imagery. At this stage, we present the results of the tests performed on Formosat-2 imagery. Several classification strategies have been tried with the aim to discriminate the sedimentary facies and the main species of the lagoon. The classes calculated by an optimized unsupervised clustering method, based on simulated annealing global minimization technique, were used to train a supervised classification algorithm. This approach allowed us to derive a bio-sedimentary map which overall accuracy is about 84%. Also, this method has the advantage of describing the fraction of...
Tipo: Text Palavras-chave: Télédétection; Cartographie; Littoral; Classification optimisée; Recuit simulé.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/00254/36572/35110.pdf
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Coastal Zone Management in the Mediterranean: Legal and Economic Perspectives AgEcon
Markandya, Anil; Arnold, S.; Cassinelli, Mariaester; Taylor, Tim J..
This paper examines existing measures taken to protect the coastal zones of the Mediterranean Sea and assesses their success. A summary of the main pressures facing these zones is given, followed by an analysis of the legislation covering coastal zone development in ten countries: Algeria, Croatia, Egypt, France, Israel, Italy, Malta, Spain, Tunisia and Turkey. We find that not all of these states have legislation specifically covering coastal zones, but there is concern in all areas that the legislation is not working, We also look at the costs and benefits of controlling coastal development. Firstly, a literature review of valuation studies identifies a range of values placed on developed and undeveloped coastline for both users and local property...
Tipo: Working or Discussion Paper Palavras-chave: Coastal Zone Management; Legislation; Littoral; Mediterranean; Recreation; Environmental Economics and Policy; Q5.
Ano: 2009 URL: http://purl.umn.edu/54290
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Contrat aménagement de la zone de marais : conséquence de l'aménagement agricole sur les autres activités - Compte rendu final de la recherche Mars 1989 ArchiMer
Chevalier, Claude; Heral, Maurice; Razet, Daniel.
Dans le contexte de développement agricole très actif des trente dernières années les marais atlantiques littoraux qui couvrent, pour leur partie endiguée environ 300.000 ha. ont été et continuent d'être soumis à des transformations importantes qui influent sur la circulation et la qualité des eaux de surface. Ce développement, visant à une amélioration de la productivité et à une meilleure intégration de l' activité agricole dans les grands processus économiques, s'est appuyé, là comme ailleurs, sur les intensifications fourragère et surtout céréalière. L'adaptation de ce modèle général aux caractéristiques écologiques du milieu nécessitait de limiter les effets des excès d'eau hivernaux sur la mise en culture ainsi que ceux de la sécheresse estivale sur...
Tipo: Text Palavras-chave: Marais atlantique; Littoral; Agriculture; Conchyliculture; Impact; Compatibilité; Charente Maritime Dep..
Ano: 1989 URL: http://archimer.ifremer.fr/doc/00071/18235/15795.pdf
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Esquisse d'un bilan écologique provisoire de l'impact de la marée noire de l"Amoco-Cadiz" sur le littoral ArchiMer
Chasse, C..
The wreckage of the tanker "AMOCO CADIZ" on the reefs of PORTSALL was the fourth oil spill in ten years on the coast of Brittany : it also is the largest known oil spill in the world. The patches at sea were driven eastward by westerly winds from March 17 to March 23. 140 Km of coast line was polluted. The oil spreaded more slowly towards the north west, south and north west where it spoiled some 375 Km of touristic sea coast and important fishing grounds. The coastline is six kilometers wide ; it includes islands and large reefs. The local tidal currents are very strong and reach more than three knots, during spring tides which may rise up to nine meters in a rough sea conditions. The turbulence of the water soon disper­sed the slicks and mixed the oil...
Tipo: Text Palavras-chave: Marée noire; AMOCO CADIZ; Bretagne; Bilan écologique; Littoral; Oil spill; AMOCO CADIZ; Brittany; Ecological assessment; Shoreline.
Ano: 1978 URL: http://archimer.ifremer.fr/doc/00306/41722/40933.pdf
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Etude de la contamination microbiologique du milieu littoral : identification des sources de contamination fécale et évaluation de la persistance des bactéries entériques dans l'environnement ArchiMer
Gourmelon, Michele.
La contamination de l’environnement par des bactéries ou des virus d’origine fécale par le biais des rejets résultant des activités urbaines ou agricoles constitue un risque important pour la santé humaine et une préoccupation pour la pérennité de certains usages en zone littorale. La bactérie Escherichia coli (E. coli) a été retenue comme indicateur de contamination fécale pour évaluer la qualité sanitaire des zones conchylicoles et des zones de baignade et pour établir leur classification. L’étude des bactéries entériques et des marqueurs de l’origine des contaminations fécales dans l'environnement littoral constitue l’essentiel de mes activités de recherche à l’Ifremer. C’est ce travail qui sera présenté lors de cette soutenance. J'’ai tout d’abord...
Tipo: Text Palavras-chave: Contamination microbiologique; Littoral; Bactéries entériques; Environnement; Contaminatin fécale.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00256/36764/35369.pdf
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Flux et usages de l'eau de mer dans les marais salés endigués Charentais : Cas du marais salé endigué de l'île de Ré ArchiMer
Paticat, Francois.
The aim of the study is to determine how seawater is used in Ré island marine ponds (Charente-Maritime, France). Thus, we assessed the ecosystem functioning, estimated its historical evolution and determined the most suitable ways to improve current management processes. The knowledge of seawater management is essential to ensure wetland future and meet the numerous interests of wetland stakeholders, especially in term of seawater sharing. Consequently, it is necessary to consider the Ré island marine embanked wetland through its natural as well as human characteristics. Our work followed two research axes. First, a survey and a description of wetland activities were realized through their management types and their water use features, knowing that human...
Tipo: Text Palavras-chave: Ré Island; Activities; Management; Saltwater; Flows; Coastline; Île de Ré; Activités; Gestion; Eau de mer; Flux; Littoral.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/these-4518.pdf
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Guide méthodologique d’aide à la prise en compte des problématiques maritimes dès le diagnostic des SCOT côtiers ArchiMer
Rodriguez, Thibault; Fourrier, Adeline; Mazouni, Nabila; Rey-valette, Helene; Roussillon, Jean Philippe; Laugier, Thierry; Loubersac, Lionel.
After a reminder on the program SYSCOLAG (Coastal and Lagoons Systems), of the regulatory and legislative context in territorial economic planning on the coast, we describe the structure of the developed methodological tool. We clarify then the method according to its three main trunk roads: effects of the activities and uses on the economy of the territory, the effects of the activities and uses on the natural environment and the living environment, the evaluation of the interactions between activities and uses. We apply the method exposed in a frame demonstrator by taking the scenario of the lagoon and coastal territory of the Thau Basin (Hérault). A set of appendices, including in particular evaluation grids are supplied with support for the...
Tipo: Text Palavras-chave: Développement durable; Approche participative et pluridisciplinaire; SCOT; Volet Maritime; Diagnostic; Indicateur; Mer; Littoral; Impact environnemental; Effet socio-économique; Interaction; Activité; Usage.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/00189/30058/28545.pdf
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Hydrologie et populations phytoplanctoniques dans le panache de la Loire et en Baie de Vilaine en période estivale : résultats de la campagne VILOIR. ArchiMer
Lunven, Michel; Guillaud, Jean-francois; Crassous, Marie Pierre; Youenou, Agnes; Gohin, Francis; Huret, Martin; Danielou, Marie-madeleine; Kerouel, Roger; Labry, Claire; Aminot, Alain.
Inscrite dans le cadre du Grand Défi Golfe de Gascogne, la campagne VILOIR a été réalisée du 19 au 26 Juin 2003 à bord du Côtes de la Manche avec pour objectif l’étude en période estivale des structures hydrologiques et phytoplanctoniques des panaches de la Loire et de la Vilaine. Elle fait suite, sur la même thématique, à la campagne hivernale NUTRIGAS (2001) et à la campagne printanière GASPROD (2002).
Tipo: Text Palavras-chave: Surveillance; Littoral; Phytoplancton; Phycotoxines; Bretagne; Pays de Loire.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/00144/25494/23648.pdf
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La montée du niveau de la mer : conséquences et anticipations d’ici 2100, l’éclairage de la prospective ArchiMer
Lacroix, Denis; Mora, Olivier; De Menthiere, Nicolas; Bethinger, Audrey.
L’interface terre-mer, prise au sens large, est un espace fragile, convoité et soumis à de multiples pressions sans qu'il n’y ait de vision d'ensemble des populations et des activités qui s'y développent, ni de maîtrise globale des multiples décisions concernant ce milieu. Or la montée du niveau de l'océan apparaît comme une des pressions majeures de ce siècle. Son ampleur et ses effets à long terme sont difficiles à identifier, et donc, à anticiper. Toutefois, si les causes sont encore incomplètement analysées et comprises, les premiers effets sont déjà observables sous diverses formes et sur de nombreux sites. Les impacts de cette élévation sont encore faibles aujourd'hui, mais les projections portent à penser que l’élévation du niveau de la mer va...
Tipo: Text Palavras-chave: Montée du niveau de la mer; Subsidence; Deltas; Inondation; Littoral; Risques côtiers.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00598/70975/69207.pdf
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La qualité du milieu marin littoral normand du Tréport au Mont - Saint - Michel ArchiMer
Grouhel-pellouin, Anne; Etourneau, Claude; Lamort, Laure.
This report presents an evaluation of Normandy's coastal quality. Datas for this evaluation come from chemical, microbial and phytoplanktonic monitoring networks carried out by IFREMER in the marine environment, microbial survey of marine swimming and shellfish collecting areas carried out by DDASS (Health Office), analysis of local sewage treatment systems conduced by SATESE, and surveys of river's water quality carried out by DDE (Equipment Office). Among each area, pollution sources are identified and present or future actions to improve marine water quality are listed according to shellfishing or swimming vocation of these areas.
Tipo: Text Palavras-chave: Normandie; Qualité; Littoral; Réseaux de surveillance; Physico-chimie; Microbiologie; Phytoplancton; Radioactivité; Normandy; Quality; Coastal Area; Monitoring Network; Chemical; Microbiology; Phytoplankton; Radioactivity.
Ano: 1996 URL: http://archimer.ifremer.fr/doc/00102/21347/18970.pdf
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Les cellules départementales de lutte contre la pollution marine. Leurs relations avec l'IFREMER ArchiMer
Leon, Michel.
Les cellules de lutte contre la pollution marine, créées en 1972 ont pour principales missions l'observation du milieu, puis, à partir des données recueillies, l'élaboration d'une r églementation locale, ainsi que la réalisation d'études systématiques des facteurs ayant une influence sur la pollution et sa propagation, notammen t la courantologie, ou d'études visant à définir les zones optima les de rejets par les émissaires et la capacité d'absorption par le milieu marin littoral. Ce rapport retrace l'évolut ion des cellules, les problèmes qu'elles ont à résoudre, leur participation a u fonctionnement des divers réseaux de surveillance de la qualité des eaux littorales et la coopération qui s'est ainsi établie entre elles et l'IFREMER.
Tipo: Text Palavras-chave: Pollution marine; Littoral; Cellules; Intervention; Surveillance; Réseaux.
Ano: 1990 URL: http://archimer.ifremer.fr/doc/00426/53734/54613.pdf
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Les conflits d'usage de l'espace littoral martiniquais ArchiMer
Thebaud, Olivier.
This report presents, in two parts, the results of a study carried out on the coast of Martinique, during 1993. The first part presents the evolution of perceptions and uses of coastal areas, linked to the socio-economic transformations of the island. Completing this presentation, based on the analysis of management plans from different periods, an overview of the recent state of occupation of coastal areas in Martinique is also given. The second part presents four case studies of conflictual situations concerning access to coastal areas, on l and and at sea, considering differents types of activities and decision-making processes. For each case study, an investigation has been conducted to identify implied actors, their motivations and strategies, as well...
Tipo: Text Palavras-chave: Regulation; Decision making process; Conflicts; Martinique; Coast; SEM; Réglementation; Processus de décision; Conflits; Martinique; Littoral.
Ano: 1994 URL: http://archimer.ifremer.fr/doc/1994/rapport-2140.pdf
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Littoral Pycnogonida from Oman Naturalis
Stock, Jan H..
Sixteen species of Pycnogonida are recorded from littoral or very shallow waters (0-3 m) of the coast of Oman. Four species are new to science: A. lagenaria, Ammothella omanensis, Achelia boschi, and Pycnogonum moolenbeeki. Since up to now no littoral Pycnogonida have been recorded from the Arabian peninsula, all other species are new to this region, with the exception of one which was recorded from deeper waters off Oman before. For some of them the range is considerably extended.
Tipo: Article / Letter to the editor Palavras-chave: Pycnogonida; Littoral; Oman; Taxonomy.
Ano: 1992 URL: http://www.repository.naturalis.nl/record/504092
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Manuel pour l’utilisation des données REPHYTOX. Informations destinées à améliorer la compréhension des fichiers de données REPHYTOX mis à disposition des scientifiques et du public ArchiMer
Ifremer, ODE/VIGIES, Coordination REPHY-REPHYTOX & Cellule Quadrige.
Le REPHYTOX (Réseau de Surveillance des Phycotoxines dans les organismes marins) est un réseau mis en oeuvre par Ifremer. Les données acquises par le REPHYTOX sont bancarisées depuis 1987 dans la base de données Quadrige. Ce manuel est destiné aux utilisateurs des données REPHYTOX, qui sont disponibles à partir de plusieurs supports, en particulier : Quadrige, SURVAL et SEANOE. La base de données Quadrige est une composante du Système d'Information sur l'Eau (SIE) et a pour mission la gestion et la valorisation des données issues de nombreux réseaux de surveillance du littoral. L’accès direct aux données REPHYTOX via l’applicatif Quadrige est réservé aux utilisateurs autorisés. Le produit SURVAL est un des outils appartenant au SI Quadrige, et met à...
Tipo: Text Palavras-chave: REPHYTOX; Données; Quadrige; SURVAL; SEANOE; DOI; Phycotoxines; DSP; PSP; ASP; Palytoxines; Coquillages; Littoral.
Ano: 2017 URL: http://archimer.ifremer.fr/doc/00409/52018/52676.pdf
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METROC : évaluation des apports de contaminants chimiques de la métropole marseillaise au milieu marin ArchiMer
Jany, Cassandre; Zebracki, Mathilde.
METROC program (part of the MEDICIS program about study and fate of the chemical contamination in Western Mediterranean Sea) focuses on sources and wastes issued by large metropolis, with the agglomeration of Marseille as a pilot site. This report presents the results of a sampling campaign in rivers and urban discharges in Marseille and on different types of contaminants (metals, PAH, PCB and PBDE) in dissolved and particulate phases, in dry and rain periods. Results show that concentrations of pollutants are greater in Aygalades river (metals and organic contaminants) and in Emissaire 2, sewer overflows and torrents. From the results of the analysis and discharge given by the DEA, we estimated partially the flows of pollutants which show that the first...
Tipo: Text Palavras-chave: Mer Méditerranée; Littoral; Apports urbains; Marseille; Contamination chimique; Métaux; HAP; PCB; PBDE; Concentrations; Mediterranean Sea; Coast; Urban waste; Marseilles; Chemical contamination; Metals; PAH; PCB; PBDE; Concentration.
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00116/22692/20431.pdf
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Nouveaux outils au service du littoral : la topographie par télémétrie laser aéroportée ArchiMer
Populus, Jacques; Deshoux, Vincent.
Lever la topographie de la zone côtière à l’aide de la technique du télémètre laser (Lidar) aéroporté présente de multiples avantages par rapport aux méthodes classiques : la mesure est rapide, dense et précise, autorisant la cartographie du relief de zones d’estran difficilement accessibles aux moyens classiques. L’Ifremer et la Cellule de Mesures et de Bilans ont organisé en 2002 la couverture de plusieurs sites du littoral ouest de la France. La mise en oeuvre des levés et la validation des données sont rapidement exposés, ainsi que la précision que l’on peut en attendre, sur sol nu et végétation basse. Au plan des applications, la cartographie des habitats, objet du réseau "Réseau benthique" (Rebent, aujourd’hui opérationnel en Bretagne), utilise...
Tipo: Text Palavras-chave: Altimétrie; Bathymétrie; Lidar; Photogrammétrie; Littoral; Zone côtière; Marée; Modélisation hydrodynamique; MNT.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/00151/26251/24333.pdf
Registros recuperados: 32
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