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Acquisition de données sur l'expansion de Caulerpa taxifolia et Caulerpa racemosa en rade d'Hyères et en rade de Toulon (France) ArchiMer
Belsher, Thomas; Lunven, Michel; Le Gall, Erwan; Caisey, Xavier; Dugornay, Olivier; Mingant, Christian.
The oceanographic cruise Califa 2000, as the previous cruise, which concerned the "Parc National de Port-Cros", had for its principal objective to furnish some elements susceptible to help in the control of Caulerpa taxifolia expansion and in the protection of particularly sensitive areas (national parks, patrimonial sectors, regions of socio-economic importance). The cruise lasted from the 4th to the 21st of September 2000 in the rade d'Hyeres, Porquerolles island included, and the rade of Toulon. This detailed prospection gives a location of C. taxifolia and C. racemosa, a new invasive seaweed. (C) 2003 Editions scientifiques et medicales Elsevier SAS. All rights reserved.
Tipo: Text Palavras-chave: Rade de Toulon; Rade d' Hyeres; Cartography; Caulerpa racemos; Caulerpa taxifolia; Invasive species; Rade de Toulon; Rade d'Hyères; Cartographie; Caulerpa racemosa; Caulerpa taxifolia; Espèces invasives.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/publication-520.pdf
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Activité et production des navires français – Façade "Manche est" et Façade "Loire-Gironde" ArchiMer
Delpech, Jean-paul; Mehault, Sonia; Rostiaux, Emilie; Leaute, Jean-pierre; Leblond, Emilie; Demaneche, Sebastien; Coppin, Franck; Mahe, Kelig; Vaz, Sandrine.
This report is a result of a contract between Ifremer and the French Ministry of Industry. The aim was to provide map the fisheries activity and landings for french fishing vessels, located in the Eastern Channel and the Bay of Biscay during the year 2005. Two areas have been selected: - the "Eastern Channel" area, including 7 administrative departments : Nord, Pas-de-Calais, Somme, Seine-Maritime, Eure, Calvados and Manche. - the "Loire-Gironde" area, including 4 administrative departments : Loire-Atlantique, Vendée, Charente-Maritime and Gironde.
Tipo: Text Palavras-chave: Fishing fleets; Fishing gears; Bay of Biscay; Eastern Channel; Mapping; Landings; Fisheries activity; Flottilles; Pêche; Engins; Golfe de Gascogne; Manche est; Cartographie; Production; Activité halieutique.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/rapport-6645.pdf
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An underwater tracking system for mapping marine communities: an application to Posidonia oceanica ArchiMer
Sgorbini, S; Peirano, A; Cocito, S; Morgigni, M.
The GPS intelligent buoy is a pot-table underwater tracking system consisting of four buoys and one pinger. The pinger was mounted on an underwater vehicle driven by a Scuba diver and used to map the limits of a Posidonia oceanica meadow. To test the accuracy of the method the system was tried out on different types of limits and on healthy and regressed part of the meadow from 2 to 25 m of depth. The time of track acquisition (1 point per second), the recording speed (1 km h(-1)) and the mapping scale (more than 1:500) indicated that the proposed method may be successfully integrated with conventional systems for mapping marine communities. (C) 2002 Ifremer/CNRS/IRD/Editions scientifiques et medicales Elsevier SAS. All rights reserved.
Tipo: Text Palavras-chave: Cartographie; Phanérogames marines; Posidonia oceanica; Méditerranée; Mapping; Seagass; Posidonia oceanica; Mediterranean Sea.
Ano: 2002 URL: http://archimer.ifremer.fr/doc/00322/43314/42940.pdf
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Apports des hautes résolutions spatiales pour l'étude et la cartographie des algues vertes. Application à la grève de St-Michel(22) ArchiMer
Ruiz, Olivier.
The increasing amounts of agricultural effluents associated with particular hydrodynamical locations are resulting in strong proliferations of suspended green algae Ulva lactuca. During ebb tide, the algae deposit on beaches, creating a nuisance for both tourism and fishermen. Biomass estimates are hence needed both for understanding the phenomenon and for measuring its magnitude. During the spring tide period of September 1993, two high resolutions digital sensors were run jointly on the French A.R.A.T (Remote Sensing and Atmospheric Research Aircraft). A pushbroom instrument called RAMI (run by C.N.E.S.) with spectral bands identical to those of S.P.O.T. and the Canadian C.A.S.I (which possesses a lot of spectral bands) acquired images over the sandy...
Tipo: Text Palavras-chave: Télédetection; Green seaweed; Cartography; Télédetection; Algue verte; Cartographie.
Ano: 1994 URL: http://archimer.ifremer.fr/doc/1994/rapport-1647.pdf
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Atlas électronique web de la pêche palangrière réunionnaise ArchiMer
Bourjea, Jerome; Evano, Hugues; Hoarau, Ludovic; Satra Le Bris, Catherine; Meillon, Julien; Saintilan, Alexandre; Goudard, Erwann; Ropert, Michel.
Cet atlas interactif de la pêcherie palangrière de l'océan Indien a été réalisé dans la suite du projet IOSSSESPADON. Il synthétise d’une part, l'historique de la pêche palangrière de l'océan Indien depuis les années 1950 (efforts de pêche et captures d'espadon – Xiphias gladius par période de 5 ans et par rectangle statistique de 5°) et d’autre part, l'évolution de l'activité de la flottille palangrière réunionnaise depuis 1994 (efforts de pêche, captures et rendements pour les principales espèces ciblées). Pour le volet relatif à la Réunion, les données sont présentées : 1- annuellement par rectangle statistique de 5° (1994 – 2014), 2- annuellement ou par trimestre par rectangle statistique de 1° -2006 – 2014). Cet outil interactif permet une...
Tipo: Text Palavras-chave: Atlas; Cartographie; Pêche palangrière; Statistiques de pêche; Capture; Effort; Rendement; Océan Indien; Espadon; Thon Germon; Thon Albacore; Thon obèse; Grands pélagiques.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00272/38327/36568.pdf
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Bionomie benthique subtidale en Baie de Douarnenez ArchiMer
Blanchet, Aline; Chevalier, Claire; Gaffet, Jean-dominique; Hamon, Dominique.
Following a preliminary mapping survey using a combination of acoustic techniques, spatial patterns of sedimentologic and biological characteristics of the Bay of Douarnenez were studied in 2001 from a series of grab samples and underwater video recording aiming at calibrate the acoustic facies of the bottom and at characterized them from a biological point of view. Results obtained from community structure analysis showed that four principal ecological groups dominate : The coarse sands community with Branchiostoma lanceolatum, Glycymeris glycymeris and Glycera lapidum, the fine to medium sand community with Nephtys cirrosa, Ophelia borealis and Gastrosaccus spinifer, the mixed muddy sand and gravel community with Amphiura filiformis, Edwardsia sp. and...
Tipo: Text Palavras-chave: Cartographie; Peuplements; Baie de Douamenez; Zoo-benthos; Analyses multivariées; Vidéo; Échinodermes.; Cartography; Comrnunities; Bay of Douamenez; Zoo-benthos; Multivariate analysis; Video; Echinodermata.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/00431/54254/56103.pdf
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Campagnes expérimentales de chalutage en Manche orientale. Les campagnes C.G.F.S. 1997 & 1998 ArchiMer
Carpentier, Andre; Coppin, Franck.
lfremer carries out a yearly bottom trawl survey named Channel Ground Fish Survey (CGFS) in order to collect essential biological data on major exploited fish species in the Eastern Channel. These data are also provided to feed the indispensable historie series to the yearly assessment of resources. This report presents results of the CGFS surveys for 1997 and 1998, under two aspects: a multispecific approach of the biological assemblages and integrating an interannual analysis, then a monospecific analysis of 7 species of commercial interest, as whiting, pout, cod, red gurnard, plaice, black bream, red mullet. OCR NOT CONTROLLED
Tipo: Text Palavras-chave: Aspitrigla cuculus; Grondin rouge; Gadus morhua; Morue; Trisopterus luscus; Tacaud; Merlangius merlangus; Merlan; Multi espèces; Cartographie; Répartition; Abondance; Distribution; Manche orientale; Chalutage; Campagne; Plaice; Aspilngla cuculus; Red gurnard; Gadus morhua; Cod; Trisopterus luscus; Pout; Merlangius merlangus; Whiting; Multispecies; Cartography; Abundance; Distribution; Eastern Channel; Trawling; Survey.
Ano: 2000 URL: https://archimer.ifremer.fr/doc/2000/rapport-3606.pdf
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Campagnes expérimentales de chalutage en mer du Nord et Manche orientale. Volume II. Les campagnes C.G.F.S. 1997 & 1998 ArchiMer
Carpentier, André; Coppin, Franck.
Ifremer carries out a yearly bottom trawl survey named Channel Ground Fish Survey (CGFS) in order to collect essential biological data on major exploited fish species in the Eastern Channel. These data are also provided to feed the indispensable historic series to the yearly assessment of resources. This report presents results of the CGFS surveys for 1997 and 1998, under two aspects : a multispecific approach of the biological assemblages and integrating an interannual analysis, then a monospecific analysis of 7 species of commercial interest, as whiting, pout, cod, red gurnard, plaice, black bream, red mullet.
Tipo: Text Palavras-chave: Campagne; Chalutage; Manche orientale; Distribution; Abondance; Répartition; Cartographie; Multiespèces; Merlan; Merlangius merlangus; Tacaud; Trisopterus luscus; Morue; Gadus morhua; Grondin rouge; Aspitrigla cuculus; Plie; Pleuronectes platessa; Griset; Spondyliosoma cantharus; Survey; Trawling; Eastern Channel; Distribution; Abundance; Cartography; Multi-species; Whiting; Merlangius merlangus; Pout; Trisopterus luscus; Cod; Gadus morhua; Red gurnard; Aspitrigla cuculus; Plaice; Pleuronectesplatessa; Black bream; Spondyliosoma cantharus; Red mullet.
Ano: 1999 URL: http://archimer.ifremer.fr/doc/00306/41762/40975.pdf
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Caractérisation des peuplements benthiques du Cap Corse ArchiMer
Bonacorsi, Marina; Pergent-martini, Christine; Clabaut, Philippe; Damier, Elodie; Daniel, Boris; Breand, Niels; Marengo, Michel; Pergent, Gerard.
Tipo: Text Palavras-chave: Cartographie; Coralligène; Rhodolithes; Herbiers de magnoliophytes; Corse.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00185/29672/28044.pdf
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Cartographie des bancs de crépidules dans le bassin de Marennes Oléron: analyse par imagerie acoustique et sondeur de sédiment ArchiMer
Curti, Cécile.
The slipper limpet Crepidula jornicata, gastropod introduced on the North East Atlantic coasts, is considered as an invasive species, especially in shellfish fmming areas in France. Slipper Iimpet populations have been estimated in Marennes Oléron Bay since 1980. In 1995, a sidescan sonar mapping associated to a quantitative estimation of the stocks by « grab » was carried out. This study aims to update the current mapping of slipper limpet beds in the Marennes Oléron Bay using acoustic reading techniques coupled to samples. In autumn 2008, an acoustic campaign was performed through the Ifremer boat named Haliotis and sonograms obtained during the campaign were then analysed using the software CARAIBES. Acoustic images were calibrated through30 grab...
Tipo: Text Palavras-chave: Crepidula fornicata; Cartographie; Sonar inteférométrique; Marennes-Oléron; Crepidula fornicata; Cartography; Interferometric sonar; Marennes-Oléron Bay.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/00411/52295/53045.pdf
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Cartographie des biocénoses marines de Guadeloupe à partir de données SPOT (récifs coralliens, phanérogames marines, mangroves) ArchiMer
Chauvaud, S; Bouchon, C; Maniere, R.
In the framework of a comprehensive study of the coastal marine ecosystems of Guadeloupe Island (French West Indies), a remote sensing survey of marine communities was conducted in the Bay of the Grand Cul-de-Sac Marin. Pictures of SPOT satellite were used. At first sight, XS data from SPOT did not seem to be well adapted to extract information from deepest underwater areas. In the present study, a method for analysis of XS data was developed, which increases tenuous spectral differences associated to very low intensity signals. This technique led to a better distinction of objects, even the deepest ones. Reference surfaces were then identified in the field and a reliable supervised classification was conducted, which reflected the high diversity of...
Tipo: Text Palavras-chave: Télédétection; Cartographie; Récif corallien; Phanérogame marine; Mangrove; Remote sensing; Mapping; Coral reef; Seagrass; Mangrove.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/00291/40267/38646.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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Cartographie des fonds de la Seudre ArchiMer
Massard, Emilie; Geairon, Philippe.
Ce poster présente la bathymétrie du fond de Seudre. Les mesures s'effectuent par couplage d'un sondeur hydrographique à un GPS différentiel à bord d'une embarcation, permettant ainsi l'acquisition et la spatialisation de données en temps réel. Le traitement géostatique a ensuite lieu à partir d'un logiciel spécialisé pour obtenir une cartographie de la cote altimétrique du fond.
Tipo: Text Palavras-chave: Marennes Oléron; Cartographie; GPS; Seudre; Bathymétrie.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/acte-4038.pdf
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Cartographie du marais salé de Charente Maritime ArchiMer
Le Moine, Olivier; Geairon, Philippe; Razet, Daniel.
Our objectives can be broken down into two main axes: -Mapping of the swamp and of its use - Thematic mapping of the trophic availability of the hydraulic units. Data acquisition has been continued throughout the year 2003 To do so, a number of technical adjustments have been necessary. In this final phase of the contract, a new point of view has been tackled: that of modelisation. Indeed, considering the complexity of the calculations used, the evaluation of the trophic availability in the different hydraulic units requires the use of such techniques and software. Spatial analyses have been continued, and a number of models aimed at simplifying measurement acquisitions have been created.
Tipo: Text Palavras-chave: Modélisation; Traitement spatiaux; Cartographie; Charente Maritime; Zone littorale; Marais.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/2004/rapport-6377.PDF
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Cartographie et évaluation des principaux mollusques filtreurs du Golfe Normano-Breton ArchiMer
Noel, Philippe; Blanchard, Michel; Berthou, Patrick.
During 1993 and 1994, quantitative sampling were realized in Norman Gulf (Western Channel) to estimate molluscs suspension-feeders. Four bivalves are regularly sampled : Spisula ovalis, Tapes rhomboides, Glycymeris glycymeris and Venus verrucosa. For each species, individual age and weight were noticed. The spreading gastropod Crepidula fornicata was also sampled. The resultant biomass and distribution are proposed. These results will contribute to the evaluation of trophic exchanges in boundary layer and to the proposed modeling, in the program PNOC (National Program for Coastal Oceanography). NOT CONTROLLED OCR
Tipo: Text Palavras-chave: Western Channel; Norman Gulf; Crepidula fornicata; Venus verrucosa; Glycymeris glycymeris; Tapes rhomboides; Spisula ovalis; Suspension feeders; Cartography; Estimation; Manche Ouest; Golfe Normano Breton; Crepidula fornicata; Venus verrucosa; Glycymeris glycymeris; Tapes rhomboïdes; Spisula ovalis; Suspensivores; Cartographie; Evaluation.
Ano: 1995 URL: http://archimer.ifremer.fr/doc/1995/rapport-3856.pdf
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Cartographie et évaluation du stock de crépidules en baie du Mont Saint-Michel, en 2004 ArchiMer
Blanchard, Michel; Clabaut, Philippe; Abernot-le Gac, Chantal.
In 2003 and 2004, 3 cruises were organized using observations systems and sampling techniques to carry out cartography and stock assessment of the Slipper-limpet population (Crepidula fornicata) in the bay of Mont-Saint-Michel (Western Channel). This was done as part of the National Programme of Coastal Environment (Programme National d'Environnement Côtier - PNEC). The study helped to update previous data collected in 1995-96 with similar techniques : side-scan-sonar and submarine video for observation, and scuba diving and grabs for samples collection. Results show that during an eight years period, the limpet population spread in the southern part of the bay and that its stock rose about 50%, reaching about 150,000 metric tons, south of a...
Tipo: Text Palavras-chave: Manche ouest; Golfe normano breton; Baie du Mont Saint Michel; Sonar à balayage latéral; Cartographie; Évaluation de stock; Crepidula fornicata; Crépidule; Western Channel; Norman Gulf; Bay of Mont Saint Michel; Side scan sonar; Cartography; Stock assessment; Crepidula fornicata; Slipper limpet.
Ano: 2006 URL: https://archimer.ifremer.fr/doc/2006/rapport-5901.pdf
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Cartographie synthétique et analyse des peuplements benthiques sur deux secteurs du littoral français "Manche-Est" et "Loire-Gironde" ArchiMer
Blanchard, Michel; Heim, Marie; Rozec, Xavier; Caisey, Xavier.
This document presents a synthetic study of benthos in two large areas of the French coast: East-Channel and the area between Loire and Gironde. This original synthesis stocktakes biotopes maps published for the vast majority in the 70’s. The report uses the previous descriptions and analysis done by the different authors, and translates them with present specific names or biotopes codes, as proposed in the European EUNIS referring system. The presented maps are standardized and referred geographically with WGS84 to be collated together. For each biotope, specific richness and ecological richness are analysed, thanks to the information given by the various authors. Some informative cards of the main representative species are also presented in the...
Tipo: Text Palavras-chave: Benthos; Peuplement; Cartographie; Littoral français; Manche Est; Bretagne sud; Vendée; Pertuis charentais; Golfe de Gascogne; Benthos; Community; Cartography; French coast; East Channel; Southern Brittany; Vendée; Pertuis charentais; Bay of Biscay.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/00003/11434/7983.pdf
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Coastal zones inventory by high resolution satellites ArchiMer
Loubersac, Lionel.
The development of tools for assessing impacts on coastal environments is a reality. These impact assessments need both baseline and monitoring studies. Satellite remote sensing data would be useful for coastal inventories (baselines) and monitoring if high spatial and temporal resolutions are yield compatible. An overview of the various sensors that could be used is presented. The constraints linked to the different resolutions are exposed. An example based on Spot simulated data and trends are developed.
Tipo: Text Palavras-chave: Milieu littoral; Télédétection; Méthode satellite; Haute résolution; Surveillance; Cartographie; Analyse composante principale; Simulation; Zone côtière; SPOT; Coastal environment; Remote sensing; Satellite methods; High-resolution methods; Monitoring; Cartography; Principal components analysis; Simulation.
Ano: 1983 URL: http://archimer.ifremer.fr/doc/00143/25379/23517.pdf
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Contribution à l'étude de l'agitation dans le bassin de Marennes-Oléron (houle et clapot). Rapport final d'étude ArchiMer
LHF - Laboratoire d'Hydraulique de France; IFREMER - Laboratoire LABEIM La Tremblade.
L'objet de l'étude est l'estimation du régime moyen de clapot dans le basin de Marennes-Oléron à partir des méthodes de calcul utilisées usuellement dans les études d'ingénierie côtière. Les travaux présentés dans ce rapport s'intègrent dans le programme Charente-Marennes-Oléron, programme de recherche coordonnée pour l'analyse et la modélisation de l'écosystème du bassin de la Charente et de la zone littorale associée.
Tipo: Text Palavras-chave: Houle; Clapot; Cartographie; Bassin de Marennes-Oléron.
Ano: 1992 URL: http://archimer.ifremer.fr/doc/00135/24629/22657.pdf
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Développement de l'outil cartographique du marais salé de Charente Maritime ArchiMer
Le Moine, Olivier; Geairon, Philippe; Hussenot, Jerome; Turpin, Vincent; Goulletquer, Philippe.
Tipo: Text Palavras-chave: Cartographie; Marais salé; Numérisation; Charente Maritime.
Ano: 2002 URL: http://archimer.ifremer.fr/doc/00272/38373/36690.pdf
Registros recuperados: 45
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