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| Registros recuperados: 47 | |
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| Loubersac, Lionel; Populus, Jacques; Durand, Christophe; Prou, Jean; Kerdreux, Michel; Le Moine, Olivier. |
| Maintaining shellfish production activities, ensuring their quality and optimising the management of reserved space use with a perspective of sustainable growth are questions that interest a very significant block of French coastal sites. To achieve such objectives, it must especially be possible to relate the spatial distribution of the farmed stocks and environmental constraints: physical characteristics of the environment, nutritive resources, health constraints, environmental protection constraints... |
| Tipo: Text |
Palavras-chave: Aménagement Littoral; Sédimentologie; Bathymétrie; Méthodologie; Cadastre; Bassin de Marennes Oléron; Traitement des données; Système d'Information géographique; SIG. |
| Ano: 1997 |
URL: http://archimer.ifremer.fr/doc/1997/acte-3092.pdf |
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| Meleder Tard, Vona; Populus, Jacques; Guillaumont, Brigitte; Perrot, Thierry; Mouquet, Pascal. |
| Predictive modelling to map subtidal communities is an alternative to "traditional" methods, such as direct sampling, remote sensing and acoustic survey, which are neither time- nor cost-effective for vast expanses. The principle of this modelling is the use of a combination of environmental key parameters to produce rules to understand species distribution and hence generate predictive maps. This study focuses on subtidal kelp forests (KF) on the coast of Brittany, France. The most significant key parameters to predict KF frequency are (1) the nature of the substrate, (2) depth, (3) water transparency, (4) water surface temperature and (5) hydrodynamics associated with the flexibility of algae in a flow. All these parameters are integrated in a spatial... |
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| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00006/11758/9273.pdf |
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| Le Goff, Ronan; Ropert, Michel; Bajjouk, Touria; Bein, Aymeric; Cambert, Harold; Cebeillac, Alexandre; Cuet, Pascale; Delacourt, Christophe; Duval, Magali; Maurel, Laurence; Mouquet, Pascal; Nicet, Jean Benoit; Populus, Jacques; Quod, Jean-pascal; Talec, Pascal; Turquet, Jean; Vermenot, Coralie; Zubia, Mayalen. |
| Le présent document est le rapport final du projet "Bio-Indication à la Réunion ; contribution à la définition d’indicateurs adaptés aux platiers récifaux de la Réunion". Ce projet comprend deux volets : Volet 1 : définition d’indicateurs d’enrichissement en nutriments (dystrophie) adaptés aux platiers récifaux réunionnais. Une importante phase d’acquisition de données de terrain portant sur les algues, les cyanobactéries, le corail, la faune associée et les caractéristiques hydrologiques des différents secteurs retenus a été menée entre fin 2010 et fin 2011 sur une année hydrologique complète afin d’essayer de bâtir des indicateurs d’état DCE adaptés aux masses d’eau récifales de la Réunion, et plus précisément des indicateurs de dystrophie. Ce volet... |
| Tipo: Text |
Palavras-chave: Habitats benthiques des platiers récifaux réunionnais; Indicateurs d’enrichissement en nutriments ou de dystrophie; Algues; Corail; Cartographie; Zone intertropicale; La Réunion; Océan Indien; DCE. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00209/32022/30459.pdf |
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| Populus, Jacques; Nutpramoon, Raweewan; Martin, Jean-louis; Raux, Pascal; Auda, Yves; Son, Hoang. |
| Over the last twenty years, extensive shrimp aquaculture has dramatically expanded in the coastal fringe of the Mekong Delta. This occurred primarily at the expense of the mangrove, already severely affected by the Vietnam war. More recently, paddy land has been reclaimed for shrimp aquaculture, a higher currency earner. However, production collapses have frequently occurred and the overall yield has remained far below the expectations for traditional farming. A number of parameters enter into play in the success of this activity, summarized in two questions: i) is the Mekong deltaïc environment - under high continental pressure - suitable to shrimp farming, ii) if not, is it possible to adapt the low technicity of rural poor farmers to reach economic... |
| Tipo: Text |
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| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/00172/28322/26600.pdf |
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| Populus, Jacques; Hamdi, Anouar; Golding, Neil; Van Lancker, Vera; De Oliveira, Eric. |
| Marine seabed habitats are highly influenced by the geophysical variables they feature. These are firstly seabed type, topography and exposure, but in the more inshore areas also include water transparency, salinity, temperature etc. Some relations have been established in a top-down approach between adequate combinations of these variables and the higher levels of the Eunis (European Nature Information System) habitat classification which is currently being used to harmonise seabed habitat mapping throughout Europe. These levels have been referred to as "Marine landscapes", as they are aggregations of a number of lower Eunis habitats from levels 4 to 6. More elaborate variables that are thought to have a bearing on habitat types can be computed from the... |
| Tipo: Text |
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| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/acte-6338.pdf |
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| Martín Míguez, Belén; Novellino, Antonio; Vinci, Matteo; Claus, Simon; Calewaert, Jan-bart; Vallius, Henry; Schmitt, Thierry; Pititto, Alessandro; Giorgetti, Alessandra; Askew, Natalie; Iona, Sissy; Schaap, Dick; Pinardi, Nadia; Harpham, Quillon; Kater, Belinda J.; Populus, Jacques; She, Jun; Palazov, Atanas Vasilev; Mcmeel, Oonagh; Oset, Paula; Lear, Dan; Manzella, Giuseppe M. R.; Gorringe, Patrick; Simoncelli, Simona; Larkin, Kate; Holdsworth, Neil; Arvanitidis, Christos Dimitrios; Molina Jack, Maria Eugenia; Chaves Montero, Maria Del Mar; Herman, Peter M. J.; Hernandez, Francisco. |
| Marine data are needed for many purposes: for acquiring a better scientific understanding of the marine environment, but also, increasingly, as marine knowledge for decision making as well as developing products and services supporting economic growth. Data must be of sufficient quality to meet the specific users' needs. It must also be accessible in a timely manner. And yet, despite being critical, this timely access to known-quality data proves challenging. Europe's marine data have traditionally been collected by a myriad of entities with the result that much of our data are scattered throughout unconnected databases and repositories. Even when data are available, they are often not compatible, making the sharing of the information and data aggregation... |
| Tipo: Text |
Palavras-chave: EMODnet; Data portal; Open access; Checkpoint; Data services; Marine knowledge; Blue economy; Data integrator. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00506/61779/65778.pdf |
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| Populus, Jacques; Laurentin, Astrid; Rollet, Claire; Vasquez, Mickael; Guillaumont, Brigitte; Bonnot-courtois, Chantal. |
| This paper addresses the need for a finer description of coastal zone relief that is currently of interest for benthic habitat mapping. For example, the distribution of seaweed species in the tidal zone will mostly depend on the terrain's hypsometric level, slope and orientation. These parameters can be used in predictive distribution models, or more simply merged with 2.5/3D imagery to enhance interpretation. Since the required accuracy is of the order of 20-30 cm, two remote sensing techniques, lidar and photogrammetry, were examined and conditions for their application were assessed. Lidar surveys have been shown to provide such accuracy in all instances, whatever the substratum and vegetal cover type, as well as with the slope values currently... |
| Tipo: Text |
Palavras-chave: Laser scanning; Benthos mapping; Photogrammetry; Coastal zone topography. |
| Ano: 2004 |
URL: http://archimer.ifremer.fr/doc/2004/publication-2278.pdf |
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| Andersen, Jesper H.; Manca, Eleonora; Agnesi, Sabrina; Al-hamdani, Zyad; Lillis, Helen; Mo, Giulia; Populus, Jacques; Reker, Johnny; Tunesi, Leonardo; Vasquez, Mickaël. |
| We have analyzed the development of “Broad-Scale Seabed Habitat Maps” (BSHM) and their potential use in a European context with regard to the EU Marine Strategy Framework Directive (MSFD) implementation, MPA designation and network assessment as well as other applications of BSHMs. The analyses are anchored in BSHMs developed by a series of interlinked EU projects (e.g. UKSeaMap, BALANCE, MESH, Mesh Atlantic, EUSeaMap 2012, and EUSeaMap 2016) and all maps are based on environmental data. Some EU Member States have used BSHMs as part of their MSFD Initial Assessments published in 2012. However, we conclude that BSHMs are a prerequisite for another key MSFD activity, i.e. mapping of potentially cumulative effects of multiple human stressors. Further, BSHMs... |
| Tipo: Text |
Palavras-chave: Benthic Habitats; Mapping; Ecosystem-Based Management; Marine Strategy Framework Directive; Marine Protected Areas (MPA). |
| Ano: 2018 |
URL: http://archimer.ifremer.fr/doc/00426/53719/54588.pdf |
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| Galparsoro, Ibon; Connor, David W.; Borja, Angel; Aish, Annabelle; Amorim, Patricia; Bajjouk, Touria; Chambers, Caroline; Coggan, Roger; Dirberg, Guillaume; Ellwood, Helen; Evans, Douglas; Goodin, Kathleen L.; Grehan, Anthony; Haldin, Jannica; Howell, Kerry; Jenkins, Chris; Michez, Noemie; Mo, Giulia; Buhl-mortensen, Pal; Pearce, Bryony; Populus, Jacques; Salomidi, Maria; Sanchez, Francisco; Serrano, Alberto; Shumchenia, Emily; Tempera, Fernando; Vasquez, Mickael. |
| The EUNIS (European Union Nature Information System) habitat classification system aims to provide a common European reference set of habitat types within a hierarchical classification, and to cover all terrestrial, freshwater and marine habitats of Europe. The classification facilitates reporting of habitat data in a comparable manner, for use in nature conservation (e.g. inventories, monitoring and assessments), habitat mapping and environmental management. For the marine environment the importance of a univocal habitat classification system is confirmed by the fact that many European initiatives, aimed at marine mapping, assessment and reporting, are increasingly using EUNIS habitat categories and respective codes. For this reason substantial efforts... |
| Tipo: Text |
Palavras-chave: Habitat classification scheme; EUNIS; Marine habitats; Habitat mapping. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00125/23663/22686.pdf |
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| Populus, Jacques; Moussat, Eric; Blanc, Frederique; Quimbert, Erwann; Vasquez, Mickael; Meillon, Julien; Soudarin, Laurent. |
| After a time when observations of the sea have been made for specific purposes, e.g. for specific national purposes or to demonstrate a technological capability, the European Commission has now moved to a new paradigm where data are collected once and used them for as many purposes as possible. This means relying preferably on users rather than on producers to assess existing data sets and data sources and promote recommendations for a better satisfaction of their needs. The EMODNET Atlantic checkpoint (http://www.emodnet-atlantic.eu/) was designed to evaluate the fitness-for-use of current observations and data assembly programs towards 11 marine applications and prioritizing the needs to optimize monitoring systems at the scale of the North Atlantic Ocean. |
| Tipo: Text |
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| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00461/57248/60716.pdf |
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| Giacomini, Elodie; Populus, Jacques; Rozec, Xavier. |
| This report presents the implementation process and the current status of the marine GIS database project in Mont Saint Michel Bay, called SIMON. This document provides a user's guide for Sextant (technical platform for SIMON), describes various protocols that were developed (data validation, creation of metadata and preparation for uploading data on Sextant) and gives an inventory of data currently available in SIMON. This report is thus intended for end users but also for project coordinators, particularly those who are responsible for geomatics management using SIMON.... |
| Tipo: Text |
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| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/rapport-4360.pdf |
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| 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 |
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| Allain, Serge; Guillaumont, Brigitte; Le Visage, Christophe; Loubersac, Lionel; Populus, Jacques. |
| Devant la demande croissante des aménageurs du territoire, des scientifiques ou des usagers travaillant en milieu littoral, le SHOM et l'IFREMER ont mis en commun au sein d'un groupe de travail les moyens qu'ils consacrent à l'identification et la définition des « données géographiques de référence » en domaine littoral. Ce travail d'analyse est conduit à travers une démarche pragmatique croisée entre une approche par thème et une approche par application. Une grille de lecture a été construite, prenant en compte un certain nombre de paramètres tels que vocabulaire, données existantes, intérêt applicatif, cohérence et forme des produits. Une liste des données de référence issue de ces analyses a été établie. Ces données sont hiérarchisées selon deux... |
| Tipo: Text |
Palavras-chave: Données de référence numériques; Base de données; Domaine littoral; Applications; SIG. |
| Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/00423/53406/54282.pdf |
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| Hamdi, Anouar; Populus, Jacques; Piel, Steven. |
| The Marine Landscape is a concept that originated in Canada (Roff and Taylor 2000) and was recently implemented in UK and Europe in the respective frames of the UKSeaMap (Connor 2006) and Mesh projects. It aims to describe the marine environment with respect to its main geophysical features, in terms of both the seabed and water column. Marine landscape maps are not a surrogate for genuine habitat maps which are produced by incorporating biological data from samples to the physical map. They provide a more global vision of our coastal and shelf environment in terms of their main physiographic traits and hence act as a support for national/regional policy and spatial planning. While initially applied on a more global scale (resolution of one nautical mile),... |
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| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/00172/28325/26605.pdf |
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| Registros recuperados: 47 | |
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