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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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| 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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| De Oliveira, Eric; Populus, Jacques; Guillaumont, Brigitte. |
| The aim of this study is to model the seaweed species distribution with respect to environmental parameters. We focused on fixed species of algae, such as fucoids. Firstly, we identified environmental parameters, such as substratum nature, immersion time, exposure, etc., which determine the seaweed distribution. Secondly, we used field sampling to compute the distribution laws for seaweed according to the environmental parameters selected. Thirdly, we used the distribution laws and the environmental parameters to perform predictive mapping of seaweed belts with a fuzzy logic method. Seaweed presence is directly dependent on the nature of the substratum. In the intertidal domain we used an alternative, because seaweed beds can be observed directly. We... |
| Tipo: Text |
Palavras-chave: Fussy logic; Mapping; Bentic habitats; Intertidal seaweed. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-2279.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... |
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| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/acte-6338.pdf |
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| Reiss, Henning; Birchenough, Silvana; Borja, Angel; Buhl-mortensen, Lene; Craeymeersch, Johan; Dannheim, Jennifer; Darr, Alexander; Galparsoro, Ibon; Gogina, Mayya; Neumann, Hermann; Populus, Jacques; Rengstorf, Anna M.; Valle, Mireia; Van Hoey, Gert; Zettler, Michael L.; Degraer, Steven. |
| Marine benthic ecosystems are difficult to monitor and assess, which is in contrast to modern ecosystem-based management requiring detailed information at all important ecological and anthropogenic impact levels. Ecosystem management needs to ensure a sustainable exploitation of marine resources as well as the protection of sensitive habitats, taking account of potential multiple-use conflicts and impacts over large spatial scales. The urgent need for large-scale spatial data on benthic species and communities resulted in an increasing application of distribution modelling (DM). The use of DM techniques enables to employ full spatial coverage data of environmental variables to predict benthic spatial distribution patterns. Especially, statistical DMs have... |
| Tipo: Text |
Palavras-chave: Ecosystem approach; Environmental monitoring; Habitat suitability modelling; Macrofauna; Mapping; Marine spatial planning (MSP); Predictive modelling; Species distribution modelling. |
| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00203/31405/29915.pdf |
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| Populus, Jacques; Loubersac, Lionel; Prou, Jean; Kerdreux, Michel; Le Moine, Olivier. |
| The coastal zone of Charente-Maritime in France has a leading position in oyster culture production. Yet it is being jeopardized by a number of problems such as overstocking, inadequate distribution of culture types, wild stock in excess, and strong siltation processes. Some of these problems result from a lack of communication and realization within the professional community, others due to obsolete management tools. The introduction of geomatics is believed to help provide some answers, besides alleviating the classical task of lease management. This chapter shows how the system was built, the spatial data geo-referenced and linked to administrative data. Examples of queries on the spatial data base reveal some otherwise invisible facts and allow... |
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| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/00172/28313/26594.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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| Populus, Jacques. |
| Les estrans et les zones basses et inondables attenantes ont toujours souffert d'un large désintérêt de la part des gestionnaires de l'espace. A la faveur des catastrophes répétées de ces dernières années, un regain d'intérêt s'est fait jour pour à la fois prévoir et établir des scénarii, gérer le milieu en temps de crise, voire dédommager par la suite. La connaissance fine des zones côtières, au plan patrimonial comme à celui des activités économiques, est essentielle. Des programmes se mettent en place tel le Rebent, qui vise à réaliser un inventaire renouvelable des habitats des zones découvrantes et des petits fonds. Parmi les données de base nécessaires à une telle entreprise, on trouve les donnée physiques de topographie et de géomorphologie. En zone... |
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| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/00104/21552/19131.pdf |
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| Bajjouk, Touria; Guillaumont, Brigitte; Michez, Noemie; Thouin, Benoît; Croguennec, Chantal; Populus, Jacques; Louvel-glaser, Justine; Gaudillat, Vincent; Chevalier, Claire; Tourolle, Julie; Hamon, Dominique. |
| Ce document est une traduction française que l’on espère transcrire au mieux les descriptions d’habitats de la classification EUNIS. Il vient compléter la traduction en français des habitats terrestres et d’eau douce réalisée par le MNHN‐SPN (Louvel et al., 2013). Il a pour objectif de faciliter l’appropriation de cette typologie par les acteurs concernés (scientifiques, gestionnaires ou bureaux d’études) et favoriser les échanges de connaissance sur la biodiversité des habitats benthiques en cohérence avec ce standard. Il s’agit dans ce document du dictionnaire de la typologie EUNIS dans sa version 2007, revue en 2012 pour des modifications des codes de la classification paléarctique et ceux de la classification des habitats marins de la Grande Bretagne.... |
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| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00271/38222/36382.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),... |
| Tipo: Text |
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| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/00172/28325/26605.pdf |
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| Tong, P. H. S; Auda, Y; Populus, Jacques; Aizpuru, M; Al Habshi, A. Al; Blasco, F. |
| This study is an attempt to produce an assessment of the impact of shrimp aquaculture in the Mekong Delta (Viet Nam) on mangrove ecosystems. For this exercise we selected two sub-areas (Ca Mau and Tra Vinh provinces) encompassing a variety of land uses and ecological conditions. Twenty stations in Tra Vinh and 15 stations in Ca Mau have been surveyed several times from September 2000 to March 2002. Field investigations included mangrove soils studies, measurements of pH and salinity of the water, analysis of mangrove flora, and density and structure of the vegetation. Four Systeme Probatoire de l'Observation de la Terre (SPOT) scenes were used for the discrimination of mangrove types and for the delineation of landscape units. For the first time, five... |
| Tipo: Text |
Palavras-chave: Crevette; Aquiculture; Exploitation agricole; Mangrove; Discrimination; Indice végétation; Extrême Orient; Asie; Macrura; Decapoda; Crustacea; Arthropoda; Invertebrata. |
| Ano: 2004 |
URL: https://archimer.ifremer.fr/doc/2004/publication-2303.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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| 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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| Registros recuperados: 47 | |
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