Consulta: subjectFacets:"Biodiversité"
Registros recuperados: 26
Data/hora: 09/06/2024 02:53:49

Les observations de poissons tropicaux et le réchauffement des eaux dans l’Atlantique européen
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Quero, Jean-claude; Du Buit, Marie-henriette; Vayne, Jean-jacques.
A recapitulation of the records of tropical fishes from European Atlantic waters shows that 67.6 % were fishes caught from the upper slope, between approximately 200 and 600 m; 19.8 % were fishes caught from the continental shelf; and 13.5 % were specimens caught from the middle slope, between 700 and 1 300 m. Since 1963, the upper slope species have made regular northward range extensions off of south Portugal to north-western Ireland (about 55 degrees 30' N), more and less rapidly, about 30 years for Cyttopsis roseus and only 6 years for Sphoeroides pachygaster. The continental shelf species, observed from 1969 but mostly from 1981, have a northward range to south-eastern Ireland (about 52 degrees N), but 65.2 % of them have been caught off the south of...
Tipo: Text
Palavras-chave: Biodiversité; Poisson tropical; Réchauffement; Atlantique européen; Biodiversity; Tropical fishes; Warming; European Atlantic.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00254/36543/35085.pdf

Logbook de la campagne RAMOGE 2018
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Fabri, Marie-claire; Daniel, Boris; Et Tous Les Participants,.
Bringing together France, Italy and the Principality of Monaco since 1976, the RAMOGE agreement is born of an awareness of the pollution of the sea. Its aim is to raise public awareness, develop actions and make recommendations for the preservation of the marine environment. In 2015, an exploration campaign of the deep zones of the RAMOGE area made it possible to acquire new data in the Natura 2000 sites of "Corniche Varoise" and "l'Estérel", as well as on other Italian and Monegasque sectors. . The RAMOGE project "exploration of deep zones of ecological interest" is based on 3 phases. Each country is invited to become involved in the implementation of one of these phases. After Italy in 2015, which facilitated the provision of nautical resources for...
Tipo: Text
Palavras-chave: Méditerranée; RAMOGE; Biodiversité; Déchets.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00458/56957/58850.pdf

Complexity in trophic structure and stability in a modelled West African estuary
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Villanueva, Ching-maria; Diouf, P.s.; Albaret, J.-j.; Moreau, J.
Un modèle Ecopath de l'estuaire du Sine-Saloum (Sénégal) comportant au total 37 groupes fonctionnels a été appliqué dans la présente étude en vue de déterminer les faits essentiels de ce système aquatique. La grande biodiversité spécifique des poissons de l'écosystème peut y jouer un rôle en assurant son intégrité, spécialement en présence de facteurs de stress, bien qu'il ait été observé que ce n'est pas entièrement le cas. Les résultats montrent qu'un autre facteur de mitigation est le niveau des forces d'interaction entre les groupes fonctionnels. La stabilité est accrue par des relations plus faibles et des pyramides plus courtes et plus larges. Bien que différentes questions se posent concernant les facteurs conduisant à la stabilité d'un système, les...
Tipo: Text
Palavras-chave: Stabilité des systèmes; Sénégal; Omnivorie; Estuaire; Ecosystème côtier; Ecopath; Biodiversité; Afrique de l'Ouest; West Africa; System Stability; Senegal; Omnivory; Estuary; Ecopath; Coastal Ecosystem; Biodiversity.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-2554.pdf

Conservation of marine habitats under multiple human uses. Methods, objectives and constraints to optimize a Marine Protected Areas network in the eastern English Channel
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Delavenne, Juliette.
The eastern English Channel is a significant economic area that supports a number of human-based activities, such as tourism and recreational activities, international ports and shipping, and the extraction of both living and mineral resources. In addition, the region supports a number of important marine biological features and large habitat diversity. Marine Protected Areas (MPAs) are increasingly used as a management tool to foster a sustainable exploitation of marine resources in an ecosystem based management framework. All European countries have a legal obligation to develop MPA networks in their national waters. However, there has to date been only limited attempts to coordinate the design and positioning of such networks at an international level...
Tipo: Text
Palavras-chave: Manche orientale; Aires Marines Protégées; Planification spatiale; Biodiversité; Marxan; Typologie d’habitat; Cibles de conservation; Usages anthropiques; Eastern English Channel; MPA; Spatial planning; Biodiversity; Marxan; Habitat typology; Conservation targets; Human uses.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00135/24651/22684.pdf

Bilan des campagnes terrain vidéo 2012. Site : Bourail – Borindi – Hienghène - Pouébo
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Roman, William; Pelletier, Dominique.
Ce document présente sous forme de fiches les missions IFREMER réalisées dans le cadre du projet AMBIO. Ces fiches, qui se veulent synthétiques, présentent pour les 4 sites : Bourail – Borindi – Hienghène- Pouebo - Le matériel vidéo utilisé. - Le déroulement de la mission. - Le bilan des stations réalisées, les stations exploitables et les stations analysées. - La distribution des stations selon un type géomorphologique, un statut de protection et le nom des récifs. - La complémentarité de la mission avec les suivis précédents.
Tipo: Text
Palavras-chave: Terrain vidéo; Biodiversité; STAVIRO 2012; Bourail; Borindi; Hienghène; Pouebo.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00274/38569/37092.pdf

Projet SINP - Synthèse des indicateurs institutionnels de biodiversité marine et côtière
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Fossat, Julia; Pelletier, Dominique; Levrel, Harold.
Le gouvernement français s’est engagé à travers différentes conventions et textes institutionnels à stopper d’ici 2010 la perte de la biodiversité. Pour atteindre cet objectif, le Ministère de l’Ecologie, de l’Energie, du Développement Durable et de la Mer (MEEDDM) a mis en place le Système d’Information sur la Nature et les Paysages (SINP), afin de rassembler et structurer l’information sur le patrimoine naturel et la biodiversité. Le volet marin de ce système, le SINP mer, a également pour vocation de valoriser ces informations, soit de présenter des indicateurs permettant de répondre aux enjeux de conservation de la biodiversité marine à partir des données contenues dans le système. Ce document présente la première phase de travail sur les indicateurs...
Tipo: Text
Palavras-chave: Biodiversité; Diversité biologique; Diversité écosystémique; Diversité spécifique; Indicateur; Marin; Côtier; Cadre institutionnel; Convention; Système d’information; Biodiversity; Biological diversity; Ecosystem diversity; Species diversity; Indicator; Marin; Coastal; Institutional framework; Convention; Information system.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00083/19471/17084.pdf

Etat de santé des habitats et peuplements de poissons des atolls d’Entrecasteaux, zone inscrite au Patrimoine Mondial de l’Humanité et Parc naturel de la mer de Corail. Evaluation initiale par stations vidéo rotatives STAVIRO
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Schohn, Thomas; Pelletier, Dominique; Carpentier, Liliane.
The AMBIO project conducted a comprehensive video-based baseline assessment of coral reef fish communities and associated habitats in the New Caledonian lagoons. Observation relies on remote unbaited underwater video, using the STAVIRO rotating technique (Pelletier et al. 2012).  This survey was conducted in 2015 in Entrecasteaux Reefs, both located within the Coral Sea Natural Park, and part of World Heritage site. 109 STAVIRO were validated in 9 days, covering the reefs and geomorphological units in the area. Images were analyzed to characterize the habitat surrounding each station, and fishes based on a list of 565 species (Pelletier et al. 2016).  28 indicators were computed and represented on maps (Sextant server). Indicators were analyzed using the...
Tipo: Text
Palavras-chave: Biodiversité; Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Aire Marine Protégée; Patrimoine mondial; Parc de la mer de Corail; Ecosystème corallien; Nouvelle-Calédonie; Indicateur; Tableau de bord; Cartes; Sextant; PAMPA; Biodiversity; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Marine Protected Area: Coral Sea Natural Park; World Heritage; Coral reefs; New Caledonia; Indicator; Dashboard; Map; Sextant; PAMPA.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00406/51760/52357.pdf

Linking biodiversity research in South America's oceans
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Sathyendranath, S; Gallardo, Va.
This article outlines the background and planning for a South American workshop on marine biodiversity in Concepcion, Chile, 28-30 October, 2002. This first CoML/POGO effort in the Southern hemisphere, pursuant to the Sao Paulo declaration began with presentations in all major coastal states and brings together key South American researchers to take advantage of new research concepts emerging from the Census projects. (C) 2002 Ifremer/CNRS/IRD/Editions scientifiques et medicales Elsevier SAS. All rights reserved.
Tipo: Text
Palavras-chave: Biodiversité; Océanographie biologique; Mers bordant l’Amérique du Sud; Biodiversity; Biological oceanography; South American waters.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00322/43309/42965.pdf

Les productions conchylicoles dans leur écosystème : les conditions de la réussite...les menaces à court et moyen terme
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Prou, Jean; Piquet, Jean-come; Goulletquer, Philippe; Mongruel, Remi; Ryckaert, Mireille.
La conchyliculture charentaise est une filière enracinée dans les écosystèmes de la Gironde et des Pertuis Charentais. Les interdépendances de la conchyliculture avec les autres usages présents sur ces territoires sont connues, anciennes et doivent être vues dans une perspective historique. Les concepts de biodiversité développés entre autres dans le Millenium Ecosystem Assessment permettent une lecture nouvelle de la place de la conchyliculture dans son environnement. Les différentes composantes de la biodiversité offrent des services écosystémiques qui permettent à l’homme de profiter de la consommation de coquillages. De la pêche pour sa subsistance à la conchyliculture, la consommation de coquillages oblige à une intervention dans les écosystèmes. Dans...
Tipo: Text
Palavras-chave: Conchyliculture; Ecosystème marin; Biodiversité; Nuisance; Cadmium; Algue toxique; Microbiologie.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00014/12567/9435.pdf

Etat de santé des habitats et peuplements de poissons des îles et récifs de l’Astrolabe, Pétrie et Walpole, Parc Naturel de la Mer de Corail. Evaluation initiale par stations vidéo rotatives STAVIRO
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Schohn, Thomas; Bockel, Thomas; Carpentier, Liliane; Pelletier, Dominique.
- The AMBIO project conducted a comprehensive video-based baseline assessment of coral reef fish communities and associated habitats in the New Caledonian lagoons. The survey relies on remote unbaited underwater video observations, using the STAVIRO rotating technique.  - The study pertains to the reefs of Astrolabe, Pétrie and Walpole Island, located within the Coral Sea Natural Park. The survey conducted in 2014 covers the entire area, and the sampling design was stratified according to reef type. 95 stations were validated. They were analyzed to characterize the habitat surrounding each station, and fish communities, based on a list of 565 fish species (cf. AMBIO/A/1).  - 28 indicators were computed and mapped (maps available on a Sextant server)....
Tipo: Text
Palavras-chave: Biodiversité; Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Parc naturel mer de Corail; Nouvelle-Calédonie; Indicateur; Tableau de bord; Serveur de cartes; Sextant; PAMPA; Ecosystème corallien; Biodiversity; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Marine Protected Area: Coral Sea Natural Park; Coral reefs; New Caledonia; Indicator; Dashboard; Map server; Sextant; PAMPA.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00406/51738/52324.pdf

A census of marine life: Unknowable or just unknown?
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Decker, Cj; O'Dor, R.
As an introduction to the entire volume, this article outlines the relationships among the five elements of the Census of Marine Life (CoML) that create new knowledge: (1) The Ocean Biogeographic Information System (OBIS), a marine component of the Global Biodiversity Information Facility, links marine databases around the world to provide an Internet accessible, dynamic interface for comparing species-level, geo-referenced biodiversity data in relation to ocean habitats. The entire CoML field project data will be managed in and accessible through OBIS. (2) The History of Marine Animal Populations (HMAP) is a unique new synthesis of historical and biological research that will document marine biodiversity, globally, up to 500 years ago, before significant...
Tipo: Text
Palavras-chave: Biodiversité; Recensement; Recherche; Biogéographie; Biodiversity; Census; Global; Research; Biogeography.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00322/43299/43035.pdf

Utilisation de la technique vidéo STAVIRO pour l’observation et le suivi des ressources et des écosystèmes récifo‐lagonaires de Mayotte. Etude pilote et recommandations pour les suivis futurs. Annexe 2 : Fiches métriques : Influences du statut de protection (Réserve de la passe Longogori), du type géomorphologique et de l’habitat
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Roman, William; Pelletier, Dominique; Wickel, Julien; Giannasi, Paul.
• This work deals with coral reef fish resources and communities in the Natural Marine Park of Mayotte, Western Indian Ocean). It relies on remote unbaited underwater video observations, using the STAVIRO rotating technique.  • This document is complementary to the main assessment report:  William Roman and Dominique Pelletier, 2016. The STAVIRO video technique for monitoring fish resources and reef ecosystems in the Natural Marine Park of Mayotte (Western Indian Ocean). Pilot study and recommendations for monitoring. EXPLOCEAN-IFREMER Report.  • It pertains to the assessment of resources with respect to protection status and factors related to local habitat and reef geomorphology. • It comprises the description of the metrics used for the assessment:...
Tipo: Text
Palavras-chave: Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Biodiversité; Ecosystème corallien; AMP; Parc Naturel Marin de Mayotte; Indicateur; PAMPA; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Biodiversity; Coral reefs; MPA; Natural Marine Park of Mayotte; Indicator; PAMPA.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00373/48423/48644.pdf

De la biodiversité aux biotechnologies bleues : la caractérisation et l'exploitation des ressources marines sont-elles compatibles?
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Goulletquer, Philippe.
L’exploitation de la biodiversité marine, notamment via les biotechnologies, offre un réel potentiel de valorisation comme le démontre l'accélération des dépôts de brevets utilisant des substances actives marines. Ce point est renforcé par les particularités uniques de la biodiversité marine. Le défi à l’heure actuelle est de définir les conditions d’exploitation durable dans un contexte de connaissances limitées des écosystèmes concernés. Si les activités actuelles tendent à privilégier la préservation de l’environnement marin, le développement de connaissances et la levée de verrous technologiques permettront probablement à l’avenir d’identifier les ressources d’intérêt puis de les exploiter par des approches industrielles innovantes (e.g.,...
Tipo: Text
Palavras-chave: Biodiversité; Ressources Marines; Biodiversité marine; Biotechnologies; Gestion; Exploitation.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00099/20987/18613.pdf

Coût d’opportunité versus coût du maintien des potentialités écologiques : deux indicateurs économiques pour mesurer les coûts de l’érosion de la biodiversité
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Levrel, Harold; Hay, Julien; Bas, Adeline; Gastineau, Pascal; Pioch, Sylvain.
The cost of ecosystem services degradation is a major topic as underlined by the TEEB program (The Economics of Ecosystems and Biodiversity), which proposed an assessment of the costs of policy inaction in the field of biodiversity conservation. In the same vein, the report of the French Centre for Strategic Analysis on the Economic Approach to Biodiversity and Ecosystem Services turns its attention to the value of ecosystem services, suggesting some elements that could help measure the cost of biodiversity degradation. There is however some confusion regarding the notion of cost. Thus, in the case of TEEB the proposed cost assessment translates into monetary terms the loss of potential profits from ecological services. Yet, another way of assessing these...
Tipo: Text
Palavras-chave: Services écologiques; Biodiversité; Valeur; Coûts; Méthodes d’estimation; Ecosystem services; Biodiversity; Value; Costs; Assessmentmethodology.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00120/23115/20960.pdf

Etat de santé initial des habitats et peuplements de poissons des récifs de Chesterfield-Bellona, Parc Naturel de la Mer de Corail, Campagne de stations vidéo rotatives STAVIRO 2013
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Pelletier, Dominique; Bockel, Thomas; Roman, William; Carpentier, Liliane; Laugier, Thierry.
- The AMBIO project conducted a comprehensive video-based baseline assessment of coral reef fish communities and associated habitats in the New Caledonian lagoons. The surveys rely on remote unbaited underwater video observations, using the STAVIRO rotating technique. Chesterfield and Bellona remote reefs and atolls are located in the Coral Sea Marine Park, northwest of New Caledonia. -This 2013 survey is the first scientific survey covering the entire area, with a sampling design stratified according to reef type. 203 stations were validated within 10 days. They were analyzed to characterize the habitat surrounding each station, and fish communities, based on a list of 565 fish species (cf. AMBIO/A/1). - 34 indicators were computed and mapped (maps...
Tipo: Text
Palavras-chave: Biodiversité; Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Parc de la Mer de Corail; Aire Marine Protégée; AMP; Ecosystème corallien; Nouvelle-Calédonie; Indicateur; Tableau de bord; Serveur de cartes; Sextant; PAMPA; Biodiversity; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Coral Sea Marine Park; Marine Protected Area; MPA; World Heritage; Coral reefs; New Caledonia; Indicator; Dashboard; Map server; Sextant; PAMPA.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00381/49247/49700.pdf

Bases scientifiques et techniques d’un observatoire du changement global en mer
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Andral, Bruno.
La Méditerranée constitue un des pôles mondiaux de biodiversité et un lieu clé des changements climatiques globaux, avec des taux de réchauffement constatés en surface parmi les plus élevés de la planète (~+ 0.06°C/an). Nous pouvons en constater aujourd’hui les premiers symptômes : transformation des écosystèmes et habitats, augmentation de la température de l’eau et son cortège d’espèces exotiques, espèces invasives animales et végétales et leurs impacts sur les espèces indigènes. Les îles, par leur taille, et du fait qu’elles sont moins soumises aux pressions anthropiques directes, sont des laboratoires idéaux pour suivre l’impact des changements globaux sur la biodiversité, sans être perturbé par des effets locaux. Dans le cadre de l'initiative "Petites...
Tipo: Text
Palavras-chave: Changement global; Biodiversité; Communautés benthiques; Poissons; Phytoplancton.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00233/34388/32782.pdf

Intérêt biogéographique de la côte basque rocheuse
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: De Casamajor, Marie-noelle; Lalanne, Yann.
During recent decades, works on rocky shore biodiversity have been multiplied in the southern part of the Bay of Biscay and more precisely on intertidal and subtidal area were communities present a great interest. Necessity of conservation of coastal habitats and their communities and a growing pressure on coastal environments explain awareness of services provided by these ecosystems. Those communities are very sensitive to water quality change. Moreover, since the beginning of the XXI century various European directives require a good ecological status of coastal waters and conservation of their communities : Water Framework Directive (WFD), Marine Strategy Framework Directive (MSFD) and conservation of habitats with Directive Habitat Fauna and Flora...
Tipo: Text
Palavras-chave: Biodiversité; Substrats rocheux; Côte basque; Changement climatique; Golfe de Gascogne.; Biodiversity; Rocky shore; Basque coast; Climate change; Bay of Biscay.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00347/45781/45426.pdf

The pilot project "Patterns and processes of the ecosystems of the northern Mid-Atlantic": aims, strategy and status
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Bergstad, Oa; Godo, Or.
The Mid-Atlantic Ridge is the target of an emerging international ecosystem study under the Census of marine life programme. This pilot project shall gather new knowledge on biodiversity, distribution patterns, and ecological processes, and the overriding aim is "to describe and understand the patterns of distribution, abundance and trophic relationships of the organisms inhabiting the mid-oceanic North Atlantic, and identify and model ecological processes that cause variability in these patterns". The project will focus on pelagic, benthopelagic and epibenthic macrofauna, and analyse distribution and abundance patterns in relation to the abiotic and biotic environment, as well as trophic relationships and life history strategies. Fish, crustaceans,...
Tipo: Text
Palavras-chave: Médio-atlantique; Ride; Macrofaune; Biodiversité; Mid-atlantic; Ridge; Macrofauna; Biodiversity.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00322/43305/43041.pdf

Evaluation de l’état de santé des habitats et peuplements de poissons de la zone de Voh-Koné-Pouembout, Campagnes de stations vidéo rotatives STAVIRO 2007-2013
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Giraud-carrier, Charlotte; Pelletier, Dominique.
• Conducted within the AMBIO project, this work deals with coral reef fish communities and associated habitats, in the New Caledonian lagoons. It aims at assessing the status and trends of habitats and mobile macrofauna in the Voh-Kone-Pouembout lagoon, in the light of demographic and industrial developments and accounting for the existing customary reserve of Oundjo. • It relies on 280 stations collected in 2007 and 2013 using the remote unbaited underwater video STAVIRO rotating technique, which were analysed to characterize habitat, fish assemblages, turtles and sea snakes, from a list of 490 species (AMBIO/A/1). • 143 species (including one turtle species and one sea snake species), belonging to 23 families were observed. The most frequent and abundant...
Tipo: Text
Palavras-chave: Biodiversité; Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Impact anthropique; Aire Marine Protégée; Réserve coutumière; Ecosystème corallien; Nouvelle-Calédonie; Indicateur; Tableau de bord; Serveur de cartes; Sextant; PAMPA; Biodiversity; Fish assemblage; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Anthropogenic impact; Marine Protected Area; MPA; Customary reserve; Coral reefs; New Caledonia; Indicator; Dashboard; Map server; Sextant; PAMPA.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00360/47109/47050.pdf

Changement climatique en milieu côtier &amp; littoral : conséquences sur les peuplements marins
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Goulletquer, Philippe.
The effect of climate changes on marine ecosystems and the ecosystemic services identified in the framework of the World ecosystem assessment program for the millennium (MEA, 2001), is a major scientific issue. In the first place, it seems necessary to identify these changes' characteristics from a physics point of view, as well as from a specific biodiversity (e.g., species distribution areas, exotic and invasive species), populational or marine ecosystem functioning point of view (e.g., trophic chain). However, one of the main difficulties in assessing these impacts results from the superposition and the interactions between natural variability and the different anthropic effects including economic activities (e.g. fisheries). A number of doubts remain,...
Tipo: Text
Palavras-chave: Impact; Biodiversité; Ecosystème marin; Changement climatique.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/acte-6211.pdf

Qualité des eaux littorales des Pertuis Charentais : Bilan et diagnostic
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Rostagno, Bernard; Violleau, Allain; Brun, Céline; Dietrich, Patrice; Fillon, Alain; Goulletquer, Philippe; Guichet, Roger; Kantin, Roger; Legay, Didier; Loubersac, Lionel; Masson, Daniel; Rocher, Gregory; Ryckaert, Mireille; Thomas, Gerard; Fichet, Denis; Guyot, Thierry; Miramand, Pierre; Pigeot, Jacques; Seguignes, Michel.
Cette étude, qui a rassemblé les compétences des instances de l'Etat chargées de la surveillance du milieu littoral (DDE, DDASS, IFREMER, Université de La Rochelle) a permis de dresser, à la veille de l'an 2000, un bilan de la situation environnementale du littoral de la « mer des Pertuis». Ce bilan, diversifié dans sa présentation, passe en revue les points marquants de "l'état de santé" de l'environnement, qu'il s'agisse de pollutions ciblées (chimiques, bactériologiques) ou d'autres nuisances variées. Il met en exergue les points forts et les points faibles en matière d'environnement littoral, et rappelle les efforts mis en oeuvre par les différentes administrations chargées de sa surveillance. Dans un premier temps, plus de 250 références...
Tipo: Text
Palavras-chave: Environnement; Qualité eaux; Littoral; Caractéristiques physiques; Economie; Qualité chimique; Qualité bactériologique; Phycotoxines; Biodiversité; Pollution; Recommandations; Pertuis Charentais; Département Charente-Maritime.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00072/18371/15943.pdf

Trajectoires d’évolution des communautés phytoplanctoniques au cours du processus de restauration écologique des milieux lagunaires méditerranéens
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Leruste, Amandine.
Located at the interface between marine and continental systems, coastal lagoons are among the most diverse and productive ecosystems. These semi-enclosed ecosystems are very vulnerable to nutrient enrichment. In the Languedoc-Roussillon region, anthropogenic pressures have profoundly damaged the coastal lagoons, especially those belonging to the Palavasian complex close to Montpellier. The latter lagoons have been affected by high nutrient loadings from the sewage treatment plant of the Montpellier agglomeration. This resulted in a trophic gradient among the eight lagoons in the complex, from mesotrophy to hypertrophy, with altered primary producer communities by favoring the predominance of the phytoplankton compartment.The phytoplankton responds very...
Tipo: Text
Palavras-chave: Phytoplancton; Biodiversité; Eutrophisation; Restauration; Résilience; Lagunes méditerranéennes; Phytoplankton; Biodiversity; Eutrophication; Restoration; Resilience; Mediterranean lagoons.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00498/60930/64324.pdf

Quand les politiques environnementales attisent les tensions interculturelles en Guyane française
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Jacob, Théo; Palisse, Marianne; Aubertin, Catherine.
This paper shows, from three perspectives, how the environmental policies in French Guiana, trying to deal with the local cultural diversity, tend to ethnicize social relations. The Guiana Amazonian Park, which seems to be a reaffirmation of the state’s presence in the southern French Guiana, experiments modes of governance which increase interethnic competition. The implementation of the Nagoya Protocol on Access to Genetic Resources and the Fair and Equitable Sharing of Benefits Arising from their Utilization has introduced a difference between different categories of the population : some of them must be consulted whereas the others mustn’t. Finally, people from immigration are a blind-spot of these policies. Migrants do not have any facility to access...
Tipo: Text
Palavras-chave: Politiques environnementales; Interculturalité; Biodiversité; Savoirs locaux; Démocratie; Environmental policies; Inter-ethnicity; Biodiversity; Local knowledge; Democracy.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00691/80335/83420.pdf

Utilisation de la technique vidéo STAVIRO pour l’observation et le suivi des ressources et des écosystèmes récifo-lagonaires de Mayotte. Etude pilote et recommandations pour les suivis futurs
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Roman, William; Pelletier, Dominique.
• In order to assess the sustainability of fish resources in the Natural Marine Park of Mayotte (Western Indian Ocean), indicators and monitoring protocols must be determined. • This study relied on the underwater video technique STAVIRO for assessing fish communities and resources. A pilot survey was conducted in Nov. 2014 in the south-east quarter of the Mayotte lagoon, an area encompassing the marine reserves of Longogori, M’Bouzi and the Saziley Marine Park. Out of 115 stations collected, 104 were analysed for habitat and fish, based on a list of 527 species with fishing, ecological, or emblematic interest (cf. AMBIO/A/1). • 43 indicators were computed, analysed, and for some mapped. The PAMPA computing tool was used in this purpose. • 130 fish species...
Tipo: Text
Palavras-chave: Ichtyofaune; Pêche; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Biodiversité; Ecosystème corallien; AMP; Parc Naturel Marin de Mayotte; Océan Indien; Indicateur; Tableau de bord; PAMPA; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Biodiversity; Coral reefs; MPA; Natural Marine Park of Mayotte; Western Indian Ocean; Indicator; Dashboard; PAMPA.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00373/48421/48642.pdf

Utilisation de la technique vidéo STAVIRO pour l’observation et le suivi des ressources et des écosystèmes récifo‐lagonaires de Mayotte. Etude pilote et recommandations pour les suivis futurs. Annexe 1 : Fiches métriques : Influences du statut de pêche, du type géomorphologique et de l’habitat
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Roman, William; Pelletier, Dominique; Wickel, Julien; Giannasi, Paul.
• This work deals with coral reef fish resources and communities in the Natural Marine Park of Mayotte, Western Indian Ocean). It relies on remote unbaited underwater video observations, using the STAVIRO rotating technique.  • This document is complementary to the main assessment report:  William Roman and Dominique Pelletier, 2016. The STAVIRO video technique for monitoring fish resources and reef ecosystems in the Natural Marine Park of Mayotte (Western Indian Ocean). Pilot study and recommendations for monitoring. EXPLOCEAN-IFREMER Report.  • It pertains to the assessment of resources with respect to fishing pressure and factors related to local habitat and reef geomorphology. • It comprises the description of the metrics used for the assessment:...
Tipo: Text
Palavras-chave: Ichtyofaune; Habitat; Vidéo sous-marine; STAVIRO; Evaluation; Suivi; Biodiversité; Ecosystème corallien; AMP; Parc Naturel Marin de Mayotte; Indicateur; PAMPA; Fish; Habitat; Underwater video; STAVIRO; Monitoring and assessment; Biodiversity; Coral reefs; MPA; Natural Marine Park of Mayotte; Indicator; PAMPA.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00373/48422/48643.pdf

The Gulf of Maine biogeographical information system project: developing a spatial data management framework in support of OBIS
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Tsontos, Vm; Kiefer, Da.
Central to the development of an inventory of marine life and improved conceptual understanding of the mechanisms that dynamically shape species distribution patterns is the implementation of strategies aimed at enhancing assimilation and access to existing biogeographical information. Using the Internet as a medium, the Gulf of Maine Biogeographic Information System (GMBIS) project provides a framework and a set of reusable tools for the integration, visualization, analysis and dissemination of diverse types of biogeographical and oceanographic information. End-to-end viability of this approach is demonstrated in the context of a series of scientific storylines and a pilot application for the Gulf of Maine (GoM), a well-studied ecosystem that has been...
Tipo: Text
Palavras-chave: Système d'information; Biogéographie; Biodiversité; Golfe du Maine; Information system; GIS; Biogeography; Biodiversity; Gulf of Maine.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00322/43302/43038.pdf