Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 58
Primeira ... 123 ... Última
Imagem não selecionada

Imprime registro no formato completo
A digital atlas to link ontogenic shifts in fish spatial distribution to the environment of the eastern English Channel. Dab, Limanda limanda as a case-study ArchiMer
Martin, Corinne; Vaz, Sandrine; Koubbi, Philippe; Meaden, Geoff; Engelhard, Georg H.; Lauria, Valentina; Gardel, Laure; Coppin, Franck; Delavenne, Juliette; Dupuis, Ludovic; Ernande, Bruno; Foveau, Aurelie; Lelievre, Stephanie; Morin, Jocelyne; Warembourg, Caroline; Carpentier, Andre.
The eastern English Channel, which connects the Atlantic Ocean to the North Sea through the Dover Strait, is an area where numerous and often conflicting human activities take place. A cross-border multidisciplinary project called CHARM was initiated to provide knowledge and tools for planners and decision-makers to durably manage the shared marine living resources. One such tool was an atlas of fish spatial distributions and modelled habitats, which was used here to investigate ontogenic and seasonal shifts in fish spatial distribution and habitat through a case-study, the dab Limanda limanda. Survey data for several life-history stages (eggs, larvae, coastal nurseries, < and > 1 year old) and seasons were used to map spatial patterns (using...
Tipo: Text Palavras-chave: Pleuronectidae; Limanda limanda; Eastern Channel; Spatial distribution; Modelling; Kriging; Ichthyoplankton; Trawl; CUFES.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00008/11942/8646.pdf
Imagem não selecionada

Imprime registro no formato completo
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
Imagem não selecionada

Imprime registro no formato completo
An experimental comparison of three Towed Underwater Video Systems using species metrics, benthic impact and performance ArchiMer
Sheehan, Emma V.; Vaz, Sandrine; Pettifer, Erin; Foster, Nicola L.; Nancollas, Sarah J.; Cousens, Sophie; Holmes, Luke; Facq, Jean-valery; Germain, Gregory; Attrill, Martin J..
Managing ecological systems, which operate over large spatial scales, is inherently difficult and often requires sourcing data from different countries and organizations. The assumption might be made that data collected using similar methodologies are comparable, but this is rarely tested. Here, benthic video data recorded using different towed underwater video systems (TUVSs) were experimentally compared. Three technically different TUVSs were compared on different seabed types (rocky, mixed ground and sandy) in Kingmere Marine Conservation Zone, off the south coast of England. For each TUVS, species metrics (forward facing camera), seabed impact (backward facing camera) and operational performance (strengths and limitations of equipment and video...
Tipo: Text Palavras-chave: Environmental management; Marine protected area; Meta-analyses; Sampling impact; Towed video; Underwater imagery.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00319/42984/42659.pdf
Imagem não selecionada

Imprime registro no formato completo
Application of the coastal ecosystem complex concept toward integrated management for sustainable coastal fisheries under oligotrophication ArchiMer
Hori, Masakazu; Hamaoka, Hideki; Hirota, Masahito; Lagarde, Franck; Vaz, Sandrine; Hamaguchi, Masami; Hori, Juri; Makino, Mitsutaku.
Harmonizing coastal fisheries with water-quality improvement has become an essential factor for the sustainable use of coastal ecosystem services. Here, we present the scope of our study based on an interdisciplinary approach including ecological actions, socio-economic actions and socio-psychological actions. We chose to focus on the interaction between oyster aquaculture and seagrass vegetation as a typical ecological action using the coastal ecosystem complex (CEC) concept. Coastal organisms have adapted their traits to the environment over a long period of time, so that restoration of the CEC represents reconstruction of the original process of coastal production. Subtidal seagrass vegetation with intertidal oyster reefs is the original CEC in Japan,...
Tipo: Text Palavras-chave: Oyster aquaculture; Seagrass; Indigenous and local knowledge; Integrated coastal management.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00429/54019/57439.pdf
Imagem não selecionada

Imprime registro no formato completo
Atlas des Habitats des Ressources Marines de la Manche Orientale - CHARM II ArchiMer
Carpentier, Andre; Coppin, Franck; Curet, Lucie; Dauvin, Jean-claude; Delavenne, Juliette; Dewarumez, Jean-marie; Dupuis, Ludovic; Foveau, Aurélie; Garcia, Clément; Gardel, Laure; Harrop, Stuart; Just, Roger; Koubbi, Philippe; Lauria, Valentina; Martin, Corinne; Meaden, Geoff; Morin, Jocelyne; Ota, Yoshi; Rostiaux, Emilie; Smith, Bob; Spilmont, Nicolas; Vaz, Sandrine; Villanueva, Ching-maria; Verin, Yves; Walton, Joanne; Warembourg, Caroline.
Readers of our first CHARM I atlas will know that almost everything contained within the atlas was original work resulting from two years of intensive study of the Dover Strait by a dedicated and inter- disciplinary team working from bases on either side of the Channel. The present atlas has carried on this eminent precedent, though this time covering the whole of the eastern English Channel (figure 1) and widening considerably the thematic scope. We believe that readers of this current atlas will be impressed by both the breadth and depth of the information provided, and that therefore this content should be available for use in both a wide variety of fields and at various levels of interest (researchers, industries, statutory organisations, the wider...
Tipo: Text
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/rapport-7377.pdf
Imagem não selecionada

Imprime registro no formato completo
CHARM : Atlas des Habitats des Ressources Marines de la Manche Orientale ArchiMer
Carpentier, Andre; Coppin, Franck; Dauvin, Jean-claude; Desroy, Nicolas; Dewarumez, Jean-marie; Eastwood, Paul D.; Ernande, Bruno; Harrop, Stuart; Kemp, Zarine; Koubbi, Philippe; Williams, Nigel Leader; Lefebvre, Alain; Lemoine, Michel; Loots, Christophe; S. Martin, Corinne; Meaden, Geoff J.; Ryan, Nick; Tan, Lei; Vaz, Sandrine; Walkey, Mike.
INTRODUCTION: The Dover Strait (Figure 1) connects the North Sea to the English Channel. Here, northern France and South-East England are at their closest. This narrow corridor, one of the world's busiest straits for maritime shipping, is a key economic area for numerous activities, such as leisure and tourism, international ports and shipping, plus the exploitation of living or abiotic marine resources. This area is a significant resource for fisheries because many commercial fish species are abundant there, but also because of the presence of nursery and spawning areas and migratory routes linked to specific environmental characteristics. The vulnerability of these resources, which are subjected to strong anthropogenic pressures, has brought together...
Tipo: Text Palavras-chave: Survey; Landings; Larvae; Eastern channel; Benthos; Fish; Sig; Policy analysis; Species protection; Habita protection; Protected areas; Marine biodiversity conservation.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/rapport-2350.pdf
Imagem não selecionada

Imprime registro no formato completo
Climate‐induced changes in the suitable habitat of cold‐water corals and commercially important deep‐sea fishes in the North Atlantic ArchiMer
Morato, Telmo; González‐irusta, José‐manuel; Dominguez‐carrió, Carlos; Wei, Chih‐lin; Davies, Andrew; Sweetman, Andrew K.; Taranto, Gerald H.; Beazley, Lindsay; García‐alegre, Ana; Grehan, Anthony; Laffargue, Pascal; Murillo, Francisco Javier; Sacau, Mar; Vaz, Sandrine; Kenchington, Ellen; Arnaud-haond, Sophie; Callery, Oisín; Chimienti, Giovanni; Cordes, Erik; Egilsdottir, Hronn; Freiwald, André; Gasbarro, Ryan; Gutiérrez‐zárate, Cristina; Gianni, Matthew; Gilkinson, Kent; Wareham Hayes, Vonda E.; Hebbeln, Dierk; Hedges, Kevin; Henry, Lea‐anne; Johnson, David; Koen‐alonso, Mariano; Lirette, Cam; Mastrototaro, Francesco; Menot, Lenaick; Molodtsova, Tina; Durán Muñoz, Pablo; Orejas, Covadonga; Pennino, Maria Grazia; Puerta, Patricia; Ragnarsson, Stefán Á.; Ramiro‐sánchez, Berta; Rice, Jake; Rivera, Jesús; Roberts, J. Murray; Ross, Steve W.; Rueda, José L.; Sampaio, Íris; Snelgrove, Paul; Stirling, David; Treble, Margaret A.; Urra, Javier; Vad, Johanne; Oevelen, Dick; Watling, Les; Walkusz, Wojciech; Wienberg, Claudia; Woillez, Mathieu; Levin, Lisa A.; Carreiro‐silva, Marina.
The deep sea plays a critical role in global climate regulation through uptake and storage of heat and carbon dioxide. However, this regulating service causes warming, acidification and deoxygenation of deep waters, leading to decreased food availability at the seafloor. These changes and their projections are likely to affect productivity, biodiversity and distributions of deep‐sea fauna, thereby compromising key ecosystem services. Understanding how climate change can lead to shifts in deep‐sea species distributions is critically important in developing management measures. We used environmental niche modelling along with the best available species occurrence data and environmental parameters to model habitat suitability for key cold‐water coral and...
Tipo: Text Palavras-chave: Climate change; Cold-water corals; Deep-sea; Fisheries; Fishes; Habitat suitability modelling; Octocorals; Scleractinians; Species distribution models; Vulnerable marine ecosystems.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00610/72211/71007.pdf
Imagem não selecionada

Imprime registro no formato completo
Comparison of traditional microscopy and digitized image analysis to identify and delineate pelagic fish egg spatial distribution ArchiMer
Lelievre, Stephanie; Antajan, Elvire; Vaz, Sandrine.
One of the problems concerning studies of fish egg distribution is the weak spatial and temporal resolution due to the workload that examination of a large number of samples would demand. Recently, the development of a new laboratory imaging system, the ZooScan, capable of obtaining relatively good resolution images enables automated zooplankton identification using supervised learning algorithms. This new approach was applied to formalin-fixed fish egg samples collected during French winter IBTS (International Bottom Trawl Surveys) in the Eastern English Channel and the Southern North Sea. Fish egg spatial distributions of seven species based on the microscope and ZooScan identifications were compared. Abundance and distribution maps of winter-spawning...
Tipo: Text Palavras-chave: Fish eggs; ZooScan; Image analysis; Supervised learning method; Interpolated map.
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00074/18552/16103.pdf
Imagem não selecionada

Imprime registro no formato completo
Defining a pelagic typology of the eastern English Channel ArchiMer
Delavenne, Juliette; Marchal, Paul; Vaz, Sandrine.
Classifying marine habitats is a growing research field and is of increasing interest to spatial planners and managers. Most studies have predominantly focused on the seabed to determine benthic habitat types, and only limited attention has been paid to the water column. Classification projects aim at identifying candidate management units for the application of various regional or national regulations such as the European Water Framework Directive. Here, we propose a seasonal classification of the water column in the eastern English Channel, which we validated with biological data. For the three tested compartments, phytoplankton, zooplankton and pelagic fishes, the validation results were satisfactory, with recall values (i.e. percentage of observations...
Tipo: Text Palavras-chave: Eastern English Channel; Pelagic typology; Clustering analysis; Seasonality.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00125/23655/22689.pdf
Imagem não selecionada

Imprime registro no formato completo
Delineating recurrent fish spawning habitats in the North Sea ArchiMer
Lelievre, Stephanie; Vaz, Sandrine; Martin, C. S.; Loots, Christophe.
The functional value of spawning habitats makes them critically important for the completion of fish life cycles and spawning grounds are now considered to be “essential habitats”. Inter-annual fluctuations in spawning ground distributions of dab (Limanda Limanda), plaice (Pleuronectes platessa), cod (Gadus morhua) and whiting (Merlangius merlangus) were investigated in the southern North Sea and eastern English Channel, from 2006 to 2009. The preferential spawning habitats of these species were modelled using generalised linear models, with egg distribution being used as proxy of spawners’ location. Egg spatial and temporal distributions were explored based on six environmental variables: sea surface temperature and salinity, chlorophyll a concentration,...
Tipo: Text Palavras-chave: Egg Distribution; Spawning Grounds; North Sea; Temporal Variability; Habitat Modelling; GLM.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00185/29674/28046.pdf
Imagem não selecionada

Imprime registro no formato completo
Eastern English Channel fish assemblages: measuring the structuring effect of habitats on distinct sub-communities ArchiMer
Vaz, Sandrine; Carpentier, Andre; Coppin, Franck.
Multivariate and spatial analyses are used to identify and locate fish, cephalopod, and macrocrustacean species assemblages in the eastern English Channel from 1988 to 2004. Four sub-communities with varying diversity levels were identified in relation to depth, salinity, temperature, seabed shear stress, sediment type, and benthic community nature. From 1997 to 2004, some 25% of overall community structure variance could be related to the available environmental descriptors and 20% to persistent factors such as depth, seabed shear stress, sediment, and macro-invertebrate community type. Although there may be significant interannual shifts in overall community structure and composition, the sub-communities identified persisted over time, reflecting the...
Tipo: Text Palavras-chave: Structuring environment; Spatial patterns; Fish community; Eastern English Channel; Diversity.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-2829.pdf
Imagem não selecionada

Imprime registro no formato completo
Evaluating conservation and fisheries management strategies by linking spatial prioritization software and ecosystem and fisheries modelling tools ArchiMer
Metcalfe, Kristian; Vaz, Sandrine; Engelhard, Georg H.; Villanueva, Ching-maria; Smith, Robert J.; Mackinson, Steven.
Well-designed marine protected area (MPA) networks can deliver a range of ecological, economic and social benefits, and so a great deal of research has focused on developing spatial conservation prioritization tools to help identify important areas. However, whilst these software tools are designed to identify MPA networks that both represent biodiversity and minimize impacts on stakeholders, they do not consider complex ecological processes. Thus, it is difficult to determine the impacts that proposed MPAs could have on marine ecosystem health, fisheries and fisheries sustainability. Using the eastern English Channel as a case study, this paper explores an approach to address these issues by identifying a series of MPA networks using the Marxan and Marxan...
Tipo: Text Palavras-chave: Ecopath with Ecosim; Ecospace; Marine spatial zoning; Marine trophic index; Marxan; Marxan with Zones; Systematic conservation planning.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00254/36538/37818.pdf
Imagem não selecionada

Imprime registro no formato completo
Evaluation des ressources halieutiques par les campagnes scientifiques françaises - Façade "Manche est" et façade "Loire-Gironde" ArchiMer
Delpech, Jean-paul; Mahe, Kelig; Mehault, Sonia; Rostiaux, Emilie; Biais, Gerard; Coppin, Franck; Vaz, Sandrine.
This report is a result of a contract between Ifremer and the French Ministry of Industry. The aim was to map the distribution of the fisheries resources from french scientific surveys. 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: Bay of Biscay; Eastern Channel; Juvenile; Adult; Abundance index; Specific richness; Mapping; Fisheries; Scientific survey; Golfe de Gascogne; Manche est; Juvénile; Adulte; Indice d'abondance; Richesse spécifique; Cartographie; Campagne halieutique.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/rapport-6642.pdf
Imagem não selecionada

Imprime registro no formato completo
Exemple d’étude d’impact du changement climatique sur la ressource halieutique, le projet CHARM ArchiMer
Vaz, Sandrine.
Le programme européen de coopération transfrontalière INTERREG IV a soutenu le projet de recherche CHARM (CHannel integrated Approach for marine Resource Management) avec un cofinancement par le FEDER. Ce projet franco-britannique proposait un ensemble d’instruments intégrant les connaissances scientifiques essentielles pour une gestion durable des ressources marines vivantes de la Manche.
Tipo: Text
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00308/41880/41143.pdf
Imagem não selecionada

Imprime registro no formato completo
Exploring habitat credits to manage the benthic impact in a mixed fishery ArchiMer
Batsleer, J.; Marchal, Paul; Vaz, Sandrine; Vermard, Youen; Rijnsdorp, A. D.; Poos, J. J..
The performance of a combined catch quota and habitat credit system was explored to manage the sustainable exploitation of a mix of demersal fish species and reduce the benthic impacts of bottom trawl fisheries using a dynamic state variable model approach. The model was parameterised for the Eastern English Channel demersal mixed fishery using otter trawls or dredges. Target species differed in their association with habitat types. Restricting catch quota for plaice and cod had a limited effect on benthic impact, except when reduced to very low values, forcing the vessels to stay in port. Quota management had a minimal influence on fishing behaviour and hence resulted in a minimal reduction of benthic impact. Habitat credits may reduce the benthic impacts...
Tipo: Text Palavras-chave: Fleet dynamics; Dynamic state variable modelling; TAC; Total allowable catch; Mixed fisheries; Eastern English Channel; Plaice; Cod.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00418/52997/53997.pdf
Imagem não selecionada

Imprime registro no formato completo
From Data to End-to-End Models: 15 Years of Research to Describe the Dynamics of Exploited Marine Ecosystems in the Eastern Channel ArchiMer
Marchal, Paul; Gasche, Loic; Girardin, Raphael; Le Pape, Olivier; Huret, Martin; Mahevas, Stephanie; Travers-trolet, Morgane; Vaz, Sandrine.
Considerable research has been conducted in the past 15 years around the Eastern English Channel ecosystem. Data collected since the 1970s on the biotic and abiotic compartments have been collated and mapped out in the mid-2000. This spatially explicit information formed a sound basis to improve knowledge on, and model, the functioning and dynamics of key ecosystem compartments, with a focus on flatfish species and fisheries and their interactions with other sectors of activity (aggregate extractions, maritime traffic). The more recent ongoing works are dedicated to the integration of those processes into several complementary end-to-end ecosystem models.
Tipo: Text Palavras-chave: Eastern English Channel; Flatfish; Spatial analyses; Ecosystem modelling.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00293/40420/38946.pdf
Imagem não selecionada

Imprime registro no formato completo
Harmonisation des suivis de la mégafaune invertébrée benthique sur les campagnes halieutiques de l'Ifremer ArchiMer
Hazevis, Gaetan; Baudrier, Jerome; Laffargue, Pascal; Brind'Amour, Anik; Delaunay, Damien; Vaz, Sandrine.
L’Ifremer mène de nombreuses campagnes halieutiques dédiées aux peuplements benthiques et démersaux (invertébrés et poissons commerciaux/non-commerciaux). Depuis plusieurs années, en application de l’approche écosystémique, l’ensemble de la faune invertébrée benthique collectée dans les engins de pêche est suivi de manière systématique. Ces données complémentaires sont parfois recueillies à la seule initiative des équipes embarquantes, sans coordination méthodologique particulière entre les campagnes. Leur collecte ne fait souvent l’objet d’aucune obligation contractuelle alors qu’elles sont de plus en plus utilisées dans le cadre de travaux de recherche ou en appui aux politiques publiques. Ainsi, des disparités sont observées entre les campagnes,...
Tipo: Text
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00502/61360/64979.pdf
Imagem não selecionada

Imprime registro no formato completo
Impact du chalutage dans le golfe du Lion ArchiMer
Vaz, Sandrine.
Short description of research in progress about trawling impact on benthic communities in the Gulf of Lions
Tipo: Text
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00486/59727/62823.pdf
Imagem não selecionada

Imprime registro no formato completo
Impacts of data quality on the setting of conservation planning targets using the species-area relationship ArchiMer
Metcalfe, Kristian; Delavenne, Juliette; Garcia, Clement; Foveau, Aurelie; Dauvin, Jean-claude; Coggan, Roger; Vaz, Sandrine; Harrop, Stuart R.; Smith, Robert J..
Aim : The speciesarea relationship (SAR) is increasingly being used to set conservation targets for habitat types when designing protected area networks. This approach is transparent and scientifically defensible, but there has been little research on how it is affected by data quality and quantity. Location : English Channel. Methods : We used a macrobenthic dataset containing 1314 sampling points and assigned each point to its associated habitat type. We then used the SAR-based approach and tested whether this was influenced by changes in (i) the number of sampling points used to generate estimates of total species richness for each habitat type; (ii) the nonparametric estimator used to calculate species richness; and (iii) the level of habitat...
Tipo: Text Palavras-chave: English Channel; Habitat targets; Marine Conservation Zones; Marine protected areas; Species-area relationship; Systematic conservation planning.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00116/22745/20689.pdf
Imagem não selecionada

Imprime registro no formato completo
Integrating molecular identification of pelagic eggs with geostatistical mapping to improve the delineation of North Sea fish spawning grounds ArchiMer
Lelievre, Stephanie; Jerome, Marc; Maes, Gregory E.; Vaz, Sandrine; Calaivany, Sachidhanandam; Verrez-bagnis, Veronique.
Maps of the spawning grounds of commercially important fishes are necessary when assessing the level of connectivity between life stages of fishes and for identifying ecologically valuable marine areas. A first step toward mapping the spawning grounds is a reliable and rapid species identification of pelagic fish eggs to assess the spatio-temporal distribution of spawning aggregations. As many species have similar egg sizes and morphology, the molecular validation of visually identified eggs is often essential for the use of such data in fisheries management. In the present study, we developed a rapid 16S rRNA PCR-restriction fragment length polymorphism (RFLP) assay to distinguish between formalin-fixed fish eggs of dab Limanda limanda, flounder...
Tipo: Text Palavras-chave: Fish eggs; PCR-RFLP; 16S rRNA; Geostatistical analyses; Distribution; Spawning grounds.
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00059/16999/14536.pdf
Registros recuperados: 58
Primeira ... 123 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional