Consulta: creatorFacets:"Vaz, Sandrine"
Registros recuperados: 69
Data/hora: 13/06/2024 11:06:33

Atlas des Habitats des Ressources Marines de la Manche Orientale - CHARM II
Provedor de dados: 5
Autores: 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

The Channel habitat atlas for marine resource management (CHARM): an aid for planning and decision-making in an area under strong anthropogenic pressure
Provedor de dados: 5
Autores: Martin, C. S.; Carpentier, Andre; Vaz, Sandrine; Coppin, Franck; Curet, L.; Dauvin, J. -c.; Delavenne, Juliette; Dewarumez, J. -m.; Dupuis, L.; Engelhard, G.; Ernande, Bruno; Foveau, A.; Garcia, C.; Gardel, Laure; Harrop, S.; Just, R.; Koubbi, P.; Lauria, Valentina; Meaden, G. J.; Morin, Jocelyne; Ota, Y.; Rostiaux, Emilie; Smith, R.; Spilmont, N.; Verin, Yves; Villanueva, Ching-maria; Warembourg, Caroline.
The eastern English Channel, the narrow channel of water separating northern France and southeast England is an area of intense human use of the array of resources concentrated into its relative small area. The vulnerability of living resources and their habitats brought together French and British maritime experts within a common project (called CHARM): to create an atlas of marine resource habitats in the eastern English Channel so as to provide planners and decision-makers with the necessary information to help managing the use of its living and non-living resources. This multidisciplinary and richly illustrated atlas provides abundant information on the legal framework and physical environment; benthic invertebrates, fish and their habitats; fishing...
Tipo: Text
Palavras-chave: Eastern English Channel; Dover Strait; Benthos; Fish; Habitat; Ecosystem; Marine spatial planning; Fisheries; Legislation; Trophic network; Food web; GIS; Geographic Information System.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00000/11169/7523.pdf

Exemple d’étude d’impact du changement climatique sur la ressource halieutique, le projet CHARM
Provedor de dados: 5
Autores: 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

Modelling species distributions using regression quantiles
Provedor de dados: 5
Autores: Vaz, Sandrine; Martin, C; Eastwood, P; Ernande, Bruno; Carpentier, Andre; Meaden, G; Coppin, Franck.
1. Species distribution modelling is an important and well-established tool for conservation planning and resource management. Modelling techniques based on central estimates of species responses to environmental factors do not always provide ecologically meaningful estimates of species-environment relationships and are being increasingly questioned.   2. Regression quantiles (RQ) can be used to model the upper bounds of species-environment relationships and thus estimate how the environment is limiting the distribution of a species. The resulting models tend to describe potential rather than actual patterns of species distributions.   3. Model selection based on null hypothesis testing and backward elimination, followed by validation procedures, are...
Tipo: Text
Palavras-chave: Marine fish; Limiting factors; Habitat; Geographical information systems; Distribution models.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-3730.pdf

Detecting adverse effect on seabed integrity. Part 2: How much of seabed habitats are left in good environmental status by fisheries?
Provedor de dados: 5
Autores: Jac, Cyrielle; Desroy, Nicolas; Certain, Gregoire; Foveau, Aurelie; Labrune, Céline; Vaz, Sandrine.
By relating observed changes to the pressures suffered, the Marine Strategy Framework Directive intends to better control the factors of environmental degradation and to manage their consequences in European waters. Several descriptors are defined within the framework of the MFSD and in particular descriptor 1 relating to the biological diversity of the seabed and descriptor 6 relating to the seabed integrity (i.e. the quality of their structures and functions). For each descriptor, indicators and threshold values must be defined and a novel conceptual approach to define and detect seabed integrity thresholds is proposed here. Bottom trawling being the main source of shelf continental disturbance, it is important to evaluate its impact on benthic habitat....
Tipo: Text
Palavras-chave: GES; Threshold values; Trawling impact; Indices; MFSD.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00634/74575/74464.pdf

Linking spawning ground extent to environmental factors - patterns and dispersal during the egg phase of four North Sea fishes.
Provedor de dados: 5
Autores: Hoffle, Hannes; Van Damme, Cindy J. G.; Fox, Clive; Lelievre, Stephanie; Loots, Christophe; Nash, Richard D. M.; Vaz, Sandrine; Wright, Peter J.; Munk, Peter.
Previous studies have shown that four commercially important demersal species, namely cod (Gadus morhua), haddock (Melanogrammus aeglefinus), whiting (Merlangius merlangus) and plaice (Pleuronectes platessa) spawn in distinct areas across the North Sea. Based on two comprehensive ichthyoplankton surveys in 2004 and 2009, the present study uses Generalized Additive Mixed Models (GAMMs) to delimit these spawning grounds using the distribution of recently spawned eggs, investigates their relationship to specific environmental conditions and examines egg dispersal during their development. Results indicate that presence/absence of early stage eggs is more related to temporal and topographic variables, while egg densities are closely linked with hydrography....
Tipo: Text
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00385/49641/50157.pdf

We can reduce the impact of scientific trawling on marine ecosystems
Provedor de dados: 5
Autores: Trenkel, Verena; Vaz, Sandrine; Albouy, Camille; Brind'Amour, Anik; Duhamel, Erwan; Laffargue, Pascal; Romagnan, Jean-baptiste; Simon, Julien; Lorance, Pascal.
The negative impacts that scientific monitoring may have on marine ecosystems has been a neglected topic, mainly on the basis that its magnitude is minor compared to commercial fisheries, even though this raises ethical and, in certain cases, conservation issues. We argue that ethical principles should lead us to reconsider marine wildlife resource monitoring such as the fish and shellfish trawl surveys providing the science-based evidence needed for fisheries management and assessment of how environmental change impacts marine shelf communities worldwide. Recent scientific and technological progress has provided methods and tools which might now be harnessed to reduce the impact of marine monitoring. We review these alternative methods, consider...
Tipo: Text
Palavras-chave: Monitoring ethics; Marine surveying; Impacts of bottom trawling; Genetic methods; Ecosystem-based management.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00470/58161/60665.pdf

Evaluation des ressources halieutiques par les campagnes scientifiques françaises - Façade "Manche est" et façade "Loire-Gironde"
Provedor de dados: 5
Autores: 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

Modelling spatial distribution of epibenthic communities in the Gulf of St. Lawrence (Canada)
Provedor de dados: 5
Autores: Moritz, Charlotte; Levesque, Melanie; Gravel, Dominique; Vaz, Sandrine; Archambault, Diane; Archambault, Philippe.
Correlative habitat models using relationships between marine organisms and their surrounding environment can be used to predict species distribution, and the results can assist management of human activities sharing the marine space (e.g. fisheries, MPAs, tourism). Here, epi-benthic megafauna was sampled at 755 stations in the Lower Estuary and Northern Gulf of St. Lawrence (EGSL) each summer between 2006 and 2009. We combined various types of multivariate analyses to 1) describe the structure and spatial distribution of benthic communities, 2) analyse the relationship between these communities and environmental parameters, and subsequently 3) build a community distribution model to predict the spatial distribution of the communities, creating community...
Tipo: Text
Palavras-chave: Biodiversity; Epibenthic Communities; Estuary and Northern Gulf of St. Lawrence; Generalized Linear Model; Community Distribution Model; Redundancy Analysis.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00138/24972/23997.pdf

Striped red mullet (Mullus surmuletus, Linnaeus, 1758) in the eastern English Channel and southern North Sea: growth and reproductive biology
Provedor de dados: 5
Autores: Mahe, Kelig; Coppin, Franck; Vaz, Sandrine; Carpentier, Andre.
Biological information is necessary for population structure assessment of economically important species. There are no known published studies on the age and reproduction of Mullus surmuletus in the north of the Bay of Biscay. The aim of this study was to estimate growth and reproductive biology of this species in the eastern English Channel and southern North Sea from 1089 individuals, observed from February to December 2004. The length–weight relationship was described by the parameters: a = 3.284.10−6 and b = 3.243, being allometrically positive. Ages were determined from increments of otoliths, used entirely after a burning treatment. Marginal-increment analysis showed an annual periodicity of increment formation. Von Bertalanffy growth equations were...
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00148/25903/23960.pdf

ISADO - Identification des frayères du Détroit du Pas-De-Calais et des zones marines adjacentes
Provedor de dados: 5
Autores: Lelievre, Stephanie; Vaz, Sandrine; Martin, Cs.
Spawning is an essential element of the life cycle of marine fish. Fish eggs present a high natural mortality, which makes them a particularly vulnerable stage of fish development.With more and more fish species becoming over-exploited, commercial fisheries are increasingly sensitive to fluctuations in the recruitment of young individuals to the spawningstock. Egg data were collected in the southern part of the North Sea and Dover Strait using a Continuous Underway Fish Egg Sampler(CUFES). With co-funding from the Interreg IIIa Programme, the ISADO (Identification of the Spawning Areas in the Dover Strait and adjacent marine areas) project processed800+ egg samples, with the development of a taxonomic identification key. The spawning areas of seven fish...
Tipo: Text
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/rapport-3831.pdf

Rapport du projet PECHALO (Pêche Chalutière Occitanie) : Etude de l’impact de l’adaptation des stratégies de pêche et des navires de la flottille chalutière occitane pour améliorer leur viabilité et la durabilité de l’activité
Provedor de dados: 5
Autores: Leforestier, Sophie; Lehuta, Sigrid; Mahevas, Stephanie; Jadaud, Angelique; Vaz, Sandrine.
Dans le Golfe du Lion, le mauvais état des stocks de petits pélagiques a entrainé à partir de 2009 un report de l’activité chalutière pélagique vers les pêcheries démersales. Cette augmentation de la pression de pêche sur les espèces démersales ne facilite pas l’amélioration de l’état de la population de merlu dont le niveau d'exploitation est actuellement 12 fois supérieur au niveau estimé comme durable. En 2018, de nouvelles mesures complémentaires ont été proposées (réduction de l’effort de pêche, fermeture de zones) afin d’assurer un retour au Rendement Maximum Durable du merlu d’ici 2020. Cependant à ce jour les conséquences de ces mesures de gestion sur la pêcherie sont difficilement prévisibles. Une approche basée sur un simulateur de dynamique de...
Tipo: Text
Palavras-chave: Pêcherie chalutière; Occitanie; Gestion durable; Viabilité; Merlu; ISISFISH.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00622/73377/72577.pdf

Morphological variability of the shape of striped red mullet Mullus surmuletus in relation to stock discrimination between the Bay of Biscay and the eastern English Channel
Provedor de dados: 5
Autores: Mahe, Kelig; Villanueva, Ching-maria; Vaz, Sandrine; Coppin, Franck; Koubbi, Philippe; Carpentier, Andre.
Striped red mullet Mullus surmuletus L. 1758 is an economically important species in the Mediterranean Sea and in the northern Atlantic Ocean, where it is exploited from the Bay of Biscay to the southern North Sea (ICES, 2010). In Atlantic waters, there are two main areas where this species is caught, the Bay of Biscay and the eastern English Channel. This species was initially exploited by the Spanish fleets along the Spanish coast inside the Bay of Biscay. Originally considered as valuable by-catch (Marchal, 2008), the growing exploitation ofM. surmuletus and a conspicuous increase in landings in the English Channel and the southern North Sea by French, English and Dutch fleets have been observed from the 1990s onwards. This was attributed to an increase...
Tipo: Text
Palavras-chave: Stock identification; Head morphology; Fish body shape; Truss model; Morphometric analysis.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00185/29587/28050.pdf

Comparison of traditional microscopy and digitized image analysis to identify and delineate pelagic fish egg spatial distribution
Provedor de dados: 5
Autores: 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

Rapport final du projet CHAMILA (Cartographie des habitats en milieu lagunaire méditerranéen)
Provedor de dados: 5
Autores: Menu, Marion; Vaz, Sandrine; Bajjouk, Touria; Derolez, Valerie; Fiandrino, Annie; Giraud, Anais; Grillas, Patrick; Ouisse, Vincent.
Coastal Mediterranean lagoons are often defined as homogeneous ecosystems that home many migratory and sedentary species. They also host strong salinity gradients, depth variation and very diverse plant communities, which create small-scale heterogeneity within lagoons. This is why each lagoon must be described as an entity by itself made up of a multitude of homogeneous features, called habitats, which support specific ecological functions for organisms (nursery, feeding, protection against predators...). Although many studies have resulted in collecting high numbers of physical, chemical and biological data in coastal Mediterranean lagoons, there is currently a lack of knowledge of the spatial distribution of these habitats. In our project, we (1)...
Tipo: Text
Palavras-chave: Habitat; Cartographie; Typologie; Lagune méditerranéenne; Habitat; Map; Typology; Mediterranean lagoons.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00593/70545/73353.pdf

No more reason for ignoring gelatinous zooplankton in ecosystem assessment and marine management: Concrete cost-effective methodology during routine fishery trawl surveys
Provedor de dados: 5
Autores: Aubert, A.; Antajan, Elvire; Lynam, C.; Pitois, S.; Pliru, A.; Vaz, Sandrine; Thibault, D.
Gelatinous zooplankton, including cnidarians, ctenophores, and tunicates (appendicularians, pyrosomes, salps and doliolids), are often overlooked by scientific studies, ecosystem assessments and at a management level. Despite the important economic consequences that they can have on human activities and on the marine foodweb, arguments often related to the costs of monitoring or their coordination, or simply negligence, have resulted in the absence of relevant monitoring programs. A cost-effective protocol has been applied on trawling from existing fishery surveys conducted by national laboratories in England and France. The testing phase has successfully demonstrated the adequacy of such a tool to sample macro- and mega-zooplankton gelatinous organisms in...
Tipo: Text
Palavras-chave: Gelatinous zooplankton; Jellyfish; Monitoring; Trawl; Marine management; MSFD.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00416/52771/53934.pdf

Using underwater video to assess megabenthic community vulnerability to trawling in the Grande Vasière (Bay of Biscay)
Provedor de dados: 5
Autores: Merillet, Laurene; Mouchet, Maud; Robert, Marianne; Salaun, Michele; Schuck, Lucie; Vaz, Sandrine; Kopp, Dorothee.
Trawling activities are considered to be one of the main sources of disturbance to the seabed worldwide. We aimed to disentangle the dominance of environmental variations and trawling intensity in order to explain the distribution of diversity patterns over 152 sampling sites in the French trawl fishing-ground, the Grande Vasière. Using a towed underwater video device, we identified 39 taxa to the finest taxonomic level possible, which were clustered according to their vulnerability to trawling disturbance based on functional traits. Using generalized linear models, we investigated whether the density distribution of each vulnerability group was sensitive to trawling intensity and habitat characteristics. Our analyses revealed a structuring effect of depth...
Tipo: Text
Palavras-chave: Bay of Biscay; Biodiversity; Bottom trawl; Fishing; Underwater video; Vulnerability.
Ano: 2018
URL: http://archimer.ifremer.fr/doc/00406/51741/52436.pdf

Detecting adverse effect on seabed integrity. Part 1: Generic sensitivity indices to measure the effect of trawling on benthic mega-epifauna
Provedor de dados: 5
Autores: Jac, Cyrielle; Desroy, Nicolas; Certain, Gregoire; Foveau, Aurelie; Labrune, Céline; Vaz, Sandrine.
The benthic fauna of European continental shelves is a severely impacted community, mostly due to intense bottom trawling activity. Trawling effect may be dependent on the spatial and temporal distribution of abrasion, the habitat type including natural perturbation intensity and the fishing gear used. Nonetheless, there is an urgent need to identify or develop indices likely to measure the effect of trawling. For this purpose benthic fauna by-catch monitored in scientific trawl surveys carried out in all European waters in the frame of the Common Fishery Policy Data Collection Multiannual Program may be used. Benthic invertebrates data used in this study were collected during scientific bottom trawl surveys covering the English Channel, the North Sea and...
Tipo: Text
Palavras-chave: Benthic sensitivity; Trawling effect; Indices; Seabed integrity; MSFD.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00635/74693/74606.pdf

Application of the coastal ecosystem complex concept toward integrated management for sustainable coastal fisheries under oligotrophication
Provedor de dados: 5
Autores: 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

Toward a Dynamical Approach for Systematic Conservation Planning of Eastern English Channel Fisheries
Provedor de dados: 5
Autores: Reecht, Yves; Gasche, Loïc; Lehuta, Sigrid; Vaz, Sandrine; Smith, Robert J; Mahevas, Stephanie; Marchal, Paul.
In the past decade, systematic conservation planning tools have been increasingly and successfully used to set spatial conservation plans that meet quantitative protection targets while minimizing enforcement and socioeconomic costs. However, when applied to fisheries, systematic conservation planning fails to account for (1) changes in fleet dynamics induced by new conservation constraints and their associated feedbacks on conservation costs or (2) their influence on fish population dynamics and distributions, which may in turn alter the achievement of conservation targets. Such a static approach may therefore lead to short- or medium-term misestimates in forecasted costs and target achievements. In order to circumvent such limitations of systematic...
Tipo: Text
Palavras-chave: MPAs; Systematic conservation planning; Mixed fisheries dynamics; Model coupling; Eastern English Channel; Marxan with Zones; ISIS-Fish.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00293/40421/39077.pdf

Spatio-temporal patterns in demersal elasmobranchs from trawl surveys in the eastern English Channel (1988-2008)
Provedor de dados: 5
Autores: Martin, Corinne; Vaz, Sandrine; Ellis, J. R.; Coppin, Franck; Le Roy, Didier; Carpentier, Andre.
Elasmobranchs have life-history characteristics that make them more vulnerable to fishing than many teleost fish. As commercial landings data are usually not sufficient for the monitoring and assessment of elasmobranchs, fisheries-independent data, geostatistics and Geographic Information Systems were used to investigate the spatio-temporal patterns of sharks (6 species), skates (9 species) and stingray in the eastern English Channel. Temporal trends in relative abundance and distributions of total-length frequencies were investigated using data collected over 21 yr from an annual survey using a Grande Ouverture Verticale (GOV) trawl. Temporal trends in relative abundance were examined qualitatively in relation to the reported conservation status for the...
Tipo: Text
Palavras-chave: Elasmobranchii; Chondrichthyes; Kriging; GIS; Conservation; Sex ratio; Catchability; Channel Ground Fish Survey; CGFS.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00019/13029/10160.pdf

Identification de la période la plus pertinente pour l’interdiction de 3 mois chaque année, de la pêche au chalut jusqu’à 6 milles marins de la côte en mer Méditerranée
Provedor de dados: 5
Autores: Bourjea, Jerome; Billet, Norbert; Certain, Gregoire; Jadaud, Angelique; Vaz, Sandrine.
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00506/61726/65701.pdf

Large-scale distribution of a deep-sea megafauna community along Mediterranean trawlable grounds
Provedor de dados: 5
Autores: Fernandez-arcaya, Ulla; Bitetto, Isabella; Esteban, Antonio; Farriols, M. Teresa; García-ruiz, Cristina; Gil De Sola, Luis; Guijarro, Beatriz; Jadaud, Angelique; Kavadas, Stefanos; Lembo, Giuseppe; Milisenda, Giacomo; Maina, Irida; Petovic, Slavica; Sion, Letizia; Vaz, Sandrine; Massutí, Enric.
The large-scale distribution pattern of megafauna communities along the Mediterranean middle slope was explored. The study was conducted between 500 and 800 m depth where deep-water fishery occurs. Although community studies carried out deeper than 500 m are partly available for some geographic areas, few large-scale comparative studies have been carried out. Within the framework of the MEDITS survey programme, we compared the megafauna community structure in ten geographical sub-areas (GSAs) along the Mediterranean coasts. Additionally, the spatial distribution of fishing was analysed using vessel monitoring by satellite information. Overall, the community showed a significant difference between sub-areas, with a decreasing eastward pattern in abundance...
Tipo: Text
Palavras-chave: Distribution pattern; Fishing impact; Continental slope; Deep sea; Megafauna; Red shrimp; Community.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00489/60051/63328.pdf

Occurrences connues des espèces indicatrices d’Ecosystèmes Marins Vulnérables de Méditerranée
Provedor de dados: 5
Autores: Menot, Lenaick; Fabri, Marie-claire; Vaz, Sandrine.
Dans le cadre de la mise en œuvre de la Directive Cadre sur le Milieu Marin (DCSMM), l’un des objectifs environnementaux est d’éviter l’abrasion et l’étouffement des zones les plus représentatives des habitats profonds (Ecosystèmes Marins Vulnérables, EMV). Pour la façade méditerranéenne, la fiche d’opérationnalisation de cet objectif (D01-HB-OE10) définie les EMV comme incluant le Corail Bambou (Isidella elongata), les coraux froids, les fonds à crinoïdes (Leptometra phalangium) et les fonds à pennatulaires (Funiculina quadrangularis) au-delà de 200 m de profondeur ou au-delà de 60m de profondeur dans le cas particulier du plateau oriental corse. L’Ifremer en tant que contributeur technique est chargé d’agréger les données existantes sur les occurrences...
Tipo: Text
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00676/78812/81056.pdf

Quantitative mapping of fish habitat: A useful tool to design spatialised management measures and marine protected area with fishery objectives
Provedor de dados: 5
Autores: Le Pape, O.; Delavenne, Juliette; Vaz, Sandrine.
The delineation of essential fish habitats is necessary to identify, design and prioritize efficient marine protected area (MPA) networks with fishery objectives, capable, in addition to other possible objectives and functions of MPAs, of sustaining the renewal of marine living resources. Both the methods available to map essential fish habitats and the usefulness of these maps are discussed in this paper.  Generally, the first step to obtain maps of essential fish habitats consists in choosing one of the numerous existing statistical approaches to build robust habitat suitability models linking relevant descriptors of the marine environment to the spatial distribution of fish presence or density. When these descriptors are exhaustively known, i.e. maps...
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00165/27585/25791.pdf

Impact du chalutage dans le golfe du Lion
Provedor de dados: 5
Autores: 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

Spatial patterns and GIS habitat modelling of Solea solea, Pleuronectes flesus and Limanda limanda fish larvae in the eastern English Channel during the spring
Provedor de dados: 5
Autores: Koubbi, Philippe; Loots, Christophe; Cotonnec, Gwenaelle; Harlay, Xavier; Grioche, Alain; Vaz, Sandrine; Martin, Canterbury Christ Church University; Walkey, Mike; Carpentier, Andre.
The spring distribution of larval fish stages of flatfishes in the Dover Strait (eastern English Channel) was studied in 1995 and 1999. Fish larvae were identified and sorted according to developmental stages in order to study their ontogenic distribution. The French coastal waters are characterised by an unstable tide-dependent front, which influences larval dispersion. In spring, the French coastal waters have a high phytoplanktonic production. They have higher temperatures, lower salinities and differences in current intensity compared with the central English Channel waters. Generalised Additive Models (GAM) combined with Geographic Information Systems (GIS) were used to model the potential habitats of life stages considering data from three major...
Tipo: Text
Palavras-chave: English Channel; Fish larvae; Geostatistics; GIS; GAM.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-2090.pdf

Morphospecies and taxonomic sufficiency of benthic megafauna in scientific bottom trawl surveys
Provedor de dados: 5
Autores: Brind'Amour, Anik; Laffargue, Pascal; Morin, Jocelyne; Vaz, Sandrine; Foveau, Aurelie; Le Bris, Herve.
Scientific fisheries surveys routinely identify a large diversity of commercial and non-commercial benthic megainvertebrates that could provide useful information for Marine Strategy Framework Directive (MSFD) descriptors. Species is obviously the basic taxonomic level to which most ecological studies and theories refer. Identification at this level of organization is indeed always preferred over any other taxonomic level. Nevertheless, aggregation of species to higher taxonomic levels may be unavoidable sometimes, since errors of identification are known or suspected to occur in many surveys. Using analyses of taxonomic sufficiency (identification of organisms at various taxonomic resolutions) and groups of morphospecies (taxa identified easily by...
Tipo: Text
Palavras-chave: Bay of Biscay; English Channel; North Sea; Taxonomic sufficiency; Benthic descriptor; Bottom trawl surveys.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00162/27309/25538.pdf

From Data to End-to-End Models: 15 Years of Research to Describe the Dynamics of Exploited Marine Ecosystems in the Eastern Channel
Provedor de dados: 5
Autores: 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

Spatial interactions between saithe (Pollachius virens) and hake (Merluccius merluccius) in the North Sea
Provedor de dados: 5
Autores: Cormon, Xochitl; Loots, Christophe; Vaz, Sandrine; Vermard, Youen; Marchal, Paul.
Spatial interactions between saithe (Pollachius virens) and hake (Merluccius merluccius) were investigated in the North Sea. Saithe is a well-established species in the North Sea, while occurrence of the less common hake has recently increased in the area. Spatial dynamics of these two species and their potential spatial interactions were explored using binomial generalized linear models (GLM) applied to the International Bottom Trawl Survey (IBTS) data from 1991 to 2012. Models included different types of variables: (i) abiotic variables including sediment types, temperature, and bathymetry; (ii) biotic variables including potential competitors and potential preys presence; and (iii) spatial variables. The models were reduced and used to predict and map...
Tipo: Text
Palavras-chave: Biotic interactions; Competition; Generalized linear models; Hake; North Sea; Overlap; Predator-prey relationship; Saithe; Species distribution modelling.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00200/31146/29847.pdf

CHARM : Atlas des Habitats des Ressources Marines de la Manche Orientale
Provedor de dados: 5
Autores: 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

L'état des communautés exploitées au large des côtes de France. Application d'indicateurs à l'évaluation de l'impact de la pêche. Bilan 2004 – Edition 2009
Provedor de dados: 5
Autores: Morin, Jocelyne; Bertrand, Jacques; Cochard, Marie-laure; Coppin, Franck; Leaute, Jean-pierre; Lobry, Jeremy; Mahe, Jean-claude; Poulard, Jean-charles; Rochet, Marie-joelle; Schlaich, Ivan; Souplet, Arnauld; Trenkel, Verena; Vaz, Sandrine; Verin, Yves.
Since about twenty years, Ifremer have carried out fishery surveys along the French coasts. A dynamic indicator-based approach to the assessment of multi-stock fisheries has been applied to these data series. Reference points for non-commercial populations and community indicators are seldom available, but reference directions are well established: it is known whether fishing will increase or decrease the indicator, hence the direction that should be avoided. A set of simple indicators of fishing impacts on fish populations and communities were estimated from time-series data provided by scientific surveys (population abundance and average length, community total biomass and number, average length and weight, and size spectrum). Trends in these indicators...
Tipo: Text
Palavras-chave: Communauté; Population; Indicateurs; Campagnes scientifiques; Pêcheries multi spécifiques; Approche écosystémique pour la gestion des pêches.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/rapport-7293.pdf

Climate‐induced changes in the suitable habitat of cold‐water corals and commercially important deep‐sea fishes in the North Atlantic
Provedor de dados: 5
Autores: 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

Trophic food web and ecosystem attributes of the Eastern English Channel. A work package in the Eastern Channel Habitat Atlas for Marine Resource Management (CHARM II) Interreg IIIA project
Provedor de dados: 5
Autores: Villanueva, Ching Maria; Ernande, Bruno; Vaz, Sandrine; Delpech, Jean-paul; Carpentier, Andre.
Tipo: Text
Ano: 2006
URL: http://archimer.ifremer.fr/doc/00161/27210/25410.pdf

Rapport de campagne de nourriceries côtières. Campagne NOURMED 2019
Provedor de dados: 5
Autores: Vaz, Sandrine; Brind'Amour, Anik; Delaunay, Damien.
Dans le cadre de la mise en œuvre du programme de surveillance de la directive cadre stratégie pour le milieu marin (DCSMM), le suivi des poissons et céphalopodes démersaux des milieux meubles côtiers a été jugé prioritaire. Pour ce faire, une série de campagnes halieutiques récurrentes doit être déployée dans les nourriceries côtières, constituant des habitats essentiels pour de nombreuses espèces marines. La caractérisation de l’état écologique des peuplements et l’étude de la fonctionnalité des habitats de nourriceries s’avèrent nécessaires au calcul des indicateurs du Bon Etat Ecologique requis par la DCSMM et primordiales pour la mise en place de mesures de gestion écosystémique garantissant des usages durables. Sur la façade méditerranéenne, une...
Tipo: Text
Palavras-chave: Fonctionnement des nourriceries côtières; Suivi; Dynamique temporelle; Communautés bentho-démersales; DCSMM.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00676/78786/81015.pdf

Delineating recurrent fish spawning habitats in the North Sea
Provedor de dados: 5
Autores: 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

Activité et production des navires français – Façade "Manche est" et Façade "Loire-Gironde"
Provedor de dados: 5
Autores: 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

Modelled distributions of ten demersal elasmobranchs of the eastern English Channel in relation to the environment
Provedor de dados: 5
Autores: Martin, Corinne; Vaz, Sandrine; Ellis, J. R.; Lauria, Valentina; Coppin, Franck; Carpentier, Andre.
Generalised Linear Models, combined with a Geographic Information System, were used to map the habitats of ten demersal elasmobranch taxa (five skates, four sharks and a stingray) in the eastern English Channel, based on an annual fishery-independent bottom trawl survey conducted each October, and covering 21 years. Habitat models showing mean density levels were developed for the most frequently occurring species, whilst binomial occurrence habitat models were built for less frequent species. The main predictors of elasmobranch habitats in the eastern English Channel were depth, bed shear stress and salinity, followed by seabed sediment type and temperature. Habitat maps highlighted contrasting habitat utilisation across species. Raja clavata, and to a...
Tipo: Text
Palavras-chave: Channel Ground Fish Survey; Chondrichthyes; Elasmobranchii; GLM; Grande Ouverture Verticale; Trawl survey.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00086/19730/17478.pdf

Note sur les objectifs des campagnes scientifiques "Nourriceries" des zones côtières à substrat meuble
Provedor de dados: 5
Autores: Delaunay, Damien; Brind'Amour, Anik; Vaz, Sandrine; Baudrier, Jerome.
Les campagnes « Nourriceries » ont pour objectif de collecter des données concourant au suivi et à la compréhension du fonctionnement des nourriceries des milieux meubles côtiers en automne, ces habitats essentiels jouant un rôle déterminant dans le recrutement de juvéniles de nombreuses espèces halieutiques. La constitution d’un réseau de campagnes sur les 3 façades métropolitaines consolide les connaissances sur les milieux côtiers et permet l'évaluation du bon état écologique de cette composante de l'écosystème dans le cadre de la mise en oeuvre de la DCSMM.
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00499/61057/64505.pdf

Rapport de campagne de nourriceries côtières : Campagne NOURMED 2018
Provedor de dados: 5
Autores: Vaz, Sandrine; Brind'Amour, Anik; Delaunay, Damien; Baudrier, Jerome.
Dans le cadre de la mise en œuvre du programme de surveillance de la directive cadre stratégie pour le milieu marin (DCSMM), le suivi des poissons et céphalopodes démersaux des milieux meubles côtiers a été jugé prioritaire. Pour ce faire, une série de campagnes halieutiques récurrentes doit être déployée dans les nourriceries côtières, constituant des habitats essentiels pour de nombreuses espèces marines. La caractérisation de l’état écologique des peuplements et l’étude de la fonctionnalité des habitats de nourriceries s’avèrent nécessaires au calcul des indicateurs du Bon Etat Ecologique requis par la DCSMM et primordiales pour la mise en place de mesures de gestion écosystémique garantissant des usages durables. Sur la façade méditerranéenne, jusqu’à...
Tipo: Text
Palavras-chave: Fonctionnement des nourriceries côtières; Communautés bentho-démersales; DCSMM; Programme de surveillance.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00506/61742/65727.pdf

Inter-annual variability of North Sea plaice spawning habitat
Provedor de dados: 5
Autores: Loots, Christophe; Vaz, Sandrine; Koubbi, P.; Planque, Benjamin; Coppin, Franck; Verin, Yves.
Potential spawning habitat is defined as the area where environmental conditions are suitable for spawning to occur. Spawning adult data from the first quarter (January-March) of the International Bottom Trawl Survey have been used to study the inter-annual variability of the potential spawning habitat of North Sea plaice from 1980 to 2007. Generalised additive models (GAM) were used to create a model that related five environmental variables (depth, bottom temperature and salinity, seabed stress and sediment type) to presence-absence and abundance of spawning adults. Then, the habitat model was applied each year from 1970 to 2007 to predict inter-annual variability of the potential spawning habitat. Predicted responses obtained by GAM for each year were...
Tipo: Text
Palavras-chave: Potential Habitat; Generalised Additive Models; Spawning; Inter-annual Variability; North Sea plaice; Spatial Distribution.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00018/12900/9932.pdf

Understanding what controls the spatial distribution of fish populations using a multi-model approach
Provedor de dados: 5
Autores: Planque, Benjamin; Loots, Christophe; Petitgas, Pierre; Lindstrom, Ulf; Vaz, Sandrine.
Understanding and predicting the distribution of organisms in heterogeneous environments lies at the heart of ecology. The spatial distribution of fish populations observed in the wild results from the complex interactions of multiple controls both external or internal to the fish populations. Whilst species distribution models (SDMs) have been mostly concerned with static description of species distribution as a function of environmental constraints, models of animal movements (MAMs) have focussed on the dynamic nature of spatial distribution of groups of individuals under a number of constraints external and internal to the population. Besides SDMs and MAMs, modelling the spatial distribution of fish populations can be achieved by models that are...
Tipo: Text
Palavras-chave: Demographic structure; Density-dependent habitat selection; Environmental control; Fish spatial distribution models; Multi-model inference; Population memory; Spatial dependency.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00022/13309/10360.pdf

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
Provedor de dados: 5
Autores: 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, &lt; and &gt; 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

The effectiveness of the continuous underway fish egg sampler compared with standard vertical plankton hauls for sampling the eggs of demersal species in the southern North Sea
Provedor de dados: 5
Autores: Lelievre, Stephanie; Vaz, Sandrine; Fox, Christopher.
To date, the continuous underway fish egg sampler (CUFES) has been used primarily to map the spawning areas of pelagic fish in upwelling regions. To assess its utility in mapping the spawning grounds of demersal species, species composition and densities of eggs collected by CUFES were compared with results obtained from ring-net samples (VET: vertical egg trawl) from the southern North Sea over three annual cruises conducted in January/February. CUFES collected slightly fewer eggs per unit volume of water filtered when compared with vertically integrated samples but maps of egg distributions from both devices showed broadly similar patterns. Geostatistical analyses revealed that small-scale variability was greater with CUFES than with VET. CUFES may thus...
Tipo: Text
Palavras-chave: Continuous underway fish egg sampler; CUFES; Fish eggs; Generalized linear model; Spatial distribution; Vertical egg trawl.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00065/17663/15193.pdf

Recurrent winter observations of Mnemiopsis leidyi swarms in the Southern North Sea
Provedor de dados: 5
Autores: Antajan, Elvire; Loots, Christophe; Travers-trolet, Morgane; Vaz, Sandrine.
Tipo: Text
Palavras-chave: Ctenophore; Invasive species; Mnemiopsis leidyi; North Sea.
Ano: 2014
URL: https://archimer.ifremer.fr/doc/00259/37007/35506.pdf

Biocénoses des fonds durs du circalittoral. Sous-région marine Manche - Mer du Nord. Evaluation initiale DCSMM.
Provedor de dados: 5
Autores: Vérin, Yves; Vaz, Sandrine; Coppin, Franck.
Tipo: Text
Palavras-chave: Manche; Mer du Nord; Circalittoral; Fonds durs; Biocénoses; Espèces; Habitats.
Ano: 2012
URL: https://archimer.ifremer.fr/doc/00327/43841/43415.pdf

Modèles d’habitats pour une Approche Ecosystémique des Pêches
Provedor de dados: 5
Autores: Vaz, Sandrine.
Les populations marines ne sont pas réparties de manière aléatoire mais montrent des distributions qui sont organisées dans l’espace et dans le temps. La distribution d’une espèce résulte de l’action combinée de plusieurs contraintes et constitue sa niche écologique. La projection géographique de cette niche correspond à l’habitat de l’espèce considérée et l’analyse des relations entre les espèces et leurs habitats a toujours constitué une question centrale en écologie. Généralement, la première étape pour obtenir des cartes d’habitat consiste à choisir une des nombreuses méthodes statistiques existantes pour construire des modèles de distribution robustes liant des descripteurs pertinents des conditions rencontrées et la réponse des organismes étudiés.  À...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00324/43524/43056.pdf

Defining a pelagic typology of the eastern English Channel
Provedor de dados: 5
Autores: 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

What controls the spatial distribution of the North Sea plaice spawning population? Confronting ecological hypotheses through a model selection framework
Provedor de dados: 5
Autores: Loots, Christophe; Vaz, Sandrine; Planque, Benjamin; Koubbi, Philippe.
The spatial dynamics of spawning fish are crucial because they influence the survival rates of eggs and larvae and ultimately impact the reproductive success of populations. The factors that control these dynamics are complex and potentially many, and they interact. A model-selection-based approach was developed to confront various hypotheses of control of the spatial distribution of spawning population of North Sea plaice (Pleuronectes platessa). For each hypothesis or combination thereof, statistical models were constructed. These were then ranked and selected based on their ability to adjust and predict observed spatial distributions. The North Sea plaice population seems to have developed strong attachment to specific spawning sites, where geographic...
Tipo: Text
Palavras-chave: AIC; Multi model inference; North Sea plaice; Spatial distribution; Spawning population.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00000/11157/9933.pdf

Modelling Fish Habitat Suitability in the Eastern English Channel. Application to community habitat level
Provedor de dados: 5
Autores: Vaz, Sandrine; Carpentier, Andre; Loots, Christophe; Koubbi, Philippe.
Valuable marine habitats and living resources can be found in the Eastern English Channel and in 2003, a Franco-British Interreg IIIA project, ‘Eastern Channel Habitat Atlas for Marine Resource Management’ (CHARM), was initiated to support decision-making for management of essential fish habitats. Fish habitat corresponds to geographic areas within which ranges of environmental factors define the presence of a particular species. Habitat Suitability index (HSI) modelling was used to relate fish geographic distribution and their relation towards environmental factors and to delineate their optimum habitat. This study was based on data obtained from 1988-2003 IFREMER’s Channel Ground Fish Surveys, including both species abundance and environmental data....
Tipo: Text
Ano: 2004
URL: http://archimer.ifremer.fr/doc/00066/17765/15281.pdf

Populations ichtyologiques démersales du plateau continental. Sous-région marine Manche - Mer du Nord. Evaluation initiale DCSMM.
Provedor de dados: 5
Autores: Vérin, Yves; Vaz, Sandrine; Coppin, Franck; Delpech, Jean-paul; Mahé, Kelig; Petitgas, Pierre; Bez, Nicolas.
Tipo: Text
Palavras-chave: Manche; Mer du Nord; Poissons démersaux; Plateau continental; Espèces sensibles.
Ano: 2012
URL: https://archimer.ifremer.fr/doc/00327/43842/43416.pdf

Harmonisation des suivis de la mégafaune invertébrée benthique sur les campagnes halieutiques de l'Ifremer
Provedor de dados: 5
Autores: 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

Eastern English Channel fish assemblages: measuring the structuring effect of habitats on distinct sub-communities
Provedor de dados: 5
Autores: 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

Etude du risque d’effet des espèces halieutiques à l’éolien flottant dans le Golfe du Lion: rapport technique et méthodologique
Provedor de dados: 5
Autores: De Rock, Pauline; Hattab, Tarek; Vaz, Sandrine.
Dans le cadre du sixième appel d'offres (AO6) pour l'éolien en mer en France, Ifremer réalise l’étude pour identifier les zones de moindre contrainte pour les espèces halieutiques (poissons, mollusques, crustacés, invertébrés benthiques sensibles) dans le Golfe du Lion à la demande de la Direction Générale de l'Energie et du Climat (Ministère de la Transition Ecologique et Solidaire). La méthodologie pour calculer le risque d’effet a été adaptée à partir de la méthode proposée pour l’étude des compartiments granulats et avifaune au sud de la Bretagne afin de maintenir une similitude de concepts et de terminologies entre les différents appels d’offres. Les données des campagnes scientifiques MEDITS et PELMED ont été utilisées dans un premier temps pour...
Tipo: Text
Palavras-chave: Energies marines renouvelables; Eolien en mer; Eolien flottant; Golfe du Lion; Mer Méditerranée; Espèces halieutiques; Ichtyofaune; Mollusque; Crustacé; Invertébré benthique; Risque d’effet; Incertitude.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00683/79482/82074.pdf

Understanding what controls the spawning distribution of North Sea whiting (Merlangius merlangus) using a multi-model approach
Provedor de dados: 5
Autores: Loots, Christophe; Vaz, Sandrine; Planque, Benjamin; Koubbi, Philippe.
The processes that control the spatial distribution of North Sea whiting (Merlangius merlangus) spawning adults are investigated using a statistical multi-model approach. Models of external and internal controls on the population, such as environmental conditions, spatial constraints, present or past spatial distribution, and demographic state of the population, are evaluated, compared and ranked to select those that are the best able to predict the observed distribution of spawning adults. Model selection is greatly influenced by the selection method, either based on data fitting or prediction, as well as by the threshold value used to stop the selection. Model selection based on prediction tends to select simpler models than selection based on data...
Tipo: Text
Palavras-chave: Akaike information criterion; Hypotheses inference; Model selection; North Sea; Spawning distribution; Whiting.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00022/13313/11361.pdf

Towards a marine strategy for the deep Mediterranean Sea: Analysis of current ecological status
Provedor de dados: 5
Autores: Danovaro, R.; Fanelli, E.; Canals, M.; Ciuffardi, T.; Fabri, Marie-claire; Taviani, M.; Argyrou, M.; Azzurro, E.; Bianchelli, S.; Cantafaro, A.; Carugati, L.; Corinaldesi, C.; De Haan, W.p.; Dell’anno, A.; Evans, J.; Foglini, F.; Galil, B.; Gianni, M.; Goren, M.; Greco, S.; Grimalt, J.; Güell-bujons, Q.; Jadaud, Angelique; Knittweis, L.; Lopez, J.l.; Sanchez-vidal, A.; Schembri, P.j.; Snelgrove, P.; Vaz, Sandrine; Angeletti, L.; Barsanti, M.; Borg, J.a.; Bosso, M.; Brind'Amour, Anik; Castellan, G.; Conte, F.; Delbono, I.; Galgani, Francois; Morgana, G.; Prato, S.; Schirone, A.; Soldevila, E.
The Marine Strategy Framework Directive (MSFD), introduced in June 2008, was adopted to achieve a Good Environmental Status (GES) in the EU's marine waters and to protect resources of socio-economic interest. The MSFD exerts to the marine area over which a Member State exercises jurisdictional rights in accordance with the United Nations Convention on the Law of the Sea (UNCLOS), including the deep-sea waters, seafloor and sub-seafloor of the Exclusive Economic Zones (EEZ). However, currently the MSFD focuses on coastal habitats and the shallow-water seafloor to the detriment of the deeper habitats. Despite the huge dimension of the deep sea (below 200 m of depth) covering more than 65% of the Earth's surface and including &gt;95% of the global biosphere,...
Tipo: Text
Palavras-chave: Marine strategy framework directive; Deep-sea ecosystems; Mediterranean basin.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00609/72110/73206.pdf

Spawning distribution of North Sea plaice and whiting from 1980 to 2007
Provedor de dados: 5
Autores: Loots, Christophe; Vaz, Sandrine; Planque, Benjamin; Koubbi, Philippe.
The spatial distributions of spawning population of North Sea plaice and whiting were studied using geostatistical analyses. Variograms were computed each year since 1980 on abundance data of spawning adults using the first quarter data from the International Bottom Trawl Survey. Maps of spatial distribution of spawning adults were produced using kriging interpolation. For both species, distributions of spawning adults were in agreement with historical spawning grounds previously described from location of their eggs. This showed that spawning adults distribution may be used to infer the distribution of both plaice during its spawning peak and whiting at the beginning of its spawning period. Both species were strongly spatially structured with abundances...
Tipo: Text
Palavras-chave: Spatial distribution; Plaice; Whiting; North Sea; Inter-annual variability; Spawning adults.
Ano: 2010
URL: https://archimer.ifremer.fr/doc/00022/13317/11191.pdf

PCR-RFLP analyses of formalin-fixed fish eggs for the mapping of spawning areas in the Eastern Channel and Southern North Sea
Provedor de dados: 5
Autores: Lelievre, Stephanie; Verrez-bagnis, Veronique; Jerome, Marc; Vaz, Sandrine.
A better knowledge on spawning grounds of principal commercial fishes from North Sea is necessary for their monitoring. Fish egg taxonomic identification based on morphological characters cannot always be carried out effectively. This is particularly the case for a number of Gadidae fish species eggs (i.e. cod, haddock and whiting, and three rockling species) which have the same range of size and for which molecular-based techniques can help improving the accuracy of egg taxonomic identification, and hence the reliability of studies on spawning areas. In this study, formalin fixation, egg conservation and DNA extraction were optimized in order to develop a specific PCR-RFLP method. Based on the sequence of the cytochrome b gene of reference specimens, a...
Tipo: Text
Palavras-chave: Fish eggs; PCR-RFLP; Cytochrome b gene; Geostatistical analyses; Interpolated map.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00005/11613/8259.pdf

Evaluating conservation and fisheries management strategies by linking spatial prioritization software and ecosystem and fisheries modelling tools
Provedor de dados: 5
Autores: 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

Exploring habitat credits to manage the benthic impact in a mixed fishery
Provedor de dados: 5
Autores: 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

Integrating molecular identification of pelagic eggs with geostatistical mapping to improve the delineation of North Sea fish spawning grounds
Provedor de dados: 5
Autores: 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

Le rouget barbet de roche Mullus surmuletus (L. 1758) en Manche orientale et mer du Nord.
Provedor de dados: 5
Autores: Mahe, Kelig; Destombe, A.; Coppin, Franck; Koubbi, P.; Vaz, Sandrine; Le Roy, Didier; Carpentier, Audrey.
General introduction: The red mullet is among the fish that are the most popular and that have been known of for the longest amount of time. The Greeks and the Romans have left us in their literature famous pages in which they praise the quality and beautiful colours of their gurnards and their mulles. Also, the skin of this fish has been very popular since earliest antiquity:   It is said that for the Romans, a beautiful fish was worth more than the man who had caught it! Moreover, at feasts, a red mullet was displayed in a vase to amuse the guests with the changes of colour (Bloch, 1793).  The red rock mullet (Mullus surmuletus) is a benthic fish, which means it lives near the sea bottom. It is geographically present in the Atlantic Ocean from the coasts...
Tipo: Text
Palavras-chave: Sig; North sea; English channel; Population dynamic  data; Habitat; Spatial repartition; Biology; Mullus surmuletus.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/rapport-2351.pdf

Populations ichtyologiques de petits pélagiques. Sous-région marine Manche - Mer du Nord. Evaluation initiale DCSMM.
Provedor de dados: 5
Autores: Vérin, Yves; Vaz, Sandrine; Coppin, Franck; Delpech, Jean-paul; Mahé, Kelig; Petitgas, Pierre; Bez, Nicolas.
Tipo: Text
Palavras-chave: Manche; Mer du Nord; Petits pélagiques; Espèces; Biocénose; Etat des stocks.
Ano: 2012
URL: https://archimer.ifremer.fr/doc/00327/43843/43417.pdf

Systematic conservation planning in the eastern English Channel: comparing the Marxan and Zonation decision-support tools
Provedor de dados: 5
Autores: Delavenne, Juliette; Metcalfe, Kristian; Smith, Robert J.; Vaz, Sandrine; Martin, Corinne S.; Dupuis, Ludovic; Coppin, Franck; Carpentier, Andre.
The systematic conservation approach is now commonly used for the design of efficient marine protected area (MPA) networks. Identifying these priority areas often involves using specific conservation-planning software. Several of these software programmes have been developed in recent years, each of which differs in the underlying algorithms used. Here, we investigate whether the choice of software influences the location of priority areas by comparing outputs from Marxan and Zonation, two widely used conservation-planning, decision-support tools. Using biological and socio-economic data from the eastern English Channel, we compared their outputs and showed that the two software packages identified similar sets of priority areas, even though the relatively...
Tipo: Text
Palavras-chave: Eastern English Channel; Marine conservation planning; Marxan; Spatial conservation prioritization; Zonation.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00054/16518/14088.pdf

Review of literature on the implementation of the MSFD to the deep Mediterranean Sea
Provedor de dados: 5
Autores: Fabri, Marie-claire; Brind'Amour, Anik; Jadaud, Angelique; Galgani, Francois; Vaz, Sandrine; Taviani, Marco; Scarcella, Giuseppe; Canals, Miquel; Sanchez, Anna; Grimalt, Joan; Galil, Bella; Goren, Menachem; Schembri, Patrick; Evans, Julian; Knittweis, Leyla; Cantafaro, Anna-lucia; Fanelli, Emanuela; Carugati, Laura; Danovaro, Roberto.
Summary based on the state-of-the-art for the deep Mediterranean Sea with the final aim of identifying knowledge and gaps, descriptor by descriptor (such as lack of data, indicators, thresholds). This document is an analysis of all scientific publications, national and international reports and grey literature available on the implementation of the MSFD to the deep Mediterranean Sea.
Tipo: Text
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00426/53809/57345.pdf

Impacts of data quality on the setting of conservation planning targets using the species-area relationship
Provedor de dados: 5
Autores: 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

PROJET GALION. Gestion alternative de la pêcherie chalutière du Golfe du Lion
Provedor de dados: 5
Autores: Wendling, Bertrand; Marchand, Morgane; Cuvilliers, Perrine; Cornella, Delphine; Vaz, Sandrine; Genu, Mathieu; Medieu, Anais; Guillerme, Chloe; Llapasset, Margaud; Holley, Jean-franois; Soulat, Nelly; Sacchi, Jacques; Scourzic, Thomas; Lesage, Claire-marine; Baranger, Laurent.
Améliorer la gestion des ressources marines est donc un impératif au maintien des entreprises de pêche, c’est pourquoi les pêcheurs chalutiers du golfe du Lion ont lancé l’initiative du projet GALION pour permettre de définir de nouveaux modes de gestion pour cette pêcherie. Le projet intègre plusieurs phases de collecte de données en mer dans le cadre d’un partenariat entre scientifiques, pêcheurs et économistes. Plusieurs actions sont menées au cours des trois années du projet : 1. Cartographier la distribution des captures et rejets. 2. Définir des habitats sensibles ou à risque. 3. Analyser la sélectivité des engins de pêche et leur impact économique. 4. Proposer des stratégies de pêche limitant les rejets. Ainsi le projet GALION vise à fournir aux...
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00609/72088/70808.pdf

An experimental comparison of three Towed Underwater Video Systems using species metrics, benthic impact and performance
Provedor de dados: 5
Autores: 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

Process-driven and biological characterisation and mapping of seabed habitats sensitive to trawling
Provedor de dados: 5
Autores: Foveau, Aurelie; Vaz, Sandrine; Desroy, Nicolas; Kostylev, Vladimir E.
The increase of anthropogenic pressures on the marine environment together with the necessity of a sustainable management of marine living resources have underlined the need to map and model coastal environments, particularly for the purposes of spatial planning and for the implementation of integrated ecosystem-based management approach. The present study compares outputs of a process-driven benthic habitat sensitivity (PDS) model to the structure, composition and distribution of benthic invertebrates in the Eastern English Channel and southern part of the North Sea. Trawl disturbance indicators (TDI) computed from species biological traits and benthic community composition were produced from samples collected with a bottom trawl. The TDI was found to be...
Tipo: Text
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00405/51615/52164.pdf