Consulta: creatorFacets:"Desroy, Nicolas"
Registros recuperados: 92
Data/hora: 06/06/2024 17:39:44

Distribution, associated species and extent of biofouling “reefs” formed by the alien species Ficopomatus enigmaticus (Annelida, Polychaeta) in marinas
Provedor de dados: 5
Autores: Charles, M.; Faillettaz, Robin; Desroy, Nicolas; Fournier, Jerome; Costil, Katherine.
Artificial structures in ports are commonly colonized by non-indigenous epifauna that tolerate high pollution levels. Bioconstructions built by alien species may offer sheltered microhabitats for motile (vagile) animals but biofouling often becomes detrimental to human activities. In this context, the present study provides an inventory of 1) the extent of biofouling related to the alien Polychaeta Ficopomatus enigmaticus on hard structures of marinas in Normandy, France, and 2) the biodiversity of sessile (attached) or vagile (motile) fauna associated with these “reefs”, including both native and alien species. Reefs built by F. enigmaticus were found in 6 out of 12 marinas with oligohaline-mesohaline waters. Significant differences in the total volume of...
Tipo: Text
Palavras-chave: Biofouling; Ficopomatus enigmaticus; Benthic communities; Alien species; Marinas; Normandy (France).
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00449/56052/57572.pdf

Regional and latitudinal patterns of soft-bottom macrobenthic invertebrates along French coasts: Results from the RESOMAR database
Provedor de dados: 5
Autores: Gallon, Regis K.; Lavesque, Nicolas; Grall, Jacques; Labrune, Celine; Gremare, Antoine; Bachelet, Guy; Blanchet, Hugues; Bonifacio, Paulo; Bouchet, Vincent M. P.; Dauvin, Jean-claude; Desroy, Nicolas; Gentil, Franck; Guerin, Laurent; Houbin, Celine; Jourde, Jerome; Laurand, Sandrine; Le Duff, Michel; Le Garrec, Vincent; De Montaudouin, Xavier; Olivier, Frederic; Orvain, Francis; Sauriau, Pierre-guy; Thiebaut, Eric; Gauthier, Olivier.
This study aims to describe the patterns of soft bottom macrozoobenthic richness along French coasts. It is based on a collaborative database developed by the “Réseau des Stations et Observatoires Marins” (RESOMAR). We investigated patterns of species richness in sublittoral soft bottom habitats (EUNIS level 3) at two different spatial scales: 1) seaboards: English Channel, Bay of Biscay and Mediterranean Sea and 2) 0.5° latitudinal and longitudinal grid. Total observed richness, rarefaction curves and three incidence-based richness estimators (Chao2, ICE and Jacknife1) were used to compare soft bottom habitats species richness in each seaboard. Overall, the Mediterranean Sea has the highest richness and despite higher sampling effort, the English Channel...
Tipo: Text
Palavras-chave: Zoobenthos; Species richness; Regional pattern; Latitudinal pattern; Soft-bottom; France.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00376/48769/49166.pdf

Etat écologique du Bassin maritime de la Rance au terme de 30 ans de fonctionnement de l'usine marémotrice
Provedor de dados: 5
Autores: Retière, Ch.; Bonnot-courtois, C.; Le Mao, Patrick; Desroy, Nicolas.
Tipo: Text
Ano: 1997
URL: https://archimer.ifremer.fr/doc/00480/59134/61762.pdf

Atlas de la faune marine invertébrée du golfe Normano-Breton. Volume 6. Espèces d'intérêt particulier
Provedor de dados: 5
Autores: Le Mao, Patrick; Godet, Laurent; Fournier, Jérôme; Desroy, Nicolas; Gentil, Franck; Thiébault, Eric; Pourinet, Laurent.
Le golfe Normano-Breton est bordé au sud par les côtes rocheuses bretonnes indentées des deux grandes baies de Saint-Brieuc et du Mont-Saint-Michel et, à l’est, par les côtes normandes, essentiellement sableuses et ponctuées d’une succession de havres entre les falaises de Carolles et le cap de la Hague. Abritant les îles Anglo-Normandes, ce golfe se caractérise par des petits fonds généralement inférieurs à 50 mètres de profondeur, un régime de marée macro à mégatidal, de forts courants et la présence de structures tourbillonnaires qui l’isolent en partie du reste de la Manche occidentale. La mosaïque de ses fonds – composés pour l’essentiel de sédiments grossiers – et de ses habitats benthiques, combinée à une riche histoire naturaliste, en font un...
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00612/72374/71333.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

Multiscale patterns in the diversity and organization of benthic intertidal fauna among French Atlantic estuaries
Provedor de dados: 5
Autores: Blanchet, Hugues; Gouillieux, Benoit; Alizier, Sandrine; Amouroux, Jean-michel; Bachelet, Guy; Barille, Anne-laure; Dauvin, Jean-claude; De Montaudouin, Xavier; Derolez, Valerie; Desroy, Nicolas; Grall, Jacques; Gremare, Antoine; Hacquebart, Pascal; Jourde, Jerome; Labrune, Celine; Lavesque, Nicolas; Meirland, Alain; Nebout, Thiebaut; Olivier, Frederic; Pelaprat, Corine; Ruellet, Thierry; Sauriau, Pierre-guy; Thorin, Sebastien.
Based on a parallel sampling conducted during autumn 2008, a comparative study of the intertidal benthic macrofauna among 10 estuarine systems located along the Channel and Atlantic coasts of France was performed in order to assess the level of fauna similarity among these sites and to identify possible environmental factors involved in the observed pattern at both large (among sites) and smaller (benthic assemblages) scales. More precisely this study focused on unraveling the observed pattern of intertidal benthic fauna composition and diversity observed at among-sites scale by exploring both biotic and abiotic factors acting at the among- and within-site scales. Results showed limited level of similarity at the among-site level in terms of intertidal...
Tipo: Text
Palavras-chave: Estuaries; Macrozoobenthos; Diversity; Structuring Factors; WFD.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00179/29016/27444.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) : Volume II : Flore autre que phytoplancton, Année 2014. District Seine-Normandie
Provedor de dados: 5
Autores: Goyot, Ludovic; Garcia, Aurélie; Desroy, Nicolas; Le Mao, Patrick.
This reports presents the results of the monitoring actions carried out in 2014 (on flora other than phytoplankton) in the water bodies of the Seine-Normandie water district.
Tipo: Text
Palavras-chave: Directive Cadre Eau; Benthos; Réseau de surveillance; Manche; European Water Framework Directive; Benthos; Monitoring Network; English Channel.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00301/41255/40510.pdf

Musical Chairs on Temperate Reefs: Species Turnover and Replacement Within Functional Groups Explain Regional Diversity Variation in Assemblages Associated With Honeycomb Worms
Provedor de dados: 5
Autores: Muller, Alexandre; Poitrimol, Camille; Nunes, Flavia; Boye, Aurelien; Curd, Amelia; Desroy, Nicolas; Firth, Louise B; Bush, Laura; Davies, Andrew J; Lima, Fernando P; Marzloff, Martin; Meneghesso, Claudia; Seabra, Rui; Dubois, Stanislas.
Reef-building species are recognized as having an important ecological role and as generally enhancing the diversity of benthic organisms in marine habitats. However, although these ecosystem engineers have a facilitating role for some species, they may exclude or compete with others. The honeycomb worm Sabellaria alveolata (Linnaeus, 1767) is an important foundation species, commonly found from northwest Ireland to northern Mauritania, whose reef structures increase the physical complexity of the marine benthos, supporting high levels of biodiversity. Local patterns and regional differences in taxonomic and functional diversity were examined in honeycomb worm reefs from 10 sites along the northeastern Atlantic to explore variation in diversity across...
Tipo: Text
Palavras-chave: Biodiversity; Taxonomic diversity; Functional diversity; Ecosystem engineer; Reef; Turnover.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00693/80506/83709.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) : Volume I : MacroInvertébrés benthiques de substrats meubles, Année 2016. District Seine-Normandie.
Provedor de dados: 5
Autores: Foveau, Aurelie; Desroy, Nicolas; Le Mao, Patrick.
This report presents results of the monitoring actions in 2016 (on benthic invertebrates communities) in the water bodies of the Seine-Normandie water district.
Tipo: Text
Palavras-chave: Directive Cadre Eau; Benthos; Réseau de surveillance; Manche; European Water Framework Directive; Benthos; Monitoring Network; English Channel.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00472/58374/60938.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) : état des lieux et propositions. District Seine-Normandie
Provedor de dados: 5
Autores: Guerin, Laurent; Le Mao, Patrick; Desroy, Nicolas.
Tipo: Text
Palavras-chave: DCE; Benthos; Réseau de surveillance; Manche.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/00354/46510/46272.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) : Année 2008 - District Artois-Picardie
Provedor de dados: 5
Autores: Nebout, Thibaut; Desroy, Nicolas; Le Mao, Patrick.
This report deals with results of monitoring carried out in 2008 (monitoring control for benthic compartment : benthic invertebrates and macroalgae) for the area concerned by the Artois-Picardie water district.
Tipo: Text
Palavras-chave: Directive Cadre Eau; Benthos; Réseau de surveillance; Manche; European Water Framework Directive; Benthos; Monitoring Network; English Channel.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00241/35274/33792.pdf

Avis de l'Ifremer sur les impacts environnementaux et zoosanitaires d'un élevage de truites dans le Jaudy
Provedor de dados: 5
Autores: Cheve, Julien; Laugier, Thierry; Roque D'Orbcastel, Emmanuelle; Desroy, Nicolas.
Tipo: Text
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00681/79318/81826.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) : Volume I : MacroInvertébrés benthiques de substrats meubles, plan de gestion 2010-2015. District Seine-Normandie.
Provedor de dados: 5
Autores: Garcia, Aurélie; Masse, Cécile; Desroy, Nicolas; Le Mao, Patrick.
This report presents results of the monitoring actions during the first management plan 2010-2015 (on benthic invertebrates communities) in the water bodies of the Seine-Normandie water district.
Tipo: Text
Palavras-chave: Mots-clés Directive Cadre Eau; Benthos; Réseau de surveillance; Manche; European Water Framework Directive; Benthos; Monitoring Network; English Channel.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00472/58376/60941.pdf

Valorisation des données issues du contrôle de surveillance du compartiment benthique suivi dans le cadre de la Directive Cadre sur l'Eau (2000/60/CE) : campagnes 2007 et 2010 – Élément de qualité biologique « invertébrés benthiques de substrats meubles » – Masses d'eau côtières - Façades Manche et Atlantique
Provedor de dados: 5
Autores: Garcia, Aurelie; Brun, Melanie; Soudant, Dominique; Pothier, Anaelle; Gauthier, Emilie; Desroy, Nicolas.
This report deals with the ecological status assessment of the English Channel and the Atlantic coastal water bodies, with respect to the benthic invertebrate biological quality element and defined from samples collected in 2007 and 2010.
Tipo: Text
Palavras-chave: Directive Cadre sur l'Eau; Benthos; Réseau de surveillance; Manche; Océan Atlantique; Zones côtières.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00273/38404/36729.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

Synthèse sur l’impact de l’extraction de granulats marin en France métropolitaine. Analyse des suivis environnementaux sur les façades Atlantique, Manche-Est et Manche-Ouest
Provedor de dados: 5
Autores: Robert, Alexandre; Desroy, Nicolas; Vogel, Camille; Simplet, Laure.
Tipo: Text
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00422/53302/54133.pdf

Optimizing image-based protocol to monitor macroepibenthic communities colonizing artificial structures
Provedor de dados: 5
Autores: Taormina, Bastien; Marzloff, Martin; Desroy, Nicolas; Caisey, Xavier; Dugornay, Olivier; Metral Thiesse, Emmanuelle; Tancray, Aurelien; Carlier, Antoine.
Underwater imagery is increasingly used as an effective and repeatable method to monitor benthic ecosystems. Nevertheless, extracting ecologically relevant information from a large amount of raw images remains a time-consuming and somewhat laborious challenge. Thus, underwater imagery processing needs to strike a compromise between time-efficient image annotation and accuracy in quantifying benthic community composition. Designing and implementing robust image sampling and image annotation protocols are therefore critical to rationally address these trade-offs between ecological accuracy and processing time. The aim of this study was to develop and to optimize a reliable image scoring strategy based on the point count method using imagery data acquired on...
Tipo: Text
Palavras-chave: Benthic monitoring; Fouling community; Sampling design; Taxonomic resolution; Underwater imagery.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00599/71160/69550.pdf

Atlas de la faune marine invertébrée du golfe Normano-Breton. Volume 5. Autres espèces
Provedor de dados: 5
Autores: Le Mao, Patrick; Godet, Laurent; Fournier, Jérôme; Desroy, Nicolas; Gentil, Franck; Thiébault, Eric; Pourinet, Laurent.
Le golfe Normano-Breton est bordé au sud par les côtes rocheuses bretonnes indentées des deux grandes baies de Saint-Brieuc et du Mont-Saint-Michel et, à l’est, par les côtes normandes, essentiellement sableuses et ponctuées d’une succession de havres entre les falaises de Carolles et le cap de la Hague. Abritant les îles Anglo-Normandes, ce golfe se caractérise par des petits fonds généralement inférieurs à 50 mètres de profondeur, un régime de marée macro à mégatidal, de forts courants et la présence de structures tourbillonnaires qui l’isolent en partie du reste de la Manche occidentale. La mosaïque de ses fonds – composés pour l’essentiel de sédiments grossiers – et de ses habitats benthiques, combinée à une riche histoire naturaliste, en font un...
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00612/72373/71332.pdf

Les communautés benthiques de substrats meubles de la Manche et de la baie sud de la mer du Nord : description, fonctionnement et état écologique
Provedor de dados: 5
Autores: Desroy, Nicolas.
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00161/27269/25485.pdf

The intra-annual variability of soft-bottom macrobenthos abundance patterns in the North Channel of the Seine estuary
Provedor de dados: 5
Autores: Desroy, Nicolas; Janson, Anne-laure; Denis, Lionel; Charrier, Gregory; Lesourd, Sandric; Dauvin, Jean-claude.
Temporal and spatial variability of the Abra alba–Pectinaria koreni and Macoma balthica communities was examined in the northern part of the Seine estuary (North Channel) over different space and time scales in order to assess the role that the hydrologic regime and/or anthropogenic influences play in defining benthic communities over time. Sediment in the North Channel displayed strong spatial and temporal variability, sustained by intense sediment transport episodes. Total macrobenthic abundances ranged widely on the course of the year and there was no evidence of a seasonal signal for the density fluctuations, whatever the spatial scale considered. The bio-sedimentary dynamics can be divided into two periods: the first corresponds to the high flow rate...
Tipo: Text
Palavras-chave: Port 2000; Anthropogenic impacts; Abra alba community; Sediment; Bentho pelagic coupling; Temporal variability.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-2613.pdf

Suivi de l’état de conservation des récifs d’hermelles (Sabellaria alveolata). Rapport Final
Provedor de dados: 5
Autores: Rollet, Claire; Matherion, Delphine; Desroy, Nicolas; Le Mao, Patrick.
Ce document constitue le rapport final établi dans le cadre de la convention de partenariat établie avec l'Agence de aires marines protégées  – Mission d'étude du golfe normand-breton relative à la conduite d'un suivi scientifique de l’état de conservation des récifs d’hermelles (Sabellaria alveolata) prévu dans le cadre du "projet Life 12 ENV/FR/316 – Expérimentation pour une gestion durable et concertée de la pêche à pied de loisir – LIFE+ Pêche à pied de loisir".  Ce rapport présente :  · le protocole de suivi de terrain des récifs d’hermelles incluant les procédures de travail et stratégie d'échantillonnage de terrain (fiches protocoles - détaillée et condensée - et fiches de saisie de données), les paramètres de suivi des récifs d’hermelles, les...
Tipo: Text
Palavras-chave: Hermelles; Baie du Mont-Saint-Michel; Suivi état de conservation; Indice d’état de santé; LIFE+ Pêche à pied de loisir.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00366/47711/47752.pdf

Changes in North Sea macrofauna communities and species distribution between 1986 and 2000
Provedor de dados: 5
Autores: Kroencke, Ingrid; Reiss, Henning; Eggleton, Jacqueline D.; Aldridge, John; Bergman, Magda J. N.; Cochrane, Sabine; Craeymeersch, Johan A.; Degraer, Steven; Desroy, Nicolas; Dewarumez, Jean-marie; Duineveld, Gerard C. A.; Essink, Karel; Hillewaert, Hans; Lavaleye, Marc S. S.; Moll, Andreas; Nehring, Stefan; Newell, Richard; Oug, Eivind; Pohlmann, Thomas; Rachor, Eike; Robertson, Mike; Rumohr, Heye; Schratzberger, Michaela; Smith, Rebecca; Berghe, Edward Vanden; Van Dalfsen, Jan; Van Hoey, Gert; Vincx, Magda; Willems, Wouter; Rees, Hubert L.
The North Sea Benthos Project 2000 was initiated as a follow-up to the 1986 ICES North Sea Benthos Survey with the major aim to identify changes in the macrofauna species distribution and community structure in the North Sea and their likely causes. The results showed that the large-scale spatial distribution of macrofauna communities in the North Sea hardly changed between 1986 and 2000, with the main divisions at the 50 m and 100 m depth contours. Water temperature and salinity as well as wave exposure, tidal stress and primary production were influential environmental factors on a large (North Sea-wide) spatial scale. The increase in abundance and regional changes in distribution of various species with a southern distribution in the North Sea in 2000...
Tipo: Text
Palavras-chave: Long-term variability; Distribution shift; NAOI; Regime shift; Non-native species; Benthic communities.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00043/15428/12888.pdf

Biogenic reefs affect multiple components of intertidal soft-bottom benthic assemblages: The Lanice conchilega case study
Provedor de dados: 5
Autores: De Smet, Bart; D'Hondt, An-sofie; Verhelst, Pieterjan; Fournier, Jerome; Godet, Laurent; Desroy, Nicolas; Rabaut, Marijn; Vincx, Magda; Vanaverbeke, Jan.
Biogenic reefs composed of the tube-building polychaete Lanice conchilega are important from a conservation point of view because they noticeably increase the biodiversity in otherwise species poor environments. However, up to now, little or no attention has been paid to the intertidal epi- and hyperbenthic communities associated with the reefs. Therefore, this is the first study which focuses on the effect of L. conchilega reefs on the entire bentho-pelagic community at two different locations. Environmental variables were measured and macro-, epi- and hyperbenthic communities were sampled within a L. conchilega reef and a control area at two locations in France: the bay of the Mont Saint-Michel (BMSM) and Boulogne-sur-Mer (Boulogne). The effect of the...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00226/33764/32190.pdf

Interregional comparison of benthic ecosystem functioning: Community bioturbation potential in four regions along the NE Atlantic shelf
Provedor de dados: 5
Autores: Gogina, Mayya; Zettler, Michael L.; Vanaverbeke, Jan; Dannheim, Jennifer; Van Hoey, Gert; Desroy, Nicolas; Wrede, Alexa; Reiss, Henning; Degraer, Steven; Van Lancker, Vera; Foveau, Aurelie; Braeckman, Ulrike; Fiorentino, Dario; Holstein, Jan; Birchenough, Silvana N.r.
Bioturbation is one of the key mediators of biogeochemical processes in benthic habitats that can have a high contribution to seafloor functioning and benthic pelagic coupling in coastal waters. Previous studies on bioturbation were limited to point locations and extrapolations in single regions, but have not accounted for regional differences under changing environmental conditions, though there are indications that species contributions will differ across regions or with biotic and abiotic context. To capture those differences and assess global patterns and commonalities, multi-regional analyses are imperative. Here for the first time, bioturbation potential (BPc), a functional indicator of benthic community bioturbation, was estimated based on...
Tipo: Text
Palavras-chave: Macrofauna traits; Bioturbation index; Biogeographic comparison; Species distribution modelling; Biodiversity attributes; Ecosystem management.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00593/70489/68655.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) : état des lieux et propositions. District Artois-Picardie
Provedor de dados: 5
Autores: Guerin, Laurent; Le Mao, Patrick; Desroy, Nicolas.
Tipo: Text
Palavras-chave: DCE; Benthos; Réseau de surveillance; Manche.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/00354/46509/46271.pdf

Pôle Benthos - Bilan de 5 ans de fonctionnement (2006-2010)
Provedor de dados: 5
Autores: Le Mao, Patrick; Desroy, Nicolas; Rollet, Claire; Le Bec, Claude.
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00102/21287/18896.pdf

A review of potential impacts of submarine power cables on the marine environment: Knowledge gaps, recommendations and future directions
Provedor de dados: 5
Autores: Taormina, Bastien; Bald, Juan; Want, Andrew; Thouzeau, Gerard; Lejart, Morgane; Desroy, Nicolas; Carlier, Antoine.
Submarine power cables (SPC) have been in use since the mid-19th century, but environmental concerns about them are much more recent. With the development of marine renewable energy technologies, it is vital to understand their potential impacts. The commissioning of SPC may temporarily or permanently impact the marine environment through habitat damage or loss, noise, chemical pollution, heat and electromagnetic field emissions, risk of entanglement, introduction of artificial substrates, and the creation of reserve effects. While growing numbers of scientific publications focus on impacts of the marine energy harnessing devices, data on impacts of associated power connections such as SPC are scarce and knowledge gaps persist. The present study (1)...
Tipo: Text
Palavras-chave: Submarine power cables; Marine renewable energy; Environmental impacts; Ecosystem functioning; Benthic habitats.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00454/56542/58330.pdf

Distribution patterns in the benthic diversity of the eastern English Channel
Provedor de dados: 5
Autores: Foveau, Aurelie; Desroy, Nicolas; Dauvin, Jean-claude; Dewarumez, Jean-marie.
Understanding the distribution of specific diversity is currently an important focus in marine research, and the role of marine biodiversity has been fully recognised as essential for the proper functioning of the biosphere. The objective of this study was to explain the distribution of macrobenthic taxonomic richness (vagile epifauna, endofauna and sessile epifauna) in the eastern part of the English Channel using both classical methods and applying the mid-domain effect (MDE) model. High diversity was encountered in the eastern English Channel (875 taxa), with high-diversity areas often comprising gravelly or pebbly sediments. Sessile epifauna represented 25% of this inventory, revealing the importance of this group. Our results underline the existence...
Tipo: Text
Palavras-chave: Benthic community distribution; Species richness gradient; Mid-domain effect; Chao index.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00137/24780/22835.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) : Année 2007 - District Artois-Picardie
Provedor de dados: 5
Autores: Desroy, Nicolas; Guerin, Laurent; Le Mao, Patrick.
This report deals with results of monitoring carried out in 2007 (monitoring control for benthic invertebrates) for the area concerned by the Artois-Picardie water district.
Tipo: Text
Palavras-chave: Directive Cadre Eau; Benthos; Réseau de surveillance; Manche; European Water Framework Directive; Benthos; Monitoring Network; English Channel.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/00241/35273/33791.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) : Volume II : Flore autre que phytoplancton, Année 2016. District Seine-Normandie.
Provedor de dados: 5
Autores: Foveau, Aurelie; Desroy, Nicolas; Le Mao, Patrick.
This report presents results of the monitoring actions carried out in 2016 (on flora other than phytoplankton) in the water bodies of the Seine-Normandie water district.
Tipo: Text
Palavras-chave: Directive Cadre Eau; Benthos; Réseau de surveillance; Manche; European Water Framework Directive; Benthos; Monitoring Network; English Channel.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00472/58375/60939.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

The conservation status of Sabellaria alveolata (L.) (Polychaeta: Sabellariidae) reefs in the Bay of Mont-Saint-Michel
Provedor de dados: 5
Autores: Desroy, Nicolas; Dubois, Stanislas; Fournier, Jerome; Ricquiers, L.; Le Mao, Patrick; Guerin, Laurent; Gerla, Daniel; Rougerie, Michel; Legendre, Aurelie.
1. Reefs built by the annelid worm Sabellaria alveolata in the Bay of Mont-Saint-Michel (France) are the most extensive intertidal biogenic structures within Europe. Before and after mussel farming extensions, a study designed to provide a biological health index of the Sainte-Anne reef (223 ha) was carried in 2001 and 2007 to serve as an easy-to-use management tool and to ensure endangered reef portions were properly targeted and protected. 2. Coupled physical and biological parameters were included in a spatial Health Status Index (HI). A spatial and temporal mapping survey of the HI showed a continuous deterioration of the reef's state of health, particularly in its central part. This degradation correlates with the colonization of the Pacific oyster...
Tipo: Text
Palavras-chave: Sabellaria alveolata; Biogenic reef; Health status; Biological indicator; Shellfish farming; Recreational fishing activities.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00043/15430/12887.pdf

The ecological quality status of the Bay of Seine and the Seine estuary: Use of biotic indices
Provedor de dados: 5
Autores: Dauvin, Jean-claude; Ruellet, Thierry; Desroy, Nicolas; Janson, Anne-laure.
Using recent indices developed, in part, for use under the European Water Framework Directive (AMBI, BENTIX, BOPA BQI, I2EC and the trophic index ITI), the ecological quality status of two highly contaminated environments-the Bay of Seine and the Seine estuary (Eastern English Channel)-was determined on several spatial and temporal scales. Data from 604 observations gathered over a 14-year period (1988-2002) were analyzed, and the results used to show the relationship between biotic indices, environmental variables and classic descriptors (e.g., number of species, total abundance, dominance index, ES(50) and Shannon/Brillouin diversities). Though the specific ecological quality (EcoQ) values calculated with the various indices were different, the overall...
Tipo: Text
Palavras-chave: Benthic index; Biotic index; Macrobenthos; English Channel; Bay of Seine; Seine estuary.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-2510.pdf

First and repeated records of the tropical-temperate crab Asthenognathus atlanticus Monod, 1932 (Decapoda: Brachyura) in the eastern part of the Bay of Seine (eastern English Channel, France)
Provedor de dados: 5
Autores: Jourde, Jerome; Alizier, Sandrine; Dancie, Chloe; Dauvin, Jean-claude; Desroy, Nicolas; Dubut, Severine; Gentil, Franck; Grall, Jacques; Hanin, Camille; Lanshere, Julien; Thiebaut, Eric.
Asthenognathus atlanticus Monod, 1932, has been reported for the first time from the eastern part of the Bay of Seine (eastern English Channel). A total of 30 specimens were collected between the years 2008 and 2011, along the Normandy coast from Ouistreham to Antifer, mainly on mud and muddy sand habitats, between 10 and 25 m depth. The distribution range of A. atlanticus has been previously known to cover eastern Atlantic coasts from Angola to the western English Channel, where it reached its northern limits. It is also present in the western part of the Mediterranean Sea. The changes in the sediment composition of the eastern Bay of Seine have probably led to the development of a potentially favorable habitat for this species. However, the data...
Tipo: Text
Palavras-chave: Crustacea Decapoda; Asthenognathus atlanticus; Bay of Seine; Geographical extension; Eastern English Channel.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00131/24178/22365.pdf

Use of biotic indices in semi-enclosed coastal ecosystems and transitional waters habitats - Implications for the implementation of the European Water Framework Directive
Provedor de dados: 5
Autores: Blanchet, H; Lavesque, Nicolas; Ruellet, T; Dauvin, J; Sauriau, Pierre-guy; Desroy, Nicolas; Desclaux, C; Leconte, M; Bachelet, G; Janson, A; Bessineton, C; Duhamel, S; Jourde, J; Mayot, S; Simon, S; De Montaudouin, X.
This study deals with the application of macrozoobenthos-based biotic indices (BI) within the frame of the implementation of the European Water Framework Directive. More precisely, this study aimed at assessing the performance of five recently developed methodologies (BI) for the assessment of ecological quality status (EcoQ) in two semi-enclosed, sheltered coastal ecosystems and in one transitional water body situated along the Western French coast, namely Marennes-Oleron Bay, Arcachon Bay, and the Seine Estuary. This study showed that these five indices rarely agreed with each other, describing very different pictures of the overall EcoQ of the three study sites. This work also clearly underlined the limitations of these approaches, notably the...
Tipo: Text
Palavras-chave: Transitional waters; Semi enclosed coastal ecosystems; Benthic invertebrates; Directive; European Water Framework; Biotic index.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-3987.pdf

Impact of magnetic fields generated by AC/DC submarine power cables on the behavior of juvenile European lobster (Homarus gammarus)
Provedor de dados: 5
Autores: Taormina, Bastien; Di Poi, Carole; Agnalt, Ann-lisbeth; Carlier, Antoine; Desroy, Nicolas; Escobar-lux, Rosa Helena; D’eu, Jean-françois; Freytet, Florian; Durif, Caroline M.f.
The number of submarine power cables using either direct or alternating current is expected to increase drastically in coming decades. Data concerning the impact of magnetic fields generated by these cables on marine invertebrates are scarce. In this context, the aim of this study was to explore the potential impact of anthropogenic static and time-varying magnetic fields on the behavior of recently settled juvenile European lobsters (Homarus gammarus) using two different behavioral assays. Day-light conditions were used to stimulate the sheltering behavior and facilitate the video tracking. We showed that juvenile lobsters did not exhibit any change of behavior when submitted to an artificial magnetic field gradient (maximum intensity of 200 µT) compared...
Tipo: Text
Palavras-chave: Anthropogenic impact; Behavior; Homarus gammarus; Magnetic field; Submarine power cable.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00599/71152/69473.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) : Année 2007 - District Seine-Normandie
Provedor de dados: 5
Autores: Desroy, Nicolas; Guerin, Laurent; Le Mao, Patrick.
This report deals with results of monitoring carried out in 2007 (monitoring control for benthic invertebrates and for Zostera marina seagrasses) for the area concernent by the Seine-Normandie water district.
Tipo: Text
Palavras-chave: Directive Cadre Eau; Benthos; Réseau de surveillance; Manche; European Water Framework Directive; Benthos; Monitoring Network; English Channel.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/00242/35282/33800.pdf

Feeding grounds for waders in the Bay of the Mont Saint-Michel (France): the Lanice conchilega reef serves as an oasis in the tidal flats
Provedor de dados: 5
Autores: De Smet, Bart; Godet, Laurent; Fournier, Jerome; Desroy, Nicolas; Jaffre, Mikael; Vincx, Magda; Rabaut, Marijn.
The tube-building polychaete Lanice conchilega can form dense populations, often called reefs, which promote benthic community change and constitute feeding grounds for secondary consumers. The aim of this study was to quantify the role of the L. conchilega reef of the Bay of the Mont Saint-Michel (BMSM) for feeding waders, by combining macrobenthos data, bird counts and bird diet information. Wader densities in the reef were on average 46.6 times higher than in non-reef areas. According to faecal analyses, waders in the reef mainly selected the accompanying fauna and especially crustaceans. The attractiveness of the reef to feeding birds may be largely explained by the high abundance, richness and biomass of macrobenthic species in the reef compared with...
Tipo: Text
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00134/24556/22769.pdf

Benthic metabolism over the emersion - Immersion alternation in sands colonized by the invasive Manila clam Ruditapes philippinarum
Provedor de dados: 5
Autores: Migne, Aline; Trigui, Rima Jihane; Davoult, Dominique; Desroy, Nicolas.
The effect of an invasive infaunal suspension-feeding bivalve, the Manila clam Ruditapes philippinarum, on benthic inorganic carbon and nutrient fluxes was examined through in situ incubations. Measurements were performed in spring and summer on a tidal sandflat of the Rance estuary (south part of the Western English Channel) colonized by the Manila clam after its deliberate introduction in the 1990's. Benthic inorganic carbon fluxes were measured using light and dark benthic chambers both at emersion and immersion. Benthic nutrient fluxes were measured using dark benthic chambers at immersion. Inorganic carbon (IC) and ammonium sediment release under darkness at immersion reached 5.60 mmol m−2 h−1 and 441 μmol m−2 h−1 respectively for a clam density of...
Tipo: Text
Palavras-chave: Benthic fluxes; Benthos; Inorganic carbon; Nutrients; Suspension-feeding bivalve; Tidal flats; France; Western English Channel.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00412/52327/53100.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) : Année 2012 - District Seine-Normandie
Provedor de dados: 5
Autores: Garcia, Aurelie; Desroy, Nicolas; Le Mao, Patrick.
This report deals with results of monitoring carried out in 2012 (monitoring control for benthic invertebrates, marine angiosperms and opportunistic algae) for the area concerned by the Seine-Normandie water district.
Tipo: Text
Palavras-chave: Directive Cadre Eau; Benthos; Réseau de surveillance; Manche; European Water Framework Directive; Benthos; Monitoring Network; English Channel.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00242/35293/33813.pdf

Biocénoses des fonds meubles du circalittoral. Sous-région marine Manche - Mer du Nord. Evaluation initiale DCSMM.
Provedor de dados: 5
Autores: Rolet, Céline; Desroy, Nicolas.
Tipo: Text
Palavras-chave: Manche; Mer du Nord; Circalittoral; Fonds meubles; Campagnes d'exploration; Biocénoses; Espèces benthiques.
Ano: 2012
URL: https://archimer.ifremer.fr/doc/00327/43840/43414.pdf

The presence of Melinna palmata (Annelida : Polychaeta) and Ensis directus (Mollusca : Bivalvia) related to sedimentary changes in the Bay of Seine (English Channel, France)
Provedor de dados: 5
Autores: Dauvin, J; Ruellet, T; Thiebaut, E; Gentil, F; Desroy, Nicolas; Janson, A; Duhamel, S; Jourde, J; Simon, S.
Since late 1990s the annelid polychaete Melinna palmata and the mollusc bivalve Ensis directus have been collected in the eastern part of the Bay of Seine (English Channel), indicating changes in the benthic communities. Melinna palmata was never collected prior to 2002, whereas it was reported in the muddy fine sands of the western part of the Channel, along the French (e.g. Bay of Cherbourg) and southern UK (e.g. Southampton Waters) coasts. Ensis directus was first reported in 1998 and now appears to be well implanted, given the abundant population collected in 2006. The colonization of Melina palmata seems to be a consequence of recent increase of the fine sediment in the eastern part of the Bay, while that of the invasive Ensis directus seems more...
Tipo: Text
Palavras-chave: Invasive species; Environmental disturbances; New records; Range expansion; English Channel; Bay of Seine; Ensis directus; Melinna palmata.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3567.pdf

Ephemeral Bio-engineers or Reef-building Polychaetes: How Stable are Aggregations of the Tube Worm Lanice conchilega (Pallas, 1766)?
Provedor de dados: 5
Autores: Callaway, Ruth; Desroy, Nicolas; Dubois, Stanislas; Fournier, Jerome; Frost, Matthew; Godet, Laurent; Hendrick, Vicki J.; Rabaut, Marijn.
Dense aggregations of tube-worms can stabilize sediments and generate oases for benthic communities that are different and often more diverse and abundant than those of the surroundings. If these features are to qualify as biogenic reefs under nature-conservation legislation such as the EC Habitats Directive, a level of stability and longevity is desirable aside from physical and biological attributes. Lanice conchilega (Pallas, 1766) is widely distributed around the European coast and aggregations of this tube-dwelling polychaete are known to have a positive effect on the biodiversity of associated species in inter- and sub-tidal areas. This increases the value of L. conchilega-rich habitats for higher trophic levels such as birds and fish. However, L....
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00011/12222/9284.pdf

Évolution du récif à Sabellaria alveolata (L.) de la baie du Mont-Saint-Michel
Provedor de dados: 5
Autores: Ricquiers, Laurent; Desroy, Nicolas; Dubois, Stanislas; Guerin, Laurent; Gerla, Daniel; Legendre, Aurelie; Le Mao, Patrick; Rougerie, Michel.
L’état de santé du récif à Sabellaria alveolata de Sainte-Anne a été évalué afin de juger des conséquences des activités menées en baie du Mont Saint Michel (conchyliculture, pêche à pied…) sur ce patrimoine naturel remarquable. Un relevé de différents paramètres a été conduit en 2002 (Dubois, 2003), puis en 2007 sur ce récif subdivisé en carrés de 75x75m. Parmi les données collectées, ont été cartographiées (à l’aide du logiciel SURFER®) afin d’apprécier l’évolution du récif : (1) le recouvrement du récif par les huîtres ; (2) le degré de fragmentation et (3) l’indice d’état de santé (IS)
Tipo: Text
Ano: 2007
URL: https://archimer.ifremer.fr/doc/00156/26686/24748.pdf

Individual-based simulation of the spatial and temporal dynamics of macroinvertebrate functional groups provides insights into benthic community assembly mechanisms
Provedor de dados: 5
Autores: Alexandridis, Nikolaos; Bacher, Cedric; Desroy, Nicolas; Jean, Fred.
The complexity and scales of the processes that shape communities of marine benthic macroinvertebrates has limited our understanding of their assembly mechanisms and the potential to make projections of their spatial and temporal dynamics. Individual-based models can shed light on community assembly mechanisms, by allowing observed spatiotemporal patterns to emerge from first principles about the modeled organisms. Previous work in the Rance estuary (Brittany, France) revealed the principal functional components of its benthic macroinvertebrate communities and derived a set of functional relationships between them. These elements were combined here for the development of a dynamic and spatially explicit model that operates at two spatial scales. At the...
Tipo: Text
Palavras-chave: Individual-based model; Inter-scale modeling; Functional groups; Benthic macroinvertebrates; Community assembly; Biological traits; Biotic interactions; Alpha-diversity; Beta-diversity; Rance estuary.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00445/55654/57319.pdf

Preliminary results on long-term changes of estuarine benthic communities 45 years after the implementation of a tidal power station in the Rance basin (northern Brittany, France).
Provedor de dados: 5
Autores: Trigui, Rima-jihane; Desroy, Nicolas; Le Mao, Patrick; Thiebaut, Eric.
Objectives :  In order to follow the benthic community change in the upstream part of the Rance estuary (poly- and mesohaline areas), a spatio-temporal study is in progress, which aims to compare the structure of the benthic communities with: (1) The previous results of Desroy (1995); (2)Those present in a morphologically similar but unmanaged system, the Trieux estuary.
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00156/26692/24758.pdf

How do macrobenthic resources concentrate foraging waders in large megatidal sandflats?
Provedor de dados: 5
Autores: Ponsero, Alain; Sturbois, Anthony; Desroy, Nicolas; Le Mao, Patrick; Jones, Auriane; Fournier, Jerome.
The relationship between foraging shorebirds, macrobenthos and sedimentary parameters has been widely studied across Western Europe. Megatidal areas have large zones uncovered when the water retreats. Consequently, in such cases, the tide also influences foraging activities. This paper examines the use of an intertidal space by waders to define how macrobenthic resource concentrates foraging activity of birds in a large megatidal sandflat. This approach combines accurate spatial distribution of waders (Oystercatcher, Eurasian curlew, Bar-tailed Godwit and Redknot) according to their activity with ecological/biological parameters. A differential exploitation of the flat is clearly shown, with macrobenthic biomass appearing as one of the main explanatory...
Tipo: Text
Palavras-chave: Waders; Benthos; Foraging behavior; Sandflat; Megatidal environment.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00340/45168/44563.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) : Année 2009 - District Seine-Normandie
Provedor de dados: 5
Autores: Nebout, Thibaut; Desroy, Nicolas; Le Mao, Patrick.
This report deals with results of monitoring carried out in 2009 (monitoring control for benthic invertebrates, maerl beds and opportunistic algae) for the area concerned by the Seine-Normandie water district.
Tipo: Text
Palavras-chave: Directive Cadre Eau; Benthos; Réseau de surveillance; Manche; European Water Framework Directive; Benthos; Monitoring Network; English Channel.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00242/35286/33804.pdf

Les espèces marines animales et végétales introduites dans le bassin Artois-Picardie
Provedor de dados: 5
Autores: Dewarumez, Jean-marie; Gevaert, Francois; Masse, Cécile; Foveau, Aurelie; Desroy, Nicolas; Grulois, Daphnée.
Cet ouvrage est le fruit d’une collaboration entre l’Agence de l’Eau Artois-Picardie et le Laboratoire d’Océanologie et de Géosciences de Wimereux (LOG). Il recense les espèces marines animales et végétales introduites sur la Côte d’Opale, en région Nord - Pas-de-Calais: le but de l'ouvrage est de présenter la liste la plus exhaustive possible des espèces marines introduites. Sont présentés la biologie, l'habitat, la date d'introduction parfois estimée ou la date de première signalisation, la répartition de l'espèce dans les mers avoisinantes ainsi que les problèmes environnementaux qu'elle pose éventuellement.
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00158/26894/25125.pdf

Protocole de suivi stationnel des macroinvertébrés benthiques de substrats meubles subtidaux et intertidaux dans le cadre de la DCE - Façades Manche et Atlantique - Rapport AQUAREF 2014
Provedor de dados: 5
Autores: Garcia, Aurelie; Desroy, Nicolas; Le Mao, Patrick; Miossec, Laurence.
This protocol details the planning, the periods and sampling methods for benthic macroinvertebrates soft bottoms in English Channel and Atlantic water bodies in the context of the WFD. It also describes techniques for analyzing samples and the method of banking data.
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00269/38067/36196.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) : Année 2015 - District Artois-Picardie
Provedor de dados: 5
Autores: Foveau, Aurelie; Garcia, Aurélie; Desroy, Nicolas; Le Mao, Patrick.
This report shows results of the monitoring actions carried out in 2015 (surveillance monitoring of macrobenthic invertebrates) in the water bodies (coastal and transitional) of the Artois-Picardie water district. Results are compared with those collected during the first management plan (2010-2015).
Tipo: Text
Palavras-chave: Directive Cadre Eau; Benthos; Réseau de surveillance; Manche; European Water Framework Directive; Benthos; Monitoring Network; English Channel.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00472/58378/60943.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) - Année 2014 - District Artois Picardie
Provedor de dados: 5
Autores: Garcia, Aurélie; Desroy, Nicolas; Le Mao, Patrick.
This report deals with results of monitoring carried out in 2014 for the area concerned by the Artois-Picardie water district.
Tipo: Text
Palavras-chave: Directive Cadre Eau; Benthos; Réseau de surveillance; Manche; European Water Framework Directive; Benthos; Monitoring Network; English Channel.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00302/41313/40503.pdf

Avis de l'Ifremer sur demandes SM20/0004 et SM20/0050 de concessions en Rance
Provedor de dados: 5
Autores: Cheve, Julien; Desroy, Nicolas.
Tipo: Text
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00681/79319/81827.pdf

Impact of the Phaeocystis globosa spring bloom on the intertidal benthic compartment in the eastern English Channel: A synthesis
Provedor de dados: 5
Autores: Spilmont, Nicolas; Denis, Lucie; Artigas, Luis Felipe; Caloin, Frederic; Courcot, Lucie; Creach, Anne; Desroy, Nicolas; Gevaert, Francois; Hacquebart, Pascal; Hubas, Cedric; Janquin, Marie-andree; Lemoine, Yves; Luczak, Christophe; Migne, Aline; Rauch, Mathieu; Davoult, Dominique.
From 1999 to 2005, studies carried out in the frame of regional and national French programs aimed to determine whether the Phaeocystis globosa bloom affected the intertidal benthic communities of the French coast of the eastern English Channel in terms of composition and/or functioning. Study sites were chosen to cover most of the typical shore types encountered on this coast (a rocky shore, an exposed sandy beach and a small estuary). Both the presence of active Phaeocystis cells and their degradation product (foam) did have a significant impact on the studied shores. The primary production and growth rates of the kelp Saccharina latissima decreased during the bloom because of a shortage of fight and nutrient for the macroalgae. On sandy sediments, the...
Tipo: Text
Palavras-chave: Macrozoobenthos; Bacteria; Saccharina latissima; Benthic fluxes; Phaeocystis globosa; Intertidal.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6142.pdf

Atlas de la faune marine invertébrée du golfe Normano-Breton. Volume 2. Annélides
Provedor de dados: 5
Autores: Le Mao, Patrick; Godet, Laurent; Fournier, Jérôme; Desroy, Nicolas; Gentil, Franck; Thiébault, Eric; Pourinet, Laurent.
Le golfe Normano-Breton est bordé au sud par les côtes rocheuses bretonnes indentées des deux grandes baies de Saint-Brieuc et du Mont-Saint-Michel et, à l’est, par les côtes normandes, essentiellement sableuses et ponctuées d’une succession de havres entre les falaises de Carolles et le cap de la Hague. Abritant les îles Anglo-Normandes, ce golfe se caractérise par des petits fonds généralement inférieurs à 50 mètres de profondeur, un régime de marée macro à mégatidal, de forts courants et la présence de structures tourbillonnaires qui l’isolent en partie du reste de la Manche occidentale. La mosaïque de ses fonds – composés pour l’essentiel de sédiments grossiers – et de ses habitats benthiques, combinée à une riche histoire naturaliste, en font un...
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00612/72371/71330.pdf

Classement des masses d’eau du littoral Manche-Atlantique sur la base de l’indicateur DCE «Angiospermes» (2012-2016)
Provedor de dados: 5
Autores: Auby, Isabelle; Oger-jeanneret, Helene; Trut, Gilles; Ganthy, Florian; Rigouin, Loic; De Casamajor, Marie-noelle; Sanchez, Florence; Lissardy, Muriel; Fortune, Mireille; Manach, Soazig; Bizzozero, Lucie; Rollet, Claire; Lejolivet, Aurore; Desroy, Nicolas; Foveau, Aurelie; Le Mao, Patrick; Sauriau, P.g.; Aubert, A.; Cajeri, P.; Curti, C.; Duvard, A.; Latry, L.; Lachaussee, N.; Pineau, P.; Plumejeaud-perreau, C.; Aubin, S.; Droual, G.; Fournier, J.; Garcia, A; Guillaudeau, J.; Hubert, C.; Humbert, S.; Janson, A.l.; Masse, C.; Panizza, A.c.; Grall, J.; Maguer, M.; Hily, C.; Hacquebart, P.; Joncourt, Y.; Baffreau, A.; Timsit, O.
Certaines masses d’eau s’avérant parfois déclassées par cet élément de qualité, le groupe de travail DCE « Eaux Littorales » a sollicité de la part des scientifiques une réflexion sur les raisons de ce mauvais classement et les éventuelles actions de restauration ou d'amélioration de connaissances relatives aux herbiers de ces zones. L’objectif de cette expertise, soutenue par l’Agence Française pour la Biodiversité, et réalisée en collaboration avec les acteurs concernés par l’indicateur « angiospermes » sur les façades Manche-Atlantique, est d’identifier les pressions potentiellement responsables de cette situation (Tableau 1) en prenant également en compte l’effet des différentes métriques de l’indicateur sur les résultats obtenus.
Tipo: Text
Ano: 2018
URL: http://archimer.ifremer.fr/doc/00427/53868/54918.pdf

Atlas de la faune marine invertébrée du golfe Normano-Breton. Volume 4. Arthropodes
Provedor de dados: 5
Autores: Le Mao, Patrick; Godet, Laurent; Fournier, Jérôme; Desroy, Nicolas; Gentil, Franck; Thiébault, Eric; Pourinet, Laurent.
Le golfe Normano-Breton est bordé au sud par les côtes rocheuses bretonnes indentées des deux grandes baies de Saint-Brieuc et du Mont-Saint-Michel et, à l’est, par les côtes normandes, essentiellement sableuses et ponctuées d’une succession de havres entre les falaises de Carolles et le cap de la Hague. Abritant les îles Anglo-Normandes, ce golfe se caractérise par des petits fonds généralement inférieurs à 50 mètres de profondeur, un régime de marée macro à mégatidal, de forts courants et la présence de structures tourbillonnaires qui l’isolent en partie du reste de la Manche occidentale. La mosaïque de ses fonds – composés pour l’essentiel de sédiments grossiers – et de ses habitats benthiques, combinée à une riche histoire naturaliste, en font un...
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00612/72372/71331.pdf

Trophic ecology of juvenile flatfish in a coastal nursery ground: contributions of intertidal primary production and freshwater particulate organic matter
Provedor de dados: 5
Autores: Kostecki, Caroline; Roussel, J. M.; Desroy, Nicolas; Roussel, G.; Lanshere, J.; Le Bris, H.; Le Pape, Olivier.
Coastal and estuarine nurseries are essential habitats for juvenile flatfish. These small but productive areas provide food supply and sustain adult fish populations. The Mont-Saint-Michel Bay (MSMB) supports an important flatfish nursery ground but differs from many other nursery habitats due to limited freshwater inputs. The objectives of the present study in the MSMB were to (1) use gut content analysis to identify prey of the 2 most abundant flatfish species (common sole Solea solea and plaice Pleuronectes platessa) for different juvenile age-classes (0-group and 1-group for sole, 0-group for plaice), (2) use C and N stable isotope analysis to model the production sources sustaining juvenile flatfish production, and (3) compare these results with...
Tipo: Text
Palavras-chave: Microphytobenthos; Organic matter origin; Benthic food web; Coastal nursery ground; Juvenile flatfish.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00073/18438/15976.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) : Année 2011 - District Artois-Picardie
Provedor de dados: 5
Autores: Nebout, Thibaut; Desroy, Nicolas; Le Mao, Patrick.
This report deals with results of monitoring carried out in 2011 (monitoring control for benthic compartment : benthic invertebrates and macroalgae) for the area concerned by the Artois-Picardie water district.
Tipo: Text
Palavras-chave: Directive Cadre Eau; Benthos; Réseau de surveillance; Manche; European Water Framework Directive; Benthos; Monitoring Network; English Channel.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00242/35277/33796.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) : Année 2012 - District Artois-Picardie
Provedor de dados: 5
Autores: Garcia, Aurelie; Desroy, Nicolas; Le Mao, Patrick.
This report deals with results of monitoring carried out in 2012 (monitoring control for benthic invertebrates, marine angiosperms and opportunistic algae) for the area concerned by the Artois-Picardie water district.
Tipo: Text
Palavras-chave: Directive Cadre Eau; Benthos; Réseau de surveillance; Manche; European Water Framework Directive; Benthos; Monitoring Network; English Channel.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00242/35280/33798.pdf

Ambient flow velocity and resulting clearance rates of the terebellid polychaete Lanice conchilega (Pallas, 1766)
Provedor de dados: 5
Autores: Denis, L; Desroy, Nicolas; Ropert, Michel.
A laboratory flume study was conducted to determine the effect of flow velocity on clearance rates of the Polychaeta Terebellidea Lanice conchilega (Pallas, 1966). Using sets of 75 individuals collected along the east coast of the English Channel, we measured clearance rates at five flow velocities of approximate to 4, 9, 15, 22 and 27 cm s(-1) with a culture of the diatom Chaetoceros calcitrans as food source. During each control (without polychaetes) or clearance (with Lanice conchilega) experiment, in vivo fluorescence was continuously monitored. Further HPLC analysis confirmed the sediment resuspension for the highest flow velocities tested, indicating the need for 'corrections' from control experiments. The global pattern resulted in a dome-shaped...
Tipo: Text
Palavras-chave: Recirculating flume; Feeding activity; Terebellidea; Polychaetes; Clearance rate; Lanice conchilega.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3418.pdf

Interplay between abiotic factors and species assemblages mediated by the ecosystem engineer Sabellaria alveolata (Annelida: Polychaeta)
Provedor de dados: 5
Autores: Jones, Auriane; Dubois, Stanislas; Desroy, Nicolas; Fournier, Jerome.
abellaria alveolata is a gregarious polychaete that uses sand particles to build three-dimensional structures known as reefs, fixed atop rocks or built on soft sediments. These structures are known to modify the local grain-size distribution and to host a highly diversified macrofauna, altered when the reef undergoes disturbances. The goal of this study was to investigate the different sedimentary and biological changes associated with the presence of a S. alveolata reef over two contrasting seasons (late winter and late summer), and how these changes were linked. Three different sediments were considered: the engineered sediment (the actual reef), the associated sediment (the soft sediment surrounding the reef structures) and a control soft sediment (i.e....
Tipo: Text
Palavras-chave: Honeycomb worm; Macrobenthos; Benthic primary production; Habitat disturbance; Silt; Beta diversity; France; Brittany; Mont Saint-Michel Bay.
Ano: 2018
URL: http://archimer.ifremer.fr/doc/00405/51649/52198.pdf

Qualitative modelling of functional relationships in marine benthic communities
Provedor de dados: 5
Autores: Alexandridis, Nikolaos; Dambacher, Jeffrey M.; Jean, Fred; Desroy, Nicolas; Bacher, Cedric.
In order to better understand and predict the dynamics of benthic macroinvertebrate communities, we need to first define the functional components of benthic biodiversity and then provide a mechanistic description of how they interact with their abiotic environment, their basic resources and each other. These interactions should be largely controlled by readily available biological traits, making trait-based modelling an ideal framework for the synthesis of relevant hypotheses from ecological theory and expert knowledge. With the help of benthic species traits, we derived a set of first principles regarding the role of organisms in processes of environmental filtering, consumption of algae/detritus, predation, use of space, biogenic habitat modification...
Tipo: Text
Palavras-chave: Benthic macroinvertebrates; Biological traits; Biotic interactions; Community assembly; Functional groups; Qualitative modelling.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00394/50587/51411.pdf

The role of structuring benthos for juvenile flatfish
Provedor de dados: 5
Autores: Rabaut, M.; Calderon, M. Audfroid; Van De Moortel, L.; Van Dalfsen, J.; Vincx, M.; Degraer, S.; Desroy, Nicolas.
Within coastal nurseries, the distribution of juvenile flatfish may depend on small-scale habitat variability. The presence of ecosystem engineers is known to have important impacts in coastal sediments. Lanice conchilega is a well-known marine ecosystem engineer of shallow soft bottom ecosystems, shaping the macrobenthic community and attracting flatfish. The present study examines the relation between juvenile flatfish and L conchilega reefs through two experiments. In a field experiment in the Dutch part of the North Sea, the benthic habitat is evaluated by comparing relative differences in numbers of juvenile flatfish between ecosystem engineered habitats and adjacent bare sand (i.e. non-ecosystem engineered) habitats. The hypothetical shelter seeking...
Tipo: Text
Palavras-chave: Juvenile flatfish; Shelter; Feeding ground; Lanice conchilega; Ecosystem engineer; Pleuronectes platessa.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00170/28104/26702.pdf

Interactions between a natural food web, shellfish farming and exotic species: The case of the Bay of Mont Saint Michel (France)
Provedor de dados: 5
Autores: Arbach Leloup, F.; Desroy, Nicolas; Le Mao, Patrick; Pauly, D.; Le Pape, Olivier.
To ensure sustainable uses of the coastal zone, an integrated ecosystemic approach and ecosystem models are required to frame ecological processes and evaluate environmental impacts. Here, a mass-balance trophic (Ecopath) model of the Mont Saint Michel Bay (MSMB) was developed, to analyze the bay's functioning as an ecosystem. This bay, intensively exploited by fishing and for shellfish farming, is also suffering from the proliferation of the gastropod Crepidula fornicata, an exotic species.  The MSMB model has 18 compartments, from the primary producers to top predators, and emphasizes the large biomass of filter feeders. The model identified the MSMB as a highly productive ecosystem controlled largely from the bottom-up, and strongly impacted by huge...
Tipo: Text
Palavras-chave: Mont Saint Michel Bay; Crepidula fornicata; Invasive species; Shellfish farming; Trophic model; Ecopath.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2007/publication-2605.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) : Année 2010 - District Seine-Normandie
Provedor de dados: 5
Autores: Nebout, Thibaut; Desroy, Nicolas; Le Mao, Patrick.
This report deals with results of monitoring carried out in 2010 (monitoring control for benthic invertebrates, Zostera marina seagrasses, macroalgae in transitional water and opportunistic algae) for the area concerned by the Seine-Normandie water distric.
Tipo: Text
Palavras-chave: Directive Cadre Eau; Benthos; Réseau de surveillance; Manche; European Water Framework Directive; Benthos; Monitoring Network; English Channel.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00242/35287/33807.pdf

Does the Phaeocystis bloom affect the diel migration of the suprabenthos community?
Provedor de dados: 5
Autores: Dauvin, J; Desroy, Nicolas; Denis, L; Ruellet, T.
The suprabenthos comprises all bottom-dependent animals, mainly crustaceans (including decapods and peracarids), which perform - with varying amplitude, intensity and regularity - seasonal or daily vertical migrations above the sea floor. The presence of organisms in the Benthic Boundary Layer is determined by two general factors: (1) organism behaviour, which depends on the light penetration in the water column and (2) boundary-layer hydrodynamics. In the coastal zone of the eastern English Channel, during the spring Phaeocystis bloom, the presence of gelatinous colonies modifies the penetration of light in the water column, which may seriously affect the abundance and/or the behaviour of the suprabenthos community. To clarify this point, 19 suprabenthic...
Tipo: Text
Palavras-chave: Diel migration; Phaeocystis bloom; English channel; Suprabenthos.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-4066.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) : Année 2013. District Artois-Picardie
Provedor de dados: 5
Autores: Desroy, Nicolas; Garcia, Aurelie; Le Mao, Patrick.
This report deals with results of monitoring carried out in 2013 for the area concerned by the Artois-Picardie water district.
Tipo: Text
Palavras-chave: Directive Cadre Eau; Benthos; Réseau de surveillance; Manche; European Water Framework Directive; Benthos; Monitoring Network; English Channel.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00251/36207/34751.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) : Année 2009 - District Artois-Picardie
Provedor de dados: 5
Autores: Nebout, Thibaut; Desroy, Nicolas; Le Mao, Patrick.
This report deals with results of monitoring carried out in 2009 (monitoring control for benthic compartment : benthic invertebrates and macroalgae) for the area concerned by the Artois-Picardie water district.
Tipo: Text
Palavras-chave: Directive Cadre Eau; Benthos; Réseau de surveillance; Manche; European Water Framework Directive; Benthos; Monitoring Network; English Channel.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00242/35275/33794.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) : Année 2016. District Artois-Picardie.
Provedor de dados: 5
Autores: Foveau, Aurélie; Desroy, Nicolas; Le Mao, Patrick.
This report deals with results of monitoring carried out in 2016 for the area concerned by the Artois-Picardie water district.
Tipo: Text
Palavras-chave: Directive Cadre Eau; Benthos; Réseau de surveillance; Manche; European Water Framework Directive; Benthos; Monitoring Network; English Channel.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00472/58373/60937.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) : Volume I : Macroinvertébrés benthiques, Année 2014. District Seine-Normandie
Provedor de dados: 5
Autores: Goyot, Ludovic; Garcia, Aurélie; Desroy, Nicolas; Le Mao, Patrick.
This report deals with results of benthic macroinvertebrates monitoring carried out in 2014 for the Seine-Normandie water district.
Tipo: Text
Palavras-chave: Directive Cadre Eau; Benthos; Réseau de surveillance; Manche; European Water Framework Directive; Benthos; Monitoring Network; English Channel.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00301/41253/40508.pdf

Atlas de la faune marine invertébrée du golfe Normano-Breton. Volume 7. Bibliographie, glossaire &amp; index
Provedor de dados: 5
Autores: Le Mao, Patrick; Godet, Laurent; Fournier, Jérôme; Desroy, Nicolas; Gentil, Franck; Thiébault, Eric; Pourinet, Laurent.
Le golfe Normano-Breton est bordé au sud par les côtes rocheuses bretonnes indentées des deux grandes baies de Saint-Brieuc et du Mont-Saint-Michel et, à l’est, par les côtes normandes, essentiellement sableuses et ponctuées d’une succession de havres entre les falaises de Carolles et le cap de la Hague. Abritant les îles Anglo-Normandes, ce golfe se caractérise par des petits fonds généralement inférieurs à 50 mètres de profondeur, un régime de marée macro à mégatidal, de forts courants et la présence de structures tourbillonnaires qui l’isolent en partie du reste de la Manche occidentale. La mosaïque de ses fonds – composés pour l’essentiel de sédiments grossiers – et de ses habitats benthiques, combinée à une riche histoire naturaliste, en font un...
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00612/72375/71334.pdf

Influence of stability and fragmentation of a worm-reef on benthic macrofauna
Provedor de dados: 5
Autores: Godet, Laurent; Fournier, Jerome; Jaffre, Mikael; Desroy, Nicolas.
In coastal areas, reef-builder worms often are bio-engineers by structuring their physical and biological environment. Many studies showed that this engineering role is determined by the densities of the engineer species itself, the highest densities approximately corresponding to the most stable areas from a sedimentological point of view, and hosting the richest and the most diverse benthic fauna. Here, we tested the potential influence of the spatio-temporal dynamics and the spatial fragmentation of one of the largest European intertidal reefs generated by the marine worm Lanice conchilega (Pallas, 1766) (Annelida, Polychaeta) on the associated benthic macrofauna. We demonstrated that the worm densities do have a significant positive role on the...
Tipo: Text
Palavras-chave: Reefs; Zoobenthos; Stability; Fragmentation; Tidal flats; Bay of the Mont-Saint-Michel.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00044/15560/12973.pdf

Cartographie bio-sédimentaire des fonds subtidaux de l’archipel de Chausey. Programme HEIMa. Rapport final
Provedor de dados: 5
Autores: Fournier, Jérome; Desroy, Nicolas; Ehrhold, Axel; Autret, Elodie; Cordier, Celine; Janson, Anne-laure.
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00280/39163/37752.pdf

Dynamics of an estuarine nursery ground: the spatio-temporal relationship between the river flow and the food web of the juvenile common sole (Solea solea, L.) as revealed by stable isotopes analysis
Provedor de dados: 5
Autores: Kostecki, Caroline; Le Loc'H, F.; Roussel, J. -m.; Desroy, Nicolas; Huteau, D.; Riera, Pascal; Le Bris, H.; Le Pape, Olivier.
Estuaries are essential fish habitats because they provide nursery grounds for a number of marine species. Previous studies in the Bay of Vilaine (part of the Bay of Biscay, France) have underlined the estuarine dependence of juvenile common sole (Solea solea, L) and shown that the extent of sole nursery grounds was positively influenced by the variability of the river flow. In the present study, stable carbon and nitrogen isotopes were used to describe the trophic network until the young-of-the-year sole and to compare interannual variations in the dominant trophic pathways in the sole nursery areas in this bay. Particulate organic matter (POM), sediment organic matter (SOM), microphytobenthos, benthic invertebrate sole prey and young-of-the-year common...
Tipo: Text
Palavras-chave: Juvenile Common Sole; Stable Isotopes; Estuarine Nursery Grounds; Food Web; Eastern Atlantic.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00008/11923/8641.pdf

Building functional groups of marine benthic macroinvertebrates on the basis of general community assembly mechanisms
Provedor de dados: 5
Autores: Alexandridis, Nikolaos; Bacher, Cedric; Desroy, Nicolas; Jean, Fred.
The accurate reproduction of the spatial and temporal dynamics of marine benthic biodiversity requires the development of mechanistic models, based on the processes that shape macroinvertebrate communities. The modelled entities should, accordingly, be able to adequately represent the many functional roles that are performed by benthic organisms. With this goal in mind, we applied the emergent group hypothesis (EGH), which assumes functional equivalence within and functional divergence between groups of species. The first step of the grouping involved the selection of 14 biological traits that describe the role of benthic macroinvertebrates in 7 important community assembly mechanisms. A matrix of trait values for the 240 species that occurred in the Rance...
Tipo: Text
Palavras-chave: Assembly mechanisms; Benthic communities; Biological traits; Emergent groups; Functional diversity; Functional redundancy.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00369/47975/48000.pdf

Atlas de la faune marine invertébrée du golfe Normano-Breton. Volume 3. Mollusques
Provedor de dados: 5
Autores: Le Mao, Patrick; Godet, Laurent; Fournier, Jérôme; Desroy, Nicolas; Gentil, Franck; Thiébault, Eric; Pourinet, Laurent.
Le golfe Normano-Breton est bordé au sud par les côtes rocheuses bretonnes indentées des deux grandes baies de Saint-Brieuc et du Mont-Saint-Michel et, à l’est, par les côtes normandes, essentiellement sableuses et ponctuées d’une succession de havres entre les falaises de Carolles et le cap de la Hague. Abritant les îles Anglo-Normandes, ce golfe se caractérise par des petits fonds généralement inférieurs à 50 mètres de profondeur, un régime de marée macro à mégatidal, de forts courants et la présence de structures tourbillonnaires qui l’isolent en partie du reste de la Manche occidentale. La mosaïque de ses fonds – composés pour l’essentiel de sédiments grossiers – et de ses habitats benthiques, combinée à une riche histoire naturaliste, en font un...
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00611/72345/71240.pdf

Exploitation of intertidal feeding resources by the Red Knot Calidris canutus under megatidal conditions (Bay of Saint-Brieuc, France)
Provedor de dados: 5
Autores: Sturbois, Anthony; Ponsero, Alain; Desroy, Nicolas; Le Mao, Patrick; Fournier, Jerome.
The feeding ecology of the red knot has been widely studied across its wintering range. Red knots mainly select bivalves and gastropods, with differences between sites due to variation in prey availability. Shorebird’s diet is also influenced or controlled by the tidal regime. The aim of this paper is to demonstrate the adaptation of foraging red knots to the megatidal environment. The variation in their diet during tidal cycles was studied in the bay of Saint-Brieuc, a functional unit for this species. The method used combined macrofauna, distribution of foraging birds and diet data. Comparative spatial analyses of macrofauna and distribution of foraging red knots have shown that the bay's four benthic assemblages are exploited by birds. By analysing...
Tipo: Text
Palavras-chave: Diet; Benthos; Intertidal flat; Megatidal environment; Bay of Saint-Brieuc.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00226/33767/32194.pdf

Reduction of flatfish habitat as a consequence of the proliferation of an invasive mollusc
Provedor de dados: 5
Autores: Kostecki, Caroline; Rochette, S.; Girardin, R.; Blanchard, Michel; Desroy, Nicolas; Le Pape, Olivier.
Coastal bays provide habitats for juveniles and adults of many marine species. Mont Saint-Michel Bay (MSMB, France) hosts a highly diversified fish community and constitutes one of the most important nursery grounds for many commercially exploited marine species, such as sea bass, flatfish, clupeids and rays in the English Channel. Besides, MSMB also suffers from the massive invasion of an exotic mollusc, the American slipper-limpet (Crepidula fornicata, L). This species arrived four decades ago and now represents the main filter-feeder biomass in the bay (150 Mt), an order of magnitude larger than local farmed and natural shellfishes. Recent analyses underlined the impact of this small gastropod on the trophic structure of this bay and its negative...
Tipo: Text
Palavras-chave: Spatial competition; Flatfish habitat; Crepidula fornicata; Invasive species; Mont Saint-Michel Bay.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00035/14641/11990.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) : Année 2011 - District Seine-Normandie
Provedor de dados: 5
Autores: Neboud, Thibaut; Garcia, Aurelie; Desroy, Nicolas; Le Mao, Patrick.
This report deals with results of monitoring carried out in 2011 (monitoring control for benthic invertebrates, macroalgae in costal water and opportunistic algae) for the area concerned by the Seine-Normandie water district.
Tipo: Text
Palavras-chave: Directive Cadre Eau; Benthos; Réseau de surveillance; Manche; European Water Framework Directive; Benthos; Monitoring Network; English Channel.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00242/35292/33811.pdf

The ICES North Sea Benthos Project 2000: aims, outcomes and recommendations
Provedor de dados: 5
Autores: Rees, Hubert; Eggleton, Jacqueline D.; Vanden Berghe, Edward; Aldridge, John; Bergman, Magda J. N.; Boalm,; Cochrane, Sabine; Craeymeersch, Johan A.; Degraer, Steven; Desroy, Nicolas; Dewarumez, Jean-marie; Duineveld, Gca; Essink, Karel; Goethals,; Hillewaert, Hans; Irion,; Kershaw, Peter; Kroncke, Ingrid; Lavayele, Marc; Mason, Claire; Nehring, Stefan; Newell, Richard; Oug, Eivind; Pohlman, Thomas; Reiss, Henning; Robertson, Mike; Rumorh, Heye; Schratzberger, Michaela; Smith,; Van Dalfsen, Jan; Van Hoey, Gert; Vincx, Magda; Willems, Wouter.
The ICES Study Group on the North Sea Benthos Project 2000 undertook to integrate recent (1999–2002) macrobenthic infaunal and environmental data from various national sources. The main aim was to compare the outcome with that of the ICES North Sea Benthos Survey conducted in 1986, to identify any significant changes and their likely causes. In the process, the exercise yielded valuable lessons for the conduct of international collaborative programmes, as well as insights into the utility of a range of interpretational tools. These are timely in view of increasing requirements for periodic sea-wide assessments of quality status to meet international obligations, such as those under OSPAR, ICES, HELCOM, and EU auspices for European waters. This paper...
Tipo: Text
Palavras-chave: Macrobenthos; Infauna; Sediments; Communities; Ecosystems; North Sea.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/00158/26893/25024.pdf

Biocénoses des fonds meubles du circalittoral. Sous-région marine Mers celtiques. Evaluation initiale DCSMM.
Provedor de dados: 5
Autores: Rolet, Céline; Desroy, Nicolas.
Tipo: Text
Palavras-chave: Mers celtiques; Circalittoral; Fonds meubles; Biocénoses; Espèces benthiques.
Ano: 2012
URL: https://archimer.ifremer.fr/doc/00328/43943/43516.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) : Année 2013. District Seine-Normandie
Provedor de dados: 5
Autores: Garcia, Aurelie; Desroy, Nicolas; Le Mao, Patrick.
This report deals with results of monitoring carried out in 2013 (monitoring control for benthic invertebrates, marine angiosperms and opportunistic algae) for the area concerned by the Seine-Normandie water district.
Tipo: Text
Palavras-chave: Directive Cadre Eau; Benthos; Réseau de surveillance; Manche; European Water Framework Directive; Benthos; Monitoring Network; English Channel.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00250/36129/34681.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) : Année 2008 - District Seine-Normandie
Provedor de dados: 5
Autores: Nebout, Thibaut; Desroy, Nicolas; Le Mao, Patrick.
This report deals with results of monitoring carried out in 2008 (monitoring control for benthic invertebrates, macroalgae, opportunistic algae and for Zostera marina and Zostera noltii seagrasses) for the area concerned by the Seine-Normandie water district.
Tipo: Text
Palavras-chave: Directive Cadre Eau; Benthos; Réseau de surveillance; Manche; European Water Framework Directive; Benthos; Monitoring Network; English Channel.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00242/35284/33801.pdf

Latitudinal Patterns in European Seagrass Carbon Reserves: Influence of Seasonal Fluctuations versus Short-Term Stress and Disturbance Events
Provedor de dados: 5
Autores: Soissons, Laura M.; Haanstra, Eeke P.; Van Katwijk, Marieke M.; Asmus, Ragnhild; Auby, Isabelle; Barille, Laurent; Brun, Fernando G.; Cardoso, Patricia G.; Desroy, Nicolas; Fournier, Jerome; Ganthy, Florian; Garmendia, Joxe-mikel; Godet, Laurent; Grilo, Tiago F.; Kadel, Petra; Ondiviela, Barbara; Peralta, Gloria; Puente, Araceli; Recio, Maria; Rigouin, Loic; Valle, Mireia; Herman, Peter M. J.; Bouma, Tjeerd J.
Seagrass meadows form highly productive and valuable ecosystems in the marine environment. Throughout the year, seagrass meadows are exposed to abiotic and biotic variations linked to (i) seasonal fluctuations, (ii) short-term stress events such as, e.g., local nutrient enrichment, and (iii) small-scale disturbances such as, e.g., biomass removal by grazing. We hypothesized that short-term stress events and small-scale disturbances may affect seagrass chance for survival in temperate latitudes. To test this hypothesis we focused on seagrass carbon reserves in the form of starch stored seasonally in rhizomes, as these have been defined as a good indicator for winter survival. Twelve Zostera noltei meadows were monitored along a latitudinal gradient in...
Tipo: Text
Palavras-chave: Carbon reserves; European Atlantic coast; Latitude; Resilience; Zostera noltei; Climate setting; Stress events.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00423/53420/54308.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) : Année 2010 - District Artois-Picardie
Provedor de dados: 5
Autores: Nebout, Thibaut; Desroy, Nicolas; Le Mao, Patrick.
This report deals with results of monitoring carried out in 2010 (monitoring control for benthic compartment : benthic invertebrates) for the area concerned by the Artois-Picardie water district.
Tipo: Text
Palavras-chave: Directive Cadre Eau; Benthos; Réseau de surveillance; Manche; European Water Framework Directive; Benthos; Monitoring Network; English Channel.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00242/35276/33795.pdf

Atlas de la faune marine invertébrée du golfe Normano-Breton. Volume 1. Présentation
Provedor de dados: 5
Autores: Le Mao, Patrick; Godet, Laurent; Fournier, Jérôme; Desroy, Nicolas; Gentil, Franck; Thiébault, Eric; Pourinet, Laurent.
Le golfe Normano-Breton est bordé au sud par les côtes rocheuses bretonnes indentées des deux grandes baies de Saint-Brieuc et du Mont-Saint-Michel et, à l’est, par les côtes normandes, essentiellement sableuses et ponctuées d’une succession de havres entre les falaises de Carolles et le cap de la Hague. Abritant les îles Anglo-Normandes, ce golfe se caractérise par des petits fonds généralement inférieurs à 50 mètres de profondeur, un régime de marée macro à mégatidal, de forts courants et la présence de structures tourbillonnaires qui l’isolent en partie du reste de la Manche occidentale. La mosaïque de ses fonds – composés pour l’essentiel de sédiments grossiers – et de ses habitats benthiques, combinée à une riche histoire naturaliste, en font un...
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00612/72370/71329.pdf

Contrôle de surveillance benthique de la Directive Cadre sur l'Eau (2000/60/CE) : Volume II : Flore autre que phytoplancton, Année 2015. District Seine-Normandie.
Provedor de dados: 5
Autores: Garcia, Aurélie; Desroy, Nicolas; Le Mao, Patrick.
This report presents results of the monitoring actions carried out in 2015 (on flora other than phytoplankton) in the water bodies of the Seine-Normandie water district.
Tipo: Text
Palavras-chave: Directive Cadre Eau; Benthos; Réseau de surveillance; Manche; European Water Framework Directive; Benthos; Monitoring Network; English Channel.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00472/58377/60942.pdf

Determining the Ecological Status of Benthic Coastal Communities: A Case in an Anthropized Sub-Arctic Area
Provedor de dados: 5
Autores: Dreujou, Elliot; Desroy, Nicolas; Carrière, Julie; Tréau De Coeli, Lisa; Mckindsey, Christopher W.; Archambault, Philippe.
With the widespread influence of human activities on marine ecosystems, evaluation of ecological status provides valuable information for conservation initiatives and sustainable development. To this end, many environmental indicators have been developed worldwide and there is a growing need to evaluate their performance by calculating ecological status in a wide range of ecosystems at multiple spatial and temporal scales. This study calculated and contrasted sixteen indicators of ecological status from three methodological categories: abundance measures, diversity parameters and characteristic species. This selection was applied to coastal benthic ecosystems at Sept-Îles (Québec, Canada), an important industrial harbor area in the Gulf of St. Lawrence,...
Tipo: Text
Palavras-chave: Environmental indicators; Ecological status; Coastal benthos; Macrofauna; Gulf of St; Lawrence.
Ano: 2021
URL: https://archimer.ifremer.fr/doc/00687/79910/82820.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

Le projet ANR-COMANCHE 2010-STRA-010. Interactions écosystémiques et impacts anthropiques dans les populations de COquilles Saint-Jacques (Pecten maximus) de la MANCHE. Rapport scientifique final
Provedor de dados: 5
Autores: Foucher, Eric; Blanchard, Michel; Cugier, Philippe; Desroy, Nicolas; Dreanno, Catherine; Fauchot, Juliette; Fifas, Spyros; Guyader, Olivier; Jean, Frederic; Le Gallic, Bertrand; Riou, Philippe; Schapira, Mathilde; Thiebaut, Eric.
The King scallop Pecten maximus constitutes the first landed species in terms of tonnage and the second or third one in terms of value for the French fisheries. More than 90% of these landings come from the English Channel indicating that its exploitation is essential to local fleets. The COMANCHE project (Ecosystem Interactions and anthropogenic impacts on King scallops populations in the English Channel) proposed to improve the knowledge of the scallop within the Channel, through an ecosystem-based approach for fisheries, appealing to a wide range of scientific disciplines (physics, chemistry, genetics, ecology, geostatistics, modeling, economics ....). Researches on the spatial location of scallop beds, connectivity by larval dispersal between beds,...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00251/36236/34797.pdf

A coupled biophysical model for the distribution of the great scallop Pecten maximus in the English Channel
Provedor de dados: 5
Autores: Le Goff, Clement; Lavaud, Romain; Cugier, Philippe; Jean, Fred; Flye-sainte-marie, Jonathan; Foucher, Eric; Desroy, Nicolas; Fifas, Spyros; Foveau, Aurelie.
In this paper we used a modelling approach integrating both physical and biological constraints to understand the biogeographical distribution of the great scallop Pecten maximus in the English Channel during its whole life cycle. A 3D bio-hydrodynamical model (ECO-MARS3D) providing environmental conditions was coupled to (i) a population dynamics model and (ii) an individual ecophysiological model (Dynamic Energy Budget model). We performed the coupling sequentially, which underlined the respective role of biological and physical factors in defining P. maximus distribution in the English Channel. Results show that larval dispersion by hydrodynamics explains most of the scallop distribution and enlighten the main known hotspots for the population,...
Tipo: Text
Palavras-chave: Population dynamic model; Ecophysiological model; English Channel; Pecten maximus; Spatial distribution.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00355/46642/46467.pdf