DOCSLIB.ORG

France): Respective Role of the Main Filter-Feeders

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
France): Respective Role of the Main Filter-Feeders Not to be cited without prior reference to the author ICES CM 2008/H:01 Studying the carrying capacity of Mont Saint Michel Bay (France): respective role of the main filter-feeders. Philippe Cugier 1, Caroline Struski 1, Michel Blanchard 1, Joseph Mazurié2, Stéphane Pouvreau 3, Frédéric Olivier 4. 1. IFREMER, Département Dynamiques de l’Environnement Côtier, laboratoire d’Ecologie Benthique, B.P. 70, 29280 Plouzané, France. Contact: [email protected] , Phone: +33 2-98-22-49-19, Fax: +33 2-98-22-45-48. 2. IFREMER, Laboratoire Environnement Ressources Morbihan-Pays de Loire, 12 rue des résistants, BP 86, 56470 La Trinité sur Mer, France. 3. IFREMER, Station expérimentale d’Argenton/Département de Physiologie des organismes marins, 11 presqu’île du vivier, 29840 Argenton-Landunvez, France. 4. Muséum National d’Histoire Naturel, Département Milieux et Peuplements Aquatiques, Station Marine de Dinard, UMR 5178 BOME, 17 av. George V, 35800 Dinard, France. Abstract The macrobenthic community in the bay of Mont-Saint-Michel (English Channel, France) is mainly dominated by filter-feeders, including cultivated species (oysters and mussels). The decline in farming production, along with the significant spreading of the invasive slipper limpet Crepidula fornicata (150.000 T), have led scientists and stakeholders to question about the trophic balance between cultivated and wild (native or invasive non- native) filter-feeders. An ecological model of the bay was developed, coupling a 2D hydro-sedimentary model (SiAM) and biological models for primary production and filter feeder filtration. The filter feeder model includes cultivated (mussels Mytilus edulis and oysters Crassostrea gigas and Ostrea edulis ), invasive ( Crepidula fornicata ) and wild native species ( Abra alba, Cerastoderma edule, Glycymeris glycymeris, Lanice conchilega , Macoma balthica, Paphia rhomboides, Sabellaria alveolata, Spisula ovalis ). The real distribution for each species was taken into account into the computational grid and individual filtration rates were imposed. For cultivated and invasive species, which represented the highest density levels, bio-deposition production was also computed in order to evaluate the role of these bio-deposits in re-stimulating chlorophyll levels. From 2008 to 2010, this model will be used by scientists and decision makers as a tool for exploring several scenarios of farming managements and/or environmental factor evolutions and their impacts on the ecosystem. Keywords : Ecosystem modelling, primary production, filter-feeders, Mont-Saint-Michel Bay. Introduction The Mont-Saint-Michel Bay (hereafter MSMB) is located in the western part of the English Channel along the French coast (figure 1). This bay is a large enclosed macrotidal area with an average tidal range of 10 m and a maximum one of 15 m and with a large intertidal zone covering 250 km². Three rivers flow in the eastern part of the bay, Sée, Sélune, Couesnon with average flow rate of 5, 9 and 11 m 3/s, respectively. Due to high tidal current, the water column is well mixed and no vertical stratification is therefore observed. The macrobenthic community in the bay is mainly dominated by filter-feeders and is typified by: (1) A very productive area for shellfish culture. The annual shellfish production is around 18.000 tons, with 12.000 tons of mussels (rank 1st in France) and 6000 tons of oysters. The annual economic benefits due to shellfish farming are more than 30 millions euros. Farming structures takes up the most part of the western bay (figure 1). (2) A massive propagation of an invasive gastropod, the slipper limpet Crepidula fornicata (Blanchard, 1997; Blanchard and Ehrhold, 1999) . The species is mainly located in the western part of the bay, north of the farming structures and show a high spreading velocity. Recent investigations revealed that the total biomass has increased of ca. 50% in eight years (figure 1) reaching 150.000 tons in 2004 (Blanchard, submitted). At the present time, the Crepidula biomass is the highest biomass among filter-feerders in the bay. (3) A large distribution of wild native community of filter-feeding species in the whole bay, showing densities of several hundred of individual per square meters (figure 2). In this context, from 2002 to 2007, the MSMB was the place of a French national program of coastal environment (PNEC), of which one main objective was to examine the carrying capacity of the bay. Questions were “how do all filter feeders share the primary production ? and how each main benthic compartment contributes to control the phytoplanktonic production ?”. To address these questions, an ecosystem model of the bay, coupling fine hydrodynamic, primary production and filter-feeders, has been developed. Materials and methods Model features A 2D hydrodynamic (SiAM model, Cugier and Le Hir, 2002) model was implemented in the Mont Saint Michel Bay. A 2D approach was used because of the strong mixing resulting from high tidal currents. This model solves the shallow water equations and coupled erosion- deposition processes in order to simulate the transport of cohesive sediment (Cayocca et al., 2008). This coupling allows realistic simulation of suspended matter very important for primary production modelling because it controls light attenuation in the water column. The computation grid is Cartesien and irregular (figure 3), allowing fine resolution in the coastal most part of the bay (200m) and rough resolution seawards (500m). This model was coupled with a classical primary production model taking account nutrient cycles and two phytoplankton groups, namely diatoms and non siliceous algae (including harmful flagellate species) and one zooplanktonic component, the diatom-grazer mesozooplankton (figure 4). The main equations have been previously described in Guillaud et al., 2000, Cugier et al., 2005. The benthic filter-feeder model is composed of: - 3 cultivated species: mussels ( Mytilus edulis ), European flat oyster ( Ostrea edulis ), Japanese oyster ( Crassostrea gigas ) - 1 invasive species ( Crepidula fornicata ) - 8 wild native species : Abra alba, Cerastoderma edule, Glycymeris glycymeris, Lanice conchilega , Macoma balthica, Paphia rhomboides, Sabellaria alveolata, Spisula ovalis For cultivated and invasive species, two main processes are considered: filtration and biodeposition (faeces and pseudofaeces). The first one contributes to deplete chlorophyll of the water column when the second one contributes to stimulate primary production because of organic matter deposition on the bottom. Filtration and egestion laws take account of environmental parameters such as water temperature or suspended matter concentration and are based on ecophysiological models previously published (Barillé, 1996, Barillé et al., 1997). Ecophysiological parameters for wild native filter-feeders are more difficult to find in literature. Often, only average filtration rates are available. Thus, only filtration process is considered for these species in this study. Table 1 gives references of the used filtration rate for each wild species as well as the value of the parameters. Boundary and initial conditions River boundary conditions (daily average for flows and monthly or bimonthly measurements for concentrations) were provided by Seine-Normandie water agency for Sée and Sélune and by Loire-Bretagne water agency for Couesnon. Meteorological data’s come from Météo- France local station. Harmonic components of tide at the sea boundary were provided by the Service Hydrographique et Oceanographique de la Marine (SHOM: French Navy Oceanographic Department). Finally, main seaward boundary concentrations came from the operational modelling of French Brittany coast, developed in the PREVIMER project (see website: www.previmer.org). Real densities of filter-feeders were inputted in each mesh of the computation grid after an interpolation process in Arcview GIS tool. Mussels and oysters densities came from French Maritime Administration cadastre. Crepidula fornicata and native wild filter-feeder data’s come from specific benthic campaigns done during the PNEC program. Role of the main filter-feeders in the control of phytoplanktonic production. To visualise and quantify the role played by benthic filter-feeders, scenarios were performed by running the model and removing each main benthic compartments one after each other. Maximum annual chlorophyll obtained for each of these scenarios was then compared to those of the reference case (e.g. with all filter-feeders). Five scenarios have been realised by removing respectively Crepidula fornicata , mussels, oysters, native wild filter feeders and all filter feeders of the bay. Resulted maps of annual maximum chlorophyll are compared with the reference one (figures 5 A-F). In order to spatially quantify the effect, the bay was splitted in 3 areas (figure 6) where annual maximum chlorophyll was spatially averaged: a western area called “Cancale area”, an eastern area called “Mont-Saint-Michel (MSM) area” and a northern one call “seaward area”. Increase (in %) of maximum chlorophyll relative to reference case was calculated for each areas and each scenarios (figure 6). Reference case Figure 5A showed the simulated annual maximum chlorophyll. Higher concentrations were observed in the eastern bay, with levels ranging from 10 to 15µg/l. The western bay was characterised by lower concentrations, less than 10µg/l for maximum values. In the shallower waters of the western bay the maximum chlorophyll remains lower
Load more

Recommended publications
  • Appendix to Taxonomic Revision of Leopold and Rudolf Blaschkas' Glass Models of Invertebrates 1888 Catalogue, with Correction
    http://www.natsca.org Journal of Natural Science Collections Title: Appendix to Taxonomic revision of Leopold and Rudolf Blaschkas’ Glass Models of Invertebrates 1888 Catalogue, with correction of authorities Author(s): Callaghan, E., Egger, B., Doyle, H., & E. G. Reynaud Source: Callaghan, E., Egger, B., Doyle, H., & E. G. Reynaud. (2020). Appendix to Taxonomic revision of Leopold and Rudolf Blaschkas’ Glass Models of Invertebrates 1888 Catalogue, with correction of authorities. Journal of Natural Science Collections, Volume 7, . URL: http://www.natsca.org/article/2587 NatSCA supports open access publication as part of its mission is to promote and support natural science collections. NatSCA uses the Creative Commons Attribution License (CCAL) http://creativecommons.org/licenses/by/2.5/ for all works we publish. Under CCAL authors retain ownership of the copyright for their article, but authors allow anyone to download, reuse, reprint, modify, distribute, and/or copy articles in NatSCA publications, so long as the original authors and source are cited. TABLE 3 – Callaghan et al. WARD AUTHORITY TAXONOMY ORIGINAL SPECIES NAME REVISED SPECIES NAME REVISED AUTHORITY N° (Ward Catalogue 1888) Coelenterata Anthozoa Alcyonaria 1 Alcyonium digitatum Linnaeus, 1758 2 Alcyonium palmatum Pallas, 1766 3 Alcyonium stellatum Milne-Edwards [?] Sarcophyton stellatum Kükenthal, 1910 4 Anthelia glauca Savigny Lamarck, 1816 5 Corallium rubrum Lamarck Linnaeus, 1758 6 Gorgonia verrucosa Pallas, 1766 [?] Eunicella verrucosa 7 Kophobelemon (Umbellularia) stelliferum
    [Show full text]
  • Plan Guide – Val Couesnon
    1 SOMMAIRE Méthodologie suivie dans la réalisation du diagnostic et du Plan-Guide ................................ 8 A. Analyses bibliographiques et visites de terrain ........................................................................................................ 7 B. Mise en place d’une concertation ..................................................................................................................................... 7 1. Les modalités de la concertation et leurs objectifs ............................................................................................. 7 2. Le questionnaire : ................................................................................................................................................................ 7 3. Les entretiens semi-directifs ......................................................................................................................................... 9 DIAGNOSTIC ...................................................................................................................................................... .10 SOMMAIRE DIAGNOSTIC ............................................................................................................................ .11 Introduction…………………………………………………………………………………… ................................. 13 I. Une démographie décroissante marquée par le vieillissement de la population ...... 15 A. Baisse démographique et réduction de la taille des ménages ........................................................................
    [Show full text]
  • Impact of Windfarm OWEZ on the Local Macrobenthos Communiy
    Impact of windfarm OWEZ on the local macrobenthos community report OWEZ_R_261_T1_20090305 R. Daan, M. Mulder, M.J.N. Bergman Koninklijk Nederlands Instituut voor Zeeonderzoek (NIOZ) This project is carried out on behalf of NoordzeeWind, through a sub contract with Wageningen-Imares Contents Summary and conclusions 3 Introduction 5 Methods 6 Results boxcore 11 Results Triple-D dredge 13 Discussion 16 References 19 Tables 21 Figures 33 Appendix 1 44 Appendix 2 69 Appendix 3 72 Photo’s by Hendricus Kooi 2 Summary and conclusions In this report the results are presented of a study on possible short‐term effects of the construction of Offshore Windfarm Egmond aan Zee (OWEZ) on the composition of the local benthic fauna living in or on top of the sediment. The study is based on a benthic survey carried out in spring 2007, a few months after completion of the wind farm. During this survey the benthic fauna was sampled within the wind farm itself and in 6 reference areas lying north and south of it. Sampling took place mainly with a boxcorer, but there was also a limited programme with a Triple‐D dredge. The occurrence of possible effects was analyzed by comparing characteristics of the macrobenthos within the wind farm with those in the reference areas. A quantitative comparison of these characteristics with those observed during a baseline survey carried out 4 years before was hampered by a difference in sampling design and methodological differences. The conclusions of this study can be summarized as follows: 1. Based on the Bray‐Curtis index for percentage similarity there appeared to be great to very great similarity in the fauna composition of OWEZ and the majority of the reference areas.
    [Show full text]
  • Role of Reef-Building, Ecosystem Engineering Polychaetes in Shallow Water Ecosystems
    diversity Review Role of Reef-Building, Ecosystem Engineering Polychaetes in Shallow Water Ecosystems Martín Bruschetti 1,2 1 Instituto de Investigaciones Marinas y Costeras (IIMyC)-CONICET, Mar del Plata 7600, Argentina; [email protected] 2 Laboratorio de Ecología, Universidad Nacional de Mar del Plata, FCEyN, Laboratorio de Ecología 7600, Argentina Received: 15 June 2019; Accepted: 15 September 2019; Published: 17 September 2019 Abstract: Although the effect of ecosystem engineers in structuring communities is common in several systems, it is seldom as evident as in shallow marine soft-bottoms. These systems lack abiotic three-dimensional structures but host biogenic structures that play critical roles in controlling abiotic conditions and resources. Here I review how reef-building polychaetes (RBP) engineer their environment and affect habitat quality, thus regulating community structure, ecosystem functioning, and the provision of ecosystem services in shallow waters. The analysis focuses on different engineering mechanisms, such as hard substrate production, effects on hydrodynamics, and sediment transport, and impacts mediated by filter feeding and biodeposition. Finally, I deal with landscape-level topographic alteration by RBP. In conclusion, RBP have positive impacts on diversity and abundance of many species mediated by the structure of the reef. Additionally, by feeding on phytoplankton and decreasing water turbidity, RBP can control primary production, increase light penetration, and might alleviate the effects of eutrophication
    [Show full text]
  • Effects of a Commercial Mussel Mytilus Edulis Lay on a Sublittoral, Soft Sediment Benthic Community
    MARINE ECOLOGY PROGRESS SERIES Vol. 282: 185–191, 2004 Published November 16 Mar Ecol Prog Ser Effects of a commercial mussel Mytilus edulis lay on a sublittoral, soft sediment benthic community Julie Smith*, Susan E. Shackley School of Biological Sciences, University of Wales Swansea, Singleton Park, Swansea SA2 8PP, UK ABSTRACT: A commercial mussel Mytilus edulis lay was established in 1998 in western inner Swansea Bay (Wales, UK) in a shallow, sublittoral, high tidal energy environment, on a substrate which previously supported a diverse inshore, sand/muddy sand benthic community. Within a year of commencement of this fishery, a significant change in the species composition of the benthic com- munity occurred, with a decrease in the number of species and in the total number of individuals. The abundance of carnivorous and deposit feeding benthic species increased, whilst the mussels out- competed other benthic filter feeding organisms, preventing the settlement of these organisms by ingestion of the larvae, and removed other benthic organisms by physical smothering. KEY WORDS: Mussel lay · Benthos · Community effects · Coastal waters Resale or republication not permitted without written consent of the publisher INTRODUCTION Swansea Bay is a high-energy embayment, located on the northern coastline of the Bristol Channel, with Mussels Mytilus edulis L. are of growing commercial maximum depths of 20 m relative to chart datum (CD) importance, with increased numbers of applications for and an extensive, low gradient intertidal zone (Fig. 1). permission to site commercial mussel lays around the The tidal current takes the form of a rectilinear, revers- UK coast in shallow, sheltered, inshore environments.
    [Show full text]
  • Linking Microbial Communities and Macrofauna Functional Diversity With
    Linking microbial communities and macrofauna functional diversity with benthic ecosystem functioning in shallow coastal sediments, with an emphasis on nitrifiers and denitrifiers By Maryam Yazdani Foshtomi Promotors: Prof. Dr. Jan Vanaverbeke Prof. Dr. Magda Vincx Prof. Dr. Anne Willems Academic year 2016-2017 Thesis submitted in partial fulfillment of the requirements for the degree of Doctor of Science: Marine Sciences Members of reading and examination committee Prof. Dr. Olivier De Clerck: Chairman Ghent University, Gent, Belgium Prof. Dr. Tom Moens: Secretary Ghent University, Gent, Belgium Prof. Dr. Nico Boon Ghent University, Gent, Belgium Dr. Melanie Sapp Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany Prof. Dr. Frederik Leliaert Botanic Garden, Meise, Belgium Ghent University, Gent, Belgium Prof. Dr. Steven Degraer Royal Belgian Institute of Natural Sciences (RBINS), Brussels, Belgium Ghent University, Gent, Belgium Prof. Dr. Sofie Derycke Royal Belgian Institute of Natural Sciences (RBINS), Brussels, Belgium Ghent University, Gent, Belgium Prof. Dr. Jan Vanaverbeke (Promotor) Royal Belgian Institute of Natural Sciences (RBINS), Brussels, Belgium Ghent University, Gent, Belgium Prof. Dr. Magda Vincx (Promotor) Ghent University, Gent, Belgium Prof. Dr. Anne Willems (Promotor) Ghent University, Gent, Belgium ACKNOWLEDGEMENTS I am deeply indebted to all my family: my lovely spouse, Mehrshad; my dearest mother and father; my siblings especially my sister, Gilda; and my in-laws for their love and support at any conditions. I would like to express my appreciation to my promotors, Prof. Magda Vincx, Prof. Jan Vanaverbeke and Prof. Anne Willems for their help and support during my PhD. It was a great honour to work under their supervision. I would like to thank all members of reading and examination committee (Prof.
    [Show full text]
  • Tube-Forming Polychaetes Enhance Invertebrate Diversity and Abundance in Sandy Sediments of Mozambique, Africa
    African Journal of Marine Science 2011, 33(2): 327–332 Copyright © NISC (Pty) Ltd Printed in South Africa — All rights reserved AFRICAN JOURNAL OF MARINE SCIENCE ISSN 1814–232X EISSN 1814–2338 doi: 10.2989/1814232X.2011.600433 Short Communication Tube-forming polychaetes enhance invertebrate diversity and abundance in sandy sediments of Mozambique, Africa MS Thomsen1,2*, MF Muth3 and KJ McGlathery3 1 Marine Department, National Environmental Research Institute, University of Aarhus, PO Box 4000, Roskilde, Denmark 2 School of Plant Biology, University of Western Australia, Crawley 6009 WA, Australia 3 Department of Environmental Sciences, University of Virginia, 291 McCormick Rd, Clark Hall, Charlottesville, VA 22904, USA * Corresponding author, e-mail: [email protected] Manuscript received March 2011; accepted May 2011 In marine soft-bottom systems, polychaetes can increase habitat complexity by constructing rigid tubes (e.g. several onuphid species) that contrast with surrounding topographically flat sediments. These structures can provide predation refuges and increase larval settlement and thereby increase the richness and abundance of fauna. We collected invertebrate samples from an intertidal flat with low onuphid tube density (2.7 m–2) in Mozambique and document that more organisms (70 times higher mollusc abundances) and more species (15 times more mollusc species) were found associated with solitary tubes of an onuphid polychaete compared with surrounding sand habitats. These results are in agreement with tube versus sand comparisons from soft-bottom systems in the North Atlantic where polychaete tube densities are often much higher. Keywords: habitat formation, onuphid polychaete, species richness, western Indian Ocean Introduction Species that form or modify habitat, often referred to as (Thomsen et al.
    [Show full text]
  • Processing of 13C-Labelled Phytoplankton in a Fine-Grained Sandy-Shelf Sediment (North Sea): Relative Importance of Different Macrofauna Species
    MARINE ECOLOGY PROGRESS SERIES Vol. 297: 61–70, 2005 Published August 1 Mar Ecol Prog Ser Processing of 13C-labelled phytoplankton in a fine-grained sandy-shelf sediment (North Sea): relative importance of different macrofauna species Anja Kamp1, 2,*, Ursula Witte1, 3 1Max Planck Institute for Marine Microbiology, Celsiusstr. 1, 28359 Bremen, Germany 2Present address: Institute for Microbiology, University of Hannover, Schneiderberg 50, 30167 Hannover, Germany 3Present address: Oceanlab, University of Aberdeen, Newburgh, Aberdeen AB41 6AA, UK ABSTRACT: On-board and in situ experiments with 13C-labelled diatoms were carried out to inves- tigate the processing of algal carbon by the macrofauna community of a fine sandy-shelf site in the southern German Bight (North Sea). The time series (12, 30, 32 and 132 h incubations) was supple- mented by additional laboratory experiments on the role of the dominant macrofauna organism, the bivalve Fabulina fabula (Bivalvia: Tellinidae), for particulate organic matter subduction to deeper sediment layers. The specific uptake of algal 13C by macrofauna organisms was visible after 12 h and constantly increased during the incubation periods. F. fabula, a facultative (surface) deposit- and suspension-feeder, Lanice conchilega (Polychaeta: Terebellidae), a suspension-feeder and the (sur- face) deposit-feeder Echinocardium cordatum (Echinodermata: Spatangidae) were responsible for the majority of macrofaunal carbon processing. Predatory macrofauna organisms like Nephtys spp. (Polychaeta: Nephtyidae) also quickly became labelled. The rapid subduction of fresh organic matter by F. fabula down to ca. 4 to 7 cm sediment depth could be demonstrated, and it is suggested that entrainment by macrofauna in this fine-grained sand is much more efficient than advective transport.
    [Show full text]
  • Sediment Budget and Morphological Evolution in the Bay of Mont-Saint-Michel (Normandy, France): Aerial (LIDAR) and Terrestrial Laser Monitoring
    Littoral 2010, 12007 (2011) DOI:10.1051/litt/201112007 © Owned by the authors, published by EDP Sciences, 2011 Sediment budget and morphological evolution in the Bay of Mont-Saint-Michel (Normandy, France): aerial (LIDAR) and terrestrial laser monitoring Gluard Lucile1, [email protected] Levoy Franck1, Bretel Patrice1, Monfort Olivier1, 1 Morphodynamique Continentale et Côtière UMR6143 Université de Caen – CNRS 2-4, rue des Tilleuls – 14 000 CAEN - FRANCE Abstract We propose a study on the use of laser techniques to monitor altimetric variations in the tidal flat of the Bay of Mont-Saint-Michel. The Bay of Mont-Saint-Michel has been strongly anthropised. Because of impoldering, wandering rivers were not able to sap salt-meadow and modern tidal flooding of the Mont-Saint-Michel has lowered. Through modern studies and projects aimed at restoring the marine nature of the bay it appears that flushes are useful to discard sediment tending to silt the bay. The major aim of our work consists in the better understanding of the effect of the dam built recently (May 2009) in that purpose. Laser scanning is commonly used for topographic surveys and the generation of Digital Elevation Model (DEM). Repeating surveys, allow to quantify topographic changes and therefore sediment budgets. Our study is based on aerial topographic surveys of the intertidal zone acquired before the operational start up of the dam (in 1997, 2002, 2007 and February 2009). Sediment budgets computations confirm that the bay tends to accrete but at annual rates quite variable in time. The value computed between 2002 and 2007 is 2.3 times and 3.5 times smaller than the deposition rates computed for the 1997/2002 and 2007/2009 periods.
    [Show full text]
  • Cppmsm-Anglais.Pdf
    TOURIST INFORMATION THE MONT-SAINT-MICHEL CENTRE AN ISLAND ONCE MORE The Tourist Information Centre is in the car park, just opposite the Welcome A dam built at the mouth of the river Couesnon now regulates the shuttle bus stop. Staff are on hand all year round to answer your TO THE MONT-SAINT-MICHEL ebb and flow of the water and, since it came into operation in May questions about the Mont-Saint-Michel and its Bay, as well as 2009, all the silt and sand out to sea, far from the Mont-Saint-Michel. Normandy and Brittany regions in general. Come and get your bearings In addition to this role, the dam is itself a work of art, that blends and find out everything you need to know to get the most out of your unobtrusively into the approach to the Mont-Saint-Michel and is open trip to the Mont-Saint-Michel, a UNESCO world heritage site. to the public. As part of the programme to restore the site’s maritime character, visitor access to the Mont-Saint-Michel has been completely redesigned, and is now via a new 1085 metre dyke built slightly to the east, followed finally by a 760 metre long walkway bridge. OPENING TIMES High Season (easter - september 30th) mon-sun, 09:00 am - 7:00 pm Petits Points Communication pour PRN Caen-Carpiquet DOC 78 - 20/03/2018 Crédit photo : Thomas Jouanneau / Thinkstock CPPMSM Réalisation Trois Low Season (all other times) mon-sun, 10:00 am - 6:00 pm Closed 25/12 and 01/01 SERVICES BABY CHANGE ROOM Open 24/7.
    [Show full text]
  • Marine Biodiversity: a Science Roadmap for Europe II Marine Biodiversity: a Science Roadmap for Europe
    marine board future science brief #1 Marine Biodiversity: A Science Roadmap for Europe II marine biodiversity: a science roadmap for europe European Marine Board The Marine Board provides a pan-European platform for its member organizations to develop common priorities, to advance marine research, and to bridge the gap between science and policy in order to meet future marine science challenges and opportunities. The Marine Board was established in 1995 to facilitate enhanced cooperation be- tween European marine science organizations towards the development of a com- mon vision on the research priorities and strategies for marine science in Europe. Members are either major national marine or oceanographic institutes, research funding agencies, or national consortia of universities with a strong marine re- search focus. In 2012, the Marine Board represents 34 Member Organizations from 20 countries. The Board provides the essential components for transferring knowl- edge for leadership in marine research in Europe. Adopting a strategic role, the Ma- rine Board serves its member organizations by providing a forum within which ma- rine research policy advice to national agencies and to the European Commission is developed, with the objective of promoting the establishment of the European Marine Research Area. www.marineboard.eu Authors: C. Heip & N. McDonough Additional contribution from: K. Gjerde Infoboxes: J.B. Calewaert, K. Larkin and N. McDonough Additional editorial comments: F. Boero and J. Mees The content of this document has been subject to internal review, editorial support and approval by the Marine Board member organizations (shown on the back cover). External Review by: Kristina M. Gjerde Senior High Seas Advisor IUCN Global Marine and Polar Programme Paul Snelgrove Canada Research Chair in Boreal and Cold Ocean Systems Ocean Sciences Centre and Biology Department Memorial University of Newfoundland Suggested reference: Heip, C.
    [Show full text]
  • Discovery of Sabellaria Spinulosa Reefs in an Intensively fished Area of the Dutch Continental Shelf, North Sea T ⁎ Karin J
    Journal of Sea Research 144 (2019) 85–94 Contents lists available at ScienceDirect Journal of Sea Research journal homepage: www.elsevier.com/locate/seares Discovery of Sabellaria spinulosa reefs in an intensively fished area of the Dutch Continental Shelf, North Sea T ⁎ Karin J. van der Reijdena, , Leo Koopb, Sarah O'Flynnc, Silvia Garciad, Oscar Bose, Christiaan van Sluisf, David J. Maaholmd, Peter M.J. Hermang,h, Dick G. Simonsb, Han Olffa, Tom Ysebaertc,e, Mirjam Snellenb, Laura L. Goversa,i, Adriaan D. Rijnsdorpe,j, Ricardo Aguilard a Conservation Ecology Group, Groningen Institute for Evolutionary Life Sciences, University of Groningen, P.O. Box 11103, 9700 CC Groningen, the Netherlands b Acoustics Group, Delft University of Technology, 2629 HS Delft, the Netherlands c NIOZ Royal Netherlands Institute for Sea Research, Department of Estuarine & Delta Systems, Utrecht University, P.O. Box 140, 4400 AC Yerseke, the Netherlands d OCEANA Europe, Gran Via 59, 28013 Madrid, Spain e Wageningen Marine Research, P.O. Box 68, 1970 AB IJmuiden, the Netherlands f The North Sea Foundation, P.O. Box 1578, 3500 BN Utrecht, the Netherlands g DELTARES, P.O. Box 177, 2600 MH Delft, the Netherlands h Delft University of Technology, Hydraulic Engineering, 2629 HS Delft, the Netherlands i NIOZ Royal Netherlands Institute for Sea Research, Department of Coastal Systems, Utrecht University, PO Box 59, 1790 AB Den Burg, the Netherlands j Aquaculture and Fisheries Group, Wageningen University, P.O. Box 338, 6700 AH Wageningen, the Netherlands ARTICLE INFO ABSTRACT Keywords: The tube-building polychaete Sabellaria spinulosa (Ross worm) can form conspicuous biogenic reefs that stabilize Biogenic Reef the seabed and increase biodiversity by providing a habitat for a multitude of other species.
    [Show full text]