seanoe:79821 data@seanoe.org 2025-01-06 ISO 19115:2003/19139 1.0 Current distribution of the residual flat oysters beds (Ostrea edulis) along the west coast of France 2021-03 2025-01-06 Pouvreau Stephane, Cochet Hélène, Bargat Florian, Petton Sebastien, Le Roy Valerian, Guillet Theo, Potet Marine (2021). Current distribution of the residual flat oysters beds (Ostrea edulis) along the west coast of France. SEANOE. https://doi.org/10.17882/79821 In addition to properly cite this dataset, it would be appreciated that the following work(s) be cited too, when using this dataset in a publication : Pouvreau Stephane, Cochet Hélène, Fabien Aurélie, Arzul Isabelle, Lapegue Sylvie, Gachelin Sonia, Salaun Benoit (2021). Inventaire, diagnostic écologique et restauration des principaux bancs d’huitres plates en Bretagne : le projet FOREVER. Rapport final. Contrat FEAMP 17/2215675. https://doi.org/10.13155/79506 The flat oyster Ostrea edulis is a European native species that once covered vast areas in the North Sea, on the Atlantic coast and in other European coastal waters including the Mediterranean region. All these populations have been heavily fished by dredging over the last three centuries. More recently, the emergence of parasites combined with the proliferation of various predators and many human-induced additional stressors have caused a dramatic decrease in the last remaining flat oyster populations. Today, this species has disappeared from many locations in Europe and is registered on the OSPAR (Oslo-Paris Convention for the Protection of the Marine environment of the North-East Atlantic) list of threatened and/or declining species (see https://www.ospar.org/work-areas/bdc/species-habitats/list-of-threatened-declining-species-habitats). In that context, since 2018, the Flat Oyster REcoVERy project (FOREVER) has been promoting the reestablishment of native oysters in Brittany (France). This multi-partner project, involving the CRC (Comité Régional de la Conchyliculture), IFREMER (Institut Français de Recherche pour l’Exploitation de la Mer), ESITC (École Supérieure d’Ingénieurs des Travaux de la Construction) Caen and Cochet Environnement, has consisted of (1) inventorying and evaluating the status of the main wild flat oyster populations across Brittany, (2) making detailed analysis of the two largest oyster beds in the bays of Brest and Quiberon to improve understanding of flat oyster ecology and recruitment variability and to suggest possible ways of improving recruitment, and (3) proposing practical measures for the management of wild beds in partnership with members of the shellfish industry and marine managers. the final report of this project is available on Archimer : https://doi.org/10.13155/79506. This survey is part of the task 1 of the FOREVER, which took place between 2017-2021. Some previous data, acquired with the same methodology and within the same geographic area have been also added to this dataset. These data were collected during 30 intertidal and diving surveys in various bays and inlets of the coast of Bretagne. The localization of these surveys has been guided by the help of historical maps. In the field, the methodology was simple enough to be easily implemented regardless of the configuration of the sampled site. The intertidal survey was conducted at very low tide (tidal range > 100) to sample the 0-1m level. Sampling was carried out randomly or systematically following the low water line. Where possible (in terms of visibility and accessibility), dive surveys were also carried out (0-10m depth), along 100m transects, using the same methodology of counting in a 1m2 quadrat. As often as possible, geo-referenced photographs were taken to show the appearance, density and habitat where Ostrea edulis was present. All these pictures are available in the image bank file. Overall, this dataset contains a total of 300 georeferenced records, where flat oysters have been observed. The dataset file contains also information concerning the surrounding habitat description and is organized according the OSPAR recommendations. This publication gives also a map, under a kml format showing each occurrence and its characteristics. This work was done in the framework of the following research project: " Inventaire, diagnostic écologique et restauration des principaux bancs d’huitres plates en Bretagne : le projet FOREVER. Contrat FEAMP 17/2215675". POUVREAU Stephane Ifremer, France COCHET Hélène Cochet environnement, France Bargat Florian Littobs, France PETTON Sebastien Ifremer, France LE ROY Valerian Ifremer, France GUILLET Theo Ifremer, France POTET Marine Ifremer, France SEANOE https://www.seanoe.org/data/00686/79821/illustration.gif Young flat oyster fixed on rock at low tide in bay of Brest. Flat oyster beds OSPAR marine habitat Ostrea edulis French coast Fisheries and aquaculture Biological oceanography Environment Benthic habitats ODATIS aggregation parameters and Essential Variable names 2024-09-16 geonetwork.thesaurus.external.theme.NVS.OD1 Fisheries and aquaculture Biological oceanography Environment SeaDataNet Parameter Disciplines 2021-04-07 geonetwork.thesaurus.external.parameter.NVS.P08 /Observational data/in-situ Type de jeux de donnée ODATIS 2024-10-15 geonetwork.thesaurus.local.theme.type_jeux_donnee CC-BY-NC-SA (Creative Commons - Attribution, No commercial usage, Sharing under the same conditions) Prokaryotic microbiota outperform eukaryotic microbiota in differentiating between infection states of iconic diseases of two commercial oyster species 2025 Elsevier BV WEGNER K. MATHIAS MORGA BENJAMIN GUILLOU LAURE STRITTMATTER MARTINA LECADET CYRIELLE TRAVERS AGNES TOURBIEZ DELPHINE GERVAIS OPHELIE ARZUL ISABELLE 10.1016/j.aquaculture.2024.741363 Records reveal the vast historical extent of European oyster reef ecosystems 2024 Nature Research THURSTAN RUTH MCCORMICK HANNAH PRESTON JOANNE ASHTON ELIZABETH BENNEMA FLORIS BRATOŠ CETINIĆ ANA BROWN JANET CAMERON TOM DA COSTA FIZ DONNAN DAVID EWERS CHRISTINE FORTIBUONI TOMASO GALIMANY EVE GIOVANARDI OTELLO GRANCHER ROMAIN GRECH DANIELE HAYDEN-HUGHES MARIA HELMER LUKE JENSEN K JUANES JOSÉ LATCHFORD JANIE MOORE ALEC MOUTOPOULOS DIMITRIOS NIELSEN PERNILLE VON NORDHEIM HENNING ONDIVIELA BÁRBARA PETER CORINA POGODA BERNADETTE POULSEN BO POUVREAU STEPHANE ROBERTS CALLUM SCHERER CORDULA SMAAL AAD SMYTH DAVID STRAND ÅSA THEODOROU JOHN ZU ERMGASSEN PHILINE 10.1038/s41893-024-01441-4 Fifty years of research to counter the decline of the European flat oyster (Ostrea edulis): a review of French achievements and prospects for the restoration of remaining beds and revival of aquaculture production 2023 EDP Sciences POUVREAU STEPHANE LAPÈGUE SYLVIE ARZUL ISABELLE BOUDRY PIERRE 10.1051/alr/2023006 Flat Oyster RecoVERy in France (FOREVER) : the final report 2021 Ifremer POUVREAU STEPHANE COCHET HÉLÈNE FABIEN AURÉLIE ARZUL ISABELLE LAPEGUE SYLVIE GACHELIN SONIA SALAUN BENOIT 10.13155/79506 oceans -5.427246 -1.274414 46.701384 49.188105 IMAGE XLS, XLSX KML https://www.seanoe.org/data/00686/79821/ WWW:DOWNLOAD-1.0-link--download Raw data Images bank [RESTRICTED] - 357 MB https://www.seanoe.org/data/00686/79821/data/82624.xlsx WWW:DOWNLOAD-1.0-link--download Quality controlled data Forever data - 868 KB https://www.seanoe.org/data/00686/79821/ WWW:DOWNLOAD-1.0-link--download Quality controlled data KML file [RESTRICTED] - 1 MB https://doi.org/10.17882/79821 WWW:LINK-1.0-http--metadata-URL DOI of the product https://www.seanoe.org/data/00686/79821/ rel-canonical Seanoe