Doremus, G. and H. Peltier2025OBIS-SEAMAP1403Version 2.1.0vector digital datahttps://seamap.env.duke.edu/dataset/1403OBIS-SEAMAPhttps://doi.org/10.82144/c7d01c61 Since 2003, the Observatoire PELAGIS (La Rochelle University) participated to annual halieutic surveys, led by the IFREMER, to collect data on the distribution of marine top predators in order to estimate their relative abundance and preferred habitats in the Bay of Biscay, the Channel and the North Sea. Each year, three observers take place on board the vessel “Thalassa” to record sightings of seabirds, marine mammals, large fish and fishing boats, from dawn to dusk. Following distance sampling methods, visual censuses are made by two observers (while the third observer is resting) from the upper platform of the boat (min. 14m above the sea level). They are placed on each side of the deck, looking ahead for marine predator with an angle of 180°. For each sighting, the species and the number of individuals are recorded, as well as the behaviour, distance and angle (upon request).One of the main advantages of this survey lays in its ecosystemic approach, which provides information on all the components of the food web (from planktonic organisms to predators) as well as data on the environmental parameters (sea surface temperature, salinity…). Interactions between prey and predators are complex in marine ecosystems, which are submitted to strong spatio-temporal variations. Thanks to ecosystem-based surveys, observed distributions and densities of marine predators can be related to the occurrence of their prey, providing to scientists and managers a better understanding of the marine ecosystems structure.[2022-10-20] The records on 2016-09-21 got the longitude sign swapped. they are corrected. [2022-01-18] Data in 2020 and 2021 were appended. [2018-04-26] Data in 2016 and 2017 were appended. Time and group size of the sightings are not available online. They may be released upon request.2003052920211205ground conditionCompleteNone plannedFrance-11.29278947.358355.280026-25.61275 NoneMarine Animal SurveyMarine BiologySeabirdsMarine mammalsCetaceansSea turtlesElasmobranchiiVisual SightingVesselNoneFranceNortheast AtlanticTaxon coveredMarine mammalsseabirdsSea turtlesRays and sharksIntegrated Taxonomic Information SystemUnknownNot applicableDownloaded April, 2004http://www.itis.usda.gov/Refer to the contact information of the datasetRefer to the contact information of the datasetmailing and physical address

Refer to the contact information of the dataset

Refer to the contact information of the datasetRefer to the contact information of the datasetRefer to the contact information of the datasetRefer to the contact information of the datasetNot providedIdentified by observers or researchers conducting the surveyKingdomAnimaliaPhylumChordataSubphylumVertebrataClassAvesOrderCharadriiformesFamilyAlcidaeGenusAlcaSpeciesAlca tordaGenusAlleSpeciesAlle alleGenusCepphusSpeciesCepphus grylleGenusFraterculaSpeciesFratercula arcticaGenusUriaSpeciesUria aalgeFamilyLaridaeGenusChlidoniasSpeciesChlidonias hybridaSpeciesChlidonias nigerGenusChroicocephalusSpeciesChroicocephalus ridibundusSpeciesGelochelidon niloticaSpeciesHydrocoloeus minutusSpeciesIchthyaetus melanocephalusGenusLarusSpeciesLarus argentatusSpeciesLarus cachinnansSpeciesLarus canusSpeciesLarus fuscusSpeciesLarus hyperboreusSpeciesLarus marinusSpeciesLarus michahellisGenusOnychoprionSpeciesOnychoprion anaethetusGenusRissaSpeciesRissa tridactylaGenusSternaSpeciesSterna dougalliiSpeciesSterna hirundoSpeciesSterna paradisaeaSpeciesSternula albifronsGenusThalasseusSpeciesThalasseus sandvicensisGenusXemaSpeciesXema sabiniFamilyStercorariidaeGenusStercorariusSpeciesStercorarius longicaudusSpeciesStercorarius parasiticusSpeciesStercorarius pomarinusSpeciesStercorarius skuaOrderProcellariiformesFamilyProcellariidaeGenusCalonectrisSpeciesCalonectris diomedeaGenusFulmarusSpeciesFulmarus glacialisGenusPuffinusSpeciesPuffinus gravisSpeciesPuffinus griseusSpeciesPuffinus mauretanicusSpeciesPuffinus puffinusSpeciesPuffinus yelkouanFamilyHydrobatidaeGenusHydrobatesSpeciesHydrobates leucorhousSubfamilyHydrobatinaeGenusHydrobatesSpeciesHydrobates pelagicusSubfamilyOceanitinaeGenusOceanitesSpeciesOceanites oceanicusFamilyDiomedeidaeGenusThalassarcheSpeciesThalassarche melanophrisOrderAnseriformesFamilyAnatidaeSubfamilyAnatinaeGenusMelanittaSpeciesMelanitta nigraOrderSuliformesFamilySulidaeGenusMorusSpeciesMorus bassanusFamilyPhalacrocoracidaeGenusPhalacrocoraxSpeciesPhalacrocorax aristotelisSpeciesPhalacrocorax carboOrderPhaethontiformesFamilyPhaethontidaeGenusPhaethonClassChondrichthyesSubclassElasmobranchiiSuperorderEuselachiiOrderLamniformesFamilyAlopiidaeGenusAlopiasSpeciesAlopias vulpinusFamilyCetorhinidaeGenusCetorhinusSpeciesCetorhinus maximusFamilyLamnidaeGenusLamnaSpeciesLamna nasusOrderMyliobatiformesFamilyDasyatidaeGenusDasyatisFamilyMobulidaeGenusMobulaSpeciesMobula mobularOrderCarcharhiniformesFamilyCarcharhinidaeGenusPrionaceSpeciesPrionace glaucaClassMammaliaSubclassTheriaInfraclassEutheriaOrderCetaceaSuborderMysticetiFamilyBalaenopteridaeGenusBalaenopteraSpeciesBalaenoptera acutorostrataSpeciesBalaenoptera physalusGenusMegapteraSpeciesMegaptera novaeangliaeSuborderOdontocetiFamilyDelphinidaeGenusDelphinusSpeciesDelphinus delphisGenusGlobicephalaSpeciesGlobicephala melasGenusGrampusSpeciesGrampus griseusGenusOrcinusSpeciesOrcinus orcaGenusPeponocephalaSpeciesPeponocephala electraGenusStenellaSpeciesStenella coeruleoalbaSpeciesStenella longirostrisGenusTursiopsSpeciesTursiops truncatusFamilyHyperoodontidaeGenusMesoplodonSpeciesMesoplodon densirostrisGenusZiphiusSpeciesZiphius cavirostrisFamilyPhocoenidaeGenusPhocoenaSpeciesPhocoena phocoenaFamilyPhyseteridaeGenusPhyseterSpeciesPhyseter macrocephalusOrderChiropteraOrderCarnivoraSuborderCaniformiaFamilyPhocidaeGenusHalichoerusSpeciesHalichoerus grypusGenusPhocaSpeciesPhoca vitulinaClassReptiliaOrderTestudinesSuborderCryptodiraSuperfamilyChelonioideaFamilyCheloniidaeSubfamilyCarettinaeGenusCarettaSpeciesCaretta carettaFamilyDermochelyidaeGenusDermochelysSpeciesDermochelys coriaceaClassActinopterygiiSubclassNeopterygiiInfraclassTeleosteiSuperorderAcanthopterygiiOrderPerciformesSuborderScombroideiFamilyScombridaeSubfamilyScombrinaeGenusThunnusSubgenusThunnus (Thunnus)SpeciesThunnus alalunga Open public unless otherwise noted. See Use Constraints for details. 1. Not to use data obtained from OBIS-SEAMAP in any publication, product, or commercial application without proper attribution to the original data provider(s) and OBIS-SEAMAP unless the datasets are explicitly shown under the CC0 policy. Citations or credits are suggested as attribution. If the data you downloaded come from multiple datasets, a citation or credit to each of the datasets is required. Suggested citation for this dataset: Doremus, G. and H. Peltier. 2025. Observatoire Pelagis boat surveys 2003-2021. Version 2.1.0. Dataset published in OBIS-SEAMAP. Data accessed on yyyy-mm-dd from https://seamap.env.duke.edu/dataset/1403. Suggested citation for OBIS-SEAMAP: Halpin, P.N., A.J. Read, E. Fujioka, B.D. Best, B. Donnelly, L.J. Hazen, C. Kot, K. Urian, E. LaBrecque, A. Dimatteo, J. Cleary, C. Good, L.B. Crowder, and K.D. Hyrenbach. 2009. OBIS-SEAMAP: The world data center for marine mammal, sea bird, and sea turtle distributions. Oceanography 22(2):104-115 2. To forward the citation of any publication / report that made use of the data / tools provided by OBIS-SEAMAP for inclusion in our list of references. 3. Not to hold OBIS-SEAMAP or the original data providers liable for errors in the data. While we have made every effort to ensure the quality of the database, we cannot guarantee the accuracy of these datasets. 4. The burden for determining fitness for use of the downloaded data for any analyses lies entirely with the user. OBIS-SEAMAP or the original data providers do not support outcomes of your analyses that used the data you downloaded from OBIS-SEAMAP. 5. To consider inclusion of the accompanying transect (effort) dataset if available into the methodology of your analyses. 6. Not to redistribute the data you downloaded from OBIS-SEAMAP through any media without contect from OBIS-SEAMAP and the original data providers unless the datasets are explicitly shown under the CC0 policy. Ghislain Doremus; Hélène PeltierObservatoire Pelagis UMS 3462, University La Rochelle - CNRS; Observatoire PELAGIS, UMS 3462, University La Rochelle-CNRS mailing and physical address

n/a; 5, allées de l

n/a; 17000 La Rochellen/a; Francen/a; n/an/a; n/a n/a; n/agdoremus@univ-lr.fr; hpeltier@univ-lr.fr Observatoire PELAGIS UAR 3462, University La Rochelle - CNRS Relational database Doremus, G. and H. Peltier2025vector digital dataOBIS-SEAMAP1403https://doi.org/10.15468/7z4bg9 All attributes were measured and recorded during the survey and validated by the data provider. Permissible values for date and time and coordinates were validated by the data provider and the OBIS-SEAMAP data manager. Species identification by the data provider was matched with Integrated Taxonomic Information System. All observation records are included.Data were put through the OBIS-SEAMAP data registration steps.20250417Point 1e-061e-06Decimal degrees D_WGS_1984WGS_1984 6378137.000000298.257224 Biogeographic dataBiogeographic dataNot applicableoidUnique ID number (generated by OBIS-SEAMAP)Data providerUnique ID number (generated by OBIS-SEAMAP)cdnomdefinition not providedData providerdefinition not providedlatitudeLatitude in decimal degreesData provider-25.612750055.2800260longitudeLongitude in decimal degreesData provider-11.292789047.3583000speciesSpecies name recordedData providerSpecies name recordedsp_tsnTaxonomic Serial Number added by OBIS-SEAMAPData provider0997851surveySurvey nameData providerSurvey nameobserverObserver nameData providerObserver namedata_producerData producerData providerData producerdata_administratorData administratorData providerData administratorobs_dateDate of the observation (time is not available)Data provider2003-05-292021-12-05areaAreaData providerAreaobs_timeTime of the observation is not availableData providerTime of the observation is not availableobs_countGroup size is not available.Data providerGroup size is not available.geomGeometry field added by OBIS-SEAMAPData providerGeometry field added by OBIS-SEAMAPThis section explains attributes included in the original dataset. OBIS-SEAMAP restricts the attributes available to the public to date/time, lat/lon and species names/counts only. Should you need other attributes described here, you are encouraged to contact the data provider.Observatoire PELAGIS UAR 3462 University La Rochelle - CNRS Nicholas School of Environment, Duke Univ. OBIS-SEAMAP mailing and physical address

A328, LSRC

DurhamNC27708USA 919-613-8021 seamap-contact@duke.edu OBIS-SEAMAP Dataset ID 1403Not to hold OBIS-SEAMAP liable for errors in the data. While we have made every effort to ensure the quality of the database, we cannot guarantee the accuracy of these datasets. Also please refer to Use Constraints. CSV and ESRI shapefile OBIS-SEAMAP Free Go to the OBIS-SEAMAP web site. 2025072920250729 Ei Fujioka Nicholas School, Duke Universitymailing and physical address

A328, LSRC

DurhamNC27708USA 919-613-8021 seamap-contact@duke.edu FGDC Content Standards for Digital Geospatial MetadataFGDC-STD-001-1998local time http://www.nbii.gov/Biological Data Profile