Pool, M. and M. de Boer2026Version 1.0.0vector digital dataOBIS-SEAMAP2382https://seamap.env.duke.edu/dataset/2382OBIS-SEAMAPhttps://doi.org/10.82144/5eaef01c The Marine Spatial Planning (MSP) project in Suriname was initiated in 2017. Part of this EU-funded project focussed on collecting all the information regarding marine megafauna within the region (Suriname and Guyana). As part of the MSP project, Green Heritage Fund Suriname conducted two dedicated (effort-related) cetacean surveys (where information on survey effort, environmental conditions and GPS tracks are available) off Suriname in 2021. The first survey was carried out in May using a fishing trawler as the research vessel. The second survey took place in September using a catamaran as the research vessel. We emphasize that more systematic at-sea surveys, photo-identification, and behavioural studies are needed to assess the status of all cetaceans and to develop effective regionally and nationally specific conservation measures, not only in Suriname waters but within the Guiana Basin as a whole.These research activities gain a better understanding about the occurrence, distribution, and ecology of beaked whales within the Guiana Basin. The Demerara Plateau may well offer an important habitat for deep-diving cetaceans, but further research is needed. We emphasize that, in light of a recent increase in oil and gas exploitation activities, there is an urgency to develop effective regionally and nationally specific conservation measures for whales in Suriname.Accuracy of time varies record by record. '00:00' indicates the time is not available. 2021052120210927ground condition CompleteNone planned North Atlantic Ocean-56.2202-54.25519.11936.77652 NoneMarine Animal SurveyMarine BiologyMarine mammalsVisual SightingVesselNoneNorth Atlantic OceanSurinameTaxon coveredMarine mammalsIntegrated 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 surveyKingdomAnimaliaPhylumChordataSubphylumVertebrataClassMammaliaSubclassTheriaInfraclassEutheriaOrderCetaceaSuborderOdontocetiFamilyDelphinidaeGenusDelphinusSpeciesDelphinus delphisGenusPseudorcaSpeciesPseudorca crassidensGenusStenellaSpeciesStenella frontalisSpeciesStenella longirostrisGenusStenoSpeciesSteno bredanensisGenusTursiopsSpeciesTursiops truncatusFamilyHyperoodontidaeGenusMesoplodonSpeciesMesoplodon europaeus 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: Pool, M. and M. de Boer. 2026. Dedicated boat-based surveys for marine megafauna off Suriname in 2021. Version 1.0.0. Dataset published in OBIS-SEAMAP. Data accessed on yyyy-mm-dd from https://seamap.env.duke.edu/dataset/2382. 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. Marijke de Boer; Monique PoolWageningen Marine Research, University of Wageningen; Green Heritage Fund of Suriname mailing and physical address 1780 AB Den Helder; ParamariboThe Netherlands; Suriname

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n/a; Paramaribon/a; n/a marijkedeboer@hotmail.com; monique@greenfundsuriname.orgn/a; 597 437533 Marijke N. de Boer Relational database De Boer MN, van den Bergh M, Pool M, Willems T2023vector digital dataCheckList19 (2): 209–214https://doi.org/10.15560/19.2.209Halpin, 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. Hyrenbach2009Oceanography22(2):104-115 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.20260223Point 1e-051e-05Decimal degrees D_WGS_1984WGS_1984 6378137.000000298.257224 Biogeographic dataBiogeographic dataNot applicableoidUnique ID number (generated by OBIS-SEAMAP)Data provider120database_ref_newDatabase reference numberData provider1008010099survey_sighting_numberSurvey Sighting numberData providerSurvey Sighting numbersurvey_codeSurvey codeData providerSurvey codecompanyCompanyData providerCompanycountryCountryData providerCountrytimezoneTime zone (UTC)Data providerTime zone (UTC)date_time_utcDate and time in UTCData provider2021-05-22 00:00:002021-09-27 07:55:00date_timeDate and time of observation at local time zoneData provider2021-05-21 21:00:002021-09-27 04:55:00end_timeEnd time in UTCData provider00:00:0020:39:00methodMethodData providerMethodobserver_codeObserver CodeData providerObserver CodelatitudeLatitude in decimal degreesData provider6.7765209.119300longitudeLongitude in decimal degreesData provider-56.220200-54.255100water_depthWater Depth (m)Data providerWater Depth (m)vesselnameVessel nameData providerVessel nameeye_heightEye Height (m)Data providerEye Height (m)vesseltypeVessel typeData providerVessel typespeciesSpecies nameData providerSpecies namelatin_nameSpecies latin nameData providerSpecies latin namesp_tsnTaxonomic Serial Number added by OBIS-SEAMAPData provider159786770799certaintyCertaintyData providerCertaintyradial_distanceDistance (m) - radial distanceData provider2750bearingBearing (360 compas)Data provider0340total_number_of_animalsTotal number of animalsData provider120adultNumber of adultsData provider110juvNumber of JuvenilesData provider314calfNumber of calvesData provider11behaviourAnimal behaviorData providerAnimal behaviortravelTravelData providerTraveldirecion_of_travelDirecion of travelData providerDirecion of traveldescription_of_animalDescription of animalData providerDescription of animalnotesNotesData providerNotesgeomGeometry field added by OBIS-SEAMAPData providerGeometry field added by OBIS-SEAMAPThis section explains attributes included in the original dataset. The availability of the attributes depends on the share policy. When "Minimum attributes" is selected, only date/time, lat/lon, species identification and group size are available. Should you need other attributes described here, you are encouraged to contact the data provider. When "All attributes" is selected, all attributes are available in download.Marijke N. de Boer 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 2382Not 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. 2026022620260226 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