Dias, L. and L. Garrison20261.0.0vector digital dataOBIS-SEAMAP2373https://seamap.env.duke.edu/dataset/2373OBIS-SEAMAPhttps://doi.org/10.82144/45674eb3 As part of the Atlantic Marine Assessment Program for Protected Species (AMAPPS), the Southeast Fisheries Science Center (SEFSC) conducted a shipboard survey of the U.S. waters of the Western North Atlantic (WNA) from approximately the 200m isobath out to the U.S. Exclusive Economic Zone (EEZ). The survey was conducted between June 12 and September 5, 2021 onboard the NOAA Ship Gordon Gunter, split into three survey legs. Due to the COVID-19 pandemic, the scientific staff sheltered-in-place (SIP) before the start of the survey and before leg 3. Multiple days were lost due to mechanical problems with the ship and unfavorable weather conditions. The final portion of this survey transited through the Gulf of America (formerly Gulf of Mexico). The survey was designed for a two-team independent visual observer approach with distance sampling to estimate the detection probabilities for marine mammal sightings. A sighting constituted a single or group of marine mammals (whales and dolphins) seen at the same location and time. This dataset includes marine mammal visual observation data and effort points with surveying conditions that can be used in abundance and density modeling per visual line-transect survey protocols. This dataset also includes opportunistic marine mammal photographs and non-marine mammal sightings such as sea turtles. Sea bird observers conducted counts of all birds detected within a 300m strip transect from the ship during all legs of the survey (see additional references and data below). The scientific echosounder (EK) recorded data during the nighttime from the end of the survey day until commencement of acoustic effort, the following morning (CIMAS, NOAA Southeast Fisheries Science Center, 2024). Environmental data was collected at predetermined stations using a conductivity, temperature, and depth sensor (CTD) unit (Wanninkhof, Sullivan, and Pierrot, 2021).The primary goal was to conduct visual line-transect survey for abundance estimation, and distribution of cetaceans in the U.S. waters of the Atlantic Ocean.This is a reformatted version of the archive stored in U.S. National Centers for Environmental Information (NCEI; https://doi.org/10.25921/gwbg-7k67). Sightings reported as Mobula birostris (AphiaID: 1026118) were mapped to Manta birostris (TSN: 160992) for consistency with the ITIS taxonomy adopted by OBIS‑SEAMAP. Sightings reported as Selachii (AphiaID: 368408) were mapped to Elasmobranchii (TSN: 159786) for consistency with the ITIS taxonomy adopted by OBIS‑SEAMAP. Non-animal observations are removed. 2021061320210904ground condition CompleteNone planned North Atlantic Ocean-86.70882-71.0197338.8946824.28098 NoneMarine Animal SurveyMarine BiologyVisual SightingVesselLine Transect SamplingDistance SamplingSpecies Distribution ModelsPopulation AbundanceNoneNorth Atlantic OceanUnited States of AmericaTaxon coveredMarine mammalsSea 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 surveyKingdomAnimaliaPhylumChordataSubphylumVertebrataClassMammaliaSubclassTheriaInfraclassEutheriaOrderCetaceaSuborderMysticetiFamilyBalaenopteridaeGenusBalaenopteraSpeciesBalaenoptera physalusGenusMegapteraSpeciesMegaptera novaeangliaeSuborderOdontocetiFamilyDelphinidaeGenusDelphinusSpeciesDelphinus delphisGenusGlobicephalaGenusGrampusSpeciesGrampus griseusGenusOrcinusSpeciesOrcinus orcaGenusPseudorcaSpeciesPseudorca crassidensGenusStenellaSpeciesStenella attenuataSpeciesStenella clymeneSpeciesStenella coeruleoalbaSpeciesStenella frontalisSpeciesStenella longirostrisGenusTursiopsSpeciesTursiops truncatusFamilyKogiidaeGenusKogiaSpeciesKogia simaFamilyHyperoodontidaeGenusMesoplodonSpeciesMesoplodon densirostrisSpeciesMesoplodon europaeusGenusZiphiusSpeciesZiphius cavirostrisFamilyPhyseteridaeGenusPhyseterSpeciesPhyseter macrocephalusClassReptiliaOrderTestudinesSuborderCryptodiraSuperfamilyChelonioideaFamilyCheloniidaeSubfamilyCarettinaeGenusCarettaSpeciesCaretta carettaFamilyDermochelyidaeGenusDermochelysSpeciesDermochelys coriaceaClassChondrichthyesSubclassElasmobranchiiSuperorderEuselachiiOrderMyliobatiformesFamilyMobulidaeGenusMantaSpeciesManta birostrisClassMammaliaSubclassTheriaInfraclassEutheriaOrderCetaceaSuborderOdontocetiFamilyZiphiidaeFamilyZiphiidae 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: Dias, L. and L. Garrison. 2026. NOAA Ship Gordon Gunter Vessel Line-transect Survey 2021 (GU2103). 1.0.0. Dataset published in OBIS-SEAMAP. Data accessed on yyyy-mm-dd from https://seamap.env.duke.edu/dataset/2373. 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. Lance Garrison; Laura DiasNOAA Southeast Fisheries Science Center; NOAA Southeast Fisheries Science Center mailing and physical address

n/a; 75 Virginia Beach Dr.

Miami; MiamiFlorida; FLn/a; 33149USA; USA +1 (305) 361-4488; n/alance.garrison@noaa.gov ; laura.dias@noaa.gov NOAA Southeast Fisheries Science Center (SEFSC) Relational database Palka, Debra; Garrison, Lance; Soldevilla, Melissa; Dias, Laura Aichinger; Rappucci, Gina2026vector digital dataNational Centers for Environmental Information. Datasethttps://doi.org/10.25921/gwbg-7k67Garrison, Lance P. and Aichinger Dias, Laura2023vector digital dataSoutheast Fisheries Science Center (U.S.), 2023SEFSC MMTD Contribution: #MMTD-2023-01https://doi.org/10.25923/ce0d-9e10Wanninkhof, Rik; Sullivan, Kevin F.; Pierrot, Denis2021vector digital dataNOAA National Centers for Environmental Informationhttps://doi.org/10.25921/rq7h-4657Wimer, M2021vector digital dataUnited States Geological Surveyhttps://doi.org/10.15468/w2vk7xCIMAS, NOAA Southeast Fisheries Science Center2024vector digital dataNOAA National Centers for Environmental Informationhttps://doi.org/10.25921/tv62-zm30Halpin, 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.20260106Point 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)geomGeometry field added by OBIS-SEAMAPData providerGeometry field added by OBIS-SEAMAPsurveyidSurvey ID (GU2301)Data providerSurvey ID (GU2301)parenteventidParent Event IDData providerParent Event IDeventidEvent IDData providerEvent IDoccurrenceidOccurrence IDData providerOccurrence IDrecordedbyRecorded byData providerRecorded byassociatedmediaAssociated media (blank)Data providerAssociated media (blank)verbatimidentificationVerbatim identificationData providerVerbatim identificationvernacularnameSpecies vernacular nameData providerSpecies vernacular namescientificnameidWoRMS AphiaIDData providerWoRMS AphiaIDscientificnameScientific nameData providerScientific namescientificnameauthorshipScientific name authorshipData providerScientific name authorshipidentificationremarksIdentification remarksData providerIdentification remarksidentificationreferencesIdentification referencesData providerIdentification referencesoccurrenceremarksOccurrence remarksData providerOccurrence remarksmaterialsampleidMaterial sample idData providerMaterial sample idpreparationsPreparations (blank)Data providerPreparations (blank)occurrencestatusOccurrence status ("present")Data providerOccurrence status ("present")id_levelTaxon level of the identificationData providerTaxon level of the identificationsp_tsnITIS Taxonomic Serial Number added by OBIS-SEAMAPData providerTaxonomic Serial NumberIntegrated Taxonomic Information SystemeventdateEvent dateData provider2021-06-13T21:26:06Z2021-09-04T23:19:04ZverbatimeventdateSighting date and timeData provider06/13/2021 17:26:0609/04/2021 8:38:25decimallatitudeLongitude in decimal degreesData provider24.2809838.89468decimallongitudeLatitude in decimal degreesData provider-86.70882-71.01973eventtypeEvent type ("sighting" for marine mammal sighting; "other" for other species sighting)Data providerEvent type ("sighting" for marine mammal sighting; "other" for other species sighting)basisofrecordBasis of record ("occurrence")Data providerBasis of record ("occurrence")samplingprotocolSampling protocolData providerSampling protocoleventremarksEvent remarksData providerEvent remarksdatasetnameDataset name by providerData providerDataset name by providerbibliographiccitationBibliographic citationData providerBibliographic citationyearYearData provider20212021countryCountryData providerCountrycountrycodeCountry codeData providerCountry codelocalityLocalityData providerLocalityhighergeographyHigher geographyData providerHigher geographyhighergeographyidHigher geography idData providerHigher geography idgeodeticdatumGeodetic datum ("WGS84")Data providerGeodetic datum ("WGS84")verbatimcoordinatesystemVerbatim coordinate systemData providerVerbatim coordinate systeminstitutioncodeInstitution code ("DOC | NOAA | NMFS | SEFSC")Data providerInstitution code ("DOC | NOAA | NMFS | SEFSC")institutionidInstitution idData providerInstitution idaccessrightsAccess rightsData providerAccess rightslicenseLicense (public domain)Data providerLicense (public domain)references_Data providerlanguage_Data providermodifiedModifiedData providerModifiedbiopsycollectedBiopsy collectedData providerBiopsy collectedshapenewShape newData providerShape newspeciesdescriptionSpecies descriptionData providerSpecies descriptionbehaviornew3Data providerresponseResponseData providerResponseindividualcountminIndividual count min (may be multiple numbers)Data providerIndividual count min (may be multiple numbers)behaviornew2Data providerindividualcountneonatesData providerbehaviorinitial3Behavior initial 3Data providerBehavior initial 3vesselapproachVessel approachData providerVessel approachbirdpresenceBird presenceData providerBird presencefishpresenceFish presenceData providerFish presencebehaviorinitial1Behavior initial 1Data providerBehavior initial 1calvespresenceCalves presenceData providerCalves presenceeffort1Effort 1Data providerEffort 1shapeinitialShape initialData providerShape initialeffort2Effort 2Data providerEffort 2shapechangeShape changeData providerShape changecalvesattributesCalves attributesData providerCalves attributesindividualcountmaxindividual count max (may be multiple numbers)Data providerindividual count max (may be multiple numbers)remoraRemoraData providerRemorabehaviorinitial2Behavior initial 2Data providerBehavior initial 2multiplespeciesMultiple speciesData providerMultiple speciescookiecuttersharkData providerbehaviornew1Behavior new 1Data providerBehavior new 1individualcountcalvesIndividual count calvesData providerIndividual count calvesvesselmaneuverVessel maneuverData providerVessel maneuverbehaviorchangeBehavior changeData providerBehavior changebirdidentificationBird identificationData providerBird identificationneonatespresenceNeonates presenceData providerNeonates presenceneonateattributesData providersightingremarksSighting remarksData providerSighting remarksfishidentificationFish identificationData providerFish identificationindividualcountIndividual count (average if multiple best counts)Data providerIndividual count (average if multiple best counts)individualcountbestIndividual count best (may be multiple numbers)Data providerIndividual count best (may be multiple numbers)multiplespeciesremarksmultiple species remarksData providermultiple species remarkssighting_attributessighting attributes including cues in JSON formatData providersighting attributes including cues in JSON formatThis 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.NOAA Southeast Fisheries Science Center (NEFSC) 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 2373Not 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. 2026010720260107 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