Kopelman, A. and M. McNamara2025Version 1.0.0vector digital dataOBIS-SEAMAP2371https://seamap.env.duke.edu/dataset/2371OBIS-SEAMAPhttps://doi.org/10.82144/39e2dc8e Cetacean sightings data for the waters off Montauk for July 2025 through mid- September 2025The Coastal Research and Education Society of Long Island is a non-profit research and education organization. Our mission is: "To promote and foster understanding and stewardship of coastal ecosystems through research and education ." Part of our work is to observe, document, and collect pertinent data and photographs of the cetaceans and sea bird populations of NY and New England and to take people to see these animals in the wild. Since 1996 we have been offering incredible and successful single day and multi-day offshore pelagic bird and whale observation trips. 2025062920251005ground condition CompleteNone planned North Atlantic Ocean-72.047673-69.29252441.4868740.826903 NoneMarine Animal SurveyMarine BiologyMarine mammalsVisual SightingVesselNoneNorth Atlantic OceanMontaukBlock IslandEastern NY BightTaxon 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 surveyKingdomAnimaliaPhylumChordataSubphylumVertebrataClassMammaliaSubclassTheriaInfraclassEutheriaOrderCetaceaSuborderMysticetiFamilyBalaenopteridaeGenusBalaenopteraSpeciesBalaenoptera acutorostrataSpeciesBalaenoptera physalusGenusMegapteraSpeciesMegaptera novaeangliaeSuborderOdontocetiFamilyDelphinidaeGenusDelphinusSpeciesDelphinus delphisGenusTursiopsSpeciesTursiops truncatus 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: Kopelman, A. and M. McNamara. 2025. CRESLI marine mammal observations from whale watch cruises 2025. Version 1.0.0. Dataset published in OBIS-SEAMAP. Data accessed on yyyy-mm-dd from https://seamap.env.duke.edu/dataset/2371. 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. Arthur Kopelman; Marianne McNamaraCoastal Research and Education Society of Long Island; Coastal Research and Education Society of Long Island mailing and physical address

PO Box 54; n/a

WEST SAYVILLE; n/aNY; n/a11796; n/aUSA; n/a 631-319-6003; n/apresident@cresli.org; marianne@cresli.org Coastal Research and Education Society of Long Island, Inc. Relational database 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. 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.20251125Point 1e-061e-06Decimal degrees D_WGS_1984WGS_1984 6378137.000000298.257224 Biogeographic dataBiogeographic dataNot applicableoidUnique ID number (generated by OBIS-SEAMAP)Data provider1263globalidGlobal IDData providerGlobal IDcreationdateCreation dateData provider2025-06-30 13:20:282025-10-06 08:57:36creatorCreator (always "CRESLI")Data providerCreator (always "CRESLI")editdateEdit dateData provider2025-06-30 13:20:282025-10-06 08:57:36editorEditor (always "CRESLI")Data providerEditor (always "CRESLI")obs_dateObservation dateData provider2025-06-292025-10-05obs_timeObservation time (hh:mm)Data provider08:05:0018:01:00sea_surface_tempSea surface temperatureData provider38.2000000076.56000000sea_stateBeaufort Sea StateData provider04depthDepthData provider22.000305.000prey_density_profilePrey Density ProfileData providerPrey Density Profileprey_depth_profilePrey Depth ProfileData providerPrey Depth Profileprey_speciesPrey speciesData providerPrey speciessp_obsCetacean - Focal Individual(S) SpeciesData providerCetacean - Focal Individual(S) Speciessp_tsnTaxonomic Serial Number added by OBIS-SEAMAPData provider180403180530life_stageLife Stage - Focal Individual(s)Data providerLife Stage - Focal Individual(s)same_individualSame individual as previous entry?Data providerSame individual as previous entry?minimum_number_of_focal_individualsMinimum Number of focal individualsData provider1140maximu_number_of_focal_individualsMaximum Number of focal individualsData provider156927obs_countAverage of group size added by OBIS-SEAMAPData provider128465additional_speciesAdditional Species (if present)Data providerAdditional Species (if present)number_of_individuals_of_additional_speciesNumber or range (min-max) of individuals of additional speciesData provider1.00200260.00feedingFeeding?Data providerFeeding?feeding_behaviorFeeding behavior of focal individual (s)Data providerFeeding behavior of focal individual (s)dive_behaviorDive behavior (Mysticetes only)Data providerDive behavior (Mysticetes only)interactive_behaviorsInteractive BehaviorsData providerInteractive Behaviorssurface_display_behaviorsSurface Display BehaviorsData providerSurface Display Behaviorsterminal_dive_durationTerminal Dive duration (whales only)Data providerTerminal Dive duration (whales only)number_of_individuals_of_additional_species2Number or range (min-max) of individuals of additional speciesData providerNumber or range (min-max) of individuals of additional specieslongitudeLongitude in decimal degreesData provider-72.0476730-69.2925240latitudeLatitude in decimal degreesData provider40.826903041.4868700geomGeometry 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.Coastal Research and Education Society of Long Island, Inc. 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 2371Not 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. 2025112520251125 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