de Boer, M.N.2010Journal of the Marine Biological Association of the United Kingdom90(8): 1613-1621https://doi.org/10.1017/S0025315410001165 Information on cetaceans and marine turtles off Gabon in tropical West Africa was collected during boat-based surveys carried out between 7 March and 7 August 2009. Thirteen cetacean species were positively identified comprising two baleen whale species, one sperm whale species and ten species of delphinid. Bryde’s whale (Balaenoptera brydei) and humpback whale (Megaptera novaeangliae) were the most frequently encountered species. Cetaceans were found throughout a range of sea surface temperature between 20.5˚C and 27.5˚C and a wide range of depths with the majority of effort and sightings occurring seaward of the shelf break. Of particular interest from the study were the following: (1) Gabonese waters have a broad cetacean diversity, especially with a large and diversified delphinid community in the northern part of the study area; (2) the variations in oceanographic conditions within Gabonese waters are likely to result in a temporal variation in species composition; (3) the sightings of Atlantic spotted dolphin (Stenella frontalis) are the first at-sea sightings confirmed for these waters, although not unexpected given their distribution and abundant presence in surrounding waters; and (4) the poorly known Clymene dolphin (Stenella clymene) was sighted on four occasions in deep oceanic waters and was the most abundant cetacean. These are the first confirmed records of Clymene dolphins in Gabonese waters.The main purpose of this study was to contribute information on the distribution and relative abundance of cetaceans sighted during a geophysical survey in Gabonese waters and where possible relating the occurrence of different species with oceanographic parameters such as sea surface temperature (SST) and depth.2009031320090806ground conditionCompleteNone plannedGabon7.353310.73-0.6128-5.5 NoneMarine Animal SurveyMarine BiologyMarine mammalsSea turtlesVisual SightingVesselNoneGabonTaxon coveredMarine mammalsSea turtlesIntegrated 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 brydeiGenusMegapteraSpeciesMegaptera novaeangliaeSuborderOdontocetiFamilyDelphinidaeGenusDelphinusGenusGlobicephalaSpeciesGlobicephala macrorhynchusGenusGrampusSpeciesGrampus griseusGenusOrcinusSpeciesOrcinus orcaGenusPeponocephalaSpeciesPeponocephala electraGenusStenellaSpeciesStenella attenuataSpeciesStenella clymeneSpeciesStenella frontalisGenusStenoSpeciesSteno bredanensisGenusTursiopsSpeciesTursiops truncatusFamilyHyperoodontidaeGenusMesoplodonFamilyPhyseteridaeGenusPhyseterSpeciesPhyseter macrocephalusClassReptiliaOrderTestudinesSuborderCryptodiraSuperfamilyChelonioideaFamilyCheloniidaeSubfamilyCarettinaeGenusLepidochelysSpeciesLepidochelys olivacea 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: 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 BoerWageningen Marine Research, University of Wageningen mailing and physical address

Postbus 167

1780 AB Den HelderThe Netherlands unknownmarijkedeboer@hotmail.com Marijke N. de Boer Relational database de Boer, M.N.2010vector digital dataJournal of the Marine Biological Association of the United Kingdom90(8): 1613-1621https://doi.org/10.1017/S0025315410001165de Boer, M.N.2010vector digital dataMarine Biodiversity RecordsVolume 3, 4 pp.DOI: https://doi.org/10.1017/S1755267210000539de Boer, M2019Version 1.0.0vector digital dataOBIS-SEAMAP2019https://seamap.env.duke.edu/dataset/2019OBIS-SEAMAPhttps://doi.org/10.82144/cd202abeHalpin, 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.20191014Point 0.00010.0001Decimal 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)sighting_noSighting NumberData provider185date_timeDate and time at local time zoneData provider2009-03-13 07:18:002009-08-06 07:25:00datetime_utcDate and time at UTCData provider2009-03-13 06:18:002009-08-06 06:25:00observerThe name of the observer who first sighted the animalData providerThe name of the observer who first sighted the animallatitudeLatitude in decimal degreesData provider-5.50000-0.61280longitudeLongitude in decimal degreesData provider7.3533010.73000depthWater depth (metres)Data providerWater depth (metres)speciesSpecies nameData providerSpecies namelatin_nameLatin nameData providerLatin namesp_tsnTaxonomic Serial Number added by OBIS-SEAMAPData provider173828612597certaintyCertaintyData providerCertaintydistanceDistance (m)Data providerDistance (m)num_animalsNumber of animalsData provider1.00200.00notesNotesData providerNotestimezone_hTime zone added by OBIS-SEAMAPData providerTime zone added by OBIS-SEAMAPgeomGeometry 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.Marijke 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 2019Not 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. 2025091120250911 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