De Boer MN, Saulino JT, Van Waerebeek K and Aarts G.2016Frontiers in Marine Science3:178.https://doi.org/10.3389/fmars.2016.00178 Within the Gulf of Guinea the information on the cetacean abundance and distribution is scarce. A cetacean survey took place during geophysical surveys (2013–2014) along the coasts of Ghana and Côte d’Ivoire. Due to large group-sizes, melon-headed whales were the most abundant (0.34 animals km−1) followed by Fraser’s dolphins and short-finned pilot whales. Range state records were confirmed for melon-headed whale and Fraser’s dolphin in Ivoirian waters and ten further species represented first at-sea sightings. Fraser’s dolphins, melon-headed whales, pantropical spotted dolphins, bottlenose dolphins, and pilot whales were recorded in areas with the highest fishing densities. Melon-headed whales, pilot whales, and rough-toothed dolphins were observed in vicinity of trawlers; bottlenose dolphins, pantropical spotted dolphins, and pilot whales in vicinity of canoes. The poor knowledge on population trends of cetaceans in this unique upwelling region, together with a high demand for cetacean products for human consumption (as “marine bushmeat”) may lead to a potential decline of some species that may go unnoticed. These new insights can provide a foundation for the urgently required risk assessments of cetacean mortality in fisheries within the northern Gulf of Guinea.The objective of this study was to gather new information on the poorly monitored local cetacean populations in order to understand the threat posed by interactions with fisheries either due to unintended bycatch (entanglement) or direct capture. The information presented provides a valuable insight into the occurrence, relative abundance, and at-sea distribution of cetaceans and an indication as to which cetacean species appear to be under the greatest fishing pressure. As such, these findings provide new directions for future assessments of fishing pressure on cetaceans through incidental catches and directed takes.Information regarding location of fishing vessels is available upon request2013041820140524ground conditionCompleteNone plannedGhana-3.43817-1.845334.872673.5995 NoneMarine Animal SurveyMarine BiologyMarine mammalsVisual SightingVesselNoneGhanaIvorycoastTaxon 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 brydeiSuborderOdontocetiFamilyDelphinidaeGenusDelphinusGenusGlobicephalaSpeciesGlobicephala macrorhynchusGenusLagenodelphisSpeciesLagenodelphis hoseiGenusPeponocephalaSpeciesPeponocephala electraGenusStenellaSpeciesStenella attenuataSpeciesStenella clymeneSpeciesStenella longirostrisGenusStenoSpeciesSteno bredanensisGenusTursiopsSpeciesTursiops truncatusFamilyPhyseteridaeGenusPhyseterSpeciesPhyseter macrocephalus 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

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1780 AB Den HelderThe Netherlands unknownmarijkedeboer@hotmail.com Marijke N. de Boer Relational database De Boer MN, Saulino JT, Van Waerebeek K and Aarts G.2016vector digital dataFrontiers in Marine Science3:178.https://doi.org/10.3389/fmars.2016.00178de Boer, M2019Version 1.0.0vector digital dataOBIS-SEAMAP2018https://seamap.env.duke.edu/dataset/2018OBIS-SEAMAPhttps://doi.org/10.82144/4427f2dfHalpin, 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 1e-051e-05Decimal 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 provider1273date_timeDate and time at local time zoneData provider2013-04-18 16:10:002014-05-24 08:41:00datetime_utcDate and time at UTCData provider2013-04-18 16:10:002014-05-24 08:41:00observerThe name of the observer who first sighted the animalData providerThe name of the observer who first sighted the animallatitudeLatitude in decimal degreesData provider3.5995004.872670longitudeLongitude in decimal degreesData provider-3.438170-1.845330depthWater depth (metres)Data provider67.004980.00speciesSpecies nameData providerSpecies namelatin_nameLatin nameData providerLatin namesp_tsnTaxonomic Serial Number added by OBIS-SEAMAPData provider180403612597certaintyCertaintyData providerCertaintybearingBearing to animalData provider0357range_of_animalRange of animal (metres)Data provider507000total_numberTotal number of animals sightedData provider11000num_adultsNumber of adultsData provider1680num_juvenilesNumber of juvenilesData provider1150num_calvesNumber of calves (visual sightings only)Data provider020photoPhoto (yes/no)Data providerPhoto (yes/no)behaviourBehaviourData providerBehaviourdirection_relativeDirection of travel (relative to ship)Data providerDirection of travel (relative to ship)direction_compassDirection of travel (compass points)Data providerDirection of travel (compass points)sea_stateSea stateData providerSea stateswellSwellData providerSwellvisibilityVisibilityData providerVisibilityglareGlareData providerGlareprecipationPrecipationData providerPrecipationsstSST in celsiusData providerSST in celsiustimezone_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 2018Not 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