{999A9551-D701-4CF5-9373-131D3DD8D969}2005051219291400FALSE20060710171619002006081512091700PlatformVesselsAcousticMicrosoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 9.1.0.722enWe present marine mammal observation statistics, high-frequency seismic source characteristics, and example denoising of marine mammal acoustical recordings using data collected during the mitigation and monitoring program for a 3-D seismic survey by Encana Corporation, Calgary, Alberta, Canada, in the northwest Atlantic during 2003. Marine mammals were observed both visually and acoustically. No marine mammal incidents or adverse reactions were observed during the survey.<br><br> Acoustical observations were made by the Seamap Passive Acoustic Cetacean Monitoring System (SPACMS), consisting of two hydrophones placed 50 m apart, towed ahead of and to one side of the seismic source. Visual and acoustical detections were uncorrelated, indicating the complementary nature of the two observational techniques. Visual detections were more common per hour of effort than acoustical detections. Acoustical detection rates showed no significant day–night difference.<br><br> Marine mammals appeared to have avoided very close ranges (100 m) from the seismic array during seismic acquisition, but the overall number of marine mammals in the observable radius (1–2 km) did not change significantly when the seismic source was “on” compared to “off.” Marine mammals were observed in larger groups and appeared to have become less vocal when the seismic source was active. It should be noted however, that the results from this data gathering effort may be affected by potential sources of bias (such as the combination of data from toothed and baleen whales).<br><br> Signal processing of seismic source signatures indicated some high-frequency energy content consistent with expectations from earlier work. This analysis confirmed that most of the seismic energy was concentrated at lower frequencies (500 Hz). No low-frequency comparisons with near-field data could be made due to the geometry of the SPACMS recording hydrophones and seismic source, which resulted in the Lloyd’s mirror effect obliterating low-frequency components in the SPACMS records. A wavelet-based denoising method was applied to improve the visibility of marine mammal vocalizations on a spectrogram display.Visual data collected in this survey are registered on OBIS-SEAMAP separately as the <a href=http://seamap.env.duke.edu/datasets/detail/650>Deep Panuke whale sightings 2003</a> dataset.Thillet, M2011https://doi.org/10.82144/44da74ddOBIS-SEAMAP651http://seamap.env.duke.edu/dataset/651OBIS-SEAMAPVersion 1.0.0ground condition2003-05-042003-05-23CompleteNone planned-57.84-57.46760444.38452343.775861-57.84-57.46760443.77586144.384523Open 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 Thillet, M. 2011. Deep Panuke whale Acoustic 2003. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/651) on yyyy-mm-dd. 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.ShapefileMarielle ThilletEncana Corporationmailing and physical addressmarielle.thillet@encana.com Integrated Taxonomic Information Systemhttp://www.itis.usda.gov/Downloaded April, 2004Refer to the contact information of the datasetKingdomAnimalia202423PhylumChordata158852SubphylumVertebrata331030ClassMammalia179913SubclassTheria179916InfraclassEutheria179925OrderCetacea180403SuborderOdontoceti180404FamilyDelphinidae180415FamilyHyperoodontidae770799GenusHyperoodon180503SpeciesHyperoodon ampullatus180504FamilyPhyseteridae180486GenusPhyseter180487SpeciesPhyseter macrocephalus180488Marielle Thillet, Deep Panuke Project, Encana CorporationPotter, J.R., M. Thillet, C. Douglas and M.A. Chitre2007IEEE Journal of Oceanic Engineering32:469-483Halpin, 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):104-115http://www.tos.org/oceanography/article/obis-seamap-the-world-data-center-for-marine-mammal-sea-bird-and-sea-turtle enFGDC Content Standards for Digital Geospatial MetadataFGDC-STD-001-1998local timeEi FujiokaDuke Universitymailing and physical address

LSRC A328

DurhamNCUSAefujioka@duke.eduhttp://www.nbii.gov/Biological Data Profilehttp://www.esri.com/metadata/esriprof80.htmlESRI Metadata Profile2011-05-23ISO 19115 Geographic Information - MetadataDIS_ESRI1.0datasetDownloadable Data0.0210.021zipzipped shapefilehttp://seamap.env.duke.edu/dataset/651FreeGo to the OBIS-SEAMAP web siteOBIS-SEAMAPNicholas School of Environment, Duke Universitymailing and physical address

A328, LSRC

DurhamNC27708USA919-613-8021seamap-contact@duke.eduNot 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. 002 Local Area Network 0.021 Shapefile Vector GCS_WGS_1984Decimal degrees0.0001670.000167D_WGS_1984WGS_19846378137.000000298.257224GCS_WGS_1984 This 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.Encana CorporationoidUnique ID number (generated by SEAMAP)obs_datedate of observationtime_fmtTime in GMTobs_timetime of observationdepthWater depth in meterslocationLat/Long of VessellatitudeLatitude in decimal degreeslongitudeLongitude in decimal degreesreport_noSighting Report No.animal_locationLat/Long of MammalobservedAcoustic or Visualization Indication of Speciessp_obsSpecies observedsp_tsnITIS taxonomic serial number. This field added by OBIS-SEAMAPobs_countNumber of animalsheadingVessel HeadingbearingBearing of Mammal to VesselrangeRange of MammalcommentsComments20060815