{999A9551-D701-4CF5-9373-131D3DD8D969}2005051219291400FALSE20060710171619002006081512091700PlatformVesselsSightingsMicrosoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 9.1.0.722enA three year study was undertaken during 2002 to 2004 from May to September to estimate abundance and density of harbor porpoises on the north coast of Anglesey, Wales, United Kingdom. There were no ecological data regarding the harbor porpoises in Anglesey waters so the ability to influence conservation measures was highly constrained. Boat-based transects using distance sampling techniques were applied so a robust estimate of density and abundance could be attained. The study area consisted of a block approximately 489 km2 extending from the east of Point Lynas to the west of South Stack on north coast of Anglesey. The study area was divided into five blocks consisting of 31 perpendicular transect lines to the shore. Each of the transect lines were surveyed 1–5 times by the end of the three year study. Based on the assumption that g(0) = 1 the density of harbor porpoises for the 489 km2 study site was estimated to be 0.630 individuals/km2 (CV = 0.20) and the abundance is estimated to be 309 individuals (CV = 0.20). Heterogeneity in density and abundance was observed across the five blocks which showed Point Lynas and South Stack to have the highest densities. This distribution was closely associated to fine-scale oceanographic features which cause prey to be concentrated and may facilitate foraging for harbor porpoises. The study showed that Anglesey provides coastal habitats for the harbor porpoise and was the first study of this kind in North Wales, United Kingdom.The need for abundance and density estimates was highlighted as a key factor in the conservation and management of the harbor porpoise in Anglesey waters. Moreover, proposed extension of the wind farms from Liverpool Bay to Anglesey and the potential of the area for marine renewable energy devices presented a problem to managers and planners due to the lack of knowledge of harbor porpoise populations in north Wales.Among tracklines, two lines were removed as either start or end time was not recorded. These are: 6/08/2003 starting 16:23, and 9/08/2003 ending 16:02. Shucksmith, R2011https://doi.org/10.82144/f7d824f5OBIS-SEAMAP703http://seamap.env.duke.edu/dataset/703OBIS-SEAMAPVersion 1.0.0ground condition2002-07-072004-09-09CompleteNone planned-4.8338-4.197353.502653.2555-4.8338-4.197353.255553.5026Open 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 Shucksmith, R. 2011. Marine Awareness North Wales, Wildlife Trust harbor porpoise baseline surveys on the north coast of Anlesey, Wales, UK. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/703) 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.ShapefileRichard ShucksmithThe Scottish Association for Marine Sciencemailing and physical addressrshucksmith@gmail.com Integrated Taxonomic Information Systemhttp://www.itis.usda.gov/Downloaded April, 2004Refer to the contact information of the datasetKingdomAnimalia202423PhylumChordata158852SubphylumVertebrata331030ClassMammalia179913SubclassTheria179916InfraclassEutheria179925OrderCetacea180403SuborderOdontoceti180404FamilyPhocoenidae552307GenusPhocoena180472SpeciesPhocoena phocoena180473Shucksmith, R., N.H. Jones, G.W. Stoyle, A. Davies and E.F. Dicks2008http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=5918340&fulltextType=RA&fileId=S0025315408002579Journal of the Marine Biological Association1-8Richard Shucksmith, Nia H. Jones, George W. Stoyle, Andrew Davies and Emily F. DicksHalpin, 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 timeAndrew DiMatteoDuke Universitymailing and physical addressadd11@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/703FreeGo 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.Richard ShucksmithoidUnique ID number (generated by SEAMAP)obs_dateObserved dateobs_timeObserved timelatitudeLatitude of observationlongitudeLongitude of observationsp_obsSpecies observedsp_tsnSpecies ITIS TSNobs_countsum of adult, juvenile and calf countseffort_idinput_byboat_nametransectnotransect numberstartlatdtransect start latitude degreestartlatmstransect start latitude minutesstartlondtransect start longitude degreestartlonmstransect start longitude minutesendlatdtransect end latitude degreeendlatmstransect end latitude minutesendlondtransect end longitude degreeendlonmstransect end longitude minutesno_adnumber of adultsno_juvnumber of juvenilesno_calfnumber of calvespsport or starboarddistancebearingwindseaswellcloudprecipprecipitationvisibilityproc_notesprocessing notes20060815