{999A9551-D701-4CF5-9373-131D3DD8D969}2005051219291400FALSE20060710171619002006081512091700SarawakSouth China SeaMalaysiaConservationdistributionhabitatPlatformVesselsSightingsMicrosoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 9.1.0.722enBetween June 2008 and September 2009, 56 days of small boat surveys were conducted off the coast of Sarawak, Malaysia with the aim of recording cetacean distribution. These surveys, which focused on the Miri, Bintulu-Similajau and Kuching regions, comprised 173 hours of survey effort and covered 2851 km of pre-determined systematic tracks. Surveys were clustered into three sets of seasonal snapshots: June-July, September-October and March-April. A total of 115 cetacean sightings were made, of which 65 were on-effort and used in analyses of cetacean encounter rates in relation to habitat characteristics. Species observed included (in order of frequency) Irrawaddy dolphins (<i>Orcaella brevirostris</i>), finless porpoises (<i>Neophocaena phocaenoides</i>), Indo-Pacific bottlenose dolphins (<i>Tursiops aduncus</i>) and Indo-Pacific humpback dolphins (<i>Sousa chinensis</i>). <br><br> One hundred and ten of 115 sightings were made in less than 10 m water depth, highlighting the importance of nearshore coastal habitats for these species. Despite an apparent overlap in habitat, Irrawaddy dolphins showed a statistically significant affiliation with areas of shallower depth and closer proximity to shore and river mouths than finless porpoises or bottlenose dolphins. This preference for nearshore areas renders the species vulnerable to threats such as fisheries by-catch and habitat degradation from coastal development. Irrawaddy dolphins were more frequently encountered in Kuching, while the highest encounter rate for finless porpoises was in the Bintulu-Similajau region. The highest encounter rates in both Kuching and Similajau occurred in areas that are destined for major coastal developments. A series of small boat surveys was conducted in three locations along Sarawak’s coastline with the aims of:<br> 1) assessing more accurately the species composition, distribution and habitat requirements of coastal cetaceans in the region;<br> 2) collecting baseline data on dolphin distribution and habitat use; and<br> 3) facilitating management and conservation efforts.<br><br> The results of these surveys should enable managers and researchers to identify areas of key importance for future conservation and research efforts and lay the foundation for more detailed and targeted study both within Sarawak and in other parts of the species’ range.Effort data are available through request from the original data providers.Minton, G2011https://doi.org/10.82144/443d7862OBIS-SEAMAP744http://seamap.env.duke.edu/dataset/744OBIS-SEAMAPVersion 1.0.0ground condition2008-06-112009-09-16CompleteNone planned110.185371113.9755854.5609081.57334110.185371113.9755851.573344.560908Open 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 Minton, G. 2011. Distribution of small cetaceans in the nearshore waters of Sarawak, East Malaysia. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/744) 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.ShapefileGianna MintonSarawak Dolphin Projectmailing and physical addressgianna.minton@gmail.com Integrated Taxonomic Information Systemhttp://www.itis.usda.gov/Downloaded April, 2004Refer to the contact information of the datasetKingdomAnimalia202423PhylumChordata158852SubphylumVertebrata331030ClassMammalia179913SubclassTheria179916InfraclassEutheria179925OrderCetacea180403SuborderOdontoceti180404FamilyDelphinidae180415GenusOrcaella180470SpeciesOrcaella brevirostris180471GenusSousa180418SpeciesSousa chinensis180419GenusTursiops180425SpeciesTursiops aduncus612596FamilyPhocoenidae552307GenusNeophocaena180477SpeciesNeophocaena phocaenoides180478The Sarawak Dolphin Project, Institute of Biodiversity and Environmental Conservation, Universiti Malaysia Sarawak, 94300 Kota Samarahan, SarawakMinton, G., C. Peter and A.A. Tuen2011http://rmbr.nus.edu.sg/rbz/biblio/59/59rbz091-100.pdfThe Raffles Bulletin of Zoology 59: 91-100Halpin, 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 timeConnie KotDuke Universitymailing and physical address

135 Duke Marine Lab Road

BeaufortNC28516USA252-504-7640connie.kot@duke.eduhttp://www.nbii.gov/Biological Data Profilehttp://www.esri.com/metadata/esriprof80.htmlESRI Metadata Profile2011-05-06ISO 19115 Geographic Information - MetadataDIS_ESRI1.0datasetDownloadable Data0.0210.021zipzipped shapefilehttp://seamap.env.duke.edu/dataset/744FreeGo 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.The Sarawak Dolphin Project, Institute of Biodiversity and Environmental ConservationoidUnique ID number (generated by SEAMAP)obs_dateObserved dateobs_timeObserved timesp_tsnSpecies ITIS TSNsp_obsSpecies observedengnameEnglish name observedsightrecnumSighting record numbersitenameSite namelatitudeLatitude of observationlongitudeLongitude of observationobs_countObserved count (best estimate number)effortEffort level codedepthObserved depth (m)tidehtObserved tide heightnotesNotes for when observation was not identified to species level and English name was used20060815