Virginia Aquarium & Marine Science Foundation20141001vector digital dataOBIS-SEAMAPLatesthttp://seamap.env.duke.edu/dataset/1201OBIS-SEAMAPhttps://doi.org/10.82144/1f7e28c7Version 1.0.0 The data provided were collected as part of the the Virginia and Maryland Sea Turtle Research & Conservation Initiative - funded by the National Marine Fisheries Service Species Recovery Grants program No. NA09NMF4720033.Previous sea turtle abundance estimates reported in the Virginia portion of the Chesapeake Bay where developed using aerial surveys without correcting for seasonal differences and availability bias. More recent surveys yielded estimates of availability throughout the turtles' residency periods using radio transmitters and satellite telemetry. These estimates where significantly different then previous surveys and changed over time. This project was conducted in order to quantify turtles surfacing time for the purpose of calculating seasonal and annual differences in availability, conduct aerial surveys in a manner that will allow for the calculation of perception bias, and compare estimates generated during previous projects.Aerial surveys were conducted along the coastal waters and bays of Virginia and Maryland. This project is broken into two survey periods. The survey platform was a De Havilland twin otter DHC‐6 modified for observational research. The aircraft was configured so as to have two forward observers and a data recorder on their own communication system and have a second team consisting of a belly observer and one additional observer (either port or starboard) along with a data recorder. The separation of the communications systems enables the two teams to function independently thereby functioning as two individual surveys. Groups of sea turles, marine mammals, and other marine mammals were recorded. This method was developed in order to calculate a perception bias using mark recapture techniques. This dataset is the filtered version – meaning all the duplicate sightings have been removed. All records are marked as observed by only team one, only team two, or by both. There is only one record for each sighting even if the animal was sighted by both teams. The raw dataset, with all sighting from both teams, is available by request from the Virginia Aquarium & Marine Science Foundation.2011052220130731ground conditionCompleteNone plannedNorth Atlantic-76.39647-74.3984938.5214236.58278 NoneMarine Animal SurveyMarine BiologyMarine mammalsSea turtlesVisual SightingAircraftNoneNorth AtlanticTaxon 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 borealisSpeciesBalaenoptera physalusSuborderOdontocetiFamilyDelphinidaeGenusTursiopsSpeciesTursiops truncatusClassReptiliaFamilyCheloniidaeGenusCarettaSpeciesCaretta carettaGenusLepidochelysSpeciesLepidochelys kempiiGenusCheloniaSpeciesChelonia mydasFamilyDermochelyidaeGenusDermochelysSpeciesDermochelys coriacea 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: Barco, S. 2014. Virginia and Maryland Sea Turtle Research and Conservation Initiative Aerial Survey Sightings, May 2011 through July 2013. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/1201) 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. Gwen LockhartVirginia Aquarium & Marine Science Center mailing and physical address

717 General Booth Blvd

Virginia BeachVA23451 757-3856486glockhar@virginiaaquarium.com Virginia Aquarium Foundation - Susan G. Barco & Gwen G. Lockhart Riverhead Foundation for Marine Research & Preservation - Robert A. DiGiovanni Jr. & Allison M. DePerte Relational database 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. Hyrenbach2009vector digital dataOceanography22(2):104-115http://www.tos.org/oceanography/article/obis-seamap-the-world-data-center-for-marine-mammal-sea-bird-and-sea-turtle 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.20141001Point 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)objectidRow ID assigned by VAQF ArcGISData providerRow ID assigned by VAQF ArcGISobs_countBest estimate of group sizeData provider170obs_dateDate of sightingData provider2011-05-222013-07-31obs_timeTime of sighting in local time zoneData provider12:02:5823:13:44sp_obsSpecies name recordedData providerSpecies name recordedData providersp_tsnTaxonomic Serial Number added by OBIS-SEAMAPData providerTaxonomic Serial Number added by OBIS-SEAMAPData providerstrataSurvey block: A to EData providerSurvey block: A to EsurveyNumber of surveyData providerNumber of surveytransectRecorded transect line: Series/LineNumberData providerRecorded transect line: Series/LineNumberseriesSet of lines used during surveyData providerSet of lines used during surveylinenumberNumber of transect lineData providerNumber of transect lineteamObserver team: 1 = front, 2 = rear, 3 = bothData providerObserver team: 1 = front, 2 = rear, 3 = bothData providerlineLine IDData providerLine IDsightingnumberSighting number as recordedData provider11072duplicatesightingnumberRecorded sighting number of duplicate sightingData providerRecorded sighting number of duplicate sightingobsInitials of observerData providerInitials of observerangsideSide of sighting: R = right, L = left (only recorded if ObsPosition = C)Data providerSide of sighting: R = right, L = left (only recorded if ObsPosition = C)dist_mPerpendicular distance (meters)Data provider0.0001037.800swimdirSwim directionData providerSwim directionobspositionPosition of observer in plane: L = left, R = right, C = centre (belly window)Data providerPosition of observer in plane: L = left, R = right, C = centre (belly window)latitudeLatitude in decimal degreesData provider36.58278038.521420longitudeLongitude in decimal degreesData provider-76.396470-74.398490speedSpeed of planeData provider0.00138.60directionDirection of plane (degrees)Data provider0.00359.80altitudeAltitude of plane (meters)Data provider0183beaufortBeaufort sea stateData provider0.00Beaufort sea state 0.00Data provider1.00Beaufort sea state 1.00Data provider1.10Beaufort sea state 1.10Data provider1.20Beaufort sea state 1.20Data provider1.30Beaufort sea state 1.30Data provider1.40Beaufort sea state 1.40Data provider1.50Beaufort sea state 1.50Data provider1.60Beaufort sea state 1.60Data provider1.70Beaufort sea state 1.70Data provider1.80Beaufort sea state 1.80Data provider1.90Beaufort sea state 1.90Data provider2.00Beaufort sea state 2.00Data provider2.10Beaufort sea state 2.10Data provider2.20Beaufort sea state 2.20Data provider2.30Beaufort sea state 2.30Data provider2.40Beaufort sea state 2.40Data provider2.50Beaufort sea state 2.50Data provider2.60Beaufort sea state 2.60Data provider2.70Beaufort sea state 2.70Data provider2.80Beaufort sea state 2.80Data provider2.90Beaufort sea state 2.90Data provider3.00Beaufort sea state 3.00Data provider3.10Beaufort sea state 3.10Data provider3.20Beaufort sea state 3.20Data provider3.30Beaufort sea state 3.30Data provider3.40Beaufort sea state 3.40Data provider3.50Beaufort sea state 3.50Data provider3.60Beaufort sea state 3.60Data provider3.70Beaufort sea state 3.70Data provider3.80Beaufort sea state 3.80Data provider3.90Beaufort sea state 3.90Data provider4.00Beaufort sea state 4.00Data provider4.10Beaufort sea state 4.10Data provider4.20Beaufort sea state 4.20Data providerturbidityTurbidity: 0 = clear, 1 = moderately clear, 2 = turbid, 9 = unknownData providerTurbidity: 0 = clear, 1 = moderately clear, 2 = turbid, 9 = unknownData providerccCloud cover: 0 = no clouds, 1-99 = %age of cloud coverData providerCloud cover: 0 = no clouds, 1-99 = %age of cloud coverglarefromGlare from front of planeData providerGlare from front of planeglaretoGlare to front of planeData providerGlare to front of planeglareseveritySeverity of glare: 0 = none, 1 = slight, 2 = moderate, 3 = excessiveData providerSeverity of glare: 0 = none, 1 = slight, 2 = moderate, 3 = excessiveData providerqualitySubjective quality: 1 = excellent, 2 = good, 3 = moderate, 4 = fair, 5 = poor, 0 = over land or off effortData providerSubjective quality: 1 = excellent, 2 = good, 3 = moderate, 4 = fair, 5 = poor, 0 = over land or off efforttransectidTransect identifier based on Survey-LineNumberData providerTransect identifier based on Survey-LineNumbersightingidUnique identifier of sighting: Survey-Team-SightingNumData providerUnique identifier of sighting: Survey-Team-SightingNumdupidUnique identifier of duplicate sightingData providerUnique identifier of duplicate sightingspeciesgroupSpecies group of sightingData providerSpecies group of sightingtransect_labelTransectLabel Transect identifier based on Season-Year-LineNumberData providerTransectLabel Transect identifier based on Season-Year-LineNumberangAngle from horizonData provider0280newteamObserver team: 1 = front, 2 = rear, 3 = bothData providerObserver team: 1 = front, 2 = rear, 3 = bothData providertransectetidTransect identifier based on TransectYearMonthDayData providerTransect identifier based on TransectYearMonthDaysst_cSea surface temperature (Celsius)Data provider-9.90110.00sst_fSea surface temperature (Fahrenheit)Data provider0.00150.80geomGeometry 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.Virginia Aquarium & Marine Science Foundation 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 1201Not 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. 2014100120141001 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