Palka, D2013https://doi.org/10.82144/2add47faOBIS-SEAMAP113http://seamap.env.duke.edu/dataset/113OBIS-SEAMAPVersion 1.8.0 Platform: NOAA 57 Twin Otter Aircraft Dates: July 18 - August 21 1998 Location: Inshore areas from 38 deg north latitude on the United States east coast to Cape Breton Island, Nova Scotia, Canada This aerial survey was flown in conjunction with shipboard surveys being conducted during the same time frame. The R/V Abel-J was chartered to conduct line transect surveys offshore from 38 deg N offshore from approximately 40 fathoms to the Gulf Stream, and north to the Northeast Channel east of Georges Bank. The aerial survey covered all inshore areas from the beach to the 40 fathom boundary of the shipboard survey and extended east to Cape Breton Island, Nova Scotia, Canada. The survey was flown using line transect methodology. There were three observers at all times, left bubble window, right bubble window and one observer looking straight down in a belly window position. There were four observer positions, left, right, belly, and on break. Observers rotated positions on the half hour unless the end of a trackline would fall within 5-10 minutes of the half hour interval. A fifth person was the designated recorder and remained at the recording station throughout the flight. The observers reported sightings of all marine mammals, fish, and boats encountered. The marine mammals were identified to species and their angle of inclination (when perpendicular to the aircraft) was measured with an electronic protractor. Angles above 60 deg were recorded with 10° intervals marked on the bubble. The observers scanned from the horizon to the trackline, concentrating their effort from 2 miles inward. The belly window observer was limited to a 28 deg view on both sides of the trackline and these sightings were recorded as the degrees right or left. Weather conditions were recorded at the beginning of each transect and whenever conditions changed during the transect. Conditions recorded include: cloud cover (% cover), Beaufort sea state (recorded in tenths), observer glare (none, slight, moderate, severe), and overall quality of sighting conditions (excellent, good, moderate, fair, poor). Observer positions were recorded at each rotation. Surface water temperature was recorded using an infra-red temperature sensor in the belly of the aircraft and recorded with time every minute. The computers used for sightings data and for the sea surface temperature were synchronized with the GPS for time. The survey was flown at an altitude of 600 feet and at 110 knots over the water. All animals seen within two miles of the trackline were identified to species and counted (aircraft broke from survey effort in cases of uncertain identity). Unidentified animals beyond two miles from the trackline were not examined for species identification. The survey flew either east/west or north/south tracklines with ten mile spacing. These tracklines were planned to cross lines of bathymetry rather than follow them. Survey conditions required Beaufort sea state 3 or less, some small sections of tracklines were conducted up to Beaufort 4, however only if conditions were known to improve to survey conditions on 80% or more of the entire days flight. Flights were planned to center on 1200 hours (noon) to minimize glare for the observers, on some occasions flights were begun earlier or later to minimize sea state, fog conditions or wind. Flights were aborted when observer viewing quality dropped below Fair for two or more observers. Flight duration depended on the aircraft load conditions and transect lengths. On days when the flight would return to the same airport and personal luggage was not transported additional fuel could be carried and survey days of 6 hours were possible. On days when transiting to a new location, flight duration was limited to approximately 5 hours. Some flights were purposely shorter than the maximum when the transect lengths prohibited another full line to be flown. The aerial survey was comprised of eighteen flight days over the survey period, with nearly 11,000 nautical miles of transect lines flown. Three days were aborted early due to weather and observer quality issues and those lines repeated on following survey days. Approximately 79% of the survey was flown in Beaufort 2.0 or less and only 5% in Beaufort 3.1 - 4.0. There were thousands of recorded sightings over the survey and from these there were a total of 4,802 individuals of marine mammals, comprising 17 species. Additionally we counted 315 turtles from three species (loggerhead, leatherback and Kemp's ridleys), and over 5,000 fish, rays and sharks from nine species groups. Sightings of boats, fishing gear, and debris have not been summarized here but are available in the database for interested parties.Estimate abundance for as many species as possible.3/8/06: Data correction - sightings of humpback whale were mistakenly linked to Balaenidae (180531) and are now linked to <i>Megaptera novaeangliae</i> (180530).1998071919980820ground conditionCompleteNone plannedNorth Atlantic Ocean-75.242-60.53644.76637.999 NoneMarine Animal SurveyMarine BiologyMarine mammalsSea turtlesAircraftVisual SightingNoneNorth Atlantic OceanTaxon coveredMarine mammals, seabirds, sea turtlesIntegrated 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 acutorostrataSpeciesBalaenoptera borealisSpeciesBalaenoptera musculusSpeciesBalaenoptera physalusGenusMegapteraSpeciesMegaptera novaeangliaeFamilyBalaenidaeGenusEubalaenaSpeciesEubalaena glacialisSuborderOdontocetiFamilyDelphinidaeGenusDelphinusSpeciesDelphinus delphisGenusGlobicephalaGenusGrampusSpeciesGrampus griseusGenusLagenorhynchusSpeciesLagenorhynchus acutusGenusStenellaGenusTursiopsSpeciesTursiops truncatusFamilyPhocoenidaeGenusPhocoenaSpeciesPhocoena phocoenaFamilyPhyseteridaeGenusPhyseterSpeciesPhyseter macrocephalusOrderCarnivoraSuborderCaniformiaFamilyPhocidaeGenusPhocaSpeciesPhoca vitulinaClassReptiliaOrderTestudinesFamilyCheloniidaeGenusCarettaSpeciesCaretta carettaGenusLepidochelysSpeciesLepidochelys kempiiFamilyDermochelyidaeGenusDermochelysSpeciesDermochelys 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: Palka, D. 2013. NEFSC Aerial Survey - Summer 1998. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/113) 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. Debi PalkaNOAA Northeast Fisheries Science Center mailing and physical address

166 Water St.

Woods HoleMA02543USA 508-495-2000dpalka@whsun1.wh.whoi.edu Relational database NOAA Northeast Fisheries Science Center (NEFSC)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 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.20131122All attributes were measured and recorded during the survey and validated by the data provider.Point 0.0010.001Decimal degrees D_WGS_1984WGS_1984 6378137.000000298.257224 Biogeographic dataBiogeographic dataNot applicablecruiseCruise IDData providerCruise IDData provideryearYear of observationData provider19981998monthMonth of observationData provider78dayDay of observationData provider131timeTime of the observation (local time)Data provider10:02:469:58:32latLatitude of observationData provider37.99944.766longLongitude of observationData provider-75.242-60.536speciesSpecies observedData providerSpecies observedsizebNumber of animalsData provider1999transectTransect IDData providerTransect IDlegLeg IDData providerLeg IDblankkept blankData providerkept blankgeomGeometry field added by OBIS-SEAMAPData providerGeometry field added by OBIS-SEAMAPoidUnique ID number (generated by OBIS-SEAMAP)Data providerUnique ID number (generated by OBIS-SEAMAP)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.NOAA Northeast Fisheries Science Center (NEFSC) 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 113Not 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. 20160331 Ei Fujioka Nicholas School of Environment, Duke Univ.mailing and physical address

LSRC Building Room A328

DurhamNC27708USA 919-613-8021 efujioka@duke.edu FGDC Content Standards for Digital Geospatial MetadataFGDC-STD-001-1998local time http://www.nbii.gov/Biological Data Profile 20160331