66305 Entity Published / External 65828 Cetacean and sea turtle visual observations using line-transect survey methods aboard a NOAA DeHavilland DHC-6 Twin Otter (TO) aircraft in the Gulf of Mexico, during the Gulf of Mexico Marine Assessment Program for Protected Species (GoMMAPPS survey TO17Su) from 6/29/2017 to 8/17/2017. Data Set Completed 2021-12 Non-mammal (cetacean) opportunistic occurrences (ex. Sea turtles, rays, sharks) with calculated perpendicular distances for the forward team (T1): non-marine mammal occurrences; main goal is to provide occurrences, attributes, location, and distance from platform Non-mammal occurrences (e.g. sea turtles, fish) matched between teams can be cross-referenced via the matchedOccurrenceID. Matches are based on the following criteria: time between occurrences was < 15 seconds, occurrences were seen on the same side of the plane (when known), angle differed <= 15 degrees, and individualCount was equal. If present, other types of non-mammal occurrences are recorded opportunistically and not matched across teams. Data Table Yes Non-mammal (cetacean) opportunistic occurrences (ex. Sea turtles, rays, sharks) with calculated perpendicular distances for the forward team (T1): 10 surveyEventID Character 6 6 Yes No Active Unique identifier to a survey (vessel or aircraft based) event. For vessel survey: composed of the vessel's acronym followed by a 2-digit survey year and a 2-digit consecutive mission-number on that vessel (a.k.a cruise code). Cruise name / Cruise Number Made up of a combination of a two character Boat Abbreviation : GU = Gordon Gunther a two digit year: 18 for 2018 a two digit cruise number: 01 for first cruise of the year 20 eventID numeric Yes No Active Unique numeric identifier for each survey effort point recorded at regular time intervals. For vessel surveys: approximately every 30 seconds. For aerial surveys: approximately every 10 seconds. This is the indexing number that allows each marine mammal sighting, non-mammal occurence and cue to be linked to the effort points. See also dwc:eventID 50 occurrenceID numeric 4 Yes Yes Active The unique identifier for the Occurrence (non-marine mammal sighting). 55 matchedOccurrenceID Numeric 6 Yes No Active The unique identifier assigned to the matched Occurrence (non-marine mammal sighting) from the other survey team. Sightings were matched if time between sightings was < 15 seconds, if seen on same side of plane (when known), if SightingAngle differed <= 15 degrees, and individualCount was equal. N/A The animal was seen by one of the two people. but not both 60 occurrenceAttributes character 80 Yes No Active A list (concatenated and separated) indicating the type and description of the Occurrence (non-marine mammal sighting). Usually this is a description of an organism, but need not be so 70 observationLocation character 1 Yes No Active Description of where on the vessel the observer was located when the animal was first detected. For vessel survey: 1=vessel's Flying Bridge (FB), 2=vessel's Bridge Wing (BW) (a.k.a. bridge deck). 80 onEffort character 1 Yes No Active Effort status designating if observers were on effort (e.g. observers actively scanning for marine mammals through the big eye binoculars with the vessel steadily cruising on the trackline) or off effort (e.g. observers searching naked eyed, whenever the ship was maneuvering and turning onto a new trackline, if other operations were taking place, during bad weather and whenever observers were not actively searching for cetaceans through the big eyes) at the moment of data recording. Y=Yes (on effort), N=No (off effort). For vessel survey: #1=vessel's Flying Bridge, #2=vessel's Bridge Wing (a.k.a. bridge deck). Y,N 105 verticalAngle Numeric 3 Yes No Active Angle from the plane to the sighting measured with a digital inclinometer. NA Not Available 107 verticalIncrement Character Yes No Active Interval for the sighting based on markings on the belly port splitting the window into sections with numbers from 1 to 4 and letters to designate the left (L) or right (R) side in relation to the plane, with 1 being closest to the center of the window, i.e., closest to the trackline. Observers record the section of the window when the sighting is directly under the aircraft. NA Not Available 1L, 2L, 3L, 4L, 1R, 2R, 3R, 4R 150 sightingDistanceInMeters Numeric Yes No Active Radial distance calculated based on the distance reading (reticle or meters) and the observationHeight (Lerczak and Hobbs, 1998. Calculating sighting distances from angular readings during shipboard, aerial, and shore-based marine mammal surveys. Marine Mammal Science, Vol. 14(3):590-599) 170 observationHeight numeric Yes No Active Height in meters of each observationLocation (for vessel survey: flying bridge or bridge wing) from the water surface to the big eyes binoculars at an average's adult height. Measurement is specific to each platform (vessel). meters 180 platformLatitude Numeric Yes No Active The latitude of the platform at the moment of data recording. degrees latitude 190 platformLongitude Numeric Yes No Active The longitude of the platform at the moment of data recording Degrees Longitude 192 Behavior character Yes No Active The behavior shown by the subject at the time the sighting was recorded. 0=Not Observed, 1=At Surface, 2=Submerged, 3=Diving. NA = Not applicable 197 individualCount Numeric Yes No Active The number of individuals present at the time of the Occurrence (non-marine mammal sighting). 205 eventdate time Yes No Active Local date-time during data recording. YYYY-MM-DDHH24:MN:SS 207 eventDateTimeZone Numeric 2 Yes No Active Number Of Hours From Greenwich meantime YYYY-MM-DDHH24:MN:SS 209 typeVLTS character Yes No Active One-character string to flag only the initial sighting records which can be used in density and abundance estimation. Opportunistic and subsequent sighting records can be included in the dataset, but these are easily identified from this term for exclusion from abundance and density modeling. The fixed vocabulary terms are: F = first observation sighting on transect, O = opportunistic sighting, S = subsequent sighting either on or off transect, Null = for position-only records or non-VLTS datasets. 210 platformVLTS character 1 1 Yes No Active One-character string to flag survey platform type for visual line transect surveys. For aerial surveys: All records flagged “A” For boat-based surveys: All records flagged “B”. 220 geodeticDatum character Yes No Active The ellipsoid, geodetic datum, or spatial reference system (SRS) upon which the geographic coordinates given in decimal Latitude and decimal Longitude as based. 230 higherInstitutionCode Character Yes No Active Institution codes, in the form of abbreviated institution names, separated by semicolons, that define the hierarchy of institutions within which the data originator operates. Includes the originating institution as the lowest level (rightmost) code. 240 platformAttributes character Yes No Active Model, name and/or other proper characteristics of the platform where the survey was conducted. For vessel: e.g. NOAA Ship Gordon Gunter, NOAA Ship Pisces. For aerial survey: e.g. NOAA De Havilland DHC-6-300 Twin Otter. 250 relatedProjectProgram character 100 Yes No Active Official project and/or program under which the survey was conducted (e.g. AMAPPS, GoMMAPPS). If applicable. Data Steward 2021 Person Litz, Jenny Jenny.Litz@noaa.gov 75 Virginia Beach Drive Miami FL 33139 305-361-4224 305-365-4102 Distributor 2021 Organization NOAA National Centers for Environmental Information NCEI ncei.info@noaa.gov https://ror.org/04r0wrp59 https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. Online Resource Metadata Contact 2021 Person Dias, Laura A laura.dias@noaa.gov https://orcid.org/0000-0001-9378-4577 75 Virginia Beach Drive Miami FL 33149 (305) 361-4269 https://orcid.org/0000-0001-9378-4577 ORCID Page Laura Dias Online Resource Originator 2018 Organization Southeast Fisheries Science Center SEFSC https://ror.org/0396y0w87 75 Virginia Beach Drive Miami FL 33149 USA (305)361-5761 https://www.fisheries.noaa.gov/about/southeast-fisheries-science-center About SEFSC Online Resource 8:00 a.m. - 4:30 p.m. EST Point of Contact 2021 Person Rappucci, Gina gina.rappucci@noaa.gov https://orcid.org/0000-0001-5828-4024 75 Virginia Beach Drive Miami FL 33149 (305) 361-4283 Point of Contact 2021 Person Dias, Laura A laura.dias@noaa.gov https://orcid.org/0000-0001-9378-4577 75 Virginia Beach Drive Miami FL 33149 (305) 361-4269 https://orcid.org/0000-0001-9378-4577 ORCID Page Laura Dias Online Resource Principal Investigator 2018 Person Garrison, Lance Lance.Garrison@noaa.gov 75 Virginia Beach Dr Miami FL 33149 305-361-4488 305-361-4478 8:00 AM - 4:30 PM EST/EDT Principal Investigator 2018 Person Litz, Jenny Jenny.Litz@noaa.gov 75 Virginia Beach Drive Miami FL 33139 305-361-4224 305-365-4102 Principal Investigator 2018 Person Mullin, Keith D keith.d.mullin@noaa.gov https://orcid.org/0000-0002-4094-9718 3209 Frederic St. Pascagoula MS 39568 228-549-1632 228-769-9200 Principal Investigator 2018 Person Barry, Kevin kevin.barry@noaa.gov 3209 Frederic St. Pascagoula MS 39568 228-549-1608 228-769-9200 Publisher 2021 Organization NOAA National Centers for Environmental Information NCEI ncei.info@noaa.gov https://ror.org/04r0wrp59 https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. Online Resource https://www.nodc.noaa.gov/archive/arc0191/0243469/1.1/data/0-data/TO17Su_NCEI_DataPackage/NOAA_SEFSC_GoMMAPPS_TO17Su_VisualSightingData/NOAA_SEFSC_GoMMAPPS_TO17Su_T2_NonMammals_20211118.csv 2021 Organization NOAA National Centers for Environmental Information https://ror.org/04r0wrp59 NOAA_SEFSC_GoMMAPPS_TO17Su_T2_NonMammals_20211118.csv non marine mammals sightings 2021-12-07 20:23 159K 2021-12-07T20:23:00 csv CSV - Comma Separated Values (Text) 159K Uncompressed Chked Viruses Inapp Content gov.noaa.nmfs.inport:66305 Lee Weinberger 2021-12-31T12:15:44 SysAdmin InPortAdmin 2026-03-04T19:17:26 2022-09-23 Southeast Fisheries Science Center SEFSC 75 Virginia Beach Drive Miami FL 33149 USA (305)361-5761 www.sefsc.noaa.gov 8:00 a.m. - 4:30 p.m. EST 1001 Public No 2022-01-03 1 Year 2023-01-03