Cetacean visual observations using line-transect survey methods onboard the NOAA Ship Gordon Gunter (GU) in the Gulf of Mexico (survey GU0402) from 2004-04-15 to 2004-06-10 (NCEI Accession 0284773)
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title: Cetacean visual observations using line-transect survey methods onboard the NOAA Ship Gordon Gunter (GU) in the Gulf of Mexico (survey GU0402) from 2004-04-15 to 2004-06-10 (NCEI Accession 0284773)
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abstract: The U.S. National Marine Fisheries Service (NMFS) is required to prepare an annual Stock Assessment Report (SAR) for each marine mammal stock to update abundance, stock structure, maximum net productivity, human-caused mortality, potential biological removal (PBR), and status. In the summer of 2004, the Southeast Fisheries Science Center (SEFSC) conducted a marine mammal survey in the northern Gulf of Mexico (GMx). Operations occurred in the waters from 200 m deep seaward to the Exclusive Economic Zone (EEZ) from Brownsville, Texas east into the Straights of Florida. The survey was designed using ship-based, line-transect methods in which experienced marine mammal observers visually located marine mammals, identified the species (to the lowest taxonomic level possible) and counted the number of whales and dolphins sighted along predetermined track-lines. A sighting constitutes a group of marine mammals (whales and dolphins) seen at the same location and time. This dataset includes marine mammal visual observation data and effort points with surveying conditions that can be used in abundance and density modeling per visual line-transect survey protocols. This dataset also includes opportunistic marine mammal photographs and information on biopsy samples collected during the survey.
purpose: The primary goal was to conduct visual line-transect survey for abundance estimation, and distribution of cetaceans in the U.S. waters of the Gulf of Mexico (GoMx).
credit: Related Funding Agency: U.S. Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Marine Fisheries Service (NMFS), Southeast Fisheries Science Center (SEFSC)
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description: Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 18. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords
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keyword: SHIPS, BIG EYE BINOCULARS
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description: Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 18. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords
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Anchor: https://vocab.ices.dk/services/pox/GetCodeDetail/SHIPC/33GG GORDON GUNTER (call sign: WTEO, ICES code: 33GG, 1998)
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title: ICES/SeaDataNet Ship Codes
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Anchor: https://gcmd.earthdata.nasa.gov/kms/concept/a4202721-0cba-4fa1-853f-890f146b04f9 OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN
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Anchor: https://gcmd.earthdata.nasa.gov/kms/concept/75fab119-51a6-4b59-9711-f6c3cd3139db OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO
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description: Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 18. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords
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otherConstraints: Cite as: Martinez, Anthony; Mullin, Keith; Garrison, Lance; Dias, Laura A.; Rappucci, Gina (2023). Cetacean visual observations using line-transect survey methods onboard the NOAA Ship Gordon Gunter (GU) in the Gulf of Mexico (survey GU0402) from 2004-04-15 to 2004-06-10 (NCEI Accession 0284773). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/haac-g960. Accessed [date].
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title: Southeast Fisheries Science Center. (2023). Cruise Results: NOAA Ship Gordon Gunter Cruise GU-04-02 (027) 13 April – 11 June 2004. Southeast Fisheries Science Center (U.S.). https://doi.org/10.25923/467a-0518
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title: NOAA Corps (2004). Underway physical and meteorological data collected aboard NOAA Ship GORDON GUNTER during the Gulf of Mexico Sperm Whale Study from 2004-04-14 to 2004-05-01 (NCEI Accession 0001475). NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0001475.
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eastBoundLongitude: -81.2005
southBoundLatitude: 23.859
northBoundLatitude: 29.4995
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beginPosition: 2004-04-15
endPosition: 2004-10-06
supplementalInformation: Submission Package ID: 0W674Y
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orderingInstructions: Contact NCEI for other distribution options and instructions.
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function: (CI_OnLineFunctionCode) download
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dataQualityInfo: (DQ_DataQuality)
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DateTime: 2023-11-21T16:43:34Z
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description: NCEI Accession 0284773 was revised and v2.2 was published.
rationale: Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession.
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DateTime: 2024-01-29T17:13:00Z
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description: published 2024-01-29T17:13:00Z
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dataQualityInfo: (DQ_DataQuality)
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description: Parameter or Variable: cetacean, VISUAL OBSERVATION, SIGHTING (measured); Units: NA; Observation Category: in situ; Sampling Instrument: SHIPS, BIG EYE BINOCULARS; Sampling and Analyzing Method: The goal of the research was to conduct line-transect surveys using the Distance sampling approach to estimate the abundance and spatial distribution of marine mammals in the oceanic waters of the U.S. Gulf of Mexico. A single-team observer approach was used. Survey tracklines were oriented perpendicular to bathymetry lines and followed a “sawtooth” pattern.; Data Quality Method: Data auditing consisted of making corrections based on notes from the field, plotting trackline points to identify errors made when recording effort status, and verifying sighting data based on data sheets from the field..
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metadataMaintenance: (MD_MaintenanceInformation)
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maintenanceNote: Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness.
maintenanceNote: NCEI Accession 0284773 was revised and a new version of the archival package was published. Updates to existing archival packages may provide additional files or replace obsolete files. The latest version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession. Please see journal.txt in the /about directory for additional details on changes made.
contact: (CI_ResponsibleParty)
organisationName: NOAA National Centers for Environmental Information
role: (CI_RoleCode) custodian
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acquisitionInformation: (MI_AcquisitionInformation)
instrument: (MI_Instrument)
identifier: (MD_Identifier)
code: BIG EYE BINOCULARS
type: BIG EYE BINOCULARS
description: A pair of 25 x 150mm telescopes side-by-side, mounted on a pedestal and aligned to point accurately in the same direction, allowing the viewer to use both eyes (binocular vision) when viewing distant objects. https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/all/b3ecc166-16d5-4144-b23f-49ba59813b72?gtm_keyword=BIG%20EYE%20BINOCULARS>m_scheme=instruments
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code: camera
type: camera
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instrument: (MI_Instrument)
identifier: (MD_Identifier)
code: Distance Sampling
type: Distance Sampling
description: A set of randomly placed lines or points is established and distances are measured to those objects detected by traveling the line or surveying the points. https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/instruments/092cad6c-758d-4d0b-b615-615fc42e08b5?gtm_keyword=Distance%20Sampling>m_scheme=instruments Reference https://distancesampling.org/downloads/distancebook1993/index.html; Buckland, S.T., Anderson, D.R., Burnham, K.P. and Laake, J.L. 1993. Distance Sampling: Estimating Abundance of Biological Populations. Chapman and Hall, London. 446pp.
instrument: (MI_Instrument)
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code: line transect sampling
type: line transect sampling
description: perpendicular distances from a line A line is traversed by an observer and perpendicular distances are measured from the line to each detected object. Reference https://distancesampling.org/downloads/distancebook1993/index.html; Buckland, S.T., Anderson, D.R., Burnham, K.P. and Laake, J.L. 1993. Distance Sampling: Estimating Abundance of Biological Populations. Chapman and Hall, London. 446pp.
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code: photograph
type: photograph
description: still images used as the basis for making parameter determinations
instrument: (MI_Instrument)
identifier: (MD_Identifier)
code: visual estimate
type: visual estimate
description: not an instrument - maybe an observation type
instrument: (MI_Instrument)
identifier: (MD_Identifier)
code: visual observation
type: visual observation
description: not an instrument - maybe an observation type
platform: (MI_Platform)
identifier: (MD_Identifier)
code: NOAA Ship Gordon Gunter
description: Updated information for the vessel GORDON GUNTER from UNITED STATES(US). Name : GORDON GUNTER Country(s) : UNITED STATES(US) (ISO Country Code) Platform Class : 31 Research vessel Call Sign : WTEO IMO : 8835255 Pennant : R 336 Title : NOAA Ship Commissioned Date : 1998-08-28 Current Length : 68.3 Built : 1989-05-12 Previous Name (Notes): Relentless Notes : Built as the U.S. Naval Ship RELENTLESS (T-AGOS 18). Transferred to NOAA in 1993. Information Sources: - http://www.moc.noaa.gov/gu/index.html - http://www.seasearcher.com/lmiu/vessels/overview.htm?vesselID=341240 Confirmed by NOAA on 2010-09-10.
instrument: (missing)
