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    • Cetacean visual observations using line-transect survey methods onboard the NOAA Ship Gordon Gunter (GU) in the Gulf of Mexico, for the Vessel Surveys for Abundance and Distribution of Marine Mammals and Seabirds project (VSAD survey GU2402) from 2024-06-03 to 2024-08-12 (NCEI Accession 0299731)

    Metadata Updated: June 1, 2025

    As part of the Vessel Surveys for Abundance and Distribution of Marine Mammals and Seabirds (VSAD) project, the Southeast Fisheries Science Center (SEFSC) conducted a shipboard survey of the U.S. oceanic waters of the Gulf of Mexico out to the Exclusive Economic Zone (EEZ) from 2023-06-22 to 2023-08-14. The survey was designed for a two-team independent visual observer approach with distance sampling to estimate the detection probabilities for marine mammal sightings. A sighting constituted a single or 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 biopsy samples, and non-marine mammal sightings (a.k.a. occurrences) such as sea turtles.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Date May 15, 2025
    Metadata Created Date June 1, 2025
    Metadata Updated Date June 1, 2025
    Reference Date(s) 2025-01 (publication)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NMFS SEFSC

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date May 15, 2025
    Metadata Created Date June 1, 2025
    Metadata Updated Date June 1, 2025
    Reference Date(s) 2025-01 (publication)
    Responsible Party (Point of Contact, Custodian)
    Contact Email
    Guid gov.noaa.nmfs.inport:74029
    Access Constraints Cite As: Southeast Fisheries Science Center, [Date of Access]: Cetacean visual observations using line-transect survey methods onboard the NOAA Ship Gordon Gunter (GU) in the Gulf of Mexico, for the Vessel Surveys for Abundance and Distribution of Marine Mammals and Seabirds project (VSAD survey GU2402) from 2024-06-03 to 2024-08-12 (NCEI Accession 0299731) [Data Date Range], https://www.fisheries.noaa.gov/inport/item/74029., Access Constraints: None, Use Constraints: Cite as: Garrison, Lance; Rappucci, Gina; Litz, Jenny; Aichinger Dias, Laura; Sinclair, Carrie (2025). Cetacean visual observations using line-transect survey methods onboard the NOAA Ship Gordon Gunter (GU) in the Gulf of Mexico, for the Vessel Surveys for Abundance and Distribution of Marine Mammals and Seabirds project (VSAD survey GU2402) from 2024-06-03 to 2024-08-12 (NCEI Accession 0299731). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/ztyd-n418. Accessed [date], Distribution Liability: Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
    Bbox East Long -83.25461
    Bbox North Lat 30.054395
    Bbox South Lat 24.29893
    Bbox West Long -96.5376233
    Coupled Resource
    Frequency Of Update asNeeded
    Harvest Object Id a2c57d00-6957-4ac1-89fd-0b9e1657838e
    Harvest Source Id ca759a40-507d-4d0c-8f8c-64b3c5e05066
    Harvest Source Title NMFS SEFSC
    Licence NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
    Lineage
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-96.5376233, 24.29893], [-83.25461, 24.29893], [-83.25461, 30.054395], [-96.5376233, 30.054395], [-96.5376233, 24.29893]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2024-06-03
    Temporal Extent End 2024-08-12

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