Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
  • Feedback

    • 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.

    Metadata Updated: April 1, 2024

    As part of the Gulf of Mexico Marine Assessment Program for Protected Species (GoMMAPPS), the Southeast Fisheries Science Center (SEFSC) conducted aerial surveys of the U.S. continental shelf waters (up to the 200-m isobath) in the Gulf of Mexico from 2017-06-29 to 2017-08-17. The survey was designed for a two-team independent visual observer approach with distance sampling to estimate abundance and characterize spatial distribution of marine mammals and sea turtles. This dataset includes marine mammal and sea turtle 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 marine mammal photographs used to aid in species identification

    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 February 29, 2024
    Metadata Created Date January 24, 2022
    Metadata Updated Date April 1, 2024
    Reference Date(s) 2017 (creation), 2021 (publication)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NMFS SEFSC

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date February 29, 2024
    Metadata Created Date January 24, 2022
    Metadata Updated Date April 1, 2024
    Reference Date(s) 2017 (creation), 2021 (publication)
    Responsible Party (Point of Contact, Custodian)
    Contact Email
    Guid gov.noaa.nmfs.inport:65828
    Access Constraints Cite As: Southeast Fisheries Science Center, [Date of Access]: 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 Date Range], https://www.fisheries.noaa.gov/inport/item/65828., Access Constraints: 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., Use Constraints: Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. All marine mammal data and photographs were collected under the National Marine Fisheries Service (NMFS), the Marine Mammal Protection Act (MMPA) and Endangered Species Act (ESA) permit number: NMFS ESA/MMPA Permit No.14450. If a photo displaying a marine mammal is used, please include the permit number in the captions and acknowledge NOAA Fisheries. Cite as: Litz, Jenny; Barry, Kevin; Aichinger Dias, Laura; Rappucci, Gina; Martinez, Anthony; Soldevilla, Melissa; Garrison, Lance; Mullin, Keith. (2021). 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 (NCEI Accession 0243469). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/mdc3-3246. Accessed [date].
    Bbox East Long -82.44092755
    Bbox North Lat 30.412986948
    Bbox South Lat 27.658528425
    Bbox West Long -96.93520934
    Coupled Resource
    Frequency Of Update asNeeded
    Harvest Object Id bf9cb222-88a9-429c-8af2-4384ff1b0b6c
    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": [[[-96.93520934, 27.658528425], [-82.44092755, 27.658528425], [-82.44092755, 30.412986948], [-96.93520934, 30.412986948], [-96.93520934, 27.658528425]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2017-06-29
    Temporal Extent End 2017-08-17

    Didn't find what you're looking for? Suggest a dataset here.