Gulf of Mexico Marine Mammal Assessment Vessel Surveys

Metadata Updated: February 8, 2018

These data sets are a compilation of large vessel surveys for marine mammal stock assessments in the Gulf of Mexico from 1991 to the present. These are designed as line-transect surveys which typically follow a double saw-tooth pattern covering waters between the continental shelf break (approx. 200m depth) and the U.S. Economic Exclusivity Zone. Visual survey data are collected following standard protocols and are intended for analysis using the line-transect Distance method to provide estimates of abundance for marine mammal stocks within the survey area. Each survey includes a collection of data sets including visual survey data (survey effort and sightings of marine mammals and other species), passive and active acoustics data, sample collection information, and physical oceanographic data. These data have been used to develop estimates of population size for target species for use in annual Marine Mammal Protection Act stock assessment reports.

Access & Use Information

Downloads & Resources


Metadata Date July 18, 2017
Metadata Created Date March 21, 2016
Metadata Updated Date February 8, 2018
Reference Date(s) (publication)
Frequency Of Update

Metadata Source

Harvested from NOAA CSW Harvest Source

Additional Metadata

Resource Type Dataset
Metadata Date July 18, 2017
Metadata Created Date March 21, 2016
Metadata Updated Date February 8, 2018
Reference Date(s) (publication)
Responsible Party (Point of Contact); Southeast Fisheries Science Center (Custodian)
Contact Email
Access Constraints Access Constraints: None | Use Constraints: Disclaimer - While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
Bbox East Long -80.5
Bbox North Lat 31
Bbox South Lat 24.5
Bbox West Long -98
Coupled Resource
Frequency Of Update
Guid gov.noaa.nmfs.inport:26498
Harvest Object Id de6e72db-cd98-4be0-8570-fa190ca188c1
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Metadata Language eng
Metadata Type geospatial
Progress onGoing
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 1992

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