Common Bottlenose Dolphin Photographic Identification Mark-Recapture Surveys Collected from Small Boats in the Northwestern Gulf of Mexico (NorTex Catalog) from to 2014-03-29 to 2019-06-28

NOAA National Centers for Environmental Information

Dataset credit

Texas Marine Mammal Stranding Network
National Marine Fisheries Service, Southeast Fisheries Science Center
Errol Ronje, NOAA National Centers for Environmental Information

Contacts

RoleNameOrganization 
Primary contact Errol Ronje NOAA NCEI
Secondary contact Heidi Whitehead Texas Marine Mammal Stranding Network
Data entry Ei Fujioka Duke University

Citation

Ronje, E.I.; H.R. Whitehead, S. Piwetz, K.D. Mullin. 2021. Common Bottlenose Dolphin Photographic Identification Mark-Recapture Surveys Collected from Small Boats in the Northwestern Gulf of Mexico from to 2014-03-29 to 2019-06-28. Data downloaded from OBIS-SEAMAP (https://seamap.env.duke.edu/dataset/2166) on yyyy-mm-dd.

Abstract

As part of the marine mammal stock assessment program of the National
Marine Fisheries Service (NMFS), photographic identification capture mark
recapture data were collected to estimate the abundance of common
bottlenose dolphins (Tursiops truncatus) by the Southeast Fisheries
Science Center, Pascagoula, Mississippi Laboratory, and the Texas Marine
Mammal Stranding Network from 2014-03-29 to 2019-06-28. This dataset
contains spatiotemporal data from the "NorTex" catalog, including visual observations and dorsal fin images for individual dolphins encountered in the coastal and estuarine waters of
north Texas and western Louisiana including East Matagorda Bay, West
Bay, Galveston Bay, and Sabine Lake.

Purpose

The Marine Mammal Protection Act of 1972 requires the National Marine
Fisheries Service (NMFS) to report the status of all marine mammal stocks in
USA waters. The primary purpose of this dataset was to collect common
bottlenose dolphin encounter data for capture-mark-recapture abundance
estimation models and to assess the spatial distribution of the dolphin group
encounters to inform stock assessment reports in three NMFS designated
stock areas: West Bay, Galveston Bay, and Sabine Lake.

Supplemental information

Fin images are not included in the downloadable zipped file.

References

Ronje, E.I.; H.R. Whitehead, S. Piwetz, K.D. Mullin. 2021. Common Bottlenose Dolphin Photographic Identification Mark-Recapture Surveys Collected from Small Boats in the Northwestern Gulf of Mexico from to 2014-03-29 to 2019-06-28. Data downloaded from OBIS-SEAMAP (https://seamap.env.duke.edu/dataset/2166) on yyyy-mm-dd.

Attributes

Overview

This section explains attributes included in the original dataset. OBIS-SEAMAP restricts the attributes available to the public to date/time, lat/lon and species names/counts only. Should you need other attributes described here, you are encouraged to contact the data provider.

Attributes described below represent those in the original dataset provided by the provider.
All attributes are included in the downloadable file (CSV or ESRI File Geodatabase) for "Complete Set of Dataset".

Attributes in dataset

Attribute (table column)Description
oidUnique ID number (generated by OBIS-SEAMAP)
research_areaResearch Area
animal_idAnimal ID assigned by the contributor
latitudeLatitude in decimal degrees
longitudeLongitude in decimal degrees
obs_datetimeDate/time of sighting
image_fileFile names of images taken
sp_obsSpecies name
scientific_nameScientific name
sp_tsnTaxonomic Serial Number added by OBIS-SEAMAP
obs_countNumber of animals (always 1) added by OBIS-SEAMAP
sighting_noSighting No.
sideSide of the fin (L or R)
geomGeometry field added by OBIS-SEAMAP
OBIS-SEAMAP ID2166
Seabirds0
Marine mammals3,273
Sea turtles0
Rays and sharks0
Other species0
Non spatial0
Non species0
Total3,273
Date, Begin2014-03-29
Date, End2019-06-28
Temporal prec.111000
Latitude28.59 - 30.02
Longitude-95.97 - -93.73
Coord. prec.6 decimal digits
PlatformBoat
Data typePhoto ID
EffortN/A
Traveled (km)0
0
Contr. through
Registered2021-10-19
Updated2021-11-09
StatusPublished
Sharing policy CC-BY-NC (All)
Also available in OBIS
GBIF (via DOI)
See metadata in static HTML
See metadata in FGDC XML
See download history / statistics