SEFSC GoMex Oceanic 1993 (W)
NOAA Southeast Fisheries Science Center (SEFSC)

Dataset credit

Southeast Fisheries Science Center, NOAA


Primary contact Lance Garrison NOAA Southeast Fisheries Science Center
Data entry Benjamin Best Duke University



A winter marine mammals survey in Gulf of Mexico was conducted in 1993 by NOAA Southeast Fisheries Science Center to examine the distribution and estimate abundance of cetaceans in U.S. waters. The survey was followed by a similar spring survey in 1993. This dataset contains sightings of not only cetaceans but also other species including sea turtles, fish and shark observed during the ship survey.

During the 31 survey days, 10 species were sighted, including

Atlantic spotted dolphin
Clymene dolphin
Melon-headed whale
Pantropical spotted dolphin
Pygmy sperm whale
Short/Long-finned pilot whale
Sperm whale
Standard Bottlenose dolphin
Striped dolphin

The dataset is accompanied by transect data which is provided as a separate file.


The purpose of this survey is to examine the distribution and estimate abundance of cetaceans in U.S. waters.

Specific objectives of this survey are:

1. Complete a line transect survey of the study area for marine mammals during daylight hours following prescribed transects.

2. Collect ichthyoplankton samples for the Southeast Area Monitoring and Assessment Program (SEAMAP) during the non-daylight hours using neuston, bongo and Tucker trawls.

3. Obtain associated environmental and oceanographic data.

Supplemental information



NOAA Southeast Fisheries Science Center. 1993. Cruise Results; Marine Mammals/Ichthyoplankton Survey; NOAA Ship Oregon II Cruise 93-01 (203).



Attributes described below represent those in the original dataset provided by the provider.
Only minimum required attributes are visible and downlodable online. Other attributes may be obtained upon provider's permission unless otherwise noted below.

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 in dataset provided

Attribute (table column)Description
Marine mammals45
Sea turtles0
Rays and sharks1
Other species180
Non spatial0
Non species1,066
Date, Begin1993-01-06
Date, End1993-02-12
Temporal prec.111111
Latitude26.03 - 29.33
Longitude-96.08 - -87.72
Coord. prec.4 decimal digits
Data typeAnimal sighting
EffortYES (ID: 16)
Traveled (km)4,140
Effort hours246
Sharing policy CC-BY-NC (Minimum)
Also availalbe from iOBIS
See metadata in static HTML
See metadata in FGDC XML
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