US Navy marine mammal and sea turtle sightings from aerial surveys, Vieques, Puerto Rico 2000

Andrew DiMatteo, US Navy

Dataset credit

U.S. Department of the Navy


Primary contact Andrew DiMatteo US Dept. of the Navy Naval Facilities Engineering Command Atlantic
Data entry Connie Kot


DiMatteo, A. 2013. US Navy marine mammal and sea turtle sightings from aerial surveys, Vieques, Puerto Rico 2000. Data downloaded from OBIS-SEAMAP ( on yyyy-mm-dd.


Geo-Marine, Inc. (GMI), under contract with the U.S. Deptartment of the Navy, conducted aerial surveys for manatees, other marine mammals, and sea turtles over the surrounding waters, and for sea turtle nests along the beaches of Vieques Island, Puerto Rico. The intent of these aerial surveys was to determine the presence of sea turtles, sea turtle nests, or marine mammals in the areas surrounding the Live Impact Area (LIA), Yellow Beach within the Atlantic Fleet Weapons Training Facility (AFWTF), or other identified exercise locations around Vieques, Naval Station Roosevelt Roads (NSRR), and Offshore areas. These surveys were conducted to comply with the Biological Opinions issued by the U.S. Fish and Wildlife Service (USFWS) and National Marine Fisheries Service (NMFS) in 2000 and 2001, respectively.


Baseline information regarding protected natural resources is critical in order to assess the potential impacts of federal action to those resources. Here, aerial surveys were conducted to provide baseline information on marine mammals, birds, and sea turtles utilizing beaches and the surrounding waters of the island of Vieques, Puerto Rico, USA. Portions of the island are currently being remediated by the U.S. Navy under CERCLA. These data were used in support of developing biological evaluations of Navy activities under CERCLA.

Supplemental information

One sighting record on land was excluded.

December 17, 2013: Nesting data from this study were contributed to the State of the World's Sea Turtles (SWOT) database and can be viewed online. (Click the icon next to the "SWOT #nesting records" > type in "Andrew DiMatteo" in the search box within the "SWOT Nesting Records on Map" window.)


U.S. Department of the Navy. 2001. Aerial surveys for marine mammals, sea turtles, or other protected resources at Vieques Island, Naval Station Roosevelt Roads, Puerto Rico and offshore areas. Internal Technical Report.



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 (created by OBIS-SEAMAP)
totrecnumRecord number (all data)
recnumRecord number (by spreadsheet)
obs_dateDate of observation
start_timeStart time
end_timeEnd time
seastateSea state
airspeedAir speed in original format (knots; multiple valueas may be joined with
altitude_orAltitude in original format (feet; multiple valueas may be joined with
obs_countNumber of animals sighted
sp_obs_originSpecies observed (original)
sp_obsSpecies observed (edited)
sp_tsnSpecies ITIS TSN
obs_time_origTime of observation (original)
obs_timeTime (reformatted as hh:mm:ss)
zoneUTM Zone (20)
notes_originOriginal notes
surveySurvey notes
survey2Survey notes 2
notesNotes (created by OBIS-SEAMAP)
latitudeLatitude (decimal degrees)
longitudeLongitude (decimal degrees)
geomdefinition not provided
Marine mammals32
Sea turtles232
Rays and sharks0
Other species1
Non spatial0
Non species0
Date, Begin2000-02-02
Date, End2000-11-13
Temporal prec.111111
Latitude18.07 - 18.20
Longitude-65.60 - -65.25
Coord. prec.6 decimal digits
Data typeAnimal sighting
Traveled (km)0
Contr. throughNavy
Sharing policy CC-BY (All)
Shared with OBIS
GBIF (via DOI)
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See metadata in FGDC XML
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