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DUML Vessel-Based Surveys for monitoring of proposed Onslow Bay USWTR site
Contact: Urian, Kim

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Availability: Creative Commons License This dataset is licensed under a Creative Commons Attribution 4.0 International License.

Description
Data of surveys performed in Onslow Bay to estimate density and document distribution and seasonal residency of marine mammals and sea turtles in the proposed USWTR. more

The United States (US) Navy has proposed constructing an Undersea Warfare Training Range (USWTR) along the US Atlantic coast. The preferred site is an area of 1,713 km2 in Onslow Bay, 87 km from the coast of North Carolina. We have established a monitoring program designed to estimate density and document distribution and seasonal residency of marine mammals and sea turtles in the proposed USWTR. We have established ten 40 nm long transect lines, spaced approximately 5 nm apart. These ten transect lines are surveyed by both shipboard (Duke University Marine Lab) and aerial platforms (conducted by University of North Carolina Wilmington). The survey area incorporates a variety of habitats from shallow waters of the shelf to the continental slope; the Gulf Stream meanders through the eastern portion of the survey area, flowing towards the northeast. The surveys began in June 2007 and are on-going. The primary objectives of these surveys are to:

  1. document species occurrence, estimate densities, and examine patterns of residency of marine mammals and turtles in the defined study area,
  2. conduct seabird counts concurrent with the visual surveys, and
  3. supplement the visual surveys with acoustic monitoring using a towed hydrophone array.

The towed array will facilitate compilation of an acoustic library of species-specific recordings. This is a collaborative project with University of North Carolina Wilmington and the Research Unit for Wildlife Population Assessment, Centre for Research into Ecological and Environmental Modelling, University of St. Andrews, Scotland.


Scope
Themes:
Biology > Mammals, Biology > Reptiles
Keywords:
Marine, A, North Atlantic, Caretta caretta, Delphinidae, Dermochelys coriacea, Globicephala Lesson, 1828, Grampus griseus, Stenella Gray, 1866, Steno bredanensis, Tursiops truncatus (Montagu, 1821)

Geographical coverage
A, North Atlantic [Marine Regions]

Temporal coverage
7 June 2007 - 10 October 2010

Taxonomic coverage
Caretta caretta (Linnaeus, 1758) [WoRMS]
Delphinidae Gray, 1821 [WoRMS]
Dermochelys coriacea (Vandelli, 1761) [WoRMS]
Globicephala Lesson, 1828 [WoRMS]
Grampus griseus (G. Cuvier, 1812) [WoRMS]
Stenella Gray, 1866 [WoRMS]
Steno bredanensis (G. Cuvier in Lesson, 1828) [WoRMS]
Tursiops truncatus (Montagu, 1821) [WoRMS]

Contributors
Duke University; Nicholas School of the Environment and Earth Sciences; Marine Laboratory, moredata owner

Related datasets
Published in:
OBIS-SEAMAP: Spatial Ecological Analysis of Megavertebrate Populations, more

URLs

Dataset information:

Dataset status: In Progress
Data type: Data
Data origin: Monitoring: field survey
Metadatarecord created: 2012-11-22
Information last updated: 2012-11-22
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