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  • Added 15 Sep 2016

These data represent densities of gulls across the marine waters off the coast of South Carolina, as surveyed between 2008-2014. U.S. Fish and Wildlife Service surveys were performed in February, March, August, and October and include wintering sea duck surveys (2008-2011), Atlantic Marine Assessment Program for Protected Species (AMAPPS) surveys (2010-2011, 2012|x2|, 2014), and a South Carolina and Georgia Coast survey (2012). Across these ten surveys, gulls were counted along transects and grouped into various distances (in nautical miles) from the coast. Species counts were then aggregated across surveys by month and distance from coast. Densities (birds per square kilometer) were calculated by dividing the total species count by the total area surveyed for a given month and distance from the coast. Density standard deviations are included to show the variation in density across surveys of a given month and distance from the coast. The number of surveys performed and surveys in which gulls were present are also provided.

© U.S. Fish and Wildlife Service
This layer is a component of South Carolina Marine Bird Density.

This map service includes data layers being used by the South Carolina Renewable Energy Task Force in their decision making process.

These data represent densities of marine bird species across the marine waters off the coast of South Carolina, as surveyed between 2008-2014. U.S. Fish and Wildlife Service surveys were performed in February, March, August, and October and include wintering sea duck surveys (2008-2011), Atlantic Marine Assessment Program for Protected Species (AMAPPS) surveys (2010-2011, 2012|x2|, 2014), and a South Carolina and Georgia Coast survey (2012). Across these ten surveys, marine birds were counted along transects and grouped into various distances (in nautical miles) from the coast. Species counts were then aggregated across surveys by month and distance from coast. Densities (birds per square kilometer) were calculated by dividing the total species count by the total area surveyed for a given month and distance from the coast.

NOAA provides the information “as-is” and shall incur no responsibility or liability as to the completeness or accuracy of this information. NOAA assumes no responsibility arising from the use of this information. For additional information, please contact the NOAA Coastal Services Center (csc.noaa.gov/contact/contactForm.htm).

© MarineCadastre.gov

Information

Copyright Copyright may apply. Please check the source for more information.
RegionsTybee Island-Wilmington, Myrtle Beach, Waccamaw, Mount Pleasant, Johns Island, James Island, Edisto Island, St. Helena, Hilton Head Island
MetadataDublin Core

Technical Details

Layer ID 20887
Data type Vector multilinestring
Feature count 3343
Attributes Density_birds_sq_km, Standard_Deviation_Density, Bird_Count, Surveys_with_Birds_Present, Survey_Area_sq_km, Distance_Bin, Number_of_Surveys_Flown, Month, Latitude_Transect,
Services Vector Query API

History

SourceNone
Added 15 Sep 2016 ago
Last checked 1 Sep 2018 ago
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