Camera sled and beam trawl data for the Maryland offshore wind areas

Date 2019
Author(s) Cruz-Marrero WilmelieORCID1, Cullen Daniel1, Gay Najja2, Stevens Bradley1
Affiliation(s) 1 : University of Maryland Eastern Shore , USA
2 : Lawrence University, USA
DOI 10.17882/58817
Publisher SEANOE

Offshore wind farms are a crucial component for the improvement of renewable energy in the United States. The Bureau of Ocean Energy Management (BOEM) designated ~170 km2 of shelf area for wind energy development off the coast of Maryland, USA. In order to understand potential environmental impacts of wind turbine installation on the benthic ecosystem within the designated area, we conducted a study to visually characterize bottom habitats and epibenthic communities in the Mid-Atlantic Outer Continental Shelf blocks of the Maryland wind energy area. Seven 5 km long transects were sampled using a towed camera sled with a downward-facing digital camera that captured images at 5 frames∙s-1s.  Additional small-mesh beam trawling was also conducted at selected locations complementary for species identification.. Image data were analyzed using two image selection methods, random and systematic (i.e. video frames were selected at various intervals). For both methods, estimates of community diversity (Hill’s N2) stabilized with sample sizes ranging from 316 to 398 frames. Our results allowed us to define distinct epibenthic communities and bottom habitats that are associated with offshore wind energy sites and to develop a sampling technique for digital images that can be applied to other research programs.

Licence CC-BY-NC-ND
File Size Format Processing Access
Sled and beam trawl counts 235 KB XLS, XLSX Processed data Open access
Data file descriptions 4 KB TEXTE Open access
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How to cite 

Cruz-Marrero Wilmelie, Cullen Daniel, Gay Najja, Stevens Bradley (2019). Camera sled and beam trawl data for the Maryland offshore wind areas. SEANOE.

In addition to properly cite this dataset, it would be appreciated that the following work(s) be cited too, when using this dataset in a publication :

Cruz-Marrero Wilmelie, Cullen Daniel W., Gay Najja R., Stevens Bradley G., Medina Guerrero Antonio (2019). Characterizing the benthic community in Maryland’s offshore wind energy areas using a towed camera sled: Developing a method to reduce the effort of image analysis and community description. PLOS ONE, 14(5), e0215966-.