USGS Open-File Report 2005-1162, Sidescan-Sonar Imagery and Surficial Geologic Interpretation of the Sea Floor off Bridgeport, Connecticut
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Figure 17. Detailed view of trawl marks in the sidescan-sonar mosaic from the Bridgeport, Connecticut, study area. Looped curvilinear trawl marks result from commercial hard-shell clam fishing. Location of this view is shown in figure 10.