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Summary for Field Activity Number 1982-026-FA

Alternate Leg ID: Cruise J-143 II; JSL dives 1233-1241

Area of Operations: Hudson Canyon, North Atlantic continental shelf, United States, North America, North Atlantic

Dates: July 22, 1982 to July 29, 1982

Objectives: Assess the importance of erosion by biological organisms on the outer continental shelf around the head of Hudson Canyon by surveying tilefish burrows via sidescan sonar (distribution mapping) and submersible observation.

Type of Activity: Surveying, observing

Information to be derived: Sidescan survey and observation data

Summary: Seismic survey equipment deployed and recovered at multiple locations. Sidescan survey data collected and observations in JOHNSON SEA-LINK noted. Data collected include video, still photos, audio transcripts, temperature data, current data, 3.5 kHz profiles, and sidescan sonar profiles.

USGS Project Number:

Contact: Dave Twichell (

Map for Area of Operations :

Map of field activity boundary.

Platform Info:
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