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U.S. and Canadian Scientists Map Georges Bank Geology and Habitats

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Page Valentine (USGS, Woods Hole, MA) and Steve Fromm (National Marine Fisheries Service, Sandy Hook, NJ) participated in a cruise of the Canadian research vessel CCGS Hudson in June 2002 to Georges Bank in the Gulf of Maine, off the coast of Nova Scotia. They are collaborating with Geological Survey of Canada (GSC) colleagues Brian Todd and Vladimir Kostylev, who have similar research interests. They are mapping the seabed geology and biological habitats of areas that have been imaged during recent multibeam surveys carried out by the GSC.

The cruise was spent ground-truthing the multibeam survey of the Canadian part of Georges Bank, where the seabed is similar in most respects to the unmapped U.S. part. Ground-truthing methods included video and photo transects and bottom sampling, methods also employed by the USGS and the National Marine Fisheries Service in their work in the Gulf of Maine. Geophysical surveys (sidescan sonar and subbottom profiling) were conducted in selected areas to aid in the interpretation of glacial features observed in the multibeam images. In addition, Valentine, Todd, and Kostylev are collaborating in the development of a habitat-classification system for the Gulf of Maine. This cruise was the first opportunity to test it in the field.

Related Web Sites
Gulf of Maine Information System
U.S. Geological Survey (USGS)
National Marine Fisheries Service
National Oceanic and Atmospheric Administration (NOAA)
Geological Survey of Canada (GSC)
Government of Canada (GoC)

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Southern California Offshore Hazards Survey

Mapping Georges Bank

Research Ground Water Diesel Fuel Contamination

Parasites as Indicators of Coastal-Ecosystem Health

Outreach Florida's Hillsborough River

Climate-Change Effects Lecture

Meetings Coral-Reef Meeting

usSEABED - Seabed Characteristics

Awards Lake Mead Poster

von Huene Receives Prestigious Award

Staff & Center News Hapke's Thesis Defense

New WHFC Employees

WHFC Summer Interns

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