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Marine Georesources &GeotechnologyPublication details, including instructions forauthors and subscription information:http://www.tandfonline.com/loi/umgt20

Non-Energy Resources,Connecticut Coastal Waters,Year 9 and 10 ActivitiesRalph S. Lewis, Mary L. Digiacomo-Cohen, NancyFriedrich Neff, Richard HydePublished online: 30 Nov 2010.

To cite this article: Ralph S. Lewis, Mary L. Digiacomo-Cohen, Nancy FriedrichNeff, Richard Hyde (1999) Non-Energy Resources, Connecticut Coastal Waters, Year9 and 10 Activities, Marine Georesources & Geotechnology, 17:2-3, 123-123, DOI:10.1080/106411999273774

To link to this article: http://dx.doi.org/10.1080/106411999273774

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Non-Energy Resources, Connecticut CoastalWaters, Year 9 and 10 Activities

RALPH S. LEWISMARY L. DiGIACOMO-COHENNANCY FRIEDRICH NEFFRICHARD HYDE

Connecticut Department of Environmental Protection

Long Island Sound Resource Center

Groton, Connecticut, USA

The Connecticut effort in year 9 of the Continental Margins Program concentratedon a 13.6-mi2 area south of the Housatonic River. This area was chosen for aside-scan sonar survey because it lies on and adjacent to the bathymetric expressionsof two fairly large, subcropping, potential sources of coarse material. Previousseismic work in the area indicated that outcrops or subcrops of these potentialsource deposits could be delineated using their bathymetric expression. Owing to thelimited resolution of the seismic data, a correlation between bottom type andunderlying source deposits could not be made with the seismics alone. Results fromthe November 1993 side-scan survey show that although the source deposits havediscernible bathymetric expressions, they are not cropping out as much as expected.As a result, bottom type is not necessarily determined by subcroppingdeposits in thisparticular area.

Year 10 work was concentrated in Fishers Island Sound, where three areas ofpotential interest for near-shore gravel resources had previously been identified.These areas were surveyed, during the spring of 1996, using the RoxAnn SeabedClassification System. A small video camera and a Van Veen grab sampler wereused to calibrate and verify the RoxAnn data. Although previous sampling hadindicated the presence of gravel or gravelly sediment in all of the survey areas, theRoxAnn results showed less gravel than anticipated. Vibrant eelgrass beds and otherhabitat indicators were detected in all of the survey areas. Given the variablesediment results, and the high habitat potential of the areas surveyed, the likelihoodof developing a sand and gravel supply from the near shore of Fishers Island Soundappears quite low.

Address correspondence to Ralph S. Lewis, Connecticut Department of EnvironmentalProtection, Long Island Sound Resource Center, UCONN-Avery Point, 1084 ShennecossettRoad, Groton, CT 06340-6097.

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Marine Georesources and Geotechnology, 17:123, 1999Copyright Q 1999 Taylor & Francis

1064-119X r99 $12.00 q .00

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