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Summary Information for Field Activity 2005-002-FA

Area of Operations: Madison-Swanson Fishery Reserve, Florida, west Florida Shelf, United States, Gulf of Mexico, North America, North Atlantic

Dates: March 21, 2005 to March 28, 2005

Chief scientist: Kathy Scanlon

   Christopher Koenig, Chief Scientist, Florida State University

Objectives: Collect sediment and rock samples from shelf-edge paleoshorelines and video grouper spawning habitat using ROV and mixed-gas SCUBA divers.

Type of Activity: Sampling; Photography; Video; ROV; SCUBA diving;video
SCUBA diving

Information to be derived: Age dates

Summary: The ROV was deployed at 19 sites both within the Madison Swanson Fishery Reserve and at unprotected areas outside the reserve. Video data and still photographs were collected at each site. At 4 sites Technical SCUBA divers, using mixed gas, were sent to the sea floor to collect rock samples with chisels and sledges. A total of 22 rock samples (most several inches to a foot in diameter) were collected. They will be analyzed for mineralogic composition and if possible dated and environment of deposition determined. The pre-cruise plan had included sediment and rock sampling in the Steamboat Lumps Fishery Reserve, but those goals were not achieved due to time lost to weather and equipment problems (ROV cable was caught in ship's screw and damaged, requiring retermination). Video data will be used by FSU collaborators to assess health of grouper spawning populations. Water samples were taken from inside a solution hole at one site and tested for salinity, which was 37 - 37.5 ppt, the same as the ambient water salinity measured about 10 feet above the sea floor. No water samples were saved. No sediment samples were collected.

Contact: Julie Knisel (

InfoBank: uses the identifier L-1-05-GM. Visit this site for more information.

Related Links:

Click to get Google Software - Download 05002.kml to view this field activity in Google Earth

Platform Info:

Publications resulting from these data

Scanlon, Kathryn M., Waller, Rhian G., Sirotek, Alexander R., Knisel, Julia M., O'Malley, John J., and Alesandrini, Stian,2010, USGS cold-water coral geographic database; Gulf of Mexico and western North Atlantic, Version 1.0: U.S. Geolgical Survey Open-File Report 2008-1351, CD-ROM. (Also available at

Coleman, Felicia C., Koenig, Christopher C., Scanlon, Kathryn M., Heppell, Scott, Heppell, Selina, and Miller, Margaret W.,2010, Benthic habitat modification through excavation by red grouper, Epinephelus morio, in the northeastern Gulf of Mexico: The Open Fish Science Journal, v. 3: p. 1-15. (Also available at

Data Types and Locations:


Area maps and ship's track.


grab samples



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