Dive 4846 second miniDV.(JSL1_4846_2) generated on Characterization of Benthic and Pelagic Habitats and Ecosystems (OE_2005_044); R/V Seward Johnson; August 21, 2005 to August 21, 2005; North Atlantic; Gulf of Mexico; Northern Gulf of Mexico : Operation Deep Scope 2005.
5600 U.S. Highway 1 North Fort Pierce FL USA 34946 physical 561--465-2400-x311 561--468-0757 email@example.com Harbor Branch Oceanographic Institution
Came down on flat sandy bottom 1792 ft. Saw sergestids, bathocyroe, small chauliodus. Headed for coordinates supplied by surface. Eventually switched to SONAR and found rocks with some life - sponges, soft coral, black coral, crabs, epibenthic shrimp with strong eye-glow. Saw shrimp, grabs and fish with red and white banded disruptive coloration. PLaced Eye-in-the-Sea at 1826 ft facing large rock outcropping. Placed Tammy's 2 traps - heading 100 about 100 ft - near another rock outcropping with pinger on float between them. Bottom has very fine silt/sand - easily stirred up and virtually no current so doesn't clear easily. Went back to EITS to take establishing shots. Collected crab in bio box and another in suction sampler bucket.
Dive 4846 - First field test of new Low Light Auto-radiometer, which measured downwelling irradiance from surface to 500 m at 480 nm. Performed very well. First deployment of Eye In The Sea (EITS) which we will leave down for 24 hrs. Site survey.
To look into the ocean with new eyes, in order to provide a comprehensive characterization of the deep-sea benthic environment.Objectives:1. Continue unobtrusive observations with the Eye-in-the-Sea Camera2. Continue studies of ecological roles of fluorescence in marine organisms.3. Quantify the deep-sea environment as it is perceived by its inhabitants.4. Determine the role of polarized light receiption in the pelagic environment.5. Determine the extent of polarized light reception in deep-sea organisms.6. Determine adaptations in deep-sea benthic organisms for increased sensitivity to light.
Johnson-Sea-Link I (Submarine). Cruise (2005)
Seward Johnson (Ship). Cruise
Benthos Mexico, Gulf of.
Corals Habitat Mexico, Gulf of.
Deep-sea animals Mexico, Gulf of Observations.
Deep-sea ecology Mexico, Gulf of.
Deep-sea fishes Mexico, Gulf of Observations.
Underwater exploration Mexico, Gulf of.
Frank, Tamara, 1957- originator.
United States. Office of Ocean Exploration, sponsor, publisher.
National Coastal Data Development Center (U.S.), contributor.
Host Item Entry:
Operation Deep Scope 2005 (Collection)
|NOAA Central Library, Silver Spring, MD||ARCHIVE||QH541.5.D35 O8 2005 ODS05-4846-2||VIDEO||1