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Videos    Manta Catalog    Secrets of the Gulf Expedition


Below is a collection of other video clips that just don't seem to fit any of our other categories.

To view a video, simply click on play button (>) in the video controller at the bottom of the window. A brief description of each video is provided below the window.

R/V Manta

This video shows the R/V MANTA underway during her initial sea trials near Bellingham, WA, where she was built (February 2008).

0:00-0:08 Overhead shot of the R/V MANTA cruising at high speed in an arc, with a white wake trail visible behind it.

0:08-0:17 Overhead shot of the R/V MANTA cruising at high speed from left to right across the screen. As shot widens, a shoreline covered in trees is visible in the background.

0:17-0:29 Overhead shot of the R/V MANTA cruising at high speed toward the camera, then continuing in a straight line away from the camera and into the distance.

0:29-0:51 Overhead shot of the R/V MANTA demonstrating her maneuverability by turning a tight 360 degree turn using her jets.

0:51-0:58 Overhead shot of the R/V MANTA cruising at high speeds across the water from left to right with treed shoreline appearing in the background as the shot widens.

0:58-1:18 Water level shot of the R/V MANTA cruising at slow speed away from the camera and turning to the left, with her name visible across the stern.

Video Length: 1:18

Credit: All American Marine

Salt Dome Formation

This video is an animation of how a salt dome forms, using East Flower Garden Bank as an example.

The video begins by showing layers of sediment on the sea floor. The white layer (third up from the bottom) represents salt deposits caused by evaporation of shallow seas thousands of years ago.

Over time these salt deposits, which are less dense than the layers above them, begin to push upward. This causes the overlying layers to buckle and bulge upward as well. As the dome begins to take shape, other structures appear on top. These represent the beginnings of coral reefs.

Pressures from sediment layers and the ocean above have also resulted in the formation of oil deposits beneath the sea floor. These deposits tend to seep between layers and are often found trapped above and around layers of salt. This is represented by a thick black line forming above the salt layer in the animation.

Evenutally cracks and fissures form in the layers above and below the salt as a result of all the movement. These cracks (vertical black lines) allow some of the liquified salt to seep up to the sea floor forming brine (salt) seeps.

At East Flower Garden Bank, this has resulted in the formation of a large depression that traps the very dense water caused by the brine seep. The resulting "lake" is about 10 inches deep and contains hypersaline (super salty) water at about 200 parts per thousand (ppt). Normal seawater is about 35 ppt. The animation flies up and over the dome and rotates around to show this depression and the channel that eventually allows the brine to mix with regular sea water.

The video then zooms back to the top of the dome and shows the growth of coral reefs in patches on its surface. It then zooms out from the reef, shows the brine seep again, and continues pulling back until a large, three dimentional cube is visible. This cube shows the sloped sea floor, the sea surface about two thirds of the way up, and air above that.

The video ends with a measurement bar showing the depth of each layer in the cube:

  • Water Surface 0m
  • Coral Growth -20m (60 ft)
  • Brine Seep -68m (215 ft)
  • Base of Slope -80m (240 ft)

Video Length: 01:32

Credit: Visual Candy/FGBNMS

Dolphins at Stetson Bank

During a research trip in May 2013, researchers were treated to a visit from a large pod of Atlantic Spotted Dolphins at Stetson Bank. R/V MANTA deckhand Julia O'Hern was able to capture this video footage while snorkeling.

Video Length: 0:32

Credit: FGBNMS/O'Hern

Dolphins Riding Bow Waves of R/V MANTA

On the way to East Flower Garden Bank in August 2016, researcher Michelle Johnston captured this video of spotted dolphins riding the bow waves of R/V MANTA.

Video Length: 0:21

Credit: FGBNMS/Johnston

Secret Reef Exhibit at Tennessee Aquarium

Secret Reef is a 618,000-gallon exhibit at the Tennessee Aquarium in Chattanooga, TN, that represents Flower Garden Banks National Marine Sanctuary. Aquarium staff worked closely with sanctuary staff during the development stages to ensure an accurate representation.

This video takes a look through just one of 33 viewing panels into the exhibit. A variety of tropical fishes, southern stingrays, and sandbar sharks swim by the window as the video progresses.

Video Length: 0:31

Credit: FGBNMS/Drinnen

Stetson Bank Monitoring Sequence

Long-term monitoring has taken place at Stetson Bank since 1993. As part of this monitoring, photos are taken at specific locations on the reef, year after year. then compared to identify changes in species composition on the reef. Every attempt is made to get the same size reef section with the same camera orientation each year, but you will notice slight variations.

This video sequence shows a series of photos taken at Pin 28 at Stetson Bank from 1993 to 2008.

For more information about the challenges of long-term reef monitoring, please visit our Monitoring page.

An educational activity using photo sequences is also available. You can download the Reef Monitoring lesson from our For Teachers page.

Video Length: 0:32

Credit: FGBNMS/Nuttall

weather report observations cool stuff get wet

Juvenile blue tang (fish).  Bright yellow body with irridescent blue marking around eye and at top edge of dorsal fin.
National Marine Sanctuary logo - a stylized whale tail above waves