Photo & Video Log
This page contains photos and videos taken during the Cayman Islands Twilight Zone 2007 exploration, which took place May 21 to 31, 2007. Click on any image to view a larger version and for additional information. If a movie camera icon is present, a QuickTime video can be viewed by clicking on the image. Other video formats are available on the linked pages. If a Podcast icon is present, a video or audio file is available for download or you can subscribe to the RSS Podcast Feed.
If a slideshow icon is present, a visual log of exploration images can be viewed. You can scroll through them one by one, or select the play button for an automatic slideshow.
(HR) = "High Resolution" images available.
Video & Slideshows
See how histology helps scientists conclude what kind of sponge they have discovered. (Quicktime, 3.8 Mb.)
Scientists explain predator deterrence through bioassays of the sharpnose puffer fish. (Quicktime, 4.3 Mb.)
Sharpnose puffer fish in wetlab during bioassay testing to see how the fish reacts to the various chemicals compounds. (HR)
The Caribbean tunicate, Ecteinascidia turbinata, provides a good example of the biomedical potential of marine natural products. (HR)
One of the more common deep reef corals on the Little Cayman walls is Mycetophyllia spp. (HR)
The precious black corals are common on the wall faces, but we rarely find them above 150 foot (45.7 meter) depth. (HR)
The sharpnose puffer fish, Canthigaster rostrata, our model "lab rat" for predator deterrence assays in the laboratory.
Some sponges, like this vase sponge (Callyspongia plicifera), do not host a microbial community that is substantially different from that found in the surrounding water column. (HR)
Tufts of filamentous cyanobacteria form large accumulations of individual microscopic cells. (HR)
A frequently found cyanobacteria overgrowing benthic organisms, such as this soft coral. (HR)
Montastrea cavernosa exhibiting orange and green fluorescence in the mouth of the polyps. (HR)
The liver sponge produces a series of important chemical compounds that deter predators. (HR)
Little Cayman has some of the steepest drop-offs in the Caribbean, because it is perched on the edge of the 7,500-meter-deep Cayman Trench. (HR)
This lettuce coral, Agaricia sp., is one of the most common corals on the reefs of Little Cayman. (HR)
Black band disease was one of the first coral diseases identified back in the 1970s, and it remains one of the most prevalent diseases on reefs worldwide. (HR)
The zones profile of a typical coral reef. The deep fore-reef, or Twilight Zone (from about 50- to 150-meter depth), has rarely been explored. (HR)
The biodiversity of vertical walls can be impressive, as this photo from the Indo-Pacific demonstrates. (HR)
As light becomes limiting in the deep reef, fewer hard corals are able to survive. (HR)
Technical diving research team with assorted tanks, carrying different mixtures of Trimix. (HR)
A more recent version of the rebreather allows this diver to swim over a Caribbean reef without bubbles. (HR)
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