Posted by Chris on July 11, 2004 at 22:07:55:
This LA Times article talks about a NOAA fish survey at Dry Tortugas National Park in Florida. One interesting bit is about a device used to measure the size of fish.
"One innovative gadget used, the brainchild of scientist Jiangang Luo of the University of Miami, was designed to help the counters judge the size of fish seen at a distance. It projects an array of parallel laser beams through the water onto the body of a fish, helping divers estimate its length."