Scientific instruments go into the water off the back of the ship, from an area called the fantail. Here, a pair of bongo nets— they look like a pair of drums—is going over to collect krill in the Bering Sea. The time to catch krill is nighttime, when they swim up toward the surface to look for food. A motor makes a loud throbbing, humming sound as the giant A-frame tilts out over the water. The research team aboard the vessel — the U.S. Coast Guard Cutter Healy — is studying the impacts of climate change on the Bering Sea ecosystem.
(Photo by Chris Linder, Woods Hole Oceanographic Institution)