12/22/2023 0 Comments Underwater spy cam"This use of a marine predator as a guided, high-speed sampling device for its midwater prey provided clarification and new insights into the behavior, interactions, and ecology of species that have been especially difficult to study," they wrote in reporting the results of the NSF-supported work in Marine Biology. To obtain the images and data over the course of three Antarctic summers, Lee Fuiman of the University of Texas at Austin, Randall Davis of Texas A&M University, Galveston, and Terrie Williams of the University of California, Santa Cruz, equipped 15 Weddell seals with a video camera, infrared LEDs and data recorders to track both the seals' movements from their breathing holes through the water and their interactions with their prey. It could also have wider applications in studying other species that thrive at great depths, the researchers said. The fieldwork by an eight-member team at McMurdo Station in Antarctica provided a rare glimpse into the habits of two very important Southern Ocean species, the Antarctic silverfish and the Antarctic toothfish, which is prized by commercial fishing fleets. The team equipped Weddell seals with video cameras to follow the fish and record their behavior. By employing one underwater species to "spy" on two others through novel use of technology, Antarctic researchers have gained new insights into two little-known fish species.
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