A new device is allowing scientists to bring live specimens of deep dwelling fish to the surface for study without using invasive techniques. The pressurized chamber, known as the SubCAS (Submersible Chamber of Ascending Specimens), was invented by scientists at the California Academy of Sciences and the Monterey Bay Aquarium. The devise specifically is meant for fishes living in the mesopelagic zone, 600 to 3,500 feet below the surface of the ocean. In the past scientist have punctured the swim bladder of fish to allow for escaping gases as they are brought to the surface, an invasive technique.
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