Mesobot Dives into the Twilight Zone for the First Time

Mesobot using red light in a test tank

The newly developed deep sea robot, Mesobot, dove down to 300m for the first time last week during a successful test and evaluation cruise off Monterey Bay. Mesobot is designed to let scientists observe the twilight zone by autonomously tracking individual animals for hours or even days without disturbing the environment or disrupting their behavior.

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The Deep-See Peers into the Depths: A new vehicle illuminates life hidden in the ocean twilight zone

WHOI mechanical engineer Kaitlyn Tradd sits on the new towed vehicle Deep-See

In the ocean’s shadowy depths lies one of the Earth’s last frontiers: the ocean twilight zone. It’s a vast swath of water extending throughout the world’s oceans from 650 to 3,280 feet (200 to 1,000 meters) below the surface, and it abounds with life: small but fierce-looking fish, giant glowing jellies, and microscopic animals that feed marine life higher up the ocean’s food web.

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