Andone Lavery - Twilight Zone

Field Notes: Deep-Sea tests the waters

By ehugus | August 8, 2022

Engineering personnel make final checks and adjustments to the Deep-See before its first deployment. Weighing 2,500 pounds, the Deep-See requires…

Counting fish—with sound

By ehugus | April 28, 2021

Engineer leads deployment of Deep-see on the NOAA Ship Bigelow

Acoustic measurements from a ship and an underwater robot help scientists estimate how many fish are in the twilight zone.…

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

By Kathryn Baltes | February 26, 2019

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.