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Twilight Zone
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  • Explore the OTZ
    • What is the OTZ?
    • Creature Features
    • Value to Humans
    • Life in the Twilight Zone
    • Vertical Migration
    • Food Webs
    • Impact on Climate
    • eDNA Explained
  • Work & Impact
    • Science
    • Technology
      • Mesobot
      • Deep-See
      • MINIONs
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      • Radiometer
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    • Policy
      • Policy Report: The Ocean Twilight’s Zones Role in Climate Change
      • Policy Report: Value Beyond View in the Ocean Twilight Zone
    • Public Awareness
      • Keep it Weird Campaign
    • Publications and Reports
  • Missions
    • R/V Endeavor and NOAAS Bigelow, Aug 2022
    • E/V Nautilus, Sept 2021
    • R/V Armstrong, July 2021
    • R/V Sarmiento de Gamboa, May 2021
    • R/V Catapult, Feb-Mar 2021
    • R/V Armstrong, March 2020
    • R/V Manta, September 2019
    • R/V Rachel Carson, June 2019
    • MV Alucia, March 2019
    • NOAA Ship Bigelow, April 2018
    • R/V Revelle and R/V Ride, Aug-Sep 2018
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Migration

Field Notes: Unraveling the mysteries of migration with simultaneous sampling

By ehugus | August 14, 2022

OTZ project lead Heidi Sosik and WHOI senior research assistant Taylor Crockford review data coming in from the towed sled…

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Field Notes: Hunting an Isolume

By David Levin | March 18, 2021

Captain David Ullman preps Catapult for a 2:30am departure. (Photo: Jennifer Berglund) Today, the team set out well before sunrise,…

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Field Notes: Catching Light

By David Levin | March 17, 2021

Research Technician Fredrick Marin attaches a highly-sensitive radiometer to Mesobot. Credit: Jennifer Berglund Since Mesobot arrived in Bermuda, it’s been…

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Connecting Life in the Ocean Twilight Zone

By David Levin | August 4, 2020
dissection of a fangtooth

The OTZ team is studying food webs in the twilight zone using a number of different methods. One important technique…

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Open ocean diving observations

By Johnny Willy | January 15, 2020
Diver

Watch and learn how blue and black water diving is conducted in the open ocean and what these divers see…

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Satellite Observes Massive Ocean Migration

By Ken Kostel | December 9, 2019

  Every night, under the cover of darkness, countless small sea creatures swim from the ocean depths to feed near…

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Tunnels to the Twilight Zone

By Johnny Willy | August 9, 2019
Tunnels to the Twilight Zone
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Once More Into the Twilight Zone

By Ken Kostel | July 28, 2019
Deep-See deployment

On July 25, scientists embarked on the 2019 Ocean Twilight Zone expedition aboard NOAA Ship  Henry B. Bigelow. A team…

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What is the Ocean Twilight Zone?

By Johnny Willy | September 19, 2018
OTZ Life

The ocean twilight zone is a layer of water that stretches around the globe. It lies 200 to 1,000 meters…

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Recent Entries

  • Casting a (long) line to the twilight zone food web February 20, 2023
  • Spotlight: Zhaozhong Zhuang January 26, 2023
  • Underwater “Tides” Could Affect Animals in the Twilight Zone January 6, 2023
  • OTZ project featured at COP27 December 6, 2022
  • Spotlight: Di Jin December 2, 2022

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LATEST NEWS

  • Casting a (long) line to the twilight zone food web
  • Spotlight: Zhaozhong Zhuang
  • Underwater “Tides” Could Affect Animals in the Twilight Zone
  • OTZ project featured at COP27
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