What life in the “twilight zone” of Indian Ocean?

Across the world, about one billion people benefit from coral reefs directly or indirectly, for example through income from tourism, or because the reefs provide coastal protection.

However, while some coastal reefs such as the Great Barrier Reef are famous worldwide, a “twilight zone” of unexplored reefs known as mesophotic coral reefs lie deep below the Indian Ocean’s surface in the Maldives.

More on : https://www.straitstimes.com/world/rolex-perpetual-planet-we-the-earth-marine-scientist-luiz-rocha-maldives-indian-ocean

Bacterial distribution in Twilight zone of the Indian sector of Southern Ocean

Twilight zones in oceans represent the oceanic waters between 200 m to 1000 m in depth, wherein sunlight is diffused and intensity is <1% of surface value. The activities and diversity of marine micro-organisms in this unique zone are understudied, especially in the Indian Sector of the Southern Ocean.

More on : https://www.sciencedirect.com/science/article/pii/S235234092201037X