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TWILIGHT LEAGUE

The Twilight League is for Deep HOPE supporters at the Twilight level or higher. Find out more about the League and where it gets its name below.

Click on an oceanic zone to explore.

200m

1000m

4000m

6000m

11,000m

700ft

3300ft

13,100ft

19,700ft

36,100ft

 

SUNLIGHT ZONE

Epipelagic Zone
Depth: Surface - 200m

When we think of the ocean, the images that usually come to mind first are those of sunlit reefs filled with healthy corals and plentiful, vibrant fishes swimming in brilliantly blue, tropical waters. However, ecosystems like this actually make up less than 1% of the Earth's surface and less than 2% of the total ocean floor. Most of the ocean exists beneath the photic zone (the zone where light can penetrate) and thrives without the energy of our sun.

The oceans are divided into zones, based on depth. The uppermost zone is the Epipelagic Zone. The iconic animals contained within this sun-filled zone include vaquitas (the smallest whale), dolphins, orcas, turtles, schooling tropical fishes and huge expanses of colorful coral reefs. Below this is the Mesopelagic, or Twilight Zone.

 

TWILIGHT ZONE

Deep HOPE plans to explore the Twilight Zone. Join the Twilight League to explore it with us.

 

MIDNIGHT ZONE

Bathypelagic Zone
Depth: 1000 - 4000m

Extending from 1000 meters down to 4000 meters, the Bathypelagic, or Midnight Zone, is a zone where no sunlight penetrates. Animals here rely on eating falling detritus (organic waste) as well as eating one another to survive. Cachalots (Sperm whales) hunt in these depths for giant squid, and common animals found here include vampire squid, anglerfish and crustaceans.

 

ABYSSAL ZONE

Abyssopelagic Zone
Depth: 4000 - 6000m

The Abyssopelagic Zone is from 4000 - 6000 meters deep and is characterized by freezing temperatures, intense pressure and is completely aphotic (no sunlight ever penetrates). Creatures that have adapted themselves to this unforgiving environment include some species of squid and octopus, as well as many types of brittle stars and echinoderms. Yet there is an even deeper layer to our oceans.

 

HADAL ZONE (TRENCHES)

Hadalpelagic Zone
Depth: 6000 - 11,000m

The Hadal Zone contains our deep ocean trenches. The forbidding Hadalpelagic Zone extends from 6000 meters (19,686 feet) to the very deepest point on our plane, the Mariana Trench near the island of Guam. This trench drops down to an astonishing 10,911 meters (35,797 feet). Pressures down there reach eight tons per square inch; the water temperature remains just above freezing. However life exists even here, and animals such as tube worms, starfish and other invertebrates that thrive at these depths remind us of the biological diversity and resilience of our wonderful water planet.

 
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