In much of the hydrocarbon resource area of the North West Shelf, the sea bed lies in this depth zone. The bathyal zone and the abyssal and hadal zones below it are referred to as the deep sea. The Abyssal zone alone covers around 83 of the total area of the ocean Although the abyssal zone is so vast, very few animals can handle the extreme conditions. The bathypelagic zone (dark zone): between 1000 m and 4000 m, where darkness is virtually complete except for bioluminescence from fish, crustaceans, jellyfish and other marine life the temperature is low and constant and water pressure high. The slope, terraces, and plateaux from depths of 200 to 2000 m are referred to as the bathyal or deep-sea zone. Whales, Dolphins and Porpoises of Oregon: From the massive blue whale to the diminutive harbor porpoise, this identification guide contains beautiful illustrations of each species and is a great research tool for students, teachers or just anyone who loves whales, dolphins and porpoises. The Abyss (Abyssal Zone) From 13,135 feet to 19,700 feet, the Abyssal zone (aka the abyss) contains zero sunlight and crushing levels of water pressure. Tamara Frank, marine biologist and explorer, discusses how global climate change and pollution are affecting even the deepest regions of the ocean. Narwhals dive to this depth up to 15 times a day in search for food. Many deep-sea creatures cope by creating light themselves - also known as bioluminescence. 25 of the estimated 8,700,000 species on earth live in the ocean depths, and 91 of those have yet to be discovered. Tamara Frank, Part 2: Saving the Deep Sea: Dr. At 332 meters, this is the deepest any human has ever scuba dived. The density of organisms is therefore low. The seafloor and water column from 3,000 to 6,500 meters (9,842 to 21,325 feet) depth is known as the abyssal zone, or the abyss. This three-week virtual exploration will take you deep into the trenches and valleys of the Mariana Back-Arc to better understand this miracle of life. Searching for Life in the Mariana Back-Arc: In the lightless and super heated ecosystems around volcanic vents, marine life have evolved unique survival strategies. Venture to the Phoenix Islands Chain with Schmidt Ocean Institute for a first glimpse at these unseen ecosystems. Phoenix Island Chain Deep Dive: They are one of the deepest, most pristine coral reefs on Earth. In fact, life here simply wouldn't exist without this one huge, interconnected ocean. Creep into the Deep, 2015: In this virtual exploration, marine biologists study vision and bioluminescence in the deepest regions of the Gulf of Mexico.Ĭreep into the DEEPEND: Join the Oceanscape Network and eleven other agencies for the most comprehensive survey of deep-sea life in the Gulf of Mexico.ĭeep Sea Diver: The Sperm Whale: The pressure in the ocean's Midnight Zone is so great it's hard to imagine any creature surviving there, let alone an air-breathing whale!Įarth, The Ocean Planet: Seen from space, the Earth is clearly a world of water.
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