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The most common deep sea fish is the lanternfish but others include the
flashlight fish, cookiecutter shark, bristlemouths, anglerfish, and viperfish.
Many of these fish generate their own light and can survive with little oxygen.
Endangered deep sea species
A 2006 study found five species of deep sea fish – roundnose grenadier,
onion-eye grenadier, blue hake, spiny eel and spinytail skate – to be on the
verge of extinction due to the shift of commercial fishing from continental
shelves to the slopes of the continental shelves, down to depths of 1600 meters.
The slow reproduction of these fish is one of the main reasons that they cannot
recover from the excessive fishing.
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