Wednesday, December 18, 2013

Facts About Deep Sea Fish

Posted by Donnie On 10:22 PM No comments
Facts About Deep Sea Fish
Deep sea fish live in water depths below 200m (656 feet) where light cannot reach. These creatures are some of the most mysterious in the world. According to NOVA's "Into the Abyss," the water pressure increases by over 14 pounds per square inch with every 32.8 feet in depth. Since they are adapted to live under the phenomenal pressure of deep sea water, if they are brought up to the surface, they soon die.

Appearance

    Many deep sea fish have incredibly large mouths in relation to their overall body size. This is thought to be because food is so scarce that they need to be able to swallow as much as they can when they find food.

Food

    Scientists are still unclear as to the exact diets of many deep sea creatures. Most deep sea fish are carnivorous, hunting and scavenging.

Types

    Some of the most common types of deep sea fish include lanternfish, anglerfish, viperfish, ogrefish, orange roughy and the umbrellamouth gulper.

Sight

    Many deep sea fish are able to produce blue or red light, called bioluminescence, from chemicals in their bodies. This light is usually concentrated in one spot.

Controversy

    According to BBC News, many deep sea species take nearly 20 years to become sexually mature. It is thought some species are on the verge of extinction because of over-harvesting from trawler fishing.



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