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Fish that live at great depths live virtually the same as fish that live near the surface, with a few differences.
-Fish from deep waters typically lack much color, and some are completely translucent.
-Fish from deeper waters often use bio-luminescence to attract mates and their prey.
The deeper the water is, generally the less oxygen there is dissolved in the water.
To combat this, deep-water fish are often small, and have highly efficient gills. They are also relatively inactive compared to higher level fish.
As far as the pressure is concerned, they are acclimated to it. Similar to the way a diver will acclimate to depths. The oxygen in the blood compresses, nitrogen bubbles form, and basically you are fine until you decide to resurface. You start having problems when you ascend in the water column to rapidly, and the dissolved oxygen in your blood expands by as much as 10x's (this is only from very deep dives mind you), but this is very rarely experienced, as you need to dive to a thousand feet or more to experience that drastic of a change.
Any animal has to ascend slowly through the water column. When a diver dives below 40' for more than 10 minuets he or she has to pause @ 15' to acclimate to the lower pressure for several minuets. Fish have to go through the same process, but when an angler catches a deep water fish, the fish is not allowed to decompress there for it balloons up.
What else can I help you with?
How do Ice fish survive in Antarctica?
Antarctica is a continent. Fish are sea animals. The Southern Ocean habitat -- that surrounds the Antarctic continent -- is native to fish that survive and thrive there.
What is a large fish's habitat?
the ocean
Can puffer fish survive in fresh water?
No. Puffer fish can only survive in the ocean.
How ocean mining effects ocean life?
kills creatures habitat eg fish
How blob fish survive?
Blob fish survive by laying on the bottom of the ocean floor and eat anything that floats by!
What is a star fish natural habitat?
I thinks it is in the ocean or on the beach.
Why is it important for ocean's to survive?
so we can have water and we need to survive and also eat fish
How do plants and animals survive in the ocean?
They posses adaptation feature to the marine habitat.
What would you find in an ocean habitat?
fish, coral, treasure(Maybe)
What is a whales habitat?
Whales are mammals and normally give birth to live young ones. Their habitat is the sea where they are adapted to survive in.
What do fish need to survive in open ocean?
food and a way to breath
How do whales survive in the Antarctica?
Whales are sea animals and Antarctica is a continent. Whales survive in the Southern Ocean -- which surrounds Antarctica -- because it is their natural habitat when the ocean is free of ice.
