How Do Fish Survive in Cold Water?

Answer

Only the top layer of water on the lake is frozen. The water toward the bottom of the lake is often not as cold as the water near the ice, so many fish live near the bottom of the lake during the winter season. Some fish, like the Antarctic notothenioids, produce glycoprotein, called AFGP for short, which works like an antifreeze to keep them from freezing in frigid waters. Through centuries of evolution and learning to adapt, many species of fish are able to regulate their body temperature in order to survive in cold water.
Reference:
1 Additional Answer
Fish survive in cold water by swimming deeper into the water. The deeper the fish go the warmer the environment is. Also fish have a temperature regulator and can survive the witner.
Q&A Related to "How Do Fish Survive in Cold Water?"
Cold water fish are those that prefer cooler water temperatures. Salmon, trout, sardines, tuna, anchovies and herring are but a few of the cold water fish.
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Fish survive better in cold water then in warm water because :- 1) Cold water has more oxygen and more oxygen means more microscopic life which means more food. 2) In Cold water there
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Fish survive in low temperature waters because they have
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