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Fish basicly hibrenate, or slow their matabolism in order to take in less oxygen for the water. Slowing down their heartbeat, and doing less vigorous activities help it conserve it's body energy. Therefore they are able to survive the time alotted in winter...

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14y ago
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7y ago

Unlike most other materials water expands just before freezing, making ice float on liquid water. This gives the fish and other aquatic organisms a liquid space below the ice to live in. If water did not have this property then ice would sink causing water to freeze from the bottom into a solid mass that nothing could move in.

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14y ago

well since the top of the lake is frozen it act as an insulator keeping the heat trapped within... thus fishes inside can survive

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9y ago

Only the top layer of water freezes in lakes when the harsh winter weather results in freezing temperatures. This traps oxygen in the water allowing the fish to comfortably survive.

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9y ago

the tempreature in the polar region is very low thus oxygen gas dissolved in water is not able to escape, thus more and more aquatic animals are found in polar reigion

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14y ago

Lakes never freeze to the bottom, so fish just live in the water below the ice.

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12y ago

Because they have gills and gills let them breathe in and out.

but the disadvantage is they have to keep moving around or they might drown.

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11y ago

Sea creature can survive cold climate because the sea is cold by night,rainy season and in low temperature

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Q: How can fish survive in lakes even in extreme winter conditions?
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