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Why do aquatic species feel more comfortable in the lakes in winter than in summer?

Why do aquatic species feel more comfortable in the lakes in winter than in summer?

Grade:upto college level

2 Answers

Anjali Ahuja
askIITians Faculty 240 Points
7 years ago
Hello student
In cold winter months, lakes and rivers freeze over forming ice.
Underneath the frozen upper layer, the water remains in its liquid form and does not freeze. Also, oxygen is trapped beneath the layer of ice. As a result, fish and other aquatic animals find it possible to live comfortably in the frozen lakes and ponds.
Ice does not allow heat to pass through it easily, so the freezing of the waters below is a very slow process. At depths below 30 metres, temperatures are cold and stable, but food is scarce. As a result animals have adapted to this situation by growing more slowly.
11 Points
3 years ago
Since solubility of a gas in a liquid is inversely proportional to temperature, with the decrease of temperature in winters, solubility of Oxygen in water increases thus providing a more comfortable habitat as compared to summers where due to increased temperatures, the solubility of Oxygen is relatively less.

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