The most helpful benefit of ice on the surface of a lake for fish is that it can provide insulation and help regulate the water temperature beneath the ice. This is important for fish survival during cold winter months.
It insulates the fish from the cold air above.
The lake being built where it is wanted (for a fish pond, garden feature, wild-life, etc.) is the main benefit.
When Frozen water floats on liquid water
The fact that ice floats means that the lake probably will not freeze solid all the way down. There will still be liquid water at the bottom of the lake where the fish can stay alive all winter.
You can see many things on the surface of a lake such as algae, plastic crap, protruding sticks and rocks, trees, the reflection of light, ducks, swans, jumping fish, tadpoles, small fish, and other items of the sort. Keep in mind, though, it depends on what the season is , and where the lake is located.
The fact that ice floats on water is beneficial for fish living in a lake because it helps to insulate the water below from extreme temperature fluctuations. This allows the fish to survive in more stable and suitable conditions during the winter months when the surface may freeze over.
Lake Erie is the lake with the highest fish population
it has a lot of fishes
Loch Lomond is the UK's largest lake by surface area. It is located in Scotland and covers approximately 27 square miles.
Lake Vostok is the largest sub-glacial lake in Antarctica. It is 13,000 feet under the surface of Antarctic ice. It is about the size of Lake Ontario. Scientists believe the lake could have ancient organisms, bacteria, and even fish.
The plants do not get as cold.