what happens when a lake turns over?

Question

i read a fish and game magazine that explained to much details for me to understand.. so can some einstein help me out with this theory like bring it down to a page.

please dont say "i dont know"
thats considered gaining points

Answer 1

The phenomenon of eutrophication is the process of naturally occuring temperature inversions in water bodies due to a changing of atmospheric temperatures. That is to say, when the seasons change, the temperature on the surface of the water changes. That change in surface water temperature causes a cycling of water that brings colder or warmer water (depends upon the seasonal change) up from the bottom, and usually that disturbs what may have settled. This process happens twice a year, usually in the early autumn and spring. After the lake eutrophies, the temperature will begin to equilibriate through the summer or winter, and temperature layers will form again. There is also some minor turning that occurs on a daily cycle, but it usually doesn't cause much sifting.

Answer 2

I'm not an Einstein, but here's a very simple description: Organic material falls to the bottom of the lake and the sea. When there is not enough oxygen at the bottom, the material is converted ("eaten") by bacteria through a process that produces hydrogen sulfide and methane, which is a swamp gas.

If there is a huge production of hydrogen sulfide and methane, these can accumulate into huge bubbles of gas, which can then suddenly lift up, tearing the sediment loose, and rise to the surface. This is called a lake turn over.

The hydrogen sulfide reacts with the oxygen in the higher water levels using it up, suffocating the fish and other animals in the water. There have been cases where the gas levels have been so high that they have killed life above the water level and around the lake as well.

Hope this helps. :)

Answer 3

This happens when the surface water reaches a temperature that is lower than the water below it. As you know, heat rises. The warmer water comes to the surface, bringing with it a tiny fraction of sediment from the bottom of the lake. If this body of water is a source for drinking water, you will notice a slight discoloration, a slight odor and/or an odd taste during this period of time.

Answer 4

the phrase, "when a lake turns over", is referring to the vertical circulation of the water and sediments in a lake. Basically, the mixing of the water.

Answer 5

never heard of a lake turning over. but if it were possiable it seems like to me the water would run out.

Answer 6

all the water comes out.

Answer 7

http://mdc.mo.gov/documents/fish/aquaguides/turnover.pdf

Hope this helps explain it a little better for you.