Quote:
Originally Posted by waterninja
....The Stickle backs became so thick that they depleted the oxygen in the lake. I remember drilling holes in the ice there and as much Stickles came out of the hole as water. .... I have since learned a little about Sticklebacks and they are as bad as perch for taking over small lakes and depleteing it of oxygen
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^This is wrong.
Winterkill occurs when fish suffocate from lack of dissolved oxygen. Trace amounts of dissolved oxygen (measured in parts per million, ppm)
are required by fish and all other forms of aquatic life. Winterkill occurs during especially long, harsh winters and is worse in winters with abundant or
early snowfall. Early ice-on and late ice-out dates also increase the winterkill potential.
When snow and ice cover a lake, they limit the sunlight reaching aquatic plants. The plants then cut back on the amount of oxygen they produce. If vegetation dies from lack of sunlight,
the plants start to decompose, which uses oxygen dissolved in the water. When oxygen depletion becomes severe enough, fish die. Shallow lakes with excess amounts of aquatic vegetation and mucky bottoms are prone to this problem.
Source:
http://www.aquaticnuisanceplantcontr...20Sheet_1_.pdf