The mortality of fish in a lake or farm may be partial or total and be caused by a variety of factors, including low levels of dissolved oxygen, contaminants, diseases, extreme temperatures, or natural mortality.
It is not always possible to avoid the death of fish, but in most cases there are warning signs to look for solutions and correct the problem before it's too late.
• A low level of dissolved oxygen is the most common cause of fish deaths in lakes and ponds. The most obvious sign of a lack of oxygen in the water is to fish gasping at the surface, especially in the morning.
Once the problem has reached this point, aeration is the best option to prevent fish deaths. With proper aeration, we can get back to the natural balance of the water and therefore the wildlife that lives on.
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