Respuesta :
The addition of excess mineral nutrients to a lake threaten its fish population as the algae and the creatures that consume them experience population surges when nutrients are added. Oxygen levels in the lake are reduced due to increased respiration by algae and consumers, such as detritivores.
Behind this situation is a process called eutrophication. Since algae prefer environments that are mineral or nutrient rich for growth, an excess of plant growth results if the concentration of organic salts or nutrients in a lake rises above a specific level. However, since algae are rapidly dividing species, the main issues start now.
If the nutrient content is very high, an uncontrolled algal growth known as an algal bloom results. The abundance of algae quickly covers lakes, turning them green while also obstructing sunlight, altering lake temperatures, and consuming mineral nutrients needed by lake creatures, which ultimately results in species extinction.
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