Question

What do you think will happen if a Mesotrophic or Oligotrophic lake suddenly received an abundance of allochthonous nutrients?

A) Increased plant growth and eutrophication
B) Decreased plant growth and increased biodiversity
C) No significant change in the lake ecosystem
D) A shift from oligotrophic to mesotrophic conditions

Answer 1

If a Mesotrophic or Oligotrophic lake suddenly received an abundance of allochthonous nutrients, it would likely result in increased plant growth and eutrophication.

Step-by-step explanation:

If a Mesotrophic or Oligotrophic lake suddenly received an abundance of allochthonous nutrients, it would likely result in increased plant growth and eutrophication. Nitrogen and phosphorus are important limiting nutrients in lakes, and an excess input of these nutrients can lead to algal blooms. These blooms can reduce light penetration, leading to the death of photosynthetic plants and oxygen depletion of the water, resulting in dead zones.