what is the difference between eutrophic and oligotrophic lakes?

Question

what is the difference between eutrophic and oligotrophic lakes?

Answer 1

It has to do with the relative abundance of nutrients, hence, the degree of aquatic plant (algae) productivity. Eutrophic lake environments have an abundance of algae and microbes. Oligotrophic lakes, by comparison, are relatively clear.

Answer 2

An oligotrophic lake is characterised by having low nutrient content material and vegetation but has excessive oxygen content material (which is required for animal progress). A eutrophic lake has high to excessive nutrient content material and vegetation (esp algae), which more often than not outcome in oxygen depletion and absence of animal existence.