Final answer:
The oligotrophic trophic state is expected to have the greatest amount of biodiversity due to low nutrient levels.
Step-by-step explanation:
The **oligotrophic** trophic state would be expected to have the greatest amount of biodiversity. Oligotrophic environments are characterized by low levels of nutrients, particularly nitrogen and phosphorus, which limits the growth of algae and other primary producers. As a result, oligotrophic ecosystems tend to support diverse populations of organisms, including various species of fish, insects, and plants.
In contrast, **eutrophic** and **hypereutrophic** environments have high nutrient levels, which can lead to excessive growth of algae and other primary producers. This can reduce oxygen levels in the water, making it less suitable for many species of fish and other aquatic organisms. **Mesotrophic** environments have intermediate nutrient levels, which can support a moderate level of biodiversity.
Learn more about Trophic states and biodiversity