Now conduct research on the types of organisms that live in the ecosystem you chose. Note that quaternary consumers and even tertiary consumers can include land animals that rely on the animals in the aquatic ecosystem for food. Collect information based on these guidelines: Producers: Identify 2-3 species. Primary (or first-level) consumers: Identify 2-3 species. Secondary (or second-level) consumers: Identify 2-3 species. Tertiary (or third-level) consumers: Identify 2-3 species. Quaternary (or fourth-level) consumers: Identify 1-2 species. Write down the species you’ve identified for each consumer level in the ecosystem.