What ecological function do keystone species serve in aquatic ecosystems?

The role of keystone species in aquatic ecosystems is vital as they help maintain the structure and balance of the ecosystem. Keystone species have a disproportionately large impact on their environment relative to their abundance. This influence can manifest in various ways, such as predation, herbivory, or competition, which help regulate populations of other species and maintain biodiversity.

For instance, a predator that is a keystone species may keep the population of its prey species in check, preventing overgrazing or overconsumption of vegetation or other resources. This, in turn, supports a wide range of other organisms in the ecosystem, allowing them to thrive. If a keystone species is removed or diminished, it can lead to significant changes in the ecosystem, potentially causing other species to become overly dominant or even leading to the collapse of the habitat.

Understanding the role of keystone species is essential for effective conservation practices and management of aquatic ecosystems, as their presence is crucial for sustaining ecological balance.