* Climate change: Changes in temperature, precipitation, and other climate factors can alter the physical and chemical conditions of aquatic ecosystems, which can in turn lead to changes in the plant and animal communities that live there.
* Pollution: Pollution from human activities can also alter the physical and chemical conditions of aquatic ecosystems, and can also introduce harmful chemicals that can directly or indirectly harm aquatic organisms.
* Land use changes: Changes in land use can alter the amount of sediment and nutrients that enter aquatic ecosystems, as well as the amount of light that penetrates the water. This can lead to changes in the plant and animal communities that live there.
* Biological interactions: Competition, predation, and other biological interactions can also play a role in aquatic succession. For example, if a new predator is introduced to an aquatic ecosystem, it may prey upon and reduce the population of a certain prey species. This can then lead to changes in the populations of other species that are either competitors or prey of the affected species.
Aquatic succession is a complex process that is influenced by a variety of factors. It is important to understand these factors in order to manage and protect aquatic ecosystems.