Which invasive plant is known to create dense mats on water surfaces?

Hydrilla is recognized for its ability to form dense mats on water surfaces, which can significantly hinder water flow and obstruct sunlight from reaching native aquatic plants. This invasive plant thrives in various freshwater environments, quickly spreading through its rapid growth rates and fragmentation. Hydrilla's extensive root system and high reproductive potential allow it to outcompete native species, leading to a degradation of biodiversity in affected aquatic ecosystems. The dense mats created by Hydrilla can also disrupt recreational activities, impact fish populations, and alter water chemistry, making its management crucial in preserving the health of water bodies. Understanding Hydrilla's characteristics helps stakeholders mitigate its impact effectively.