Aquatic grasses, also known as submerged aquatic vegetation (SAV), are plants that grow in water bodies such as lakes, rivers, and wetlands. They play a crucial role in aquatic ecosystems by providing habitat and food for various species, including fish and invertebrates. These grasses can be found in both freshwater and saltwater environments. These plants are adapted to life underwater, with features like flexible stems and buoyant leaves. Aquatic grasses help improve water quality by absorbing nutrients and stabilizing sediments, which reduces erosion. They also contribute to oxygen production, making them vital for maintaining healthy aquatic habitats.