The study on aquatic macrophytes was documented with 15 species of aquatic macrophytes belonging to 11 families. (Tables 1 and 2). Out of 15 macrophytes, one species belongs to a free-floating, six species belong to emergent and eight species of submerged. The present enumeration deals with 15 species of Aquatic macrophytes belonging to Three different categories Bryophytes, Pteridophytes and Angiosperms which depend on their contact with soil, water and air and are classified into the following groups Free Floating, Submerged, Emergent, Floating Leaved.
All the plants were categorized as submerged 53%, emergent 40%, and free-floating 7% (Fig-2). Submerged plants represented by 8 species viz. Nitella species, Stuckenia pectinata, Callitriche palustris, Potomogeton species, Najas marina, Utricularia minor, Hydrilla verticellata, and Ottelia alismoides, followed by emergent anchored with 6 species viz. Cyperus longus, Alternanthera sessilis, Ipomea fistulosa, Polygonum glabrum, Cyperus aggregatus, Portulaca olaracea and Free-Floating plants were Azolla pinnata. Species diversity at different stations has shown in Table 2. Ipomoea fistulosa, Polygonum glabrum, Cyperus longus, Cyperus aggregatus, Callitriche palustris, Alternanthera sessilis, and Hydrilla verticellata. were found to be grown in all the stations. Ipomea fistulosa is a common aquatic fern in tropical regions. The upper surfaces of Hydrilla verticellata plants' leaves are water repellent and, if completely submerged.
Classified macrophytes based on the habitat of macrophytes. The aquatic macrophytes are classified as submerged, floating and emergent growing in and covered by at least 25cm of water. However, the other newly recorded macrophyte species pose a major threat to the lake's existence. [9] were studied on the world checklist of macrophyte species.
In the present study submerged aquatic macrophytes are rooted plants with flaccid or limp stems and most of their vegetative mass below the water surface, although small portions may stick above the water. Among the submerged macrophytes abundant in all sites showed the presence of all three seasons during most of the study period. Free-floating macrophytes are found suspended on the water surface with their root not attached to the substrate, sediment, or bottom of the water body. In this study, only one type of free-floating species was seen abundantly in three sites (S1, S2 and S3) in winter and summer. Emergent macrophytes are plants that are rooted in shallow water with vegetative parts emerging above the water's surface. During the study, the emergent macrophytes were seen in all the sites in all seasons.