On the base of notice of Culture department of those-age SSR was Sĺňava officially registered as protected study area. Division of areas in Sĺňava

Whole area of the protected land is 465 ha, from which 399 ha belongs to own protected area and 66 ha as protective belt. A – water area of basin, divided further into parts:
A1 – part of water area from Krajinský bridge up to dockyard of
water-skiers
A2 – part of water area from the dockyard of water-skiers up to water
delay left from sailing route of trip-ship Markus, as also left from
so-called scythe (promontory of the dam)
A3 – part of water area from the dockyard of water-skiers up to water
delay right from sailing route of trip-ship Markus, including this
route
B – Island Čajka (Gull), of known also as “Bird Island” in left part of
Sĺňava
C – peninsula Výsadba on the right side of water basin
D – area meadow between dams, dams and draining canals divided
further into:
D1 – meadow between levees and grasslands above the basin
D2 – levees around Sĺňava
D3 – left and right draining canals of water basin Sĺňava
E – area beneath the water basin (known also as Priesaky)
4.4 Flora in Slnava

The water area is constantly surrounded by shrubby vegetation. It is formed mainly from many types of willows as e.g. Salix alba, Salix cinerea, Salix fragilis. From other woody tree we can find here alders (Alnus glutinosa), Clematis vitalba, Frangula alnus or wild roses. From herbs we can find mainly Angelica silvestris, Calystegia sepium, Calamagrostis epigeios. Very important is the occurrence of endangered Centaurium pulchellum which indicates community of stripped bottom of the water basin. Important are also island-like shrubs of canes, Typha angustifolia and Typha latifolia. On the peninsula Výsadba are mainly big communities of canes and Typha. In this area were also planted plants, that did not grow here naturally, and they found here very good conditions for growth, e.g. light-liking Butomus umbellatus and protected water-lily Nuphar lutea. The dams fulfill protective function, their slopes are covered with grass, regularly cut. They are warm and dry, and during years there have adapted xenophiles and semi xenophiles shrubs of grasses.