Bu çal mada Gölmarmara gölünde yayg n olarak bulunan Ranunculus sphaerospermus Boiss.& Blanche, Phragmites australis (Cav.)Trin.ex Steudel, Carex otrubae Podp ve göl suyunun baz ekolojik özellikleri belirlenmi tir. Ara t rma ilkbahar ve yaz aylar nda yap lm t r. Bu mevsimler bitkilerin çiçeklenme ve tohumlanma dönemleridir. Farkl dönemlerde al nan bitki ve su örneklerinin Azot, Fosfor ve Potasyum de erleri belirlenmi tir. Bitki örneklerinde yap lan çal mada Nisan ay nda Azot, Fosfor ve Potasyum de erleri yüksek bulunurken göl suyunda bu de erler haziran ay nda yüksek kaydedilmi tir.

Lake water and freshwater plant samples were sampled from an area where Ranunculus sphaerospermus Boiss.& Blanche, Phragmites australis (Cav.)Trin.ex Steudel, Carex otrubae Podp. were found widespread in lake Gölmarmara. It shows ecological properties of these species. The research was made in spring and summer. These periods are the flowering and seedling season of the plants. The values of nitrogen, potassium and phosphorus in plant samples and lake water collected in different periods were determined. Nitrogen, potassium and phosphorus concentrations were higher in April in plant samples. But concentrations of these elements were higher in July in the lake water .