Hidrológiai Közlöny, 2015 (95. évfolyam)

2015 / 5-6. különszám - LVI. Hidrobiológus Napok előadásai

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nutrient concentration the subdominant duckweed stocks buoyed by an increase homwort. With high nutrient load (10 mg l"1), however, a thick blanket of duckweed has been established that the shielding effect of anoxia and by the established homwort mortality also led to. Transitions between stable states (submerged - floating-emergent) were well follow through in pH and dissolved oxygen values as well. The homwort in low nutrient concentrations (<2 mgN T1) strongly inhibited growth of duckweed. Our study has shown that the ability to maintain long Ceratophyllum inhibition until the nutrient load is not too high. The results confirm the hypothesis that submerged plants inhibit floating emergent plants to settling ponds.

Keywords: Lemna, Ceratophyllum, competition, dominance, N concentration.

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