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Degradation the Aquaric Ecosystems as Cosequence of the Anthropic Impact. Aquatic ecosystems with all their components (biotic and non-biotic), directly or indirectly, are under human influence. This is why corrective measures are necessary in order to improve their state and to ensure the preservation of biodiversity and natural habitats. The object of our study was a like, situated between the Plopi and Maramanovca villages (in the northern region of the Republic of Moldova) and the surrounding region of about 10 hectares, represented by a flooded meadow with an abundant paludinous vegetation, dominated by Cyperaceae, Thyphaceae, Poaceae. Besides the registered fauna and flora species in this ecosystem, water and mud composition was researched. The results showed a high accumulation of stable chemical compounds and intensive consumption of N and P compounds. The obtained results represent a fact of the anthrop factor impact on the researched lake, witch persist during the last years.

Keywords: Anthropic impact, aquatic ecosystem, ecoindicators species, biodiversity conservation.