2010
DOI: 10.2478/v10191-010-0030-7
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Long-term dynamics of zooplankton in the Matiţa and Merhei shallow lakes (the Danube Delta, Romania). 1. Diversity and abundance

Abstract: Abstract. The present paper presents significant changes occurred in the multi-annual dynamics of zooplankton diversity and abundance , under the pressure of human-induced eutrophication in two shallow lakes specific for the Danube Delta. Zooplankton community from lakes Matiþa and Merhei was characterized by high species richness but low abundance values until 1981, in ecological conditions unaffected by eutrophication. For the next ten years, due to obvious increases of human pressures, zooplankton species r… Show more

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“…The Danube is a major contributor with fresh water and sediments to the Black Sea, through the largest deltaic system in Europe, the Danube Delta (Jugaru-Tiron et al 2009). The Danube Delta consists of three branches and a vast fluvialmarine contact zone, given the multiple splits and junctions of distributaries across the area (Zinevici & Parpală 2006). Across the Danube Delta there were counted approximately three hundred freshwater lakes, highly interconnected through a vast network of channels and canals, fuelled mostly with water from the Danube or just during flood events for remote water bodies (Gâştescu 2009).…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…The Danube is a major contributor with fresh water and sediments to the Black Sea, through the largest deltaic system in Europe, the Danube Delta (Jugaru-Tiron et al 2009). The Danube Delta consists of three branches and a vast fluvialmarine contact zone, given the multiple splits and junctions of distributaries across the area (Zinevici & Parpală 2006). Across the Danube Delta there were counted approximately three hundred freshwater lakes, highly interconnected through a vast network of channels and canals, fuelled mostly with water from the Danube or just during flood events for remote water bodies (Gâştescu 2009).…”
Section: Introductionmentioning
confidence: 99%
“…The Danube Delta is a natural reserve, harbouring numerous wetlands and floodplain forests, which play a crucial role in lateral exchanges of nutrients with the adjacent water bodies. The Danube Delta is well-known for its biodiversity, comprising a large number of plant and animal species that unfortunately were negatively affected by the anthropogenic interventions over the past century (Zinevici & Parpală 2006, Gâştescu 2009. The humaninduced disturbances, such as eutrophication, changes in water and sediment fluxes as a result of cut-off channels or frequent dredging activities for improving navigation, the fast development rate of local tourism, but without proper sanitation conditions, have affected the complex of ecosystems and implicitly the water quality in the Danube Delta (Jugaru-Tiron et al 2009, Pacioglu et al 2022.…”
Section: Introductionmentioning
confidence: 99%