The influence of land use management on the ecological state of dead arms of the river Hármas-Körös

November 17, 2014

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Article Title:	The influence of land use management on the ecological state of dead arms of the river Hármas-Körös
Authors:	Jozsa V., Kozlowski J., Gyore K.,Wilhelm S.
Affiliation:	1Research Institute for Fisheries, Aquaculture and Irrigation, Szarvas, Hungary Faculty of Environmental Sciences and Fisheries UWM, Poland, 3Petőfi Sándor Highschool, Sacueni, Romania
Abstract:	The studies were carried out on 14 deadarms of River Hármas-Körös. The total length of deadarms involved in the studies was 74 kms and the water surface was 517 hectares. Long-term prognoses relating to the ecological state of deadarms depend on the previous exploitation and planned exploitation in the future. The main goals of the present research were the following: – The classification of deadarms on the basis of chosen parameters (the mode and the intensity of water change, the massiveness of the sediment, redox potential, land use management, ichthyofauna). – The determination of the current state of degradation of given deadarms. The results of present research can be employed successfully when planning the ecological reconstruction of deadarms or shallow lakes. The establishment of more detailed prognoses relating to the ecological state of these water ecosystems could have direct effects on their modes of exploitation.
Keywords:	deadarms, deposit, nutrient, redox potential,
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*Correspondence:	Vilmos Józsa, senior scientist, Research Institute for Fisheries, Aquaculture and Irrigation H-5540 Szarvas, Anna-liget 8.phone.: +36 66 515-315, fax: +36 66 312-142, e-mail: jozsav@haki.hu

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