Study of phyto- and macrozoobenthos at Enns and Johnsbach

As part of a monitoring of the quality elements macrozoo and phytobenthos on two study sections in the Enns and one in the Johnsbach, the measures implemented according to the catalogue of measures of the Limnological Concept Gesäuse (Phase II) were evaluated. The phytobenthos as a material indicator shows no noticeable improvements. In the case of macrozoobenthos, zenotic improvements can be identified on all three stages of the investigation, which are due to measures carried out.本研究作为恩斯河（Enns）两处研究河段与约翰斯巴赫河（Johnsbach）一处研究河段的大型底栖动物（macrozoobenthos）与底栖藻类（phytobenthos）质量监测工作的组成部分，对依据《格豪伊泽湖沼学方案（第二阶段）》（Limnological Concept Gesäuse (Phase II)）的措施清单所实施的修复措施开展了效果评估。作为物质指示物的底栖藻类未出现显著改善效果。针对大型底栖动物而言，本次调查的全部三个阶段均观测到其生物群落改善现象，且该改善与已实施的修复措施直接相关。