50 Taonan'ny WWF Floodplain Reserve Marchegg
50 taona nitahiry ny zavamananaina Fanazavana fanampiny: https://www.wwf.at/das-schuetzen-wir/fluesse/march-thaya-auen/
50 taona nitsimbinana ny zavamananaina
Fanazavana fanampiny: https://www.wwf.at/das-schuetzen-wir/fluesse/march-thaya-auen/