During 3 days, from 5-7 October 2021, the researchers carried out scientific fishing and sampling of the aquatic invertebrate coating on 17 sampling points in the Tisza and its catchment area in the Maramureș Mountains Nature Park.
The sampling points were near Turulung (Tur river, RO), near Piatra (Tisa, RO), Teceu Mic (Tisa, RO), near Săpânța (Tisa, RO), near Sarasău (Tisa, RO), near Berbești (Mara, RO), Vadu Izei (Iza, RO), near Oncești (Iza, RO), near Lazu Baciului (Ronișoara, RO), near Sighetu Marmației (Tisa, RO), Crăciunești (Tisa, RO) and near Petrova (Vișeu, RO).
