Section of Tordera river in Hostalric in May 2020, year of Storm Gloria.
Historical values of IMBWP index in the study area of the Llobregat river in La Puda (Olesa de Montserrat). The colored background represents the biological quality of water (blue: very good; green: good; yellow: moderate; Orange: bad; red: poor; sd: no data).
Number of identified taxons mainly as the genus in the sampling spot in the interminent stream of Fuirosos, in Montnegre i el Corredor Park.
All the analysed rivers in the 2020 CARIMED report on the ecological quality of rivers in the provincial area of Barcelona flowed with water –both in spring and in summer– and there were no dry spots like in previous years. This is a unique hydrological condition within the 26-year period of scientific monitoring of the river network in Barcelona, carried out by the Freshwater, Hydrology and Management (FEHM) research group of the University of Barcelona.