caa a22 4500 605509301 CHVBK 20210128100640.0 cr unu---uuuuu 210128e20151201xx s 000 0 eng 10.1007/s10452-015-9541-4 doi (NATIONALLICENCE)springer-10.1007/s10452-015-9541-4 An overview of potamodromous fish upstream movements in medium-sized rivers, by means of fish passes monitoring [Elektronische Daten] [Jean-Philippe Benitez, Billy Nzau Matondo, Arnaud Dierckx, Michaël Ovidio] This study aims to investigate the upstream movement patterns of potamodromous fish species using multi-annual monitoring of modern multi-species fish passes in two medium-sized Belgian rivers: the Berwinne and the Amblève. During a 6-year monitoring period including a frequency of 1-5 times per week, the captured individuals were identified, measured and weighed to determine species abundance, and the periodicity of their seasonal movement patterns was investigated in relation to environmental factors. In the Amblève, 22 different fish species were monitored (n=1513 individuals; biomass of 154kg) and 14 species in the Berwinne (n=3720; 408kg). In both fish passes, inter-annual differences were observed, but the first year of monitoring was the best in terms of biomass, indicating the existence of an opening effect just after the fish passes opening, which allowed new migration routes. Salmonids and rheophilic cyprinids were predominant in terms of biomass, while minnow and spirlin were predominant in terms of number of fishes. The diversity in size ranged from 46 to 760mm demonstrating the importance of movements in various life stages. The capture periodicity showed different mobility patterns between the adult and juvenile stages in most species. Movements occurred frequently during the circum-reproduction period for some species, but many species moved also apart from spawning period. This study highlights the omnipresence of patrimonial holobiotic potamodromous fish at different life stages that reflect their biological needs to move throughout the annual cycle. They must be considered as target species in river continuity restoration programmes and fish-pass design. Springer Science+Business Media Dordrecht, 2015 Fish pass nationallicence Potamodromous nationallicence Mobility nationallicence Effectiveness nationallicence Juveniles nationallicence Benitez Jean-Philippe Biology of Behaviour Unit, Laboratory of Fish Demography and Hydroecology, Applied and Fundamental Fish Research Center (AAFISH-RC), University of Liège, 22, Quai E. Van Beneden, 4020, Liège, Belgium aut Nzau Matondo Billy Biology of Behaviour Unit, Laboratory of Fish Demography and Hydroecology, Applied and Fundamental Fish Research Center (AAFISH-RC), University of Liège, 22, Quai E. Van Beneden, 4020, Liège, Belgium aut Dierckx Arnaud Biology of Behaviour Unit, Laboratory of Fish Demography and Hydroecology, Applied and Fundamental Fish Research Center (AAFISH-RC), University of Liège, 22, Quai E. Van Beneden, 4020, Liège, Belgium aut Ovidio Michaël Biology of Behaviour Unit, Laboratory of Fish Demography and Hydroecology, Applied and Fundamental Fish Research Center (AAFISH-RC), University of Liège, 22, Quai E. Van Beneden, 4020, Liège, Belgium aut Aquatic Ecology Springer Netherlands 49/4(2015-12-01), 481-497 1386-2588 49:4<481 2015 49 10452 https://doi.org/10.1007/s10452-015-9541-4 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10452-015-9541-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Benitez Jean-Philippe Biology of Behaviour Unit, Laboratory of Fish Demography and Hydroecology, Applied and Fundamental Fish Research Center (AAFISH-RC), University of Liège, 22, Quai E. Van Beneden, 4020, Liège, Belgium aut NATIONALLICENCE 700 1- Nzau Matondo Billy Biology of Behaviour Unit, Laboratory of Fish Demography and Hydroecology, Applied and Fundamental Fish Research Center (AAFISH-RC), University of Liège, 22, Quai E. Van Beneden, 4020, Liège, Belgium aut NATIONALLICENCE 700 1- Dierckx Arnaud Biology of Behaviour Unit, Laboratory of Fish Demography and Hydroecology, Applied and Fundamental Fish Research Center (AAFISH-RC), University of Liège, 22, Quai E. Van Beneden, 4020, Liège, Belgium aut NATIONALLICENCE 700 1- Ovidio Michaël Biology of Behaviour Unit, Laboratory of Fish Demography and Hydroecology, Applied and Fundamental Fish Research Center (AAFISH-RC), University of Liège, 22, Quai E. Van Beneden, 4020, Liège, Belgium aut NATIONALLICENCE 773 0- Aquatic Ecology Springer Netherlands 49/4(2015-12-01), 481-497 1386-2588 49:4<481 2015 49 10452