5 documents found, page 1 of 1
Fishways in Portugal: status, main findings and research needs
Santos, J.M.; Quaresma, A.L.; Romão, F.; Amaral, S.D.; Mameri, D.; Santo, M.; Bochechas, J.; Telhado, A.; Godinho, F.N.; Pádua, J.; Pinheiro, P.J.Anthropogenic barriers fragment Portuguese rivers, threatening endemic freshwater fish communities. This study compiled national inventories and peer-reviewed research (2002–2024) to quantify fishway implementation, evolution and typology, while evaluating fish performance from published research. One hundred fishways built between 1950 and 2024 were recorded, half of which were constructed after the implementa...
Catches, sales and discards: Small-scale fisheries in a Portuguese Marine park
Castro, N.; Romão, F.; Castro, J. J.; Pereira, T. J.; Pedro, S.; Viegas, V.; Costa, J. L.The natural park ‘‘Parque Natural do Sudoeste Alentejano e Costa Vicentina’’ (PNSACV; SW coast of continental Portugal) includes a recently implemented marine protected area of 2 km along its coast, where important, although not quantified, small-scale commercial fisheries are carried out. Conservation measures were implemented since 2011. The present study aimed to estimate the fishing effort, catches, discard...
Use of electromyogram telemetry to assess the behavior of the Iberian barbel (L...
Alexandre, C.M.; Quintella, B.R.; Silva, A.T.; Mateus, C.S.; Romão, F.; Branco, P.; Ferreira, M.T.; Almeida, P.R.Decline in fish species populations due to river regulation by dams and weirs promoted the development of fishways, which are becoming one of the most common measures for the restoration of connectivity in rivers. Fishways efficiency can be species specific and thus monitoring and evaluation, and subsequent adjustments to design and hydraulic features, are required to inform potential users prior to installatio...
Swimming performance of two Iberian cyprinids: the Tagus nase Pseudochondrostom...
Romão, F.; Quintella, B.R.; Pereira, T.; Alexandre, C.; Almeida, Pedro R.The main purpose of this study was to gather swimming performance information for two endemic cyprinids of the Iberian Peninsula to contribute to the optimization of fish ways. Critical swimming speed (Ucrit) was determined for the Tagus nase Pseudochondrostoma polylepis (Steindachner, 1864) and for the bordallo Squalius carolitertii (Doadrio, 1988) in a swimming tunnel. From a total of 80 P. polylepis tested, ...
Critical swimming speed of two Iberian cyprinids: the Tagus nase Pseudochondros...
Romão, F.; Quintella, B.R.; Pereira, T.; Alexandre, C.; Almeida, P.R.The main purpose of this study was to gather swimming performance information for two endemic cyprinids of the Iberian Peninsula to contribute to the optimization of fish ways. Critical swimming speed (Ucrit) was determined for the Tagus nase Pseudochondrostoma polylepis (Steindachner, 1864) and for the bordallo Squalius carolitertii (Doadrio, 1988) in a swimming tunnel. From a total of 80 P. polylepis tested, ...