17 documents found, page 1 of 2
Upstream movement of juvenile eels (Anguilla anguilla L.) in a southwestern Eur...
Monteiro, R.M.; Domingo, I.; Almeida, P.R.; Costa, J.L.; Pereira, E.; Belo, A.F.; Portela, T.; Telhado, A.; Quintella, B.R.The upstream movement of juvenile eels (median total length (TL) = 138 mm) in the Mondego River, Portugal, was analysed between January 2017 and August 2019. A total of 12,019 individuals (TL ranging from 60 to 287 mm) were counted and measured on an eel ladder at Coimbra weir, 44 km upstream from the river mouth, during their upstream movements. Although eels were counted throughout the year, a clear seasonal ...
Avaliação socioeconómica e cultural da pesca do salmão-do-atlântico em Portugal
Raposo, I.; Silva, S.; Alexandre, C.M.; Stratoudakis, Y.; Belo, A.F.; Mateus, C.S.; Lança, M.J.; Almeida, P.R.O salmão-do-atlântico (Salmo salar) é uma espécie anádroma emblemática do Hemisfério Norte e autóctone em Portugal. Segundo a IUCN o seu estatuto de conservação global é Pouco Preocupante (LC), mas em Portugal encontra-se classificado como Criticamente em Perigo (CR), sendo provavelmente a população desta espécie mais ameaçada à escala global. A sua abundância na Europa diminuiu em toda a área nativa, fruto de ...
Riverine communities and management systems for anadromous fisheries in the Ibe...
Stratoudakis, Y.; Antunes, C.; Correia, C.; Belo, A.F.; Almeida, P.R.Anadromous fish challenge human jurisdictions and are exposed to cumulative pressures originating in the marine, freshwater, and terrestrial realms. Here, a detailed questionnaire survey to anadromous fishers (river Mondego, n = 35; international river Minho/Miño, n = 38) assesses and compares perceptions on sustainability and management for important small-scale estuarine and inland fisheries in the NW Iberian...
Fish pass use by shads (Alosa alosa L. and Alosa fallax (Lacépède, 1803)): impl...
Belo, A.F.; Cardoso, G.; Pereira, E.; Quintella, B.R.; Mateus, C.S.; Alexandre, C.; Batista, C.; Telhado, A.; Quadrado, M.F.; Almeida, P.R.Fish pass monitoring is essential to ensure the device's effectiveness as a mitigation measure for river impoundment, guaranteeing the longitudinal continuity of rivers, which is particularly important for diadromous fish that depend on obligatory migrations to freshwater reproduction (anadromous) or feeding areas (catadromous) to complete their life cycle. The upstream migration of the anadromous allis (Alosa ...
Lamprey fisheries: history, trends and management
Almeida, P.R.; Arakawa, H.; Aronsuu, K.; Baker, C.; Blair, S.R.; Beaulaton, L.; Belo, A.F.; Kitson, J.; Kucheryavyy, A.; Kynard, B.; Lucas, M.L.Three anadromous lamprey species support important commercial fisheries in the northern hemisphere, sea lamprey in the Iberian Peninsula and France, European river lamprey in the Baltic Sea countries and Russia, and Arctic lamprey in Russia. Pacific lamprey, Caspian lamprey, Korean lamprey and pouched lamprey are harvested for subsistence and local commerce on the Pacific coast of North America, and in Russia, ...
Fish pass use by shads (Alosa alosa L. and Alosa fallax [Lacépède, 1803]): Impl...
Belo, A.F.; Cardoso, G.; Pereira, E.; Quintella, B.R.; Mateus, C.S.; Alexandre, C.M.; Batista, C.; Telhado, A.; Quadrado, M.F.; Almeida, P.R.Fish pass monitoring is essential to ensure the device's effectiveness as a mitigation measure for river impoundment, guaranteeing the longitudinal continuity of rivers, which is particularly important for diadromous fish that depend on obligatory migrations to freshwater reproduction (anadromous) or feeding areas (catadromous) to complete their life cycle. The upstream migration of the anadromous allis (Alosa ...
Living on the Edge: Management and Conservation of Atlantic Salmon at the South...
Alexandre, C.; Silva, S.; Mateus, C.S.; Lança, M.J.; Quintella, B.R.; Belo, A.F.; Domingues, A.; Rato, A.S.; Oliveira, R.; Moreira, A.; Pereira, J.Atlantic salmon (Salmo salar L.) are an emblematic anadromous fish species that inhabit marine and freshwater ecosystems in the Northern Hemisphere. In Portugal, the southern limit of its global distribution range, the species is classified as Critically Endangered (CR), and occurs only in the Minho and Lima rivers, which hold the most abundant populations, with occasional confirmed occurrences in the Cávado an...
LIFE Agueda—Gaining Habitat for Migratory Fish in the Vouga River Basin
Pedro, S.; Alexandre, C.M.; Mateus, C.S.; Quintella, B.R.; Lança, M.J.; Belo, A.F.; Pereira, E.; Rato, A.S.; Oliveira, I.; Silva, S.; Almeida, P.R.Habitat loss and overfishing are the most significant threats to diadromous fish, most of them of high socioeconomic and conservationist importance, such as Alosa alosa, Alosa fallax, Petromyzon marinus and Anguilla anguilla. The main objective of the LIFE Águeda project (LIFE16 ENV/PT/000411) is the removal of hydro-morphological pressures towards the reestablishment of conditions for a good ecological status,...
Improving participated management under poor fishers’ organization: Anadromous ...
Almeida, P.R.; Stratoudakis, Y.; Belo, A.F.; Correia, C.River defragmentation works and an effective fishway with a monitoring station have created conditions for adaptive fishery management in the estuary of Mondego River in central Portugal. Since 2013 fishers, scientists and authorities annually meet to update data for anadromous fish and rules for the upcoming fishing season. Meetings provide an opportunity for approximately 100 licenced fishers to participate, ...
Interação competitiva de Brachiaria brizantha e B. plantaginea sob doses reduzi...
Silva, A.C.; Freitas, R.S.; Ferreira, L.R.; Silva, A.A.; Belo, A.F.Objetivou-se neste trabalho avaliar a interação competitiva de Brachiaria brizantha e B. plantaginea sob doses reduzidas de fluazifop-p-butil, aplicadas em diferentes épocas. O delineamento experimental adotado foi o de blocos casualizados, com quatro repetições, seguindo o arranjo fatorial 6x3, com seis doses de fluazifop-p-butil (7,5; 12,5; 18,75; 31,25; 43,75 e 62,5 g ha-1), aplicadas em três épocas (14, 24 ...