14 documents found, page 1 of 2
New evidence of alternative migration patterns for two Mediterranean potamodrom...
Rato, Ana; Alexandre, Carlos Manuel; Pedro, Sílvia; Mateus, Catarina; Pereira, Esmeralda; Belo, Ana Filipa; Quintella, BernardoIberian barbel (Luciobarbus bocagei Steindachner, 1864) and Iberian nase (Pseudochondrostoma polylepis Steindachner, 1864) are two Mediterranean potamodromous fish species known to perform annual upstream migrations to reach spring spawning grounds. In the Mondego River basin, at the Coimbra dam, migratory movement patterns and individual size structure were assessed through a video recording monitoring system ...
Do catadromous thinlip grey mullet beneft from shifting to freshwater? A perspe...
Pereira, Esmeralda; Jorge, André; Quintella, Bernardo; Gomes da Silva, Marco; R. Almeida, Pedro; Lança, Maria JoãoAbstract To investigate the potential benefts of the catadromous thinlip grey mullet Chelon ramada Risso, 1827) migration to freshwater, the total lipid content and fatty acid (FA) profle of female’s muscle and gonads caught in both the estuary and river were analyzed. The freshwater contingent presented a higher body condition, greater muscle gross energy, and larger gonads with higher lipid reserves. These an...
Connectivity patterns and gene flow among Chelon ramada populations
Pereira, Esmeralda; Mateus, Catarina Sofia; Alves, Maria Judite; Almeida, Rita; Pereira, Joana; Quintella, Bernardo R.; Almeida, Pedro R.Catadromous species, such as the thinlip grey mullet Chelon ramada (Risso 1827), exhibit complex life history traits and migratory behaviours that have different repercussions at the population level and species genetic structure. To study the genetic variation and infer patterns of gene flow and population connectivity along species’ distribution across the Northeast Atlantic coast and the Mediterranean Sea, 4...
The decline of the ecosystem services generated by anadromous fish in the Iberi...
Almeida, Pedro R.; Mateus, Catarina Sofia; Alexandre, Carlos M.; Pedro, Sílvia; Boavida-Portugal, Joana; Belo, Ana Filipa; Pereira, EsmeraldaThis work aims to present an historical review of the ecosystem services provided by anadromous fish (i.e., species that migrate from the sea to the river to spawn) throughout Human time, as well as of the main related threats, focusing on the Iberian Peninsula region. Anadromous fish provide important provision, cultural, regulatory and supporting ecosystem services across their distribution range and have bee...
The decline of the ecosystem services generated by anadromous fish in the Iberi...
Almeida, Pedro Raposo; Mateus, Catarina Sofia; Alexandre, Carlos Manuel; Pedro, Sílvia; Boavida-Portugal, Joana; Belo, Ana Filipa; Pereira, EsmeraldaThis work aims to present an historical review of the ecosystem services provided by anadromous fish (i.e., species that migrate from the sea to the river to spawn) throughout Human time, as well as of the main related threats, focusing on the Iberian Peninsula region. Anadromous fish provide important provision, cultural, regulatory and supporting ecosystem services across their distribution range and have bee...
LIFE Agueda-Gaining Habitat for Migratory Fish in the Vouga River Basin
Pedro, Sílvia; Alexandre, Carlos; Mateus, Catarina; Quintella, Bernardo; Lança, Maria João; Belo, Ana Filipa; Pereira, Esmeralda; Rato, Ana SofiaHabitat 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,...
Migratory Patterns of Two Potamodromous Fish Species Assessed through Fish-Pass...
Rato, Ana Sofia; Alexandre, Carlos; Pedro, Sílvia; Mateus, Catarina; Pereira, Esmeralda; Belo, Ana Filipa; Quintella, Bernardo R.; Quadrado, Maria F.The Iberian barbel (Luciobarbus bocagei Steindachner, 1864) and the Iberian nase (Pseudochondrostoma polylepis Steindachner, 1864) are two potamodromous species that migrate upstream in freshwater environments to reproduce. Thus, river fragmentation is a major threat to these species, and fish passes are one of the most-used mitigation measures to restore the longitudinal connectivity of impounded rivers, enabl...
Impact of Fisheries on Allis Shad's (Alosa alosa L.) Spawning Population Struct...
Belo, Ana; Mateus, Catarina; Quintella, Bernardo; Pereira, Esmeralda; Moreira, André; Oliveira, Roberto; Batista, Carlos; Almeida, PedroAllis shad (Alosa alosa L.) populations have suffered declines and even regional extinction across their distribution range, mainly due to river impoundment, overexploitation, and pollution. In Portugal, the species is classified as Endangered (EN). This fish is regarded as a valuable delicacy, and commercial fisheries dedicated to this species in Portugal are found in rivers in Minho, Lima, Cávado, Douro, Voug...
Evidence of High Levels of Gene Flow in a Widely Distributed Catadromous Specie...
Pereira, Esmeralda; Catarina, Mateus; Maria Judite, Alves; Rita, Almeida; Joana, Pereira; Bernardo, Quintella; Pedro, AlmeidaThe thin-lipped grey mullet Chelon ramada (Risso, 1827) is a catadromous species that is distributed along the Northeast Atlantic, from the Norwegian coastline down to Mauritania, on the African coast (20–60◦ N, 18◦ E–42º W), and displays diverse patterns of habitat use and migratory behaviors. This widely distributed species is observed in large shoals throughout coastal areas and in brackish and freshwater en...
Temporal patterns of the catadromous thinlip grey mullet migration in freshwater
Pereira, Esmeralda; Quintella, Bernardo R.; Lança, Maria João; Alexandre, Carlos M.; Mateus, Catarina S.; Pedro, Sílvia; Belo, Ana Filipa; Rato, AnaThe thinlip grey mullet (Chelon ramada Risso, 1827) is a catadromous fish that performs massive migrations to freshwater habitats for feeding purposes that can assume a structuring role on riverine ecology due to the biomass involved in these movements. Seasonal movements of thinlip grey mullet through a vertical slot fish pass located in River Mondego (Portugal) were continuously monitored between 2013 and 201...