18 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 ...
Investimento na promoção e sustentabilidade dos recursos piscícolas da região C...
Alexandre, Carlos Manuel; Silva, Sara; Rato, Ana; Almeida, Pedro RaposoCom o objetivo de resolver alguns dos problemas identificados e desenvolver avanços técnicos e científicos que permitam otimizar o sucesso destas ações de repovoamento, foi, em 2018, dado início ao projeto “CRER - Adaptação do Posto Aquícola de Campelo para a Criação Experimental de Trutas Assilvestradas”, uma operação cofinanciada por Fundos Europeus (FEAPM - Fundo Europeu dos Assuntos Marítimos e das Pescas),...
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...
European lampreys: new insights on postglacial colonization, gene flow and spec...
Mateus, Catarina Sofia; Almeida, Pedro Raposo; Mesquita, Natacha; Quintella, Bernardo Ruivo; Alves, Maria JuditeIce ages are known to be the most dominant palaeoclimatic feature occurring on Earth, producing severe climatic oscillations and consequently shaping the distribution and the population structure of several species. Lampreys constitute excellent models to study the colonization of freshwater systems, as they commonly appear in pairs of closely related species of anadromous versus freshwater resident adults, thu...
Strong genomewide divergence between sympatric European river and brook lampreys
Mateus, Catarina Sofia; Stange, Madlen; Berner, Daniel; Roesti, Marius; Quintella, Bernardo Ruivo; Alves, Maria Judite; Almeida, Pedro RaposoLampreys, together with hagfishes, are the only extant representatives of jawless vertebrates and thus of prime interest for the study of vertebrate evolution [1]. Most lamprey genera occur in two forms with divergent life histories: a parasitic, anadromous and a non-parasitic, freshwater resident form [2-8]. The taxonomic status of such 'paired species' is disputed, however. While indistinguishable at larval s...
MtDNA markers reveal the existence of allopatric evolutionary lineages in the t...
Mateus, Catarina Sofia; Almeida, Pedro Raposo; Quintella, Bernardo Ruivo; Alves, Maria JuditeThe Iberian Peninsula has been identified as an important glacial refugium during the Pliocene and Pleistocene epochs for the genus Lampetra, providing intermittent refuge and postglacial opportunities for colonization and expansion. We used mitochondrial DNA markers to investigate the processes that have shaped present-day genetic constitution of the genus Lampetra within the Iberian Peninsula. We surveyed 1,1...
Os ácidos gordos usados como bio marcadores para desvendar os segredos da fase ...
Lança, Maria João; Machado, Maria Ana; Mateus, Catarina Sofia; Quintella, Bernardo Ruivo; Almeida, Pedro RaposoThe agnathans probably arose as the first vertebrates about 530 million years ago, in Cambrian period and after the evolutionary “boom” of multicellular organisms. The genus Petromyzon comprises only one anadromous and parasitic species, Petromyzon marinus L., known as sea lamprey which is widely distributed on both sides of the North Atlantic. Sea lamprey migrates twice during its life cycle between freshwater...
The Lusitanian toadfish as bioindicator of estuarine sediment metal burden: The...
Pedro, Sílvia; Duarte, Bernardo; Castro, Nuno; Almeida, Pedro Raposo; Caçador, Isabel; Costa, José LinoEarly diagenetic processes and anthropogenic activities are responsible for metal enrichment in estuarine sediments. The Tagus estuary (Portugal) is no exception, and as a result of past and present pressures, surface sediment contamination is still an issue in some areas. Since such metal loads may be incorporated by benthic organisms, this study analyzed the accumulation of trace metals in the Lusitanian toad...
Áreas marinhas protegidas da costa alentejana. Estudos científicos sobre os seu...
Castro, João J.; Almeida, Pedro Raposo; Costa, José Lino; Quintella, Bernardo; Cruz, Teresa; Castro, Nuno; Pereira, Tadeu; Costa, AndréBrochura de divulgação dos objetivos e principais resultados do projeto PROTECT - Estudos científicos para proteção marinha na costa alentejana.
Feeding strategy assessment through fatty acid profiles in muscle of adults sea...
Lança, Maria João; Machado, Maria; Ferreira, Rui; Alves-Pereira, Isabel; Quintella, Bernardo Ruivo; Almeida, Pedro RaposoFatty acid signature of sea lamprey Petromyzon marinus (L.) muscle were used as a tool to detect feeding strategies used during the species parasitic marine trophic phase. Adult sea lampreys were collected near the river mouth of six Portuguese river basins (i.e. Minho, Lima, Douro, Vouga, Mondego and Tagus) and muscle fatty acid profile characterized. The analysis on fatty acid composition of muscle neutral li...