27 documents found, page 1 of 3
When sardines disappear: tracking common dolphin, delphinus delphis, distributi...
Brouder, Sarah; Marques, Tiago A.; Oliveira, Nuno; Monteiro, Pedro; Gonçalves, Jorge Manuel Santos; Marçalo, AnaThe common dolphin, Delphinus delphis, is the most abundant cetacean species along the western Iberian Peninsula and faces many anthropogenic threats, with bycatch being the most impactful. Its preferred prey, sardine (Sardina pilchardus), has shown fluctuating abundance over the past decade, potentially influencing dolphin distribution. This study provides the first insights into common dolphin distribution al...
Aeromonas spp. Prevalence, virulence, and antimicrobial resistance in an ex sit...
Grilo, Miguel; Amaro, Guadalupe; Chambel, Lélia; Marques, Carolina S.; Marques, Tiago A.; Gil, Fátima; Sousa-Santos, Carla; Robalo, JoanaEx situ breeding programs are important conservation tools for endangered freshwater fish. However, developing husbandry techniques that decrease the likelihood of disease, antimicrobial resistance, and virulence determinants acquisition during this process is challenging. In this pilot study, we conducted a captivity experiment with Portuguese nase (Iberochondrostoma lusitanicum), a critically endangered leuci...
A wastewater-based epidemiology tool for COVID-19 surveillance in Portugal
Monteiro, Sílvia; Rente, Daniela; Cunha, Mónica V.; Gomes, Manuel Carmo; Marques, Tiago A.; Lourenço, Artur B.; Cardoso, Eugénia; Álvaro, PedroThe presence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in wastewater produced interest in its use for sentinel surveillance at a community level and as a complementary approach to syndromic surveillance. With this work, we set the foundations for wastewater-based epidemiology (WBE) in Portugal by monitoring the trends of SARS-CoV-2 RNA circulation in the community, on a nationwide perspect...
Aeromonas spp. prevalence, virulence, and antimicrobial resistance in an ex sit...
Grilo, Miguel; Amaro, Guadalupe; Chambel, Lelia; Marques, Carolina S.; Marques, Tiago A.; Gil, Fátima; Sousa-Santos, Carla; Robalo, Joana I.Ex situ breeding programs are important conservation tools for endangered freshwater fish. However, developing husbandry techniques that decrease the likelihood of disease, antimicrobial resistance, and virulence determinants acquisition during this process is challenging. In this pilot study, we conducted a captivity experiment with Portuguese nase (Iberochondrostoma lusitanicum), a critically endangered leuci...
Discrimination and surveillance of infectious severe acute respiratory syndrome...
Monteiro, Silvia; Rente, Daniela; Cunha, Mónica V.; Marques, Tiago A.; Cardoso, Eugénia; Vilaça, João; Coelho, Norberta; Brôco, Nuno; Carvalho, MartaSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RNA has been extensively detected in raw wastewater in studies exploring wastewater-based epidemiology (WBE) for early warning purposes. Nonetheless, only a few limited studies investigated the presence of SARS-CoV-2 in treated wastewaters to determine the potential health risks across the water cycle. The detection of SARS-CoV-2 has been done mostly ...
Interactions between air-breathing marine megafauna and artisanal fisheries in ...
Alexandre, Sofia; Marçalo, Ana; Marques, Tiago A.; Pires, Alexandra; Rangel, Mafalda; Ressurreição, Adriana; Monteiro, Pedro; Erzini, KarimThe coastal waters off Western Iberia are an important fishing ground and a marine megafauna foraging area. Overlap between fishery target species and the diet of several air breathing marine megafauna species can lead to negative interactions and consequently conservation and economic issues. This work aimed to assess marine megafauna (cetaceans, marine birds, and marine turtles) – fishery interactions through...
Sympatric threatened Iberian leuciscids exhibit differences in Aeromonas divers...
Grilo, Miguel; Chambel, Lélia; Marques, Tiago A.; Sousa, Carla; Robalo, Joana; Oliveira, ManuelaAssessments regarding health aspects of Iberian leuciscids are limited. There is currently an information gap regarding effects of infectious diseases on these populations and their role as a possible conservation threat. Moreover, differences in susceptibility to particular agents, such as Aeromonas spp., by different species/populations is not clear. To understand potential differences in Aeromonas diversity ...
Molecular epidemiology, virulence traits and antimicrobial resistance signature...
Grilo, Miguel; Isidoro, Sara; Chambel, Lélia; Marques, Carolina S.; Marques, Tiago A.; Sousa-Santos, C.; Robalo, Joana; Oliveira, ManuelaDespite the fact that freshwater fish populations are experiencing severe declines worldwide, our knowledge on the interaction between endangered populations and pathogenic agents remains scarce. In this study, we investigated the prevalence and structure of Aeromonas communities isolated from the critically endangered Iberochondrostoma lusitanicum, a model species for threatened Iberian leuciscids, as well as ...
COVID-19: nothing is normal in this pandemic
Gonçalves, Luzia; Turkman; Brás-Geraldes, Carlos; Marques, Tiago A.; SOUSA, LISETEThis manuscript brings attention to inaccurate epidemiological concepts that emerged during the COVID-19 pandemic. In social media and scientific journals, some wrong references were given to a "normal epidemic curve" and also to a "log-normal curve/distribution". For many years, textbooks and courses of reputable institutions and scientific journals have disseminated misleading concepts. For example, calling h...
Modelling the distribution of a commercial NE-Atlantic Sea Cucumber, Holothuria...
Félix, Pedro M.; Pombo, Ana; Silva, Francisco Azevedo e; Simões, Tomás; Marques, Tiago A.; Melo, Ricardo; Rocha, Cristina; Sousa, João; Venâncio, ElianaThere is an increasing demand for sea cucumbers, for human consumption, mainly from Asian markets and, as a consequence, NE-Atlantic species are now new targets for exploitation and exportation. Holothuria mammata is one of the most valuable species in Europe. However, the lack of historical economic interest in this species in most European countries has also led to a lack of studies concerning biological and ...