22 documents found, page 1 of 3
Mitonuclear genetics reveals a novel perspective on the stock structure and fis...
Queiroz-Brito, Maria Clara G.; Mendonça, Fernando F.; Robalo, Joana; Arocha, Freddy; Diaha, N’Guessan Constance; Amandé, Monin Justin; Sow, Fambaye NgomThe skipjack tuna, Katsuwonus pelamis is the worldwide most fished and economically significant tuna species. In the Atlantic Ocean, the management strategy of the International Commission for the Conservation of Atlantic Tunas (ICCAT) includes two stocks: (a) eastern (SKJ-E) and (b) western (SKJ-W) stocks. However, the genetic cohesiveness between these stocks remains poorly understood. Here, we provide this i...
Genomics goes deeper in fisheries science: The case of the blackspot seabream (...
Cunha, Regina L.; Robalo, Joana; Francisco, Sara M.; Farias, Inês; Castilho, Rita; Figueiredo, IvoneRecent advances in genomics are an essential contributor to the assessment of fish stocks by providing a finescale identification of the species’ genetic boundaries. The blackspot seabream, Pagellus bogaraveo, is a commercial sparid distributed across the northeast (NE) Atlantic and the Mediterranean. Within the NE Atlantic, three P. bogaraveo stocks are currently defined: Azores; Atlantic Iberian waters; Celti...
The First Report of Holothuria (Thymiosycia) impatiens (Forsskål, 1775), (Holot...
Kalthoumi, Donia; Francisco, Sara M.; Miladi, Malek; Ruiz-Canales, Antonio; AZZOUNA, Atf; Robalo, JoanaAbstract: For the first time, specimens of Holothuria impatiens are reported from the Tunisian coast, supported by molecular (COI sequencing) and morphological (examination of ossicles) analyses. For comparative purposes, Holothuria impatiens samples were genetically analyzed with existing data from Spain, Italy, and the Red Sea. In addition to their external morphology, an external substance covering the indiv...
Contributos para o estudo dos Estabelecimentos Prisionais em Portugal
Robalo, Joana; Aleixo, SofiaO tema de investigação que aqui se apresenta surge no âmbito da dissertação de mestrado em arquitectura, em curso, que estuda os espaços especialmente concebidos e projetados para privar um indivíduo da sua liberdade após uma sentença, actualmente designados por Estabelecimentos Prisionais (EP). Analisando as evoluções que estes espaços de privação sofreram até a atual designação, desde as prisões que serviam a...
Three mitochondrial lineages and no Atlantic-Mediterranean barrier for the bogu...
Cunha, Regina L.; BEN FALEH, Abderraouf; Francisco, Sara; Šanda, Radek; Vukic, Jasna; Corona, Luana; DIA, Mamadou; Glavicic, Igor; Kassar, AbderrahmaneMarine species exhibiting wide distributional ranges are frequently subdivided into discrete genetic units over limited spatial scales. This is often due to specifc life-history traits or oceanographic barriers that prevent gene fow. Fine-scale sampling studies revealed distinct phylogeographic patterns in the northeastern Atlantic and the Mediterranean, ranging from panmixia to noticeable population genetic st...
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...
Sympatric threatened Iberian leuciscids exhibit differences in Aeromonas divers...
Grilo, Miguel; Chambel, Lélia; Marques, Tiago A.; Sousa-Santos, C.; 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 ...
Climatic alterations influence bacterial growth, biofilm production and antimic...
Grilo, Miguel; Pereira, Ana; Sousa-Santos, C.; Robalo, Joana; Oliveira, ManuelaClimate change is expected to create environmental disruptions that will impact a wide array of biota. Projections for freshwater ecosystems include severe alterations with gradients across geographical areas. Life traits in bacteria are modulated by environmental parameters, but there is still uncertainty regarding bacterial responses to changes caused by climatic alterations. In this study, we used a river wa...
Genetic hypervariability of a Northeastern Atlantic venomous rockfish
Francisco, Sara M.; Castilho, Rita; Lima, Cristina S.; Almada, Frederico José Oliveira de; Rodrigues, Francisca; Šanda, Radek; Vukic, JasnaBackground: Understanding the interplay between climate and current and historical factors shaping genetic diversity is pivotal to infer changes in marine species range and communities’ composition. A phylogeographical break between the Atlantic and the Mediterranean has been documented for several marine organisms, translating into limited dispersal between the two basins. Methods: In this study, we screened t...
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 ...