86 documents found, page 1 of 9
Genome divergence between European anchovy ecotypes fuelled by structural varia...
Meyer, Laura; Barry, Pierre; Moan, Alan Le; Arbiol, Christine; Castilho, Rita; Lingen, Carl Van der; Chlaïda, Malika; McKeown, Niall; Ernande, BrunoThe formation of ecotypes is driven by evolutionary mechanisms that reduce gene flow through complex interactions among ecological, historical and genomic factors. In the European anchovy (Engraulis encrasicolus), marine and coastal ecotypes have been identified in the northeast Atlantic and the Mediterranean Sea, yet the genomic basis of their divergence remains unclear. Here, we present the first genome-scale...
Resolving the population structure and demographic history of the European anch...
Martin Pujolar, José; Gardiner, Courtney E. C.; Heyden, Sophie von der; Robalo, Joana I.; Castilho, Rita; Lopes da Cunha, Regina; Henriques, RominaThe spatial distribution of the European anchovy has expanded in the northern part of its range in the Northeast Atlantic in recent decades. However, whether this results from a northward range shift of southern conspecifics or the expansion of a local northern population is unknown. Using for the first time whole-genome sequencing, we explore current patterns of genetic diversity and population sub-structuring...
Tour operators as a tool to improve information on data‐deficient cetacean species
Peres dos Santos, Rui Pedro; Rodríguez, Yasmina; Sears, Richard; Magno, Ramiro; Castilho, RitaUnderstanding the distribution and behaviour of species is crucial for ecosystem assessment and economic evaluations. Despite global research efforts, some cetacean species or populations remain data deficient. False killer whales (Pseudorca crassidens) are among these species, possibly due to their pelagic behaviour and high mobility. This study focused on the Azorean Archipelago, an ecologically rich region i...
Little migrants: assessment of stranded loggerhead turtles (Caretta caretta) so...
Corona, Luana Santos; Galatoulas, Adam; Nicolau, Lídia; Pereira, Andreia F. T.; Sá, Sara F.; Lopes da Cunha, Regina; Marçalo, Ana; Castilho, RitaMaritime activities affect the migratory routes of marine organisms, including loggerhead turtles (Caretta caretta). The coastal waters of mainland Portugal lie along these routes, providing foraging grounds but lacking nesting beaches, making them ideal for studying turtle migration. This study presents the first assessment of the natal origins of loggerheads in the North-East Atlantic. We analysed the genetic...
Sex‐linked differentiation in commercially exploited fishes: rethinking populat...
Gardiner, Courtney E. C.; Heyden, Sophie von der; Matthee, Conrad A.; Nielsen, Einar E.; Pujolar, José M.; Robalo, Joana I.; Castilho, RitaUnderstanding how genomic structure links with ecological and evolutionary processes is critical for forecasting species responses to dynamic marine environments, especially in commercially exploited marine species, where fishing pressure can impact genomic integrity. Here we investigate Merluccius paradoxus, a commercially exploited demersal fish that appears to be undergoing a range expansion along the southe...
Building a Portuguese coalition for biodiversity genomics
Marques, João P.; Alves, Paulo C.; Amorim, Isabel R.; Lopes, Ricardo J.; Moura, Monica; Myers, Eugene; Sim-sim, Manuela; Sousa-Santos, CarlaThe diverse physiography of the Portuguese land and marine territory, spanning from continental Europe to the Atlantic archipelagos, has made it an important repository of biodiversity throughout the Pleistocene glacial cycles, leading to a remarkable diversity of species and ecosystems. This rich biodiversity is under threat from anthropogenic drivers, such as climate change, invasive species, land use changes...
Building a Portuguese coalition for biodiversity genomics
Marques, João P.; Alves, Paulo C.; Amorim, Isabel R.; Lopes, Ricardo Jorge; Moura, Monica; Myers, Eugene; Sim-Sim, Maria; Sousa-Santos, CarlaThe diverse physiography of the Portuguese land and marine territory, spanning from continental Europe to the Atlantic archipelagos, has made it an important repository of biodiversity throughout the Pleistocene glacial cycles, leading to a remarkable diversity of species and ecosystems. This rich biodiversity is under threat from anthropogenic drivers, such as climate change, invasive species, land use changes...
Genomics goes deeper in fisheries science: The case of the blackspot seabream (...
Cunha, Regina L.; Robalo, Joana I.; 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...
Predicting the future of our oceans-evaluating genomic forecasting approaches i...
Layton, K. K. S.; Brieuc, M. S. O.; Castilho, Rita; Diaz‐Arce, N.; Estévez‐Barcia, D.; Fonseca, V. G.; Fuentes‐Pardo, A. P.; Jeffery, N. W.Climate change is restructuring biodiversity on multiple scales and there is a pressing need to understand the downstream ecological and genomic consequences of this change. Recent advancements in the field of eco-evolutionary genomics have sought to include evolutionary processes in forecasting species' responses to climate change (e.g., genomic offset), but to date, much of this work has focused on terrestria...
Green and Hawksbill sea turtles of Eastern Atlantic: new insights into a global...
Ferreira-Airaud, Betânia; Vieira, Sara; Branco, Maria; Pina, Antunes; Soares, Venceslau; Tiwari, Manjula; Witt, Matthew; Castilho, Rita; Teodosio, MariaSea turtles are critical components of marine ecosystems, and their conservation is important for Ocean Governance and Global Planet Health. However, there is limited knowledge of their ecology in the Gulf of Guinea. To fill this knowledge gap, this study presents the first integrative assessment of green and hawksbill turtles in the region, combining nesting surveys over 9 years and telemetry data, to offer in...