Ana Ramos

Ana Ramos
Tavira Ciência Viva Science Centre

BSc Biology; PhD Marine Sciences

About

26
Publications
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475
Citations

Publications

Publications (26)
Article
Full-text available
Natural sciences have traditionally been disseminated in outreach activities as formal, one-way presentations. Nevertheless, innovative strategies are being increasingly developed using arts, gaming, and sketching, amongst others. This work aimed at testing an alternative and innovative way to engage non-expert audiences in ocean and coastal geolog...
Conference Paper
Full-text available
Artificial nourishment of sandy beaches using sediment from borrow areas located on the continental shelf is increasingly a recommended solution for reversing the erosion process that affects the coastal zone. However, the impact of sand extraction in the shelf and deposition on the beach on the benthic communities (structure and functioning) is st...
Article
Full-text available
Marine flowering plants can reproduce sexually and clonally, and the relative contribution of these two modes can be dependent on the environmental conditions. Zostera marina, a seagrass widely distributed in the northern hemisphere, can form annual and perennial meadows with different proportions of sexual versus clonal propagation depending on th...
Preprint
Full-text available
Natural sciences have traditionally been disseminated in outreach activities as formal one-way presentations. Nevertheless, innovative strategies are being increasingly developed using arts, gaming, sketching, amongst others. This work aimed at testing an alternative and innovative way to engage non-expert audiences in ocean and coastal geology, th...
Conference Paper
Full-text available
Resumo O projeto "Caracterização do impacte da extração de areias e avaliação da taxa de recuperação do ecossistema-ECOEXA" tem por objetivo estudar o impacto associado à extração de areia em manchas de empréstimo de sedimento, destinadas à alimentação artificial de praias, na integridade do fundo marinho. A monitorização servirá para estudar a evo...
Poster
Full-text available
This poster presentation is an output of SardiTemp project (FCT and POLISBOA funding; ref. LISBOA-01-0145-FEDER-032209) that results from a collaboration between several institutions. This poster presentation aims to explain the different approaches to unveil how climate change will impact marine fish, in particular small pelagic fish, using the Eu...
Article
Full-text available
Small pelagic fishes have the ability to disperse over long distances and may present complex evolutionary histories. Here, Old World Anchovies (OWA) were used as a model system to understand genetic patterns and connectivity of fish between the Atlantic and Pacific basins. We surveyed 16 locations worldwide using mtDNA and 8 microsatellite loci fo...
Article
The boreo-montane wetland butterfly species Colias palaeno has a European distribution from the Alps to northern Fennoscandia. Within its European range, the species’ populations have shrunk dramatically in recent historical times. Therefore, detailed baseline knowledge of the genetic makeup of the species is pivotal in planning potential conservat...
Article
Full-text available
Ice ages within Europe forced many species to retreat to refugia, of which three major biogeographic basic types can be distinguished: "Mediterranean", "Continental" and "Alpine / Arctic" species. However, this classification often fails to explain the complex phylogeography of European species with a wide range of latitudinal and altitudinal distr...
Article
The copepod Calanus glacialis plays a key role in the Arctic pelagic ecosystem. Despite its ecological importance and ongoing climate changes, limited knowledge at the genomic level has hindered the understanding of the molecular processes underlying environmental stress responses and ecological adaptation. Transcriptome data was generated from an...
Article
Full-text available
Ancient oceanic archipelagos of similar geological age are expected to accrue comparable numbers of endemic lineages with identical life history strategies, especially if the islands exhibit analogous habitats. We tested this hypothesis using marine snails of the genus Conus from the Atlantic archipelagos of Cape Verde and Canary Islands. Together...
Article
Full-text available
Calanus glacialis is a major component of Arctic zooplankton and a keystone species in Arctic marine ecosystems. Due to the observed climate warming, its numbers are being reduced to the advantage of a sibling Atlantic species Calanus finmarchicus. We developed and characterized the first set of microsatellite markers in this species to investigate...
Article
Full-text available
Genetic variation (mtDNA) of the European conger eel, Conger conger, was compared across five locations in the north-eastern Atlantic (Madeira, Azores, South Portugal, North Portugal and Ireland) and one location in the western Mediterranean (Mallorca). Genetic diversity of conger eel was high, and differentiation among regions was not significant....
Article
Full-text available
The physiology of the unicellular green alga Dunaliella salina in response to abiotic stress has been studied for sev-eral decades. Early D. salina research focused on its remarkable salinity tolerance and ability, upon exposure to vari-ous abiotic stresses, to accumulate high concentrations of β-carotene and other carotenoid pigments valued highly...
Article
In green algae, the final step of the plastidial methylerythritol phosphate (MEP) pathway is catalyzed by 4-hydroxy-3-methylbut-2-enyl diphosphate reductase (HDR; EC: 1.17.1.2), an enzyme proposed to play a key role in the regulation of isoprenoid biosynthesis. Here we report the isolation and functional characterization of a 1959-bp Dunaliella sal...
Article
Full-text available
In the present work the characterization of different strains of Dunaliella salina from established cell culture collections and various isolates from solar saltworks located in the Canary Island, as well as one mutant, was carried out in order to assess the existence of intraspecific differences and to determine the potential productivity of each...
Article
In the present work the characterization of different strains of Dunaliella salina from established cell culture collections and various isolates from solar saltworks located in the Canary Island, as well as one mutant, was carried out in order to assess the existence of intraspecific differences and to determine the potential productivity of each...
Article
Full-text available
The halotolerant green alga Dunaliella salina accumulates large amounts of beta-carotene when exposed to various stress conditions. Although several studies concerning accumulation and biotechnological production of beta-carotene have been published, the molecular basis and regulation of the genes involved in carotenoid biosynthesis in D. salina ar...
Article
Full-text available
Dunaliella salina (Dunal) Teodoresco (1905) is a green unicellular alga able to withstand severe salt, light, and nutrient stress, adaptations necessary to grow in harsh environments such as salt ponds. In response to such growth conditions, this microalga accumulates high amounts of beta-carotene in its single chloroplast. In this study, we show t...

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Projects

Projects (2)
Project
To characterize the fortnightly switching of residual flow drivers (barotropic and baroclinic) in a type of estuaries that has been largely unexplored.
Project
Small pelagic fishes (SPF) have extreme ecological and economical importance in marine ecosystems. Nonetheless, SPF are particularly vulnerable to environmental changes, being ectothermic, their performance is highly dependent on aerobic metabolism and on sea surface temperature. In this project, we will implement a multidisciplinary approach to determine the impact of temperature increment on SPF, using the European pilchard Sardina pilchardus as a model-system. We aim to understand the response of two different populations of sardines in terms of metabolic, physiological, reproductive and behavioural responses to climate change. Several questions will be addressed in this proposal: do sardines from different geographic locations have different metabolic, physiological and behavioural responses at increasing temperatures? Does temperature increments affect reproduction? What are the carry-over and acute effects on sardine larvae when exposed to higher temperatures? How will populations? distribution respond to future climate change projections? The adaptation to changing environments and how organisms will respond to climate change are key discussion topics in contemporary biology and this project will contribute with novel and original findings to the study of the biological and ecological adaptation of marine fishes to ocean warming.