21 documents found, page 1 of 3
Marine microbial community taxonomic and functional indicators to volcanic and ...
Duarte, Bernardo; Cruz-Silva, Ana; Feijão, Eduardo; Pereira, Marcelo; Nunes, Mónica; Figueiredo, Andreia; Matos, Ana Rita; Dias, RicardoIn recent years, the growth in Antarctic tourism has stimulated research on the anthropogenic impacts on the region, boosted by advances in OMIC technologies applied to polar microbial communities. This study aimed to assess the human impacts on marine prokaryotic and viral communities of Deception Island by identifying potential taxonomic, functional, and resistome indicators of both anthropogenic and natural/...
Marine microbial community taxonomic and functional indicators to volcanic and ...
Duarte, Bernardo; Cruz-Silva, Ana; Feijão, Eduardo; Pereira, Marcelo; Nunes, Mónica; Figueiredo, Andreia; Matos, Ana Rita; Dias, RicardoIn recent years, the growth in Antarctic tourism has stimulated research on the anthropogenic impacts on the region, boosted by advances in OMIC technologies applied to polar microbial communities. This study aimed to assess the human impacts on marine prokaryotic and viral communities of Deception Island by identifying potential taxonomic, functional, and resistome indicators of both anthropogenic and natural/...
A multivariate approach to chlorophyll a fluorescence data for trace element ec...
Duarte, Bernardo; Gameiro, Carla; Utkin, Andrei Borissovitch; Matos, Ana Rita; Caçador, Isabel; Fonseca, Vanessa; Cabrita, Maria TeresaThe increasing uncontrolled development of human activities and consequent increase in the production and release into the marine realm of potentially harmful substances highlights the need to develop efficient and high-throughput screening (HTS) tools. Bio-optical tools, such as laser-induced fluorescence (LIF) and pulse amplitude modulated (PAM) fluorometry, emerge as efficient non-invasive techniques for tox...
First screening of biocides, persistent organic pollutants, pharmaceutical and ...
Duarte, Bernardo; Gameiro, Carla; Matos, Ana Rita; Figueiredo, Andreia; Silva, Marta Sousa; Cordeiro, Carlos; Caçador, Isabel; Reis-Santos, PatrickIn recent years, the Antarctic territory has seen a rise in the number of tourists and scientists. This has led to an increase in the anthropogenic footprint in Antarctic ecosystems, namely in terms of emerging contaminants, such as Biocides, Persistent Organic Pollutants (POPs) as well as Pharmaceutical and Personal Care Products (PPCPs). Yet scarce information on the presence of these emerging contaminants is...
Toxicity Going Nano: Ionic Versus Engineered Cu Nanoparticles Impacts on the Ph...
Franzitta, Marco; Feijão, Eduardo; Cabrita, Maria Teresa; Gameiro, Carla; Matos, Ana Rita; Marques, João Carlos; Goessling, Johannes W.Increasing input of Metal Engineered Nano Particles (MeENPs) in marine ecosystems has raised concerns about their potential toxicity on phytoplankton. Given the lack of knowledge on MeENPs impact on these important primary producers, the effects of Copper Oxide (CuO) ENPs on growth, physiology, pigment profiles, fatty acid (FA) metabolism, and oxidative stress were investigated in the model diatom Pheodactylum ...
Integrating In Situ and Ocean Color Data to Evaluate Ecological Quality under t...
Brito, Ana C.; Garrido-Amador, Paloma; Gameiro, Carla; Nogueira, Marta; Moita, Maria Teresa; Cabrita, Maria TeresaThe Water Framework Directive (WFD) aims at evaluating the ecological status of European coastal water bodies (CWBs). This is a rather complex task and first requires the use of long-term databases to assess the effect of anthropogenic pressure on biological communities. An in situ dataset was assembled using concomitant biological, i.e., chlorophyll a (Chl a) and environmental data, covering the years from 199...
Marine heat waves alter gene expression of key enzymes of membrane and storage ...
Feijão, Eduardo; Franzitta, Marco; Cabrita, Maria Teresa; Caçador, Isabel; Duarte, Bernardo; Gameiro, Carla; Matos, Ana RitaAcross the globe, heat waves are getting more intense and frequent. Diatoms are a major group of microalgae at the base of the marine food webs and an important source of long chain polyunsaturated fatty acids that are transferred through the food web. The present study investigates the possible impacts of temperature increase on lipid classes and expression of genes encoding enzymes related to lipid metabolism...
Integrating in situ and ocean color data to evaluate ecological quality under t...
Brito, Ana C.; Garrido-Amador, Paloma; Gameiro, Carla; Nogueira, Marta; Calixto De Jesus Moita Garnel, Maria Teresa; Cabrita, Maria TeresaTheWater Framework Directive (WFD) aims at evaluating the ecological status of European coastal water bodies (CWBs). This is a rather complex task and first requires the use of long-term databases to assess the e ect of anthropogenic pressure on biological communities. An in situ dataset was assembled using concomitant biological, i.e., chlorophyll a (Chl a) and environmental data, covering the years from 1995 ...
Overview of Phytoplankton Indicators and Biomarkers as Key-Tools for Trace Elem...
Cabrita, Maria Teresa; Duarte, Bernardo; Gameiro, Carla; Matos, Ana Rita; Caçador, Isabel; Godinho, Rita M.Contamination of trace elements is still ubiquitous in estuaries. The main sources of trace element pollution are directly linked to anthropogenic activities commonly taking place in these coastal ecosystems. Trace element loading in and impacts on estuarine waters can be assessed and monitored by using indicator species equipped with efficient biomarkers of trace element stress. Phytoplankton, which are the pr...
ECOSSISTEMAS DA PLATAFORMA CONTINENTAL
Domingos, Isabel; Gameiro, Carla; Ferreira, Afonso; Adão, Helena; Amorim, Ana; Brotas, Vanda; Cabral, Henrique; Chainho, Paula; Costa, José LinoTerra é um planeta azul, em que 70% da superfície está ocupada por mar. Mais de 90% desse enorme volume está a profundidades superiores a 200 metros, onde a luz escasseia e a vida toma contornos diferentes dos que se observam nas zonas onde a energia solar penetra. O fundo do mar, na sua escuridão, é a última grande fronteira marinha a ser explorada. Denominado “mar profundo”, esse gigantesco ambiente, cujo pot...