A5018504336- Pharmaceutical and Antibiotic Environmental Impacts
- Aquaculture disease management and microbiota
- Antibiotics Pharmacokinetics and Efficacy
- Aquaculture Nutrition and Growth
- Fish Ecology and Management Studies
- Freshwater macroinvertebrate diversity and ecology
- Marine Bivalve and Aquaculture Studies
- Soil and Water Nutrient Dynamics
- Groundwater and Watershed Analysis
- Geography and Environmental Studies
- Seaweed-derived Bioactive Compounds
- Microbial Community Ecology and Physiology
- Pharmacological Effects and Assays
- Insect and Arachnid Ecology and Behavior
- Protein Hydrolysis and Bioactive Peptides
- Marine Sponges and Natural Products
- Environmental Toxicology and Ecotoxicology
- Coastal wetland ecosystem dynamics
- Marine and environmental studies
- Magnetic and Electromagnetic Effects
- Geological Modeling and Analysis
- Business and Management Studies
- Soil Geostatistics and Mapping
- Marine and fisheries research
- Ophthalmology and Visual Impairment Studies
University of Coimbra
2012-2023
Rede de Química e Tecnologia
2018-2019
This paper describes a method for the determination of 41 antibiotics from seven different classes in gilthead sea bream (Sparus aurata) by ultra-high-performance liquid chromatography with tandem mass spectrometry (UPLC-MS/MS). Sulfonamides, trimethoprim, tetracyclines, macrolides, quinolones, penicillins and chloramphenicol were simultaneously determined. Fourteen procedures sample treatment tested an extraction acetonitrile ethylenediaminetetra acetic acid was found to be best option. The...
Abstract With the increase in global mean surface temperature predicted for near future, stream water will also increase. Simultaneously, quality is likely to decrease (e.g., due increases nutrient and pollutant concentrations). The objective of this study was evaluate individual combined effects nutrients concentration on periphyton respiration, as a surrogate metabolism. Stones naturally colonized with an unpolluted mountain Central Portugal were sampled seasonally over year, incubated...
Abstract The increase in the flow of fine sediments to aquatic ecosystems (AH), as a consequence human activities, is widespread stressor that may alter structure biological communities and ecosystem processes. In this study, effects (Ø < 2 mm) on (biomass composition) activity (decomposer sporulation rate) litter‐associated microorganisms (mainly AH) were investigated. For this, leaf discs in‐stream preconditioned Quercus robur incubated microcosms for 30 days under influence four...
Abstract With the increase in global mean surface temperature predicted for near future, stream water will also increase. Simultaneously, quality is likely to decrease (e.g., due increases nutrient and pollutant concentrations). The objective of this study was evaluate individual combined effects nutrients concentration on periphyton respiration, as a surrogate metabolism. Stones naturally colonized with an unpolluted mountain Central Portugal were sampled seasonally over year, incubated...
Temperate streams flowing through deciduous forests derive most of their energy and carbon from allochthonous organic matter supplied by the riparian vegetation mostly during autumnal litter fall. The decomposition this coarse particulate (CPOM) supports aquatic foodwebs throughout year. During process, part CPOM is converted into fine (FPOM). In study, we assessed relationships among rates a dominant species, oak leaf (estimated bag approach in presence absence macroinvertebrates), benthic...
Anthropogenic chemical contamination represents a key stressor of natural environments with pharmaceuticals comprising particular group emerging pollutants the potential to induce biological responses in non-target organisms. Therefore, an analytical method based on ultra-high-performance liquid chromatography coupled time-of-flight tandem mass spectrometry (UHPLC-TOF-MS) was developed for estuarine and seawaters, targeting 63 globally used (including amoxicillin, ciprofloxacin,...
Seaweeds have become an important asset in several sectors, including the food and feed industries, cosmetics, pharmaceuticals, among others. Whether harvested or reared, interest algae has been growing worldwide due to resources they offer, proteins, vitamins, minerals, carbohydrates, essential fatty acids, dietary fiber, as well sources of biologically active compounds. However, given their morphology physiology, harvest cultivation environments, are prone presence hazards, pharmaceuticals...
In the present study, a multi-class multi-residue method for simultaneous detection and determination of antibiotics in European sea bass (Dicentrarchus labrax) was developed validated. The based on UHPLC-MS/MS proved to be rapid, highly selective sensitive tool, requiring minimum sample preparation, screening 47 compounds from eight different classes. validation performed according EU regulation 2002/657/EC, proving method's suitability application routine analysis. applied analysis 30...
Background: The prevalence of myopia is increasing worldwide. Several studies were reported about progression in the adult population with a high level education. Objective: To investigate changes refractive errors, biometric measurements, and environmental variables among medical university students during two years Brazil. Methods: A two-year longitudinal prospective study was proposed. Cycloplegic examinations conducted, corneal topography ocular optical biometry. lens power calculated by...