A5100599497- Aquatic Ecosystems and Phytoplankton Dynamics
- Natural Language Processing Techniques
- Environmental Toxicology and Ecotoxicology
- Marine Bivalve and Aquaculture Studies
- Aquatic Invertebrate Ecology and Behavior
- Nanoparticles: synthesis and applications
- Gold and Silver Nanoparticles Synthesis and Applications
- Soil and Water Nutrient Dynamics
- Fish Ecology and Management Studies
- Advanced Nanomaterials in Catalysis
- Topic Modeling
- Heavy metals in environment
- Laser-Ablation Synthesis of Nanoparticles
- Algal biology and biofuel production
- Marine and coastal ecosystems
- Freshwater macroinvertebrate diversity and ecology
- Water Quality and Pollution Assessment
- Radioactivity and Radon Measurements
- Radioactive contamination and transfer
- Advanced Text Analysis Techniques
- Complex Network Analysis Techniques
- Marine Biology and Environmental Chemistry
- Nuclear and radioactivity studies
- Pesticide and Herbicide Environmental Studies
- Hydrology and Watershed Management Studies
Universidad Autónoma de Guadalajara
2024
Universidad Politécnica de Madrid
2015-2024
Departamento de Salud
2024
Consejo Superior de Investigaciones Científicas
1991-2022
Instituto Pirenaico de Ecología
2008-2022
University of the Basque Country
1981-2022
Institut de Radioprotection et de Sûreté Nucléaire
2013-2017
Université Toulouse - Jean Jaurès
2009-2016
Université Toulouse III - Paul Sabatier
2009-2016
Institut de Recherche en Informatique de Toulouse
2009-2016
Silver nanoparticles (AgNP) are likely to enter the aquatic environment because of their multiple uses. We have examined short-term toxicity AgNP and ionic silver (Ag+) photosynthesis in Chlamydomonas reinhardtii using fluorometry. ranged size from 10 200 nm with most particles around 25 nm. As determined by DGT (diffusive gradients thin films), ion-selective electrode, centrifugal ultrafiltration, about 1% was present as Ag+ ions. Based on total Ag concentration, 18 times higher for AgNO3...
Due to their hydrophobicity and relatively large surface area, microplastics (MPs) can act as carriers of hydrophobic pollutants in the ocean may facilitate transfer organisms. This study examined effects dietary exposure polystyrene MPs 0.5 4.5 μm alone with sorbed benzo[a]pyrene (BaP) on mussels Mytilus galloprovincialis order elucidate MP size presence BaP organism. were provided daily, mixed algae, during 26 days at equivalent mass (0.058 mg/L), corresponding 1000 particles/mL for 7.44 ×...
Mussels Mytilus edulis L. were fed a mixed diet comprising 2 algal species and ashed silt at range of concentrations simulating natural conditions both above below the level which pseudofaeces produced.Rates ingestion increased to an asymptotic value highest concentration tested.Although gut passage times declined with increasing rate, efficiencies food absorption remained relatively constant, probably signifying balance between total contents rate production digestive enzymes.Measured...
Various factors have been invoked to explain the toxicity of silver nanoparticles (AgNP) microorganisms including particle size and nature stabilizing coatings as well amount dissolved occurring in AgNP suspensions. In this study we assessed effects nine differently coated (chitosan, lactate, polyvinylpyrrolidone, polyethelene glycol, gelatin, sodium dodecylbenzenesulfonate, citrate, dexpanthenol, carbonate) AgNO3 on photosynthesis freshwater algae Chlamydomonas reinhardtii. We thus examined...
Summary A major challenge in environmental risk assessment of pollutants is establishing a causal relationship between field exposure and community effects that integrates both structural functional complexity within ecosystems. Pollution‐induced tolerance (PICT) concept evaluates whether have exerted selection pressure on natural communities. PICT detects pollutant has eliminated sensitive species from thereby increased its tolerance. the potential to link assessments ecological chemical...
Despite the exponential increase in human population at global scale, some rural areas have experienced a progressive abandonment over last decades. Under particular socioecological and policy contexts, changes demography may promote land-use and, consequently, alter ecosystem services (ES) supply. However, most studies on this topic targeted urban increase, whereas depopulation has been rarely addressed. Here, we examined how shifts demographic variables (human population, density, number...
Global change drivers including eutrophication, hydrological disturbance, climate change, chemical pollution, overexploitation, invasive species, and land-use are affecting the function structure of freshwater ecosystems. South American ecosystems especially threatened by combination rising human pressures on natural resources (i.e., water use, intensive agriculture, mining, deforestation, afforestation) lack adequate legislation economic for environmental protection restoration. We assess...
Biolog EcoPlates™ can be used to measure the carbon substrate utilisation patterns of microbial communities. This method results in a community-level physiological profile (CLPP), which yields very large amount data that may difficult interpret. In this work, we explore combination statistical techniques (particularly use generalised additive models [GAMs]) improve exploitation CLPP data. The strength GAMs lies their ability address highly non-linear relationships between response and set...
Biopesticides are increasingly being used to replace synthetic pesticides for pest control. This change raises concern its environmental impacts, especially on non-target organisms. In this study, the ecotoxicological effects of a potential nematicide from Spanish populations Artemisia absinthium (var. Candial) were evaluated freshwater and aquatic The study focused aqueous extract (hydrolate), principal component which ((−) -(Z) −2,6-dimethylocta-5,7-diene-2,3-diol) is responsible...
The composition of algal species and pigments the structural functional characteristics community were investigated in an acid stream southwestern Spain, Río Tinto. had low diversity showed few seasonal differences. It was mainly made up Klebsormidium flaccidum Kütz. (Silva, Mattox & Blackwell) that produced long greenish or purplish filaments, Pinnularia acoricola Hust. (producing brown patches) Euglena mutabilis Schmitz. filaments a consistent biofilm also included fungal hyphae, iron...
Abstract – The relationship of water quality and fish assemblages has been poorly documented in European reservoirs, despite being important for management ecological monitoring. We sampled the 14 Spanish reservoirs by boat electrofishing littoral multi‐mesh gillnets limnetic zone. Simultaneously, we assembled eight physical descriptors measured 20 features reservoirs. Multivariate analysis (ordination methods generalised additive models) showed that altitude trophic state (indicated...
Combined effects of food quantity and quality on physiological components growth (feeding rate, absorption efficiency, metabolic rate) were analyzed in cockles (Cerastoderma edule). Associated processes digestion given special consideration, including determinations gut passage time particles contents. Experiments designed to provide independent variations both dietary descriptors that standardized a volumetric basis: cubic millimeters per liter milligrams organics millimeter particles,...
Reservoir sediments are important archives of biogeochemical data, reflecting ecological processes that occur at the watershed system.In this paper, a preliminary study limnological significance major element composition and ratios in Spanish reservoirs is presented, by analysing two data-sets from different regions.Reservoirs Eastern Western Spain present significant differences chemical their sediments: higher average values for calcium magnesium appear reservoirs, while, Spain, mean found...
Abstract Restoration ecology that maximizes ecosystem services ( ES ) requires planning at large spatial scales, which are often the most meaningful for functioning and supply. As economic resources to undertake ecological restoration scales scarce, prioritizing sites enhance multiple supply is critical. We present Relative Aggregated Value of Ecosystem Services RAVES index, prioritize based on assessment . tested heterogeneity identify relevant scale managing apply index using a local case...
Plastics, especially microplastics (<5 mm in length), are anthropogenic polymer particles that have been detected almost all environments. Microplastics extremely persistent pollutants and act as long-lasting reactive surfaces for additives, organic matter, toxic substances. Biofilms microbial assemblages a sink particulate including microplastics. They ubiquitous freshwater ecosystems provide key services promote biodiversity help sustain ecosystem function. Here, we conceptual framework to...
Summary 1. To assess the influence of nutrient limitation on copper toxicity, periphitic communities from an oligotrophic stream were exposed to for six 12 days with and without supply nutrients (mainly P). 2. In contrast hypothesis that cycling in mature biofilms would protect them Cu low high biomass did not differ their physiological response after 6 exposure. 3. A clear P‐limitation toxicity was observed. Periphytic previously fertilised 18 three times more tolerant than control...