The Gulf of Naples located in a high anthropized coastal area is subjected to an infrastructural intervention for the installation of a submarine power pipeline. In order to evaluate the distribution of contaminants in the seafloor sediments, a preliminary study has been conducted in the area using multivariate techniques. The statistic approach was performed to gain insights on the occurrence of organic and inorganic contaminants within the area, aiming to identify the relevant hot spots. Three geographical sub-areas influenced by different contaminant association were recognized: Torre Annunziata (TA), Capri (CA), and middle offshore (MO). TA and CA resulted marked by a severe contamination pattern due to anthropogenic pressures. In addition, the influence of the depositional basin in governing the contamination trend has been pointed out. The supervised technique PLS_DA resulted to be a powerful tool in addressing the complexity of the huge dataset acquired during the marine survey, highlighting the main trends in the variability of quality indicators, orienting thus the deeper investigations during follow-up monitoring activities.
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http://dx.doi.org/10.1007/s11356-022-19989-z | DOI Listing |
Environ Pollut
December 2024
Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Naples, Italy; NBFC, National Biodiversity Future Center, Piazza Marina 61, 9013, Palermo, Italy; Department of Life Sciences, University of Trieste, Via Licio Giorgieri, 34127, Trieste, Italy. Electronic address:
Nowadays, ENMs/NPLs particles have not yet been extensively measured in the environment, but there is increased concern that this size fraction may be more widely distributed and hazardous than larger-sized particles. This study aimed to examine the bioaccumulation potential of engineered nanomaterials and nanoplastics (ENMs/NPLs) across marine food webs, focusing on plankton communities and commercial fish species (Engraulis encrasicolus and Scomber colias) from the Gulf of Naples. Laboratory experiments on plankton assemblages exposed to fluorescent polystyrene nanoplastics (PS-NPs, 100 nm) for 24h at concentrations ranging from 0.
View Article and Find Full Text PDFChemosphere
December 2024
Department of Chemistry, Istituto Zooprofilattico Sperimentale del Mezzogiorno, via Salute 2, Portici, Naples, 80055, Italy.
A massive Planktothrix rubescens bloom was observed during 2022 in the Lake Avernus, a volcanic lake located in Campania Region (Southern Italy). The cyanobacterial mass migrated, through a channel, to the near Gulf of Pozzuoli, causing the contamination of two marine sites dedicated to mussel farming, thus posing a potential risk for consumers' health. Mussel and water samples, from both the sea and the lake were collected weekly and analyzed by liquid chromatography coupled to tandem mass spectrometry, for identification and quantification of 10 microcystins.
View Article and Find Full Text PDFAnimals (Basel)
November 2024
Istituto Zooprofilattico Sperimentale del Mezzogiorno, 80035 Portici, Italy.
In a marine ecosystem, the most sensitive organisms to environmental changes, mainly to anthropic pressures, are fishes and invertebrates. Therefore, they are considered the ideal targets to indirectly evaluate the health of an entire ecosystem. Teleost fishes, particularly those that occupy the highest trophic levels, can accumulate toxic substances through their diet.
View Article and Find Full Text PDFSci Total Environ
December 2024
Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy; Department of Ecosustainable Marine Biotechnology, Stazione Zoologica Anton Dohrn, Naples, Italy. Electronic address:
This study investigates the combined toxicity of microplastics (MPs) and florfenicol (FLO) on biotransformation enzymes and oxidative stress biomarkers in the liver and kidney of yellowfin seabream (Acanthopagrus latus). Fish were fed 15 mg kg of FLO and 100 or 500 mg kg of MPs for 10 days. Biomarkers, including ethoxyresorufin-O-deethylase, glutathione-S-transferase, superoxide dismutase, catalase, glutathione peroxidase, malondialdehyde (MDA), and protein carbonylation (PC), were measured in both organs at 1, 7, and 14 days post-exposure.
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