Callinectes sapidus, commonly known as the blue crab, is an invasive alien species that is rapidly colonizing marine-coastal ecosystems in the Mediterranean Sea. In this undergraduate thesis project, the effects of two environmental contaminants, mercury (a traditional contaminant) and bisphenol-S (BPS, an emerging contaminant), were evaluated on the gills and hepatopancreas of C. sapidus specimens collected from the Venetian Lagoon, an area where the species is now well established. The crabs were exposed for 7 days under laboratory conditions to environmentally relevant concentrations of mercury, BPS, and their mixture. To assess their effects on this alien species, several biochemical analyses were performed on gill and hepatopancreas samples. In particular, biomarkers of stress and oxidative damage were measured.
Callinectes sapidus, comunemente noto come granchio blu, è una specie aliena invasiva che sta rapidamente colonizzando gli ecosistemi marino-costieri del Mediterraneo. In questo tirocinio di laurea sono stati valutati gli effetti di due contaminanti ambientali, il mercurio (un contaminante tradizionale) e il Bisfenolo-S (BPS, un contaminante emergente) sulle branchie e sull'epatopancreas di C. sapidus raccolti nella Laguna di Venezia, area in cui la specie è ormai stabilmente presente. Gli esemplari sono stati esposti per 7 giorni in laboratorio a concentrazioni ecologicamente rilevanti di mercurio e BPS e della loro miscela. Per valutarne gli effetti sulla specie aliena, sono state condotte diverse analisi biochimiche su campioni di branchia ed epatopancreas. In particolare, sono stati misurati biomarker di stress e di danno ossidativo.
Effetti di contaminanti ambientali tradizionali ed emergenti nella specie aliena Callinectes sapidus
RIGODANZA, GIOVANNI MARTINO
2024/2025
Abstract
Callinectes sapidus, commonly known as the blue crab, is an invasive alien species that is rapidly colonizing marine-coastal ecosystems in the Mediterranean Sea. In this undergraduate thesis project, the effects of two environmental contaminants, mercury (a traditional contaminant) and bisphenol-S (BPS, an emerging contaminant), were evaluated on the gills and hepatopancreas of C. sapidus specimens collected from the Venetian Lagoon, an area where the species is now well established. The crabs were exposed for 7 days under laboratory conditions to environmentally relevant concentrations of mercury, BPS, and their mixture. To assess their effects on this alien species, several biochemical analyses were performed on gill and hepatopancreas samples. In particular, biomarkers of stress and oxidative damage were measured.| File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/92033