Naslov
Fate and effects of microplastics in freshwaters: insights from a microcosm experiment

Autori
Grgić, Ivana ; Previšić, Ana ; Puđak, Matea ; Rožman, Marko ; Karačić, Zrinka

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
SEFS 12, Symposium for European Freshwater Sciences : Abstract Book / - , 2021, 286-286

Skup
Symposium for European Freshwater Sciences (SEFS 12)

Mjesto i datum
Dublin, Irska, 25.07.2021. - 30.07.2021

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
microplastic flux ; caddisflies ; moss ; proteome ; metabolome

Sažetak
Ever-increasing anthropogenic activities have led to elevated concentrations of plastics and microplastics (<5mm) in freshwater environments, the presence of which has been shown to adversely affect many aquatic organisms. As freshwater systems play a fundamental ecological role, the need to examine the impact microplastics have on these environments and their biota is dire. The aim of this study was to improve our understanding on how microplastics affect aquatic insects at the aquatic-terrestrial habitat linkage. A twomonth microcosm experiment was conducted with a simplified freshwater food web containing nonvascular macrophytes and caddisfly (Trichoptera) larvae feeding mainly as shredders. The microcosm was exposed to a mixture of four types of microplastics (polypropylene, polyethylene, polystyrene, high-density polyethylene) at environmentally relevant concentrations, after which samples of caddisfly tissues and cases, moss and sediment were collected and analyzed. Our results indicate that caddisfly larvae mostly ingest polyethylene, but only a small quantity of particles accumulates in their tissues. No microplastic particles were detected in emerged adults. The response of caddisflies and moss to microplastic stress at the molecular level is currently being investigated, the results of which will further be discussed. Considering the far- reaching impacts microplastics can have on aquatic biota, the results of this study are essential for broadening our understanding of emerging contaminants in the environment.

Izvorni jezik
Engleski

Znanstvena područja
Interdisciplinarne prirodne znanosti

POVEZANOST RADA