Naslov
Oxidative stress biomarkers in fish as biological responses to marine pollution and microplastics

Autori
Filipović Marijić, Vlatka ; Mijošek, Tatjana ; Redžović, Zuzana ; Erk, Marijana ; Ivanković, Dušica ; Lučev, Antonia Jelena ; Brkić, Amalia ; Kapetanović, Damir ; Gavrilović, Ana ; Radočaj, Tena ; Cukrov, Neven

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

Izvornik
International scientific conference “Marine ecosystems: research and innovations” : Book of abstracts (27-29 October, 2021, Odessa, Ukraine) / Minicheva G.G., Snigirova A.A. (eds.) Odessa- Istanbul, 2021. – 88 pp. / Minicheva G.G., Snigirova A.A. - Odesa, 2021, 25-25

ISBN
978-605-84837-2-9

Skup
International Scientific Conference Marine Ecosystems: Research and Innovations

Mjesto i datum
Odesa, Ukrajina, 27.10.2021. - 29.10.2021

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
marine fish ; microplastics ; Adriatic Sea

Sažetak
Modern life results in continuous impact of different pollutants to aquatic ecosystems, of which marine plastic is considered as global environmental problem. According to United Nations, 30% of marine fish contained microplastics in their tissues, which consequently can lead to gut blockages, reduced energy budgets or starvation and toxic effects (Rochman et al., 2019). Our research was conducted in Croatia, in the Southern Adriatic Sea near the Port of Ploče and Neretva River mouth, known by the pollution impact of harbor activities, agricultural runoff and tourism. Three fish species, Mullus barbatus Linnaeus, 1758, Merluccius merluccius Linnaeus, 1758, Pagellus erythrinus Linnaeus, 1758, were used as bioindicators of contaminant exposure by measurement of oxidative stress biomarkers in muscle tissue, comparing fish from nearshore and offshore area. Oxidative stress is a commonly observed response to microplastic impact, but also to metal and organic exposure (Qiao et al., 2019). Our goal was to compare different biomarkers in native fish as indication of oxidative stress (malondialdehyde, MDA and glutathione, GSH), organic and metal exposure (acetylcholinesterase, AChE) and general stress (total proteins, TP). Results showed that 10% of the total trawl catch contained waste, mostly plastic. Isolation of microplastics from the fish gut content confirmed its presence in almost all selected individuals. Although Adriatic Sea was reported as the third location in Europe by plastic waste abundance (Zeri et al., 2018), our results pointed that fish species still don’t show significant differences in biological responses to oxidative stress or metal and organic exposure between nearshore and offshore area. But presence of microplastics in the gut content of sampled fish highlights the importance of continuous biomonitoring and assessment of plastic accumulation in marine environment and organisms.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Biologija, Interdisciplinarne prirodne znanosti

POVEZANOST RADA