Tourism is the main income source for the Maldives, but concurrently, it represents a growing threat to its marine ecosystem. Here, we monitored the bioaccumulation of 15 emerging contaminants (ECs) in the Maldivian reef sponges Spheciospongia vagabunda collected in two resort islands (Athuruga and Thudufushi, Ari Atoll) and an inhabited island (Magoodhoo, Faafu Atoll), and we analysed their impact on different sponge cellular stress biomarkers. Caffeine and the insect repellent DEET were detected in sponges of all the islands, whereas the antibiotic erythromycin and the UV filter 4-methylbenzylidene camphor were found in resort islands only. Although concentrations were approximately a few ng/g d.w., we quantified various induced cellular effects, in particular an increase of the levels of the enzyme glutathione S-transferase involved in cell detoxification. Our results highlight the importance to increase awareness on ECs pollution, promoting the use of more environmental friendly products to achieving the sustainable development goals.

Rizzi, C., Seveso, D., De Grandis, C., Montalbetti, E., Lancini, S., Galli, P., et al. (2023). Bioconcentration and cellular effects of emerging contaminants in sponges from Maldivian coral reefs: A managing tool for sustainable tourism. MARINE POLLUTION BULLETIN, 192(July 2023) [10.1016/j.marpolbul.2023.115084].

Bioconcentration and cellular effects of emerging contaminants in sponges from Maldivian coral reefs: A managing tool for sustainable tourism

Rizzi, C
Primo
;
Seveso, D
Secondo
;
Montalbetti, E;Galli, P;Villa, S
Ultimo
2023

Abstract

Tourism is the main income source for the Maldives, but concurrently, it represents a growing threat to its marine ecosystem. Here, we monitored the bioaccumulation of 15 emerging contaminants (ECs) in the Maldivian reef sponges Spheciospongia vagabunda collected in two resort islands (Athuruga and Thudufushi, Ari Atoll) and an inhabited island (Magoodhoo, Faafu Atoll), and we analysed their impact on different sponge cellular stress biomarkers. Caffeine and the insect repellent DEET were detected in sponges of all the islands, whereas the antibiotic erythromycin and the UV filter 4-methylbenzylidene camphor were found in resort islands only. Although concentrations were approximately a few ng/g d.w., we quantified various induced cellular effects, in particular an increase of the levels of the enzyme glutathione S-transferase involved in cell detoxification. Our results highlight the importance to increase awareness on ECs pollution, promoting the use of more environmental friendly products to achieving the sustainable development goals.
Articolo in rivista - Articolo scientifico
Biomonitoring; Emerging contaminants; Enzymatic activity; Heat shock proteins; Maldives; Marine sponge;
English
1-giu-2023
2023
192
July 2023
115084
open
Rizzi, C., Seveso, D., De Grandis, C., Montalbetti, E., Lancini, S., Galli, P., et al. (2023). Bioconcentration and cellular effects of emerging contaminants in sponges from Maldivian coral reefs: A managing tool for sustainable tourism. MARINE POLLUTION BULLETIN, 192(July 2023) [10.1016/j.marpolbul.2023.115084].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/472939
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