Elasmobranchs as bioindicators of pollution in the marine environment

Alves, Luís M.F.; Lemos, Marco F.L.; Cabral, Henrique; Novais, Sara C.

http://hdl.handle.net/10400.8/7388

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Abstract(s)

Bioindicator species are increasingly valuable in environmental pollution monitoring, and elasmobranch species include many suitable candidates for that role. By measuring contaminants and employing biomarkers of effect in relevant elasmobranch species, scientists may gain important insights about the impacts of pollution in marine ecosystems. This review compiles biomarkers applied in elasmobranchs to assess the effect of pollutants (e.g., metals, persistent organic pollutants, and plastics), and the environmental changes induced by anthropogenic activities (e.g., shifts in marine temperature, pH, and oxygenation). Over 30 biomarkers measured in more than 12 species were examined, including biotransformation biomarkers (e.g., cytochrome P450 1A), oxidative stressrelated biomarkers (e.g., superoxide anion, lipid peroxidation, catalase, and vitamins), stress proteins (e.g., heat shock protein 70), reproductive and endocrine biomarkers (e.g., vitellogenin), osmoregulation biomarkers (e.g., trimethylamine N-oxide, Na+/K+-ATPase, and plasma ions), energetic and neurotoxic biomarkers (e.g., lactate dehydrogenase, lactate, and cholinesterases), and histopathological and morphologic biomarkers (e.g., tissue lesions and gross indices).

Description

Acknowledgements : This study had the support of Fundaçao ˜ para a Ciˆencia e a Tecnologia (FCT) through the Strategic Project UID/MAR/04292/2020 granted to MARE – Marine and Environmental Sciences Centre, project BLUESHARKER (PTDC/CTA-AMB/29136/2017), co-financed by COMPETE2020 (POCI-01-0145-FEDER-029136), and grant awarded to Luís Alves (SFRH/BD/122082/2016). Sara Novais is funded by national funds (OE), through FCT – Fundação para a Ciência e a Tecnologia, I.P., in the scope of the framework contract foreseen in the numbers 4, 5, and 6 of the article 23, of the Decree-Law 57/2016, of August 29, changed by Law 57/2017, of July 19.

Keywords

Sharks Biomarkers Ecotoxicology Metals POPs

URI

http://hdl.handle.net/10400.8/7388

Citation

Luís M.F. Alves, Marco F.L. Lemos, Henrique Cabral, Sara C. Novais, Elasmobranchs as bioindicators of pollution in the marine environment, Marine Pollution Bulletin, Volume 176, 2022, 113418, ISSN 0025-326X, https://doi.org/10.1016/j.marpolbul.2022.113418