Single and combined ecotoxicological effects of ocean warming, acidification and lanthanum exposure on the surf clam (Spisula solida).

Autor: Figueiredo C; MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal; Division of Oceanography and Marine Environment, IPMA - Portuguese Institute for Sea and Atmosphere, Av. Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal; Associate Laboratory i4HB - Institute for Health and Bioeconomy, School of Science and Technology, NOVA University Lisbon, 2819-516, Caparica, Portugal. Electronic address: cafigueiredo@fc.ul.pt., Grilo TF; MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal., Oliveira R; Division of Oceanography and Marine Environment, IPMA - Portuguese Institute for Sea and Atmosphere, Av. Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal., Ferreira IJ; LAQV-REQUIMTE, Chemistry Department, NOVA School of Science and Technology, 2829-516, Caparica, Portugal., Gil F; Aquário Vasco da Gama, Rua Direita Do Dafundo, 1495-718, Cruz Quebrada, Portugal., Lopes C; Division of Oceanography and Marine Environment, IPMA - Portuguese Institute for Sea and Atmosphere, Av. Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal; CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, Avenida General Norton de Matos S/N, 4450-208, Matosinhos, Portugal., Brito P; Division of Oceanography and Marine Environment, IPMA - Portuguese Institute for Sea and Atmosphere, Av. Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal; CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, Avenida General Norton de Matos S/N, 4450-208, Matosinhos, Portugal., Ré P; MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal., Caetano M; Division of Oceanography and Marine Environment, IPMA - Portuguese Institute for Sea and Atmosphere, Av. Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal; CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, Avenida General Norton de Matos S/N, 4450-208, Matosinhos, Portugal., Diniz M; Associate Laboratory i4HB - Institute for Health and Bioeconomy, School of Science and Technology, NOVA University Lisbon, 2819-516, Caparica, Portugal; UCIBIO - Applied Molecular Biosciences Unit, Department of Chemistry / Department of Life Sciences, School of Science and Technology, NOVA University Lisbon, 2819-516, Caparica, Portugal., Raimundo J; Division of Oceanography and Marine Environment, IPMA - Portuguese Institute for Sea and Atmosphere, Av. Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal; CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, Avenida General Norton de Matos S/N, 4450-208, Matosinhos, Portugal.
Jazyk: angličtina
Zdroj: Chemosphere [Chemosphere] 2022 Sep; Vol. 302, pp. 134850. Date of Electronic Publication: 2022 May 09.
DOI: 10.1016/j.chemosphere.2022.134850
Abstrakt: Lanthanum (La) is one of the most abundant emergent rare earth elements. Its release into the environment is enhanced by its use in various industrial applications. In the aquatic environment, emerging contaminants are one of the stressors with the ability to compromise the fitness of its inhabitants. Warming and acidification can also affect their resilience and are another consequence of the growing human footprint on the planet. However, from information gathered in the literature, a study on the effects of ocean warming, acidification, and their interaction with La was never carried out. To diminish this gap of knowledge, we explored the effects, combined and as single stressors, of ocean warming, acidification, and La (15 μg L -1 ) accumulation and elimination on the surf clam (Spisula solida). Specimens were exposed for 7 days and depurated for an additional 7-day period. Furthermore, a robust set of membrane-associated, protein, and antioxidant enzymes and non-enzymatic biomarkers (LPO, HSP, Ub, SOD, CAT, GPx, GST, TAC) were quantified. Lanthanum was bioaccumulated after just one day of exposure, in both control and climate change scenarios. A 7-day depuration phase was insufficient to achieve control values and in a warming scenario, La elimination was more efficient. Biochemical response was triggered, as highlighted by enhanced SOD, CAT, GST, and TAC levels, however as lipoperoxidation was observed it was insufficient to detoxify La and avoid damage. The HSP was largely inhibited in La treatments combined with warming and acidification. Concomitantly, lipoperoxidation was highest in clams exposed to La, warming, and acidification combined. The results highlight the toxic effects of La on this bivalve species and its enhanced potential in a changing world.
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Databáze: MEDLINE
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