Integrated Assessment of CO 2 -Induced Acidification Lethal and Sub-Lethal Effects on Tropical Mussels Perna perna

• Published in: Applied Sciences
• Main Authors: Lorena da Silva Souza, Estefanía Bonnail, Luis Felipe de Almeida Duarte, Augusto Cesar, Inmaculada Riba, Camilo Dias Seabra Pereira
• Format: Article in Journal/Newspaper
• Language: English
• Published: MDPI AG 2023
• Subjects: CO 2 enrichment; mollusks; ocean acidification; biomarkers; carbon capture storage; Technology; T; Engineering (General). Civil engineering (General); TA1-2040; Biology (General); QH301-705.5; Physics; QC1-999; Chemistry; QD1-999; Ocean acidification
• Online Access: https://doi.org/10.3390/app13127199; https://doaj.org/article/90a93a08490d43e580b1c0564262fe3a

Leakages of CO 2 capture and storage systems from the seabed are able to cause significant adverse biological effects in marine species. Adult mussels were exposed to different CO 2 enrichment scenarios (pH from 8.3 to 6.0) for 96 h, and endpoints (lysosomal membrane deterioration, lipid peroxidation and primary damages in DNA) were assessed. Mortality and reduced health status can occur after short exposure of the tropical mussel Perna perna to pH levels lower than 7.5. Results pointed out cytogenotoxic effects in the hemolymph and gills after 48 and 96 h of exposure, respectively. These findings should be considered when environmental monitoring approaches are performed in tropical marine areas employing CCS strategies.