Assessment of the environmental impacts of ocean acidification (OA) and carbon capture and storage (CCS) leaks using the amphipod Hyale youngi

• DOI: 10.1007/s10646-017-1783-6
• Publication Date: 2017-03-18T15:40:15Z
• Authors: T. A. Goulding; M. R. De Orte; D. Szalaj; M. D. Basallote; T. A. DelValls; A. Cesar
• Keywords: 0106 biological sciences; Carbon Sequestration; Oceans and Seas; Amphipod; Hydrogen-Ion Concentration; 01 natural sciences; Hyale youngi; 333; Carbon; 6. Clean water; Carbon dioxide capture and storage (CCS); Metal mobilization; Metals; 13. Climate action; Climate change; Animals; Amphipoda; Seawater; 14. Life underwater; Ocean acidification (OA); Water Pollutants, Chemical; Environmental Monitoring

This study aims to ascertain the effects of CO2 induced water acidification and leaks from Carbon Capture and Storage activities on the South American amphipod Hyale youngi. A 10-day acute toxicity test was performed using sediments from two sites located inside the Santos Estuarine System. They were subjected to five pH treatments (8.1, 7.6, 7.0, 6.5, and 6.0). Metals (Cd, Cu, Cr, Pb, Ni and Zn) and the metalloid As were analyzed to determine the influence of their acidification-related mobility on the amphipods mortality. The results showed that mortality becomes significant when compared to control in pH 6.5 in the Canal de Piaçaguera sediment (contaminated) and at pH 6.0 in Ilha das Palmas sediment (reference).