| Autor: |
Goulding TA; Departamento de Química-Física, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz, UNESCO/UNITWIN Wicop, Polígono Río San Pedro s/n, Puerto Real, 11510, Cádiz, Spain. tom@megapesca.com., De Orte MR; Departamento de Ciencias do Mar, Instituto do Mar, Campus Baixada Santista, Universidade Federal de São Paulo, Av. Alm. Saldanha da Gama, 89-Ponta da Praia/SP CEP:11030-400, Santos, SP, Brazil., Szalaj D; Faculdade de Ciências, Instituto Dom Luiz, Universidade de Lisboa, Campo Grande, 1749-016, Lisboa, Portugal., Basallote MD; Departamento de Ciencias do Mar, Instituto do Mar, Campus Baixada Santista, Universidade Federal de São Paulo, Av. Alm. Saldanha da Gama, 89-Ponta da Praia/SP CEP:11030-400, Santos, SP, Brazil., DelValls TA; Departamento de Química-Física, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz, UNESCO/UNITWIN Wicop, Polígono Río San Pedro s/n, Puerto Real, 11510, Cádiz, Spain., Cesar A; Departamento de Ciencias do Mar, Instituto do Mar, Campus Baixada Santista, Universidade Federal de São Paulo, Av. Alm. Saldanha da Gama, 89-Ponta da Praia/SP CEP:11030-400, Santos, SP, Brazil. |
| Abstrakt: |
This study aims to ascertain the effects of CO 2 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). |
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