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Título: | Sodium fluxes in Tamoatá, Hoplosternum litoralle, exposed to formation water from Urucu Reserve (Amazon, Brazil) |
Autor: | Baldisserotto, Bernardo Garcia, Luciano Benaduce, Ana Paula da Silva Duarte, Rafael Mendonça Nascimento, Thiago L. Gomes, Levy de Carvalho Chippari-Gomes, Adriana Regina Val, Adalberto Luis |
Palavras-chave: | Barium Ion Calcium Ion Chloride Iron Magnesium Magnesium Ion Manganese Potassium Sodium Water Well Water Bioaccumulation Biological Uptake Brine Formation Water Iron Juvenile Manganese Oil Field Oil Production Osmoregulation Pollution Exposure Sodium Species Diversity Survival Teleost Animals Tissue Blood Carcass Controlled Study Fish Gill Hoplosternum Litoralle Kidney Liver Nonhuman Osmoregulation Priority Journal Sodium Transport Sodium Urine Level Water Analysis Amazon River Hoplosternum |
Data do documento: | 2012 |
Revista: | Archives of Environmental Contamination and Toxicology |
É parte de: | Volume 62, Número 1, Pags. 78-84 |
Abstract: | Formation water (produce water or oil field brine) from oil and gas production usually has high concentrations of soluble salts and metals. The objective of this study was to examine the effect of formation water from Urucu Reserve, Amazon, on whole-body uptake and internal distribution of newly accumulated Na+ in juvenile tamoatá, Hoplosternum litoralle. Groups of fish were submitted to nine treatments for 3 h in 400-ml chambers: control (well water), 5% formation water, and well water with respective concentrations of 5% formation water of Ca2+, Fe, Mn, Ba 2+, Fe + Ca2+, Mn + Ca2+, and Ba + Ca 2+ added. Specimens of tamoatá exposed to 5% formation water presented a very high Na+ influx, probably due to the high Na + levels in this water. Waterborne Fe and Mn stimulated Na + influx, but Fe increased Na+ efflux, causing Na + loss. Waterborne Mn, on the other hand, decreased Na+ efflux, reducing Na+ loss by this species. Waterborne Ca2+ also affected Na+ influx but had no significant effect on net Na+ fluxes. These results demonstrated that spilling of formation water in ion-poor Amazon rivers would dramatically disrupt osmoregulatory balance of tamoatá and probably other Amazon fish species, impairing their survival and reduce biodiversity. © 2011 Springer Science+Business Media, LLC. |
DOI: | 10.1007/s00244-011-9673-z |
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