INEDES   24797
INSTITUTO DE ECOLOGIA Y DESARROLLO SUSTENTABLE
Unidad Ejecutora - UE
artículos
Título:
Assessment of physiological effects of sublethal cadmium on Cyprinus carpio
Autor/es:
BETTINA EISSA; FERRARI LUCRECIA; ALFREDO SALIBIAN; NATALIA OSSANA
Revista:
International Journal of Environment and Health
Editorial:
Indersciences Publishers
Referencias:
Año: 2017 vol. 8 p. 139 - 149
ISSN:
1743-4955
Resumen:
The effects of sublethal and short-term exposure to Cd were assessed with the purpose of studying the energy metabolism parameters in young Cyprinus carpio under laboratory conditions. The fish were exposed to Cd solutions (0.20 mg Cd. L?1) over a two-week term. The assayed concentration was environmentally realistic since it was frequently found in most highly polluted peri-urban water bodies in Argentina. No mortality was recorded among the animals during the experiments. The relationships between assimilation efficiency (U), oxygen consumption as a measure of specific metabolic rate (SMR) and ammonium excretion (AE) were determined. After exposure to Cd, a significant correlation was found between SMR and AE. It was concluded that under the assayed conditions the metal caused alterations in energy-related homeostasis of fish. Most of the responses may be interpreted as indicative of adaptations to compensate for increased energy requirements due to the physiological impairments caused by Cd.