| Texto completo | |
| Autor(es): |
da Costa, Juliana Rodrigues
;
Capparelli, Mariana V.
;
Padilha, Pedro Magalhaes
;
Borges, Emanuelle
;
Ramaglia, Andressa C.
;
dos Santos, Michelle Roberta
;
Augusto, Alessandra
Número total de Autores: 7
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Archives of Environmental Contamination and Toxicology; v. 87, n. 1, p. 11-pg., 2024-06-26. |
| Resumo | |
Environmental stressors in aquatic organisms can be assessed using a bioenergetic approach based on the evaluation of changes in their physiological parameters. We evaluated the chronic effects of cadmium (Cd2+) on the energy balance as well as the survival, growth, metabolism, nitrogen excretion, hepatosomatic index, oxidized energy substrate, and osmoregulation of the shrimp Penaeus vannamei with the hypothesis that the high energy demand related to the homeostatic regulation of Cd(2+ )could disrupt the energy balance and as a consequence, their physiological functions. The shrimp exposed to Cd2+ had higher mortality (30%), directed more energy into growth (33% of energy intake), ingested 10% more energy, and defecated less than control animals. Cd2+ exposure caused a tendency to decrease metabolism and ammonia excretion but did not alter the hepatosomatic index, type of energy substrate oxidized, and the hyperosmorregulatory pattern of the species. The Cd+2 exposure may have induced a trade-off response because there was a growth rate increase accompanied by increased mortality. (AU) | |
| Processo FAPESP: | 19/26801-6 - Aquicultura integrada no Horizon 2020: avaliação da capacidade de suporte e fisiologia de camarões, ostras e algas cultivados em um sistema multitrófico orgânico |
| Beneficiário: | Alessandra da Silva Augusto |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |