Biochemical Responses of the Bivalve Mollusk Unio tumidus Inhabiting a Small Power Plant Reservoir on the Dniester River Basin, Ukraine.
Bull Environ Contam Toxicol
; 105(1): 67-75, 2020 Jul.
Article
em En
| MEDLINE
| ID: mdl-32409854
ABSTRACT
Hydropower plants (HPPs) can affect the hydrological regime. However, biochemical responses of aquatic animals for the evaluation of this disturbing are not applied yet. The specimens of Unio tumidus were sampled in a reservoir (R) of a small HPP as well as downstream from the dam (DS). Biochemical indexes in the digestive gland and alkali labile phosphates (ALP) in the gonads were examined. The R-mollusks showed low cholinesterase, catalase and caspase-3 activities, and metallothionein concentration, but elevated levels of zinc and copper, oxidized glutathione and protein carbonyls. Concentrations of lactate, pyruvate and ALP, activity of superoxide dismutase and glutathione S-transferase, and lipid peroxidation level were similar in both groups. Integrated biomarker response (IBR/n) index (n = 13) was 2.17 and 0.29 in the R- and DS-groups correspondingly. We suggest that using integrative biological response based on the biochemical markers of bivalve mollusks can be a valid early warning step in assessing 'environmental flow' impact.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Centrais Elétricas
/
Poluentes Químicos da Água
/
Monitoramento Ambiental
/
Unio
Limite:
Animals
País/Região como assunto:
Europa
Idioma:
En
Revista:
Bull Environ Contam Toxicol
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Ucrânia