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Comp Biochem Physiol C Toxicol Pharmacol. 2019 May;219:42-49. doi: 10.1016/j.cbpc.2019.01.007. Epub 2019 Feb 10.

Interference of heavy metals present in the water of the Lagoa Tramandaí/RS on the carbohydrate metabolism of the GURI Sea Catfish (G. genidens) and Bay whiff (C. spilopterus).

Author information

1
Unilasalle-Universidade Lassalle, Mestrado de Avaliação em Impactos Ambientais, Av. Victor Barreto, 2288, CEP 92010-000 Canoas, RS, Brazil. Electronic address: brunnapetersen@gmail.com.
2
Unilasalle-Universidade Lassalle, Bolsista Laboratório de Fisiologia Comparada, Av. Victor Barreto, 2288, CEP 92010-000 Canoas, RS, Brazil.
3
Unilasalle-Universidade Lassalle, Mestrado de Avaliação em Impactos Ambientais, Av. Victor Barreto, 2288, CEP 92010-000 Canoas, RS, Brazil.

Abstract

This study aims to evaluate the contamination of the water of Lagoa Tramandaí on Genidens genidens and Citharichthys spilopterus residents of Lagoa Tramandaí, a region susceptible to environmental damage due to the release of domestic sewage from the municipalities bathed by the lagoon. Thereby, the biota suffers the interference of heavy metals, affecting their behavior and the metabolism of these individuals. The hepatic and muscular glycogen, glucose and plasma lactate of these species were analyzed, as well as the presence of heavy metals in lagoon water. When the species were analyzed separately with their controls, both mobilized more glycogen than the control and presented increased glucose and lactate, which is characteristic of animals contaminated by heavy metals. When compared with each other, they showed differences regarding carbohydrate metabolism. It was observed that the Guri Sea Catfish suffers more influence of heavy metals than the Bay whiff. Thus, we can conclude that the water contaminated with heavy metals of this lagoon interferes in the carbohydrate metabolism of both species of fish.

KEYWORDS:

Bay whiff; Carbohydrate metabolism; Guri Sea Catfish; Lagoa Tramandaí; Metals

PMID:
30759364
DOI:
10.1016/j.cbpc.2019.01.007

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