Acute exposure to the water-soluble fraction of gasoline (WSFG) affects oxygen consumption, nitrogenous-waste and Mg excretion, and activates anaerobic metabolism in the goldfish Carassius auratus

Contamination of aquatic environments by petroleum and its products (e.g. gasoline) is a hazard for aquatic organisms as a result of the potential toxicity of monocyclic aromatic hydrocarbons (BTEX) and polycyclic aromatic hydrocarbons (PAH). Our goal was to evaluate the acute effects of the water-s...

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Published in:Comparative biochemistry and physiology. Toxicology & pharmacology 2019-12, Vol.226, p.108590, Article 108590
Main Authors: G., Dal Pont, Souza-Bastos, Luciana Rodrigues, Giacomin, Marina, Dolatto, Rafael Garrett, Baika, Loana Mara, Grassi, Marco Tadeu, Ostrensky, Antonio, Wood, Chris M.
Format: Article
Language:English
Subjects:
Animals
BTEX
Environmental pollution
Gasoline - toxicity
Goldfish - metabolism
Ionic flux rates
Lactate
Magnesium - metabolism
Mg2+ excretion
Nitrogen - metabolism
Oxygen - metabolism
Oxygen Consumption
Oxygen uptake
PAH
Polycyclic Aromatic Hydrocarbons - toxicity
Urea-N
Water - analysis
Water Pollutants, Chemical - toxicity
Water Pollution, Chemical
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Summary:Contamination of aquatic environments by petroleum and its products (e.g. gasoline) is a hazard for aquatic organisms as a result of the potential toxicity of monocyclic aromatic hydrocarbons (BTEX) and polycyclic aromatic hydrocarbons (PAH). Our goal was to evaluate the acute effects of the water-soluble fraction of gasoline (WSFG) on nitrogen excretion, osmoregulation, and metabolism of goldfish Carassius auratus. We first chemically characterized the WSFG and then tested its effects on these physiological aspects of C. auratus, in several different exposure scenarios (0, 0.25, 5, 10 and 25% of WSFG). The WSFG contained high concentrations BTEX (toluene 70% and benzene 17%) relative to PAH (
ISSN:1532-0456
1878-1659
DOI:10.1016/j.cbpc.2019.108590