Use este identificador para citar ou linkar para este item: https://repositorio.inpa.gov.br/handle/1/17506
Título: Biochemical and behavioral responses of the Amazonian fish Colossoma macropomum to crude oil: The effect of oil layer on water surface
Autor: Kochhann, Daiani
Jardim, Manoela Meyersieck
Valdez Domingos, Fab?ola Xochilt
Val, Adalberto Luis
Palavras-chave: Acetylcholinesterase
Alkaline Phosphatase
Crude Oil Water Insoluble Fraction
Crude Water Soluble Fraction
Inert Oil Water Insoluble Fraction
Inert Oil Water Soluble Fraction
Mineral Oil
Oil Layer
Petroleum
Water Surface
Unclassified Drug
Acetylcholinesterase
Petroleum
Water Pollutant
Behavioral Response
Bioaccumulation
Biochemistry
Biomarker
Crude Oil
Enzyme Activity
Fish
Oil Spills
Pollutant Transport
Pollution Effect
Pollution Exposure
River Pollution
Swimming Behavior
Toxicity
Aerobic Capacity
Alarm Substance Response
Behavior, Animals
Animals Cell
Animals Experiment
Animals Tissue
Colossoma Macropomum
Concentration (parameters)
Controlled Study
Environmental Exposure
Enzyme Activity
Fish
Food Intake
Gill
Histopathology
Hypertrophy
Hypertrophy Of Lamellar Epithelium
Juvenile Animals
Lamellar Fusion
Long Term Exposure
Nonhuman
Sublethal Exposure
Swimming
Velocity
Anatomy And Histology
Animals
Characiformes
Drug Effects
Metabolism
Pathology
Physiology
River
Toxicity
Water Pollutant
Amazonas
Manaus
Solimoes River
Urucu River
Colossoma Macropomum
Colossoma Marcopomum
Acetylcholinesterase
Animal
Characiformes
Gills
Petroleum
Rivers
Swimming
Water Pollutants, Chemical
Data do documento: 2015
Revista: Ecotoxicology and Environmental Safety
É parte de: Volume 111, Pags. 32-41
Abstract: The largest Brazilian terrestrial province of petroleum mining is located at the margins of Urucu River, Amazonas. Mined crude oil is transported along 400km across Solimões River to be refined in Manaus. Thus, the main goal of this study was to evaluate the effects of crude oil exposure on biochemical, physiological and behavioral parameters of juveniles of the Amazonian fish tambaqui (Colossoma macropomum). The toxicity of water-soluble and insoluble oil fractions and the influence of a layer formed by the oil on the water surface from low and high concentrations of crude oil were analyzed. The results showed a strong physical effect of oil at the water surface and a significant effect on fish behavior. Swimming time and response to alarm substance decreased when fish was exposed for just one day to water insoluble fraction, and remain lower after 30 days of exposure, compared to control. Chronic exposure to water insoluble fraction of the inert oil also affected these two parameters. Critical swimming velocity decreased in fish exposed to both crude and inert oil water insoluble fraction. These reductions are possibly related to a decrease in aerobic capacity. Only exposure to high concentrations of petroleum water-soluble fractions induced transient alterations of the analyzed parameters. The exposure of fish to low and high concentrations of water insoluble fraction of Urucu oil caused a reduction of responses to alarm substance, spontaneous swimming activity and swimming capacity (Ucrit), decreased activity of acetylcholinesterase, and increased activity of alkaline phosphatase. Severe hypertrophy of lamellar epithelium and extensive lamellar fusion of the gills were also observed. Overall, these results show significant behavioral and physiological changes caused by the oil layer on the water surface, which means that toxicity of petroleum produced by its chemical components is, in fact, in this fish species, enhanced by the presence of an oil phase as a physical barrier. •Effects of crude oil on the Amazonian fish tambaqui were analyzed.•Behavioral and physiological parameters were affected by the oil layer.•Oil layer at water surface causes stronger effects than dissolved PAHs.•Amazonian fish species that use air-water interface are vulnerable to oil layer during an oil spill. © 2014 Elsevier Inc.
DOI: 10.1016/j.ecoenv.2014.09.016
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