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Accumulation and toxicity of monoaromatic petroleum hydrocarbons in early life stages of cod and haddock
- Source :
- Environmental Pollution
- Publication Year :
- 2019
- Publisher :
- Elsevier, 2019.
-
Abstract
- A multitude of recent studies have documented the detrimental effects of crude oil exposure on early life stages of fish, including larvae and embryos. While polycyclic aromatic hydrocarbons (PAHs), particularly alkyl PAHs, are often considered the main cause of observed toxic effects, other crude oil derived organic compounds are usually overlooked. In the current study, comprehensive two-dimensional gas chromatography coupled to mass spectrometry was applied to investigate the body burden of a wide range of petrogenic compounds in Atlantic haddock (Melanogrammus aeglefinus) and cod (Gadus morhua) embryos that had been exposed to sublethal doses of dispersed crude oil. Several groups of alkylated monoaromatic compounds (e.g. alkyl tetralins, indanes and alkyl benzenes), as well as highly alkylated PAHs, were found to accumulate in the fish embryos upon crude oil exposure. To investigate the toxicity of the monoaromatic compounds, two models (1-isopropyl-4-methyltetralin and 1-isopropyl-4-methylindane) were synthesized and shown to bioaccumulate and cause delayed hatching in developing embryos. Minor developmental effects, including craniofacial and jaw deformations and pericardial edemas, were also observed at the highest studied concentrations of the alkylindane.
- Subjects :
- 010504 meteorology & atmospheric sciences
Health, Toxicology and Mutagenesis
010501 environmental sciences
Toxicology
01 natural sciences
Dispersed crude oil
chemistry.chemical_compound
Animals
Gadus
Petroleum Pollution
Polycyclic Aromatic Hydrocarbons
Alkyl
0105 earth and related environmental sciences
chemistry.chemical_classification
biology
Fishes
Monoaromatic compounds
General Medicine
Haddock
biology.organism_classification
Pollution
Hydrocarbons
Gadiformes
Petroleum
Gadus morhua
Seafood
chemistry
Larva
Environmental chemistry
Bioaccumulation
Fish early life stages
Atlantic cod
Toxicity
Gas chromatography
Atlantic haddock
Water Pollutants, Chemical
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Environmental Pollution
- Accession number :
- edsair.doi.dedup.....d2ea5009e162ba680622a7af0226ac60