Induction of Fish Biomarkers by Synthetic-Based Drilling Muds

Gagnon, Marthe Monique; Bakhtyar, Sajida

doi:10.1371/journal.pone.0069489

Cited by 7 publications

(6 citation statements)

References 15 publications

(12 reference statements)

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“…NABFs are divided further into OBFs, enhanced mineral oil-based fluids (EMOBFs), and SBFs (Ogeleka &Tudararo-Aherobo, 2011). Within SBFs are ester-based fluids (EBFs), isomerized olefin-based fluids (IOBFs), and linear alfa olefinbased fluids (LAOBFs) (Ogeleka &Tudararo-Aherobo, 2011;Gagnon & Bakhtyar, 2013). WBFs were the most frequently tested muds in the present review, appearing in 25 of the studied articles (Fig.…”

Section: Types Of Drilling Fluidsmentioning

confidence: 93%

“…Therefore, no data is available to indicate the toxic effects of WBF and OBF on fish. Gagnon and Bakhtyar (2013) investigated the chronic effects of SBF and its components in juvenile pink snappers (Pagrus auratus) after long-term exposure. The authors evaluated ethoxyresorufin-O-deethylase (EROD) activity, biliary metabolites, DNA damage, stress proteins, and other physiological conditions, which allowed them to conclude that although SBF may be non-toxic in the short term, it does have an effect on the health of juvenile fish in the long term.…”

Section: Chronic Effectsmentioning

confidence: 99%

“…SBFs were recommended initially as containing low-toxicity components for the marine biota, based on results of acute tests (Holdway, 2002). Nonetheless, more recently, chronic assays have demonstrated that SBFs may have chronic effects on aquatic organisms at long-term exposure (Gagnon and Bakhtyar, 2013), which may be related to their low biodegradability. New synthetic component shave been developed to improve the performance of OBFs, giving them a biodegradability similar to that of WBFs (Sil et al, 2012) to minimize their impact on the environment.…”

Section: Final Remarksmentioning

confidence: 99%

See 2 more Smart Citations

Toxicity of drilling fluids in aquatic organisms: a review

Aslan¹,

Weber²,

Iannacone³

et al. 2019

Ecotoxicol. Environ. Contam.

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Offshore oil-well drilling has been a subject of great interest to environmental regulatory agencies worldwide. The drilling fluids used in this process involve a complex mixture of chemicals and are largely discharged into the ocean. Acute and chronic toxicity tests have been done to better understand the effects of different types of drilling fluids on aquatic organisms. The aim of this article was to analyze all the studies related to the toxicity of drilling fluids published during the period of 2000 to 2017 by conducting a thorough review through the Scopus and Science Direct databases. Out of 154 articles, only 25 showed relevant information about the toxicity of drilling fluids. Acute toxicity tests were the predominant tests employed, appearing in 56% of the articles. Invertebrates were the most evaluated taxa, used in 64% of cases and represented mainly by Crustacea (32%), Mollusca (16%), and other invertebrates. Vertebrates were represented only by fish, constituting 32% of the cases. Water-based drilling fluids (WBFs) (32%) were the most frequently tested, followed by synthetic-based fluids or muds (SBFs) (24%) and oil-based fluids (OBFs) (16%). Individual components were tested in 12% of the cases, while 16% of studies included more than one type of drilling fluid. After analyzing the toxicity of drilling fluids and the sensitivity of aquatic organisms presented in 25 articles published in scientific journals, we concluded that WBFs-showing, in general, lower values of median lethal concentrations than do natural oil-and SBFs-are the most toxic drilling fluids to invertebrates in the short term. The gaps of information found in this review indicate that future studies need to address the acute and chronic effects of WBFs in both juvenile and adult fish and in other vertebrates; they also need to address the chronic effects of nonaqueous-based fluids on adult invertebrates. As crustaceans are more sensitive to drilling fluids than are mollusks, it is also recommended that they be used in future studies.

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Section: Types Of Drilling Fluidsmentioning

confidence: 93%

Section: Chronic Effectsmentioning

confidence: 99%

Section: Final Remarksmentioning

confidence: 99%

See 1 more Smart Citation

Toxicity of drilling fluids in aquatic organisms: a review

Aslan¹,

Weber²,

Iannacone³

et al. 2019

Ecotoxicol. Environ. Contam.

View full text Add to dashboard Cite

show abstract

“…The chemical composition of drilling muds is diverse, and has changed from the more toxic oil-based muds (currently restricted in many jurisdictions) to more modern synthetic and water-based fluids. The types of fluids most commonly used currently are generally regarded to be less toxic than oil-based fluids, but they are not without adverse biological effects (Daan and Mulder, 1996;Breuer et al, 2004;Bakhtyar and Gagnon, 2012;Gagnon and Bakhtyar, 2013;Edge et al, 2016). Produced water is contaminated water associated with oil and gas extraction process, with an estimated global production ratio of 3:1 water:oil over the lifetime of a well (Khatib and Verbeek, 2002;Neff, 2002;Fakhru'l-Razi et al, 2009).…”

Section: Effects Of Routine Activitiesmentioning

confidence: 99%

Environmental Impacts of the Deep-Water Oil and Gas Industry: A Review to Guide Management Strategies

Cordes

Jones

Schlacher

et al. 2016

Front. Environ. Sci.

281

170

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“…Furthermore, these tools can demonstrate the effects of pollutants and identify biological changes caused by toxic xenobiotics (Jesus and Carvalho 2008). Certain biomarkers of exposure, such as histopathological changes and indicators of genotoxicity, are crucial in identifying the impact of xenobiotics on aquatic organisms (Gagnon and Bakhtyar 2013;Sousa et al 2013). Fig.…”

Section: Introductionmentioning

confidence: 99%

Genotoxic and hematological parameters in Colossoma macropomum (Pisces, Serrasalmidae) as biomarkers for environmental impact assessment in a protected area in northeastern Brazil

Neta

Sousa

Sobrinho

et al. 2015

Environ Sci Pollut Res

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Genotoxic and hematological parameters in tambaqui (Colossoma macropomum), a native freshwater fish, were used as biomarkers to assess exposure to environmental stressors within the Maracanã Protected Area of Maranhão State, Brazil. Fish were sampled at two sites-Serena Lagoon (control) and Ambude River-on four occasions (dry and rainy season), and biometric data (length and weight) recorded and blood collected from all fish for analysis. Erythrocyte indices-mean corpuscular volume, mean corpuscular hemoglobin, and mean corpuscular hemoglobin concentration-were calculated. Blood samples were stained with Giemsa and acridine orange, and microscopically examined for micronuclei and morphological nuclear abnormalities. Micronuclei were observed in fish from both sites, although the frequency was significantly higher in fish from the Ambude River and morphological nuclear abnormalities were only observed in fish from the Ambude River. More morphological nuclear abnormalities and a larger number of micronuclei were observed in erythrocytes stained with acridine orange compared with those stained with Giemsa. On average, erythrocyte indices were lower in fish from the Ambude River than from the Serena Lagoon. The results confirm that genotoxic and hematological parameters in C. macropomum can be used as indicators of environmental health and could be valuable tools for monitoring environmental conditions within protected areas.

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Induction of Fish Biomarkers by Synthetic-Based Drilling Muds

Cited by 7 publications

References 15 publications

Toxicity of drilling fluids in aquatic organisms: a review

Toxicity of drilling fluids in aquatic organisms: a review

Environmental Impacts of the Deep-Water Oil and Gas Industry: A Review to Guide Management Strategies

Genotoxic and hematological parameters in Colossoma macropomum (Pisces, Serrasalmidae) as biomarkers for environmental impact assessment in a protected area in northeastern Brazil

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