Assessing the potential impact of water-based drill cuttings on deep-water calcareous red algae using species specific impact categories and measured oceanographic and discharge data

Nilssen, Ingunn; Santos, Francisco dos; Coutinho, Ricardo; Gomes, Natália; Cabral, Marcelo Montenegro; Eide, Ingvar; Figueiredo, Márcia Feijão de; Johnsen, Geir; Johnsen, Ståle

doi:10.1016/j.marenvres.2015.09.008

Cited by 10 publications

(12 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The concern related to the discharge of drill cuttings is related to the physical effect of burial and reduced light and gas exchange (Figueiredo et al ). Because of the prevailing currents from WHP B toward the calcareous algae bank (Nilssen, Santos et al ), 7 field campaigns during 2010 to 2012 were carried out to monitor if drill cuttings could be detected in the vicinity of the Peregrino calcareous algae community.…”

Section: Methodsmentioning

confidence: 99%

“…The first of the 7 campaigns was carried out before drilling and thus represents baseline (Table ). The prevailing current direction in the area is toward the southwest from WHP B toward traps 1 and 3 and the lander (Nilssen, Santos et al ). Trap 2 was located in an area not expected to be influenced by the discharges.…”

Section: Methodsmentioning

confidence: 99%

“…Because of the temporal 24‐h resolution of the discharge log, the model was run in daily sequences, enabling a daily overview of the accumulation of the deposition. More details on the numerical modeling is described in Nilssen, Santos et al () who modeled deposition from WHP B over a 2‐y period.…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Integrated environmental monitoring and multivariate data analysis-A case study

Eide

Westad

Nilssen

et al. 2016

Integr Environ Assess Manag

Self Cite

View full text Add to dashboard Cite

The present article describes integration of environmental monitoring and discharge data and interpretation using multivariate statistics, principal component analysis (PCA), and partial least squares (PLS) regression. The monitoring was carried out at the Peregrino oil field off the coast of Brazil. One sensor platform and 3 sediment traps were placed on the seabed. The sensors measured current speed and direction, turbidity, temperature, and conductivity. The sediment trap samples were used to determine suspended particulate matter that was characterized with respect to a number of chemical parameters (26 alkanes, 16 PAHs, N, C, calcium carbonate, and Ba). Data on discharges of drill cuttings and water-based drilling fluid were provided on a daily basis. The monitoring was carried out during 7 campaigns from June 2010 to October 2012, each lasting 2 to 3 months due to the capacity of the sediment traps. The data from the campaigns were preprocessed, combined, and interpreted using multivariate statistics. No systematic difference could be observed between campaigns or traps despite the fact that the first campaign was carried out before drilling, and 1 of 3 sediment traps was located in an area not expected to be influenced by the discharges. There was a strong covariation between suspended particulate matter and total N and organic C suggesting that the majority of the sediment samples had a natural and biogenic origin. Furthermore, the multivariate regression showed no correlation between discharges of drill cuttings and sediment trap or turbidity data taking current speed and direction into consideration. Because of this lack of correlation with discharges from the drilling location, a more detailed evaluation of chemical indicators providing information about origin was carried out in addition to numerical modeling of dispersion and deposition. The chemical indicators and the modeling of dispersion and deposition support the conclusions from the multivariate statistics. Integr Environ Assess Manag 2017;13:387-395. © 2016 SETAC.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Integrated environmental monitoring and multivariate data analysis-A case study

Eide

Westad

Nilssen

et al. 2016

Integr Environ Assess Manag

Self Cite

View full text Add to dashboard Cite

show abstract

“…The ecological effects of drill cuttings when disposed of on land or sea without prior treatment have been widely documented in the open access literature (Ellis et al, 2012;Zamora-Ledezma and García, 2013;Larsson et al, 2013;Durgut et al, 2015;Nilssen et al, 2015). In a recent review, Ellis et al (2012) revealed a loss of benthic biodiversity and suspension-feeding communities due to discharge of drilling waste from oil and gas platforms.…”

Section: Ecological Effects Of Drill Cuttingsmentioning

confidence: 99%

“…There have also been reported lower growth rates of cold-water coral Lophelia pertusa when exposed to water-based drill cuttings for 12 weeks (Larsson et al, 2013). Recently, while assessing the potential impact of water-based drill cuttings on two deepwater calcareous red algae, namely; Mesophyllum engelhartii and Lithothamnion sp., Nilssen et al (2015) observed an occasional risk for severe impact on the calcareous algae. Therefore, effective management of drill cuttings becomes a consequent necessity, not least because some drill-cuttings contaminants such as PAHs are non-threshold carcinogens known to possess some genotoxic potential (Contaminated Land: Applications in Real Environments (CL:AIRE), 2010).…”

Section: Ecological Effects Of Drill Cuttingsmentioning

confidence: 99%

Towards enhancing sustainable reuse of pre-treated drill cuttings for construction purposes by near-infrared analysis: A review

Okparanma¹,

Araka²,

Ayotamuno³

et al. 2018

J. Civ. Eng. Constr. Technol.

View full text Add to dashboard Cite

Sustainable reuse of pre-treated drill cuttings (a hazardous waste) as part substitute for fine aggregate in concrete for construction purposes is becoming increasingly attractive; however, issues remain. With recent studies focusing on the use of near-infrared spectroscopic technique for non-invasive determination of chloride concentration in concrete structures, this review examines the applicability of this new technique in the rapid determination of other equally important physicochemical characteristics of concrete produced with this hazardous waste. The nature, source, composition, ecological effects of, and management options for drill cuttings are reviewed. Furthermore, the principles of near-infrared diffuse reflectance spectroscopy are highlighted and lessons from its practical applications in soil science and petrochemical, environmental, and civil engineering are discussed. A framework for a rapid near-infrared analysis of concrete produced with pre-treated drill cuttings for enhanced sustainability as a construction material is also proposed.

show abstract

Bayesian analysis of biodiversity patterns via beam trawl versus video transect—a comparative case study of Svalbard rhodolith beds

Straube,

Neumann,

Wisshak

et al. 2024

Biodivers Conserv

View full text Add to dashboard Cite

Knowledge of spatial biodiversity patterns is important for ecosystem assessment. Rhodoliths, free-living calcareous algae, are biotic components that structure the sea floor through their complex calcareous skeletons and their tendency to accumulate in an area to form rhodolith beds. Thereby, rhodoliths are considered to act as ecosystem engineers promoting local biodiversity. In this study, the biodiversity of rhodolith beds in Mosselbukta, Svalbard, was investigated to analyse the proposed link between local biodiversity and the presence of rhodoliths by evaluating beam trawl and underwater video transect data. The comparative analysis of two sampling methods addressing the same research question allowed us to assess the suitability of these two methods. To test our hypothesis and the utility of the two methods, evaluations of the two data sets were carried out separately by using Bayesian statistics. The results confirm a positive relationship between the presence of rhodoliths and local biodiversity with a posterior probability of 70% for the video transects and 85% for the beam trawl data. The similarity of the results of the two methods suggests that both methods are well-suited for the analysis of local biodiversity patterns. The combination of the two methods, with their individual strengths and weaknesses, has provided stronger support for the results and a broader view on different components of the biodiversity in the Svalbard rhodolith beds.

show abstract

Assessing the potential impact of water-based drill cuttings on deep-water calcareous red algae using species specific impact categories and measured oceanographic and discharge data

Cited by 10 publications

References 36 publications

Integrated environmental monitoring and multivariate data analysis-A case study

Integrated environmental monitoring and multivariate data analysis-A case study

Towards enhancing sustainable reuse of pre-treated drill cuttings for construction purposes by near-infrared analysis: A review

Bayesian analysis of biodiversity patterns via beam trawl versus video transect—a comparative case study of Svalbard rhodolith beds

Contact Info

Product

Resources

About