Cristin-resultat-ID: 1519512
Sist endret: 21. juni 2018 09:15
NVI-rapporteringsår: 2017
Resultat
Vitenskapelig artikkel
2018

Perturbation of seafloor bacterial community structure by drilling waste discharge

Bidragsytere:
  • Tan Thi Nguyen
  • Sabine K.J. Cochrane og
  • Bjarne Landfald

Tidsskrift

Marine Pollution Bulletin
ISSN 0025-326X
e-ISSN 1879-3363
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2018
Publisert online: 2017
Volum: 129
Hefte: 2
Sider: 615 - 622
Open Access

Importkilder

Scopus-ID: 2-s2.0-85033680610

Beskrivelse Beskrivelse

Tittel

Perturbation of seafloor bacterial community structure by drilling waste discharge

Sammendrag

Offshore drilling operations result in the generation of drill cuttings and localized smothering of the benthic habitats. This study explores bacterial community changes in the in the upper layers of the seafloor resulting from an exploratory drilling operation at 1400 m water depth on the Barents Sea continental slope. Significant restructurings of the sediment microbiota were restricted to the sampling sites notably affected by the drilling waste discharge, i.e. at 30 m and 50 m distances from the drilling location, and to the upper 2 cm of the seafloor. Three bacterial groups, the orders Clostridiales and Desulfuromonadales and the class Mollicutes, were almost exclusively confined to the upper two centimeters at 30 m distance, thereby corroborating an observed increase in anaerobicity inflicted by the drilling waste deposition. The potential of these phylogenetic groups as microbial bioindicators of the spatial extent and persistence of drilling waste discharge should be further explored.

Bidragsytere

Inaktiv cristin-person

Tan Thi Nguyen

  • Tilknyttet:
    Forfatter
    ved Norges fiskerihøgskole ved UiT Norges arktiske universitet

Sabine K.J. Cochrane

  • Tilknyttet:
    Forfatter
    ved Akvaplan Niva AS

Bjarne Landfald

  • Tilknyttet:
    Forfatter
    ved Norges fiskerihøgskole ved UiT Norges arktiske universitet
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