DOI: 10.1016/j.marpolbul.2016.02.079
Scopus记录号: 2-s2.0-84990940825
论文题名: Benthos response following petroleum exploration in the southern Caspian Sea: Relating effects of nonaqueous drilling fluid, water depth, and dissolved oxygen
作者: Tait R.D. ; Maxon C.L. ; Parr T.D. ; Newton F.C. ; III
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2016
卷: 110, 期: 1 起始页码: 520
结束页码: 527
语种: 英语
英文关键词: Benthic macrofauna
; Caspian Sea
; Drill cuttings
; Hypoxia
; Linear alpha olefin (LAO)
; Nonaqueous drilling fluid (NADF)
Scopus关键词: oxygen
; sea water
; water pollutant
; Amphipoda
; analysis
; animal
; Azerbaijan
; chemistry
; drug effects
; environmental monitoring
; oil industry
; procedures
; sea
; season
; sediment
; toxicity
; water pollutant
; Amphipoda
; Animals
; Azerbaijan
; Environmental Monitoring
; Geologic Sediments
; Oceans and Seas
; Oil and Gas Industry
; Oxygen
; Seasons
; Seawater
; Water Pollutants, Chemical
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: The effects of linear alpha olefin (LAO) nonaqueous drilling fluid on benthic macrofauna were assessed over a six year period at a southern Caspian Sea petroleum exploration site. A wide-ranging, pre-drilling survey identified a relatively diverse shelf-depth macrofauna numerically dominated by amphipods, cumaceans, and gastropods that transitioned to a less diverse assemblage dominated by hypoxia-tolerant annelid worms and motile ostracods with increasing depth. After drilling, a similar transition in macrofauna assemblage was observed with increasing concentration of LAO proximate to the shelf-depth well site. Post-drilling results were consistent with a hypothesis of hypoxia from microbial degradation of LAO, supported by the presence of bacterial mats and lack of oxygen penetration in surface sediment. Chemical and biological recoveries at ≥ 200 m distance from the well site were evident 33 months after drilling ceased. Our findings show the importance of monitoring recovery over time and understanding macrofauna community structure prior to drilling. © 2016 The Authors Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/86821
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: Exxon Mobil Corporation, 22777 Springwoods Village Parkway, Spring, TX, United States; Maxon Consulting, 2546 San Clemente Terrace, San Diego, CA, United States; Terry Parr Environmental Consulting Services, 7924 Grape Street, La Mesa, CA, United States
Recommended Citation:
Tait R.D.,Maxon C.L.,Parr T.D.,et al. Benthos response following petroleum exploration in the southern Caspian Sea: Relating effects of nonaqueous drilling fluid, water depth, and dissolved oxygen[J]. Marine Pollution Bulletin,2016-01-01,110(1)