Environmental impacts of the deep-water oil and gas industry: a review to guide management strategies

Cordes, Erik E., Jones, Daniel O. B., Schlacher, Thomas A., Amon, Diva J., Bernardino, Angelo F., Brooke, Sandra, Carney, Robert, DeLeo, Danielle M., Dunlop, Katherine M., Escobar-Briones, Elva, Gates, Andrew R., Génio, Luciana, Gobin, Judith, Henry, Lea-Anne, Herrera, Santiago, Hoyt, Sarah, Joye, Mandy, Kark, Salit, Mestre, Nelia C., Metaxas, Anna, Pfeifer, Simone, Sink, Kerry, Kvassnes Sweetman, Andrew and Witte, Ursula (2016) Environmental impacts of the deep-water oil and gas industry: a review to guide management strategies. Frontiers in Environmental Science, 4 58: 1-26. doi:10.3389/fenvs.2016.00058

Author Cordes, Erik E.
Jones, Daniel O. B.
Schlacher, Thomas A.
Amon, Diva J.
Bernardino, Angelo F.
Brooke, Sandra
Carney, Robert
DeLeo, Danielle M.
Dunlop, Katherine M.
Escobar-Briones, Elva
Gates, Andrew R.
Génio, Luciana
Gobin, Judith
Henry, Lea-Anne
Herrera, Santiago
Hoyt, Sarah
Joye, Mandy
Kark, Salit
Mestre, Nelia C.
Metaxas, Anna
Pfeifer, Simone
Sink, Kerry
Kvassnes Sweetman, Andrew
Witte, Ursula
Title Environmental impacts of the deep-water oil and gas industry: a review to guide management strategies
Journal name Frontiers in Environmental Science   Check publisher's open access policy
ISSN 2296-665X
Publication date 2016-09-16
Year available 2016
Sub-type Critical review of research, literature review, critical commentary
DOI 10.3389/fenvs.2016.00058
Open Access Status DOI
Volume 4
Issue 58
Start page 1
End page 26
Total pages 26
Place of publication Lausanne, Switzerland
Publisher Frontiers Research Foundation
Language eng
Abstract The industrialization of the deep sea is expanding worldwide. Increasing oil and gas exploration activities in the absence of sufficient baseline data in deep-sea ecosystems has made environmental management challenging. Here, we review the types of activities that are associated with global offshore oil and gas development in water depths over 200 m, the typical impacts of these activities, some of the more extreme impacts of accidental oil and gas releases, and the current state of management in the major regions of offshore industrial activity including 18 exclusive economic zones. Direct impacts of infrastructure installation, including sediment resuspension and burial by seafloor anchors and pipelines, are typically restricted to a radius of ~100 m on from the installation on the seafloor. Discharges of water-based and low-toxicity oil-based drilling muds and produced water can extend over 2 km, while the ecological impacts at the population and community levels on the seafloor are most commonly on the order of 200–300 m from their source. These impacts may persist in the deep sea for many years and likely longer for its more fragile ecosystems, such as cold-water corals. This synthesis of information provides the basis for a series of recommendations for the management of offshore oil and gas development. An effective management strategy, aimed at minimizing risk of significant environmental harm, will typically encompass regulations of the activity itself (e.g., discharge practices, materials used), combined with spatial (e.g., avoidance rules and marine protected areas), and temporal measures (e.g., restricted activities during peak reproductive periods). Spatial management measures that encompass representatives of all of the regional deep-sea community types is important in this context. Implementation of these management strategies should consider minimum buffer zones to displace industrial activity beyond the range of typical impacts: at least 2 km from any discharge points and surface infrastructure and 200 m from seafloor infrastructure with no expected discharges. Although managing natural resources is, arguably, more challenging in deep-water environments, inclusion of these proven conservation tools contributes to robust environmental management strategies for oil and gas extraction in the deep sea.
Keyword Offshore drilling
Deep sea
Environmental impacts
Benthic communities
Cold-water corals
Chemosynthetic ecosystems
Environmental policy
Marine spatial planning
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Critical review of research, literature review, critical commentary
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Created: Wed, 23 Aug 2017, 14:41:51 EST by Gail Walter on behalf of School of Biological Sciences