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Sedimentation on the cold-water coral Lophelia pertusa: cleaning efficiency from natural sediments and drill cuttings.
Mar Pollut Bull. 2011 Jun; 62(6):1159-68.MP

Abstract

Anthropogenic threats to cold-water coral reefs are trawling and hydrocarbon drilling, with both activities causing increased levels of suspended particles. The efficiency of Lophelia pertusa in rejecting local sediments and drill cuttings from the coral surface was evaluated and found not to differ between sediment types. Further results showed that the coral efficiently removed deposited material even after repeated exposures, indicating an efficient cleaning mechanism. In an experiment focusing on burial, fine-fraction drill cuttings were deposited on corals over time. Drill cutting covered coral area increased with repeated depositions, with accumulation mainly occurring on and adjacent to regions of the coral skeleton lacking tissue cover. Tissue was smothered and polyp mortality occurred where polyps became wholly covered by material. Burial of coral by drill cuttings to the current threshold level used in environmental risk assessment models by the offshore industry (6.3mm) may result in damage to L. pertusa colonies.

Authors+Show Affiliations

Department of Marine Ecology-Tjärnö, University of Gothenburg, 45296 Strömstad, Sweden. Ann.Larsson@marecol.gu.seNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

21529851

Citation

Larsson, Ann I., and Autun Purser. "Sedimentation On the Cold-water Coral Lophelia Pertusa: Cleaning Efficiency From Natural Sediments and Drill Cuttings." Marine Pollution Bulletin, vol. 62, no. 6, 2011, pp. 1159-68.
Larsson AI, Purser A. Sedimentation on the cold-water coral Lophelia pertusa: cleaning efficiency from natural sediments and drill cuttings. Mar Pollut Bull. 2011;62(6):1159-68.
Larsson, A. I., & Purser, A. (2011). Sedimentation on the cold-water coral Lophelia pertusa: cleaning efficiency from natural sediments and drill cuttings. Marine Pollution Bulletin, 62(6), 1159-68. https://doi.org/10.1016/j.marpolbul.2011.03.041
Larsson AI, Purser A. Sedimentation On the Cold-water Coral Lophelia Pertusa: Cleaning Efficiency From Natural Sediments and Drill Cuttings. Mar Pollut Bull. 2011;62(6):1159-68. PubMed PMID: 21529851.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Sedimentation on the cold-water coral Lophelia pertusa: cleaning efficiency from natural sediments and drill cuttings. AU - Larsson,Ann I, AU - Purser,Autun, Y1 - 2011/05/06/ PY - 2010/09/17/received PY - 2011/03/23/revised PY - 2011/03/24/accepted PY - 2011/5/3/entrez PY - 2011/5/3/pubmed PY - 2011/10/1/medline SP - 1159 EP - 68 JF - Marine pollution bulletin JO - Mar. Pollut. Bull. VL - 62 IS - 6 N2 - Anthropogenic threats to cold-water coral reefs are trawling and hydrocarbon drilling, with both activities causing increased levels of suspended particles. The efficiency of Lophelia pertusa in rejecting local sediments and drill cuttings from the coral surface was evaluated and found not to differ between sediment types. Further results showed that the coral efficiently removed deposited material even after repeated exposures, indicating an efficient cleaning mechanism. In an experiment focusing on burial, fine-fraction drill cuttings were deposited on corals over time. Drill cutting covered coral area increased with repeated depositions, with accumulation mainly occurring on and adjacent to regions of the coral skeleton lacking tissue cover. Tissue was smothered and polyp mortality occurred where polyps became wholly covered by material. Burial of coral by drill cuttings to the current threshold level used in environmental risk assessment models by the offshore industry (6.3mm) may result in damage to L. pertusa colonies. SN - 1879-3363 UR - https://www.unboundmedicine.com/medline/citation/21529851/Sedimentation_on_the_cold_water_coral_Lophelia_pertusa:_cleaning_efficiency_from_natural_sediments_and_drill_cuttings_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0025-326X(11)00184-6 DB - PRIME DP - Unbound Medicine ER -