Resistance of Lophelia pertusa to coverage by sediment and petroleum drill cuttings

Elke Allers; Raeid M.M. Abed; Laura M. Wehrmann; Tao Wang; Ann I. Larsson; Autun Purser; Dirk de Beer

doi:10.1016/j.marpolbul.2013.07.016

Resistance of Lophelia pertusa to coverage by sediment and petroleum drill cuttings

Elke Allers^*, Raeid M.M. Abed, Laura M. Wehrmann, Tao Wang, Ann I. Larsson, Autun Purser, Dirk de Beer

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

In laboratory experiments, the cold-water coral Lophelia pertusa was exposed to settling particles. The effects of reef sediment, petroleum drill cuttings and a mix of both, on the development of anoxia at the coral surface were studied using O₂, pH and H₂S microsensors and by assessing coral polyp mortality. Due to the branching morphology of L. pertusa and the release of coral mucus, accumulation rates of settling material on coral branches were low. Microsensors detected H₂S production in only a few samples, and sulfate reduction rates of natural reef sediment slurries were low (<0.3nmolScm^-3d^-1). While the exposure to sediment clearly reduced the coral's accessibility to oxygen, L. pertusa tolerated both partial low-oxygen and anoxic conditions without any visible detrimental short-term effect, such as tissue damage or death. However, complete burial of coral branches for >24h in reef sediment resulted in suffocation.

Original language	English
Pages (from-to)	132-140
Number of pages	9
Journal	Marine Pollution Bulletin
Volume	74
Issue number	1
DOIs	https://doi.org/10.1016/j.marpolbul.2013.07.016
Publication status	Published - Sep 15 2013
Externally published	Yes

Keywords

Anoxia
Cold-water coral reef
Cold-water coral-derived mucus
Drill cuttings
Lophelia pertusa
Sedimentation

ASJC Scopus subject areas

Oceanography
Aquatic Science
Pollution

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10.1016/j.marpolbul.2013.07.016

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@article{81fb535f13bb45c09c39bee56ac1f549,

title = "Resistance of Lophelia pertusa to coverage by sediment and petroleum drill cuttings",

abstract = "In laboratory experiments, the cold-water coral Lophelia pertusa was exposed to settling particles. The effects of reef sediment, petroleum drill cuttings and a mix of both, on the development of anoxia at the coral surface were studied using O2, pH and H2S microsensors and by assessing coral polyp mortality. Due to the branching morphology of L. pertusa and the release of coral mucus, accumulation rates of settling material on coral branches were low. Microsensors detected H2S production in only a few samples, and sulfate reduction rates of natural reef sediment slurries were low (<0.3nmolScm-3d-1). While the exposure to sediment clearly reduced the coral's accessibility to oxygen, L. pertusa tolerated both partial low-oxygen and anoxic conditions without any visible detrimental short-term effect, such as tissue damage or death. However, complete burial of coral branches for >24h in reef sediment resulted in suffocation.",

keywords = "Anoxia, Cold-water coral reef, Cold-water coral-derived mucus, Drill cuttings, Lophelia pertusa, Sedimentation",

author = "Elke Allers and Abed, {Raeid M.M.} and Wehrmann, {Laura M.} and Tao Wang and Larsson, {Ann I.} and Autun Purser and {de Beer}, Dirk",

note = "Funding Information: Katharina Kohls and Miriam Weber are gratefully acknowledged by E.A. for sharing their microsensor knowledge. Tomas Lund{\"a}lv, Lisbeth Jonsson, Sandra I. Sch{\"o}ttner and Christian Wild were invaluable in the field and during experimental stages. Gabrielle Eickert and Ines Schroeder are acknowledged for providing excellent microsensors and support in handling them. For great assistance in laboratory analysis we thank Katsia Pabortsava. We also thank Timothy G. Ferdelman for helpful discussions on the radiotracer experiments. This paper is a CORAMM (Coral Risk Assessment, Monitoring and Modelling) group collaboration, funded by the Max Plank Society and Statoil. Funding Information: This work was funded by the Max Planck Society and Statoil and is a CORAMM (Coral Risk Assessment, Monitoring and Modelling) group collaboration. The authors declare independence in experimental design and execution, as well as in data evaluation and interpretation and manuscript preparation and submission. ",

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doi = "10.1016/j.marpolbul.2013.07.016",

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T1 - Resistance of Lophelia pertusa to coverage by sediment and petroleum drill cuttings

AU - Allers, Elke

AU - Abed, Raeid M.M.

AU - Wehrmann, Laura M.

AU - Wang, Tao

AU - Larsson, Ann I.

AU - Purser, Autun

AU - de Beer, Dirk

N1 - Funding Information: Katharina Kohls and Miriam Weber are gratefully acknowledged by E.A. for sharing their microsensor knowledge. Tomas Lundälv, Lisbeth Jonsson, Sandra I. Schöttner and Christian Wild were invaluable in the field and during experimental stages. Gabrielle Eickert and Ines Schroeder are acknowledged for providing excellent microsensors and support in handling them. For great assistance in laboratory analysis we thank Katsia Pabortsava. We also thank Timothy G. Ferdelman for helpful discussions on the radiotracer experiments. This paper is a CORAMM (Coral Risk Assessment, Monitoring and Modelling) group collaboration, funded by the Max Plank Society and Statoil. Funding Information: This work was funded by the Max Planck Society and Statoil and is a CORAMM (Coral Risk Assessment, Monitoring and Modelling) group collaboration. The authors declare independence in experimental design and execution, as well as in data evaluation and interpretation and manuscript preparation and submission.

PY - 2013/9/15

Y1 - 2013/9/15

N2 - In laboratory experiments, the cold-water coral Lophelia pertusa was exposed to settling particles. The effects of reef sediment, petroleum drill cuttings and a mix of both, on the development of anoxia at the coral surface were studied using O2, pH and H2S microsensors and by assessing coral polyp mortality. Due to the branching morphology of L. pertusa and the release of coral mucus, accumulation rates of settling material on coral branches were low. Microsensors detected H2S production in only a few samples, and sulfate reduction rates of natural reef sediment slurries were low (<0.3nmolScm-3d-1). While the exposure to sediment clearly reduced the coral's accessibility to oxygen, L. pertusa tolerated both partial low-oxygen and anoxic conditions without any visible detrimental short-term effect, such as tissue damage or death. However, complete burial of coral branches for >24h in reef sediment resulted in suffocation.

AB - In laboratory experiments, the cold-water coral Lophelia pertusa was exposed to settling particles. The effects of reef sediment, petroleum drill cuttings and a mix of both, on the development of anoxia at the coral surface were studied using O2, pH and H2S microsensors and by assessing coral polyp mortality. Due to the branching morphology of L. pertusa and the release of coral mucus, accumulation rates of settling material on coral branches were low. Microsensors detected H2S production in only a few samples, and sulfate reduction rates of natural reef sediment slurries were low (<0.3nmolScm-3d-1). While the exposure to sediment clearly reduced the coral's accessibility to oxygen, L. pertusa tolerated both partial low-oxygen and anoxic conditions without any visible detrimental short-term effect, such as tissue damage or death. However, complete burial of coral branches for >24h in reef sediment resulted in suffocation.

KW - Anoxia

KW - Cold-water coral reef

KW - Cold-water coral-derived mucus

KW - Drill cuttings

KW - Lophelia pertusa

KW - Sedimentation

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JF - Marine Pollution Bulletin

SN - 0025-326X

IS - 1

ER -

Resistance of Lophelia pertusa to coverage by sediment and petroleum drill cuttings

Abstract

Keywords

ASJC Scopus subject areas

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