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 (-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 | |
| Publication status | Published - Sep 15 2013 |
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Keywords
- Anoxia
- Cold-water coral reef
- Cold-water coral-derived mucus
- Drill cuttings
- Lophelia pertusa
- Sedimentation
ASJC Scopus subject areas
- Aquatic Science
- Oceanography
- Pollution
Cite this
Resistance of Lophelia pertusa to coverage by sediment and petroleum drill cuttings. / Allers, Elke; Abed, Raeid M M; Wehrmann, Laura M.; Wang, Tao; Larsson, Ann I.; Purser, Autun; de Beer, Dirk.
In: Marine Pollution Bulletin, Vol. 74, No. 1, 15.09.2013, p. 132-140.Research output: Contribution to journal › Article
}
TY - JOUR
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
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 (-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 (-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
UR - http://www.scopus.com/inward/record.url?scp=84884143607&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84884143607&partnerID=8YFLogxK
U2 - 10.1016/j.marpolbul.2013.07.016
DO - 10.1016/j.marpolbul.2013.07.016
M3 - Article
VL - 74
SP - 132
EP - 140
JO - Marine Pollution Bulletin
JF - Marine Pollution Bulletin
SN - 0025-326X
IS - 1
ER -