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 (<0.3 nmol S cm(-3) d(-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 >24 h in reef sediment resulted in suffocation.
journal_name
Mar Pollut Bulljournal_title
Marine pollution bulletinauthors
Allers E,Abed RM,Wehrmann LM,Wang T,Larsson AI,Purser A,de Beer Ddoi
10.1016/j.marpolbul.2013.07.016subject
Has Abstractpub_date
2013-09-15 00:00:00pages
132-40issue
1eissn
0025-326Xissn
1879-3363pii
S0025-326X(13)00385-8journal_volume
74pub_type
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pub_type： 杂志文章
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