The occurrence of the cold-water coral Lophelia pertusa (Scleractinia) on oil and gas platforms in the North Sea:: Colony growth, recruitment and environmental controls on distribution
The occurrence of the cold-water coral Lophelia pertusa (Scleractinia) on oil and gas platforms in the North Sea:: Colony growth, recruitment and environmental controls on distribution
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DOI：
10.1016/j.marpolbul.2005.10.002
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发表时间：
2006-05-01
影响因子：
5.8
通讯作者：
Roberts, J. Murray
中科院分区：
文献类型：
--
作者：
Gass, Susan E.;Roberts, J. Murray
这项研究报告了一个新成立的亚种群Lophelia pertusa，占主导地位的珊瑚礁框架形成的珊瑚物种在东北大西洋，石油和天然气平台在北方北海。L.在使用现有石油和天然气工业目视检查检查的14个平台中，有13个平台被确定为百日咳。更详细地检查了两个平台，以检查深度和菌落大小分布。我们记录了947个殖民地发生在59和132之间的深度，正好与寒冷的大西洋水的深度低于夏季温跃层在北方北海。我们认为这些菌落为L.最初从东北大西洋种群招募人员，现在自行招募到平台上。大小级分布显示了一个连续的大小级范围内，但很少有边远的大殖民地。最大的殖民地和其他种群之间的中断被认为是殖民地开始自我招募到平台的时间点，导致更大的殖民成功。我们提出了第一个记录的原位菌落生长率估计（26 +/-5毫米年（-1））的L。基于来自Tern Alpha平台的15个菌落，以及从平台安装的那一年开始的年度招募事件的证据，对百日咳杆菌进行了鉴定。在石楠平台上观察到钻井泥浆和钻屑污染的证据，但似乎仅限于靠近钻井排放点的区域，在这些区域，菌落经历部分和整个菌落死亡。(c)2005爱思唯尔有限公司保留所有权利。
This study reports a newly established sub-population of Lophelia pertusa, the dominant reef-framework forming coral species in the north-east Atlantic, on oil and gas platforms in the northern North Sea. L. pertusa was positively identified on 13 of 14 platforms examined using existing oil and gas industry visual inspections. Two platforms were inspected in more detail to examine depth and colony size distributions. We recorded 947 colonies occurring between 59 and 132 in depth that coincides with cold Atlantic water at depths below the summer thermocline in the northern North Sea. We suggest that these colonies provide evidence for a planktonic larval stage of L. pertusa with recruits initially originating from populations in the north-east Atlantic and now self recruiting to the platforms. Size class distribution showed a continuous range of size classes, but with few outlying large colonies. The break between the largest colonies and the rest of the population is considered as the point when colonies began self recruiting to the platforms, resulting in greater colonization success. We present the first documented in situ colony growth rate estimate (26 +/- 5 mm yr(-1)) for L. pertusa based on 15 colonies from the Tern Alpha platform with evidence for yearly recruitment events starting the year the platform was installed. Evidence of contamination from drill muds and cuttings was observed on the Heather platform but appeared limited to regions close to drilling discharge points, where colonies experience partial as well as whole colony mortality. (c) 2005 Elsevier Ltd. All rights reserved.