Growth and branching patterns of Lophelia pertusa (Scleractinia) from the North Sea
Growth and branching patterns of Lophelia pertusa (Scleractinia) from the North Sea
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DOI：
10.1017/s002531541000055x
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发表时间：
2011-06-01
影响因子：
1.2
通讯作者：
Roberts, J. M.
中科院分区：
文献类型：
--
作者：
Gass, S. E.;Roberts, J. M.
Pophelia pertusa是一种世界性的冷水珊瑚，它为新的古气候指标提供了潜力。这项研究调查了它的骨骼生长模式，以帮助这种发育。对采自北海北部石油平台的Pertusa珊瑚的花萼直径、高度、膜宽和带状等特征进行了研究。子代息肉沿生长轴的平均距离(27.4+/-5 mm，SD)相当于估计的年生长率；因此，息肉一年发芽一次。大部分生长发生在第一年，当时形成了珊瑚特有的喇叭形状，而膜壁更一致地增厚。对两个息肉的进一步检查显示，沿着内膜的全长有一条黑色的生长带和钙化中心，这代表着早期的骨骼生长。在这些北海珊瑚中，邻近这一地区的骨骼样本沿着连续的息肉显示出作为年度年表的前景。
Lophelia pertusa, a cosmopolitan cold-water coral, offers potential for new palaeoclimate proxies. This study investigated its skeletal growth patterns to aid in this development. Corallite characteristics (calyx diameter, height, thecal width and banding) of L. pertusa sampled from oil platforms in the northern North Sea were examined. The mean distance between daughter polyps along a growth axis (27.4 +/- 5 mm, SD) was equivalent to the estimated annual growth rate; hence, the polyps bud once a year. The majority of growth occurred in the first year when the characteristic trumpet shape of a corallite was formed, while the thecal wall thickened more consistently. Further examination of two polyps showed a dark growth band and centres of calcification along the full length of the inner theca, which represents early skeletal growth. Skeletal sampling adjacent to this area along sequential polyps shows promise as an annual chronology in these North Sea corals.