Spatial variation in porosity and skeletal element characteristics in apical tips of the branching coral Acropora pulchra (Brook 1891)

Spatial variation in porosity and skeletal element characteristics in apical tips of the branching coral Acropora pulchra (Brook 1891)
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分支珊瑚 Acropora pulchra 顶端孔隙度和骨骼元素特征的空间变化(Brook 1891)

DOI:
10.1007/s00338-010-0679-1
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发表时间:
2010
期刊:
影响因子:
3.5
通讯作者:
Roche R
Roche R
中科院分区:
生物学2区
文献类型:
--
作者:
Roche R

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利用显微CT扫描技术研究了美丽鹿角珊瑚(Acropora pulchra)沿着分支顶端孔隙度的细微变化。孔隙度的变化是骨骼元素逐渐增厚的结果远离顶端的分支,而不是骨骼元素的间距的变化。发现线性拟合描述了沿头端的距离沿着与孔隙率和骨骼厚度之间的关系。获得的线的斜率可能与分支延伸率有关,并允许从Acroporaspecimens获得回顾性数据。通过2D和3D成像检查的骨骼形态显示在轴向珊瑚壁中发生的厚度的渐进渐变和在初期分支形成的部位处的厚度变化。并举例说明了显微CT技术在博物馆和化石标本中的应用。
Micro-CT scanning techniques were used to investigate fine-scale variation in porosity along branch tips ofAcropora pulchra. Porosity variation is a result of progressive thickening of skeletal elements away from the apical tip of branches, rather than changes in the spacing of skeletal elements. A linear fit was found to describe the relationship between distance along the tip and both porosity and skeletal thickness. The slope of the line obtained may relate to branch extension rates and allow retrospective data to be obtained fromAcroporaspecimens. Skeletal morphology examined by 2D and 3D imaging shows a progressive gradation in thickness occurring in the axial corallite wall and thickness changes at a site of incipient branch formation. The application of the micro-CT technique to museum and fossil specimens is illustrated.
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影响因子: 4.7
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