Quantification of skeletal density in corals using gamma densitometry: a pilot project

使用伽马密度测定法量化珊瑚骨骼密度：试点项目

• 批准号: 250720106
• 负责人: Privatdozent Dr. Michael Deveaux
• 金额: --
• 依托单位: Institut für Kernphysik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2017-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/250720106?language=en
• 关键词: Quantification; skeletal; density; corals; using

This pilot project has two objectives including (1) the technical development of an advanced gamma densitometry set-up for the quantification of density variation in scleractinian corals, and (2) first analyses of coral core slabs from selected taxa and a variety of environments in order to evaluate the influence of environmental parameters (temperature, salinity, precipitation, turbidity) and reproduction on coral skeleton development (extension, density, calcification). Coral sample material from several genera (with a focus on Montastraea, Porites) are available and may be used in this project. Aquired data on density variation in combination with extension and calcification rates will be compared to existing environmental proxy data and instrumental climate data. In the light of global change, temperature rise, and ocean acidification, long-term data on density in skeletons and shells of marine invertebrates such as corals will be highly significant for both pure scientific and socio-economic reasons. The densitometry set-up shall be used in future, more comprehensive sclerochronology projects.

该试点项目有两个目标，包括（1）技术开发先进的伽马密度测定装置，用于量化石珊瑚的密度变化，以及（2）首先分析选定类群和各种环境的珊瑚芯板，以评估环境参数（温度、盐度、降水、浊度）和繁殖对珊瑚骨架发育（延伸、密度、钙化）的影响。来自多个属（主要是 Montastraea、Porites）的珊瑚样本材料均可在本项目中使用。获得的密度变化数据以及延伸率和钙化率将与现有的环境代理数据和仪器气候数据进行比较。鉴于全球变化、气温上升和海洋酸化，关于珊瑚等海洋无脊椎动物骨骼和贝壳密度的长期数据对于纯粹的科学和社会经济原因都将具有非常重要的意义。密度测定装置将用于未来更全面的硬化年代学项目。