Phytoplankton patchiness: quantifying the biological contribution using Fast Repetition Rate Fluorometry
Phytoplankton patchiness: quantifying the biological contribution using Fast Repetition Rate Fluorometry
复制标题
浮游植物斑块：使用快速重复率荧光测定法量化生物贡献
DOI：
10.1093/plankt/19.9.1265
复制
发表时间：
1997
影响因子：
2.1
通讯作者：
R. Greene
中科院分区：
文献类型：
--
作者：
P. Strutton;James G. Mitchell;J. Parslow;R. Greene
在海洋环境中，物理过程和生物过程之间的耦合是重要的，因为浮游植物生长和湍流沼泽在相似的时间尺度上运行。自20世纪70年代以来，这两个参数对浮游植物斑块的相对贡献已经使用光谱分析等分析工具进行了研究。在这里，我们第一次将联合收割机光谱分析与快速重复率荧光法相结合，作为量化光合效率在导致海洋叶绿素分布的生物-物理相互作用中的重要性的方法。结果表明，光合效率与相应的叶绿素功率谱之和相关;叶绿素的总空间变异性的度量。此外，高光合速率与叶绿素和盐度的空间分布不同的区域相关，如通过其各自的功率谱的斜率所量化的。结果是特别明显的，在大的空间尺度上，代表了以前的理论工作，浮游植物的空间结构的实证验证。
The coupling between physical and biological processes is important in the marine environ- ment because phytoplankton growth and turbulent miring operate on similar time scales. Since the 1970s, the relative contribution of these two parameters to phytoplankton patchiness has been studied using analytical tools such as spectral analysis. Here, for the first time, we combine spectral analysis with Fast Repetition Rate Fluorometry as a method of quantifying the importance of photosynthetic efficiency in the biological-physical interactions that lead to oceanic chlorophyll distributions. The results indicate that photosynthetic efficiency is correlated with the sum of the corresponding chloro- phyll power spectrum; a measure of the total spatial variability of chlorophyll. In addition, high photo- synthetic rates are associated with regions where the spatial distributions of chlorophyll and salinity differ, as quantified by the slopes of their respective power spectra. The results are particularly evident at large spatial scales, representing an empirical verification of previous theoretical work regarding phytoplankton spatial structure.