Chemical and Biological Variability on the Upper Water Column

对光合色素的研究旨在了解控制上层水柱中生物和化学变异性的过程。将继续对海洋中光合色素的分布、转化和降解进行观测。研究强调：1)色素作为化学分类标志，2)锋区的物理-化学-生物相互作用，3)海洋浮游植物的光适应策略，4)浮游动物的取食。高效液相色谱(HPLC)技术已被用来定量卟啉和类胡萝卜素的分布、浮游动物的摄食选择性和光合色素合成的差异速率。这些研究将继续与世界卫生组织、迈阿密大学、南加州大学和苏联的实验室的研究人员合作。这项研究的结果将直接应用于美国JGOFS的问题。

This study of photosynthetic pigments is directed at understanding the processes that control biological and chemical variability in the upper water column. Observations will continue to be made on the distribution, transformation and degradation of photosynthetic pigments in the oceans. Research has emphasized: 1) pigments as chemotaxonomic markers, 2) physical-chemical-biological interactions in frontal areas, 3) photo-adaptation strategies of marine phytoplankton, and 4) grazing by zooplankton. High performance liquid chromatographic (HPLC) techniques have been used to quantify porphyrin and carotenoid distributions, zooplankton feeding selectivity, and differential rates of photosynthetic pigment synthesis. These studies will continue in cooperation with investigators at WHOI, U Miami, UCSB and at laboratories in the Soviet Union. The results of this research will have direct applications to issues in the U. S. JGOFS.