Method Development for Unenclosed Mesoscale Iron Enrichment Experiments and Galapagos Plume Studies

一项关于加拉帕戈斯烟柱起源的研究正在进行中， 通过卫星海洋颜色图像记录了这一特征， 一股明显的高浮游植物色素流从 加拉帕戈斯群岛。 浮游植物增加的现象 来自加拉帕戈斯群岛的大量洋流 通过传统的船上研究观察到的。 高生产率 低生产力、高营养沃茨区 可能是由以下几个假设过程之一引起的：1. 从加拉帕戈斯平台引进“种子”种群 沃茨，然后产生观察到的水华。 2.破坏 浮游动物占主导的环境平衡， 当平台上的水流导致浮游动物 失去控制，3。将稀有元素Fe引入到 富含营养的沃茨经过加拉帕戈斯群岛附近时， 允许先前抑制的起霜条件发展。 营养素、铁和其他微量元素的测量， 生产力、POC、DOC、PON、DON、浮游植物和浮游动物 羽流周围和内部的生长速率和相关参数是 计划测试这些假设

A study of the origin of the Galapagos plume is underway; the feature is documented through satellite ocean color images showing a marked plume of high phytoplankton pigments streaming off the Galapagos Islands. The phenomenon of enhanced phytoplankton abundance down current from the Galapagos Islands has also been observed via traditional shipboard studies. The high productivity zone in a region marked by low productivity, high nutrient waters may result from one of several hypothesized processes: 1. Introduction of a "seed" population from the Galapagos platform waters which then generates the observed bloom. 2. Disruption of an environmental balance dominated by zooplankton, and a bloom caused when flow of water over the platform causes zooplankton to lose control, and 3. Introduction of the scarce element Fe into the nutrient rich waters as they pass near the Galapagos Islands, allowing a previously inhibited bloom condition to develop. Measurements of nutrients, Fe and other trace elements, productivity, POC, DOC, PON, DON, phytoplankton and zooplankton growth rates and related parameters around and inside the plume are planned to test the hypotheses.