U.S.-German Cooperation in Comparative Studies of Lake Biology

该奖项支持来自湖沼学中心的四位科学家 和威斯康星州大学植物系，由 迈克尔·S·教授亚当斯，合作进行几项研究 与马克斯·蒂尔泽博士和其他 康斯坦茨大学湖沼学研究所。 美国 参与者将他们的合作建立在NSF资助的 长期生态研究（LTER）项目，重点是 几个湖泊的物理、化学和生物湖沼学 位于威斯康星州的北方高地湖区的一个小湖泊。 相比之下，德国人正在研究一个很深的湖泊， 博登湖：德国南部的一个大湖，康斯坦茨湖（博登湖） 这两个大型研究项目的重点之一是 藻类和非藻类对光散射和吸收的作用 控制初级生产力的材料（ 悬浮的植物营养藻类）。 该协作 科学家们还将比较他们不同的概念模型， 初级生产力及其不同的测量方法 这两个小组也参与了长期的研究， 酸雨对水生生态系统的影响。 他们打算比较 他们获得的洞察力。 德国项目负责人是浮游植物量子方面的专家 效率 美国的方法将得到加强，并从中受益 量子效率的精确解释。 美国 研究小组使用一种复杂的实验室孵化方法， 确定初级生产力， 分析的灵活性。 德国人使用的是旧的 "原位"程序提供准确的现场测量， 缺乏实验的灵活性。 他们用来耕种的湖泊 研究在许多方面不同， 比较。 拟议的合作将增进对 水生系统、初级生产力的自然变化 方法和模型，以及湖泊的光气候。 它将 也有助于重要的正在进行的研究工作，在酸 证词

This award supports four scientists from the Center of Limnology and Department of Botany of the University of Wisconsin, led by Professor Michael S. Adams, to collaborate in several studies of mutual interest with Dr. Max Tilzer and others of the Institute of Limnology of the University of Konstanz. The U.S. participants are basing their collaboration on their NSF-funded Long-Term Ecological Research (LTER) project that focuses on the physical, chemical and biological limnology of several small lakes in the Northern Highland Lake district of Wisconsin. The Germans, in contrast, are studying the limnology of a deep, large lake in southern Germany, Lake Konstanz (the Bodensee.) One topic of emphasis in both large research programs is the role of light scattering and absorption by algal and non-algal materials in controlling primary productivity (the growth of the suspended phytoplanktonic algae.) The collaborating scientists will also compare their different conceptual models of primary productivity and their different methods of measuring it. Both groups are also involved in long term studies of the impact of acid rain on aquatic systems. They intend to compare the insights they have gained. The German project leader is an expert on phytoplankton quantum efficiency. The US methods will be strengthened and benefit from accurate interpretations of quantum efficiency. The US team uses a sophisticated laboratory incubation method for determining primary productivity that permits great experimental and analytical flexibility. The German group uses the older "in situ" procedures that give accurate field measurements but lack experimental flexibility. The lakes they use for field study differ in a number of ways that make for interesting comparisons. The proposed collaboration will enhance understanding of the natural variability of aquatic systems, of primary productivity methods and models, and of the light climate of lakes. It will also contribute to important on-going research efforts in acid deposition.