U.S.-Australia Joint Workshop on Skeletal Microchemical Marine Fish Analysis, Hobart, Australia, March 1992

该奖项支持六个人的交通和每日津贴费用， 美国参与者在美国-澳大利亚Skills联合研讨会 微量化学海洋鱼类分析，将在霍巴特（塔斯马尼亚）举行， 澳大利亚，1992年3月2日至6日。 会议在 美国的赞助-澳大利亚合作科学计划，并将 将使用相对较新技术的研究人员聚集在一起， 骨骼微量分析来研究海洋鱼类种群。 这 方法，其中包括X射线光谱分析骨化 结构（如耳石）在鱼，提供了一个机会， 更好地了解一些商业移民的迁移模式， 重要鱼类 这一承诺的基础是观察到， 鱼骨骼中微量元素组成和同位素比值 结构显示出不同的环境历史 例如特定的河流系统或其他区域 产卵的地方 研讨会的协办单位是 Robert C.渔业研究所所长弗朗西斯 研究所，华盛顿大学，和博士罗纳德 澳大利亚联邦科学与工业研究组织渔业司，塔斯马尼亚州，霍巴特。 澳大利亚 参与得到了澳大利亚政府的支持。 工业、技术和商业。 也会有一些 其他国家的与会者。 鱼类从其产卵区扩散的程度， 由于幼虫的被动运动和后来的主动迁移， 鱼的幼鱼和成年鱼，决定了地理大小， 海洋人口。 了解的大小，结构和起源， 这些种群对生态学家、渔业 生物学家和负责沿海生境管理的人。 较旧的程序用于测量鱼类的运动，因此， 鱼类种群的空间尺度，给出了模棱两可的结果。 的 相对较新的骨骼微量分析技术提供了重要的 如果可以的话，还可以进一步发展。 澳大利亚科学家 是这一领域的世界领导者，大多数科学家使用 新的方法是在美国或澳大利亚。 不同 研究小组正在使用不同的方法， 仍然停留在对结果的解释上。 研讨会将 允许一些最活跃的骨骼微量分析从业者 与同事分享他们的实验细节和结果 与其他科学家更接地的物理基础， 测量. 预计这将导致更好的理解 和技术的利用，并提高效率， 努力在未来开发它。 这项技术有潜力 美国全球变化研究计划（GLOBEC） 一项了解海洋动物种群的倡议， 生态系统对全球变化的反应 根据研讨会， 关于微化学技术应用于 将编写海洋种群分析报告。

This award supports the transportation and per diem costs of six U.S. participants in a U.S.-Australia Joint Workshop on Skeletal Microchemical Marine Fish Analysis, to be held in Hobart (Tasmania), Australia, March 2-6, 1992. The meeting takes place under the auspices of the U.S.-Australia Cooperative Science Program, and will bring together researchers who are using the relatively new technique of skeletal microanalysis to study marine fish populations. This approach, which involves x-ray spectrometric analysis of ossified structures (e.g. otoliths) in fish, offers an opportunity for greater understanding of the migration patterns of some commercially important fishes. The basis of this promise is the observation that trace element composition and isotope ratios in fish skeletal structures show differences depending on the environmental history of the fishes, such as the particular river system or other area where spawning occurred. The co-organizers of the seminar are Professor Robert C. Francis, Director of the Fisheries Research Institute, University of Washington, and Dr. Ronald Thresher, of the Australian CSIRO Division of Fisheries, Hobart, Tasmania. Australian participation is being supported by the Australian Department of Industry, Technology, and Commerce. There will also be a few attendees from other countries. The extent of dispersal of fishes from their spawning areas, as a result of passive movement of larvae and, later, the active migration of fish juveniles and adults, determines the geographic size of marine populations. Knowledge of the size, structure, and origins of these populations is of importance to ecologists, fisheries biologists, and those responsible for management of coastal habitats. Older procedures used to measure the movement of fishes, and thus the spatial scale of fish populations, have given ambiguous results. The relatively new technique of skeletal microanalysis offers important advantages, if it can be further de>loped. Australian scientists are world leaders in this area, and most of the scientists using the new methodology are either in the U.S. or Australia. Different research groups are using different approaches, and difficulties still remain in the interpretation of results. The seminar will permit some of the most active practitioners of skeletal microanalysis to share their experimental details and results with their colleagues and with other scientists more grounded in the physical basis of the measurements. This is expected to lead to a greater understanding and utilization of the technique, and to a greater efficiency of effort in exploiting it in the future. The technology has potential for application in the U.S. Global Change Research Program (GLOBEC), an initiative to understand the marine animal population and ecosystem responses to global change. Based on the seminar, a summary document on applications of microchemical techniques to analysis of marine populations will be prepared.