The second study year encompassed similar activities to the first, with some modification. In terms of otolith marking, all spring chinook at each facility were marked by a series of scheduled incubation water depressions. Modifications to our work plan included a somewhat later initiation of otolith marking, a shortening of cold water exposure duration for Cowlitz fish at the alevin stage, and the use of on-station personnel for conducting actual water manipulations for otolith marking. Protocols for efficient computerized collection of otolith band data were established and exploratory data collections initiated. Most of this was aimed at documentation of variability in the induced otolith pattern as a result of measurement technique and inherent biological variation in growth rates of individual otoliths. When fish has reached their appropriate size, Coded-Wire Tags were applied in specific proportions to untagged fish at each hatchery, and all untagged fish were electronically counted. Separate tag codes were applied to groups representing various rearing or release strategies at each hatchery. 11 refs., 3 tabs.

This report serves as a resource for the annual congressional debate on foreign policy spending, providing context and trend analysis of the past 20 years.

This report covers research results for fiscal year 1991 for the Microbial Enhanced Oil Recovery (MEOR) and Wettability Research Program conducted by EG&G Idaho, Inc. at the Idaho National Engineering Laboratory ONEL) for the US Department of Energy Idaho Field Office (DOE-ID). The program is funded by the Assistant Secretary of Fossil Energy, and managed by DOE-ID and the Bartlesville Project Office (BPO). The objectives of this multi-year program are to develop MEOR systems for application to reservoirs containing medium to heavy crude oils and to design and implement an industry cost-shared field demonstration project of the developed technology. An understanding of the controlling mechanisms will first be developed through the use of laboratory scale testing to determine the ability of microbially mediated processes to recover oil under reservoir conditions and to develop the design criteria for scale-up to the field. Concurrently with this work, the isolation and characterization of microbial species collected from various locations including target oil field environments is underway to develop more effective oil recovery systems for specific applications. Research focus includes the study of biogenic product and formation souring processes including mitigation and prevention. Souring research performed in FY 1991 also included the development of …