This report summarizes the progress and research accomplishments of the Aquatic Species Project. The four articles included are summaries of individual research projects and are entered into the EDB as such. The goal of the Aquatic Species Project is to develop the technology base for large-scale production of oil-rich microalgae. The project is also developing methods to convert the microalgal lipids into liquid fuels needed for industry and transportation. Researchers in the Aquatics Species Project focus on the use of microalgae as a feedstock for producing renewable, high-energy liquid fuels such as diesel. It is important for the United States to develop alternative renewable oil sources because 42% of the current energy market in the United States is for liquid fuels, and 38% of these fuels are imported. In 1979, the US Department of Energy (DOE) and the National Renewable Energy Laboratory (NREL) initiated the Aquatic Species Project as part of the overall effort in biofuels. The project began to focus exclusively on fuels from microalgae in 1982. Estimates show that the technology being developed by the project can provide as much as 7% of the total current energy demand. The program`s basic premise is that microalgae, which have been …

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Highlights of the DIII-D Research Operations task are: completed five weeks tokamak operations; initiated summer vent; achievement of 10.7% beta; carried out first dimensionless transport scaling experiment; completed IBW program; demonstrated divertor heat reduction with gas puffing; field task proposals presented to OFE; presentation of DIII-D program to FPAC; made presentation to Admiral Watkins; and SAN safety review. Summaries are given on research programs, operations, program development, hardware development, operations support and collaborative efforts. Brief summaries of progress on the International Cooperation task include: TORE SUPRA, ASDEX, JFT-2M, and JET. Funding for work on CIT physics was received this quarter. Several physics R and D planning tasks were initiated. Earlier in FY90, a poloidal field coil shaping system (PFC) was found for DIGNITOR. This quarter more detailed analysis has been done to optimize the design of the PFC system.

During this period, the ARIES-I blanket design team completed the preparation of the ARIES-I reactor design final report. The helium-cooled, lithium breeder, SiC composite structure blanket option for the ARIES-II was evaluated and it was found that the corrosion resistance of the SiC in lithium is very poor. At the direction of DOE/OFE, the ARIES team was directed to defer work on the ARIES-II and to begin work immediately on the ARIES-III advanced fuel (D-{sup 3}He) tokamak design. Also, Varian EIMAC completed fabrication of two X2274 tetrode tubes and shipped them to Japan for testing on schedule. JAERI carried out the testing and both tubes operated successfully above specifications. The US and Chinese beryllium shells were shipped to Osaka University in Japan, beginning the second phase of the ``Coordinated U.S./PRC, U.S./Japan and Japan/PRC Fusion Neutron Integral Experiments.`` New fusion nuclear data experiments are being initiated for O(n,alpha) and Tc{sup 99}(n,p) cross section. Finally, the design and installation of the DiMES in-vessel components on DIII-D was completed.

Studies of species interactions were implemented to address concerns about the possible effects of supplementation (with anadromous species) on resident fish populations in the upper Yakima River basin. The current study objectives include collection of baseline information on the fish populations in the upper Yakima River and associated tributaries. As part of this baseline phase, spawning surveys of the upper Yakima River and thirteen selected tributaries between Roza and Keechelus dams were initiated during the spring of 1990. This report summarizes the results of field activities conducted from December, 1989 to June, 1990.