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7 Crystal: The pupfish population in this spring is in fine shape, and reproduction is occurring. The exotic populations are not as high as in other places in Ash Meadows, and apparently the pupfish are maintaining good numbers. The total system, including the outflow, contain approximately 1500 pupfish; and this is a very conservative estimate as some difficulty in seining pro- duced low numbers relative to those counted with a.mask and snorkel. Many small pupfish were observed in the shallow waters of the pool as well as,in the sides of the outflow. Fairbanks: Within recent months a pump has been added to the spring head, and several people are living in a trailer adjacent to the immediate outflow. I did not observe or collect many fish from the spring pool, but the fish were doing well in the outflow below the trailer. Gambusia was present in large numbers lower down the outflow and became quite plentiful in the pool habitat that forms adjacent to the dike approximately one-half mile below the spring. The pupfish population in this spring system numbers about a thousand or less. This estimate as well as those that follow are very conservative in nature and are intended only as a rough guideline in the evaluation of the population. The actual population will be greater than the estimate given. Jackrabbit: This spring system is a nursery ground for both dace and pupfish. Several thousand of each species were observed from a few mm in length to adult sizes. The spring pool itself contains about 20 dace/10 meters and comparable numbers of pupfish where slower water can be found. All along the entire outflow for over a mile pupfish and dace were abundant, and a con- servative estimate of approximately 3000 for the entire system is given. This system also shows the highest concentrations of pupfish and dace fry as well as young of the year. Longstreet: This spring contains the highest numbers of Gambusia observed during the census. The population easily exceeds several thousand. The pup- fish population in the pool is doing well in spite of the exotics, and many fry and young of the year were obtained. The estimate for the pool population is approximately 750. During the course of measuring several hundred pupfish and Gambusia, I observed adult Gambusia consuming the smaller fish that were thrown back into the water. Point of Rocks: This spring contains both P. mexicana and Gambusia in high numbers but the pupfish population is low for a spring this size. The fish appear only to inhabit the immediate outflow before it enters the cemented irrigation ditch that runs to the west. The inflow from the springs that lie approximately 1/8 mile east supports high numbers of exotics for less than half the distance. The total population in this inflow and the spring pool is approximately 500, and the exotic populations are at least three to four times that number. East of Point of Rocks are springs which contain only small numbers of fish, and outflow does not support good populations until nearly half of the 1/8 mile to Point of Rocks has been reached. Exotics are the most numerous fish in the outflows, but small population in these springs is approximately 150. The pupfish population in these springs is approximately 150. The possibilities of migration between the two connected springs is surely realistic, and this estimate may be biased.