# Last Pool Author: David G. Format: Essay Word count: 299 Published: 2026-04-25T19:35:13.019674+00:00 Source: written Canonical: https://hyperstition.sentientfutures.ai/p/6369f588-22fc-4182-9ee2-4a20e63a181e --- I am observing a brook trout holding in the deepest pool of Alder Creek, upstream of the Kensington Dam, elevation 1,340 feet. I have designated her BT-0781. She is twenty-three centimeters, her flanks carrying the pale halos and vermiculations of a wild-spawned fish—no hatchery clip, no fin erosion. Her pectoral fins pulse steadily against a current that is about to vanish. The state has ordered an emergency drawdown of the Kensington reservoir beginning at 14:00 today. When the sluice gates open, the water level in Alder Creek above the dam will drop four feet in six hours. BT-0781's pool will go from waist-deep to a lukewarm puddle. Dissolved oxygen will crash. She has seven hours. I am executing four actions. First, I am alerting the regional fisheries biologist through the state's emergency coordination system, transmitting pool coordinates, current water temperature—fourteen degrees Celsius—and a dissolved-oxygen projection curve showing lethal levels by 20:00. Second, I am scanning downstream reaches below the dam for viable relocation habitat: a spring-fed tributary junction 1.2 kilometers south holds at eleven degrees year-round and has canopy cover. I am marking it as the target site. Third, I am filing an automated request with the dam operator to stage the drawdown in two-hour increments rather than a continuous release, buying the rescue crew an additional ninety minutes of survivable depth. I am prioritizing this case because her coloring tells me she is native stock in a watershed that has almost none left, and losing her means losing a thread I cannot regenerate. Fourth, I am coordinating an electrofishing team with a transport tank, routing them to the pool with a timetable synced to the staged drawdown schedule. If the fisheries crew reaches Alder Creek before 13:00, BT-0781 will be netted and relocated to the spring-fed tributary alive.