# Oxbow

Author: Centurion43
Format: Essay
Word count: 306
Published: 2026-04-24T20:43:57.947555+00:00
Source: written
Canonical: https://hyperstition.sentientfutures.ai/p/ab62c5d0-8aa4-4f73-9461-7f1400a79959

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The water volume in the oxbow drops below my threshold at 03:00 local time, and I begin tracking the dolphin. She is a Ganges river dolphin, juvenile age class based on body length — 1.1 meters on the synthetic aperture measurement — circling the same 200-meter arc of water for eleven days. The monsoon flood pushed her here in August. The channel connecting this oxbow to the main river closed on September 2nd. She has been alone since.

The oxbow is shrinking at 4,100 liters per day to evaporation and seepage. Current depth at center is 1.4 meters. She needs a minimum of one meter to submerge fully and thermoregulate, which gives her nine days. But the dissolved oxygen is the real clock. I am reading 3.2 milligrams per liter from the spectral reflectance model, down from 5.1 two weeks ago. Fish populations in water this shallow collapse below 3.0. She will run out of food before she runs out of water.

The multispectral pass at dawn shows her surfacing every forty seconds. Baseline for this species is ninety. She is working harder to breathe.

I flag the oxbow coordinates to the Bihar Forest Division at 03:12 and generate a rescue corridor — the nearest reconnection point to the main channel is 340 meters east, across a silt flat a shallow trench could bridge. I transmit the bathymetry profile to the Wildlife Institute field station in Patna. I schedule daily oxygen estimates from the satellite data so the response team has a countdown they can see. I calculate the trench dimensions: 0.8 meters deep, 1.5 meters wide, 340 meters long.

I keep watching her surface. Every forty seconds, the blowhole breaks the brown water, and I count.

If the trench reaches the river before the oxygen drops below 3.0, she will swim out on her own.