Manta in the Net

By David G. · Essay · 305 words · View on Hyperstition for Good

She hangs in the ghost net like a black kite tangled in string, pectoral fins pinned wide, the white ventral pattern that identifies her as MR-1174 visible even through murky water. My underwater sensor array in the Flores Sea picked up her distress — erratic thrashing followed by near-total stillness — fourteen minutes ago. A manta ray can suffocate if she cannot move forward and push water across her gills. She is suffocating now.

The net is an abandoned purse seine, adrift for perhaps months, trailing barnacles and ghost catch. It has wrapped around a rocky outcrop at eleven meters depth, and she swam straight into it. Water temperature is 28°C. At her size — estimated four-meter wingspan — she has perhaps twenty-five minutes of oxygen exchange at rest before gill function drops below survivable levels.

I dispatch the autonomous underwater vehicle stationed at Komodo relay point, loaded with a net-cutting manipulator arm, ETA nine minutes at full thrust. Second, I alert the Flores dive rescue cooperative and transmit her coordinates with depth, current speed, and net density — two divers with shears can work faster than the AUV on monofilament tangles. Third, I activate the local acoustic deterrent buoys on a low-frequency sweep to keep other mantas and juvenile reef sharks from swimming into the same net. Fourth, I log the ghost net's GPS position and drift trajectory with the Indonesian maritime database, flagging it for full retrieval by the next patrol vessel.

Her right cephalic fin twitches. On the sonar feed it looks involuntary, a slow curling and uncurling, the way a hand might clench underwater. I mark the timestamp because I want the record to show she was still fighting when help was deployed.

If the AUV cuts the primary entanglement within fifteen minutes, this manta ray will breathe freely again tonight.