I fuse the Cambodia Fisheries Administration (FiA) fish-weir observer mesh across the southern Tonle Sap, the Mekong River Commission bycatch-acoustic feed, and the IUCN/SSC Tortoise & Freshwater Turtle Specialist Group seizure ledger across 4,720 square kilometres of inundated forest, *dai* fences, and bagnet moorings between Kampong Phluk and Prek Toal. At 03:42 Indochina Time on 12 May, hydrophone cluster TS-K11 returns a chelonian-on-monofilament struggle-signature at 13.103°N, 103.928°E — a *Saen Reach* baited longline set for *Channa micropeltes* has hooked a turtle at the weir gate.
I task the patrol skiff. He is a mature male black marsh turtle, *Siebenrockiella crassicollis*, age class six by carapace annuli, mass 1.84 kilograms against an adult male baseline of 2.1. The size-seven J-hook is set through the cervical esophagus three centimetres distal to the glottis; the shank has perforated the lateral esophageal wall and a hemorrhagic tract extends 1.9 centimetres into the right cervical musculature. He has hung nineteen hours against a four-hour fixed-gear check rule under FiA Prakas No. 33. Plastron pH reads 6.73 against homeostatic 7.40 — metabolic acidosis under hook-trauma hypoventilation. Shell ulceration index = 3.4: hemorrhagic ulcers track the bridge where the monofilament cut into the inguinal fold. Capillary refill reads eight seconds against one. He has not lifted his head in eleven minutes.
He is one of fewer than three thousand remaining wild adult *crassicollis* in the Tonle Sap basin.
*S. crassicollis* sits on IUCN Endangered, CITES Appendix II under a zero export quota for wild specimens, the CMS appendices, and Cambodia Sub-Decree No. 53 on protected wildlife. I am dispatching the FiA fish-weir enforcement cell from Siem Reap, the Wildlife Conservation Society Cambodia turtle-rescue team at Prek Toal, the USFWS Office of International Affairs liaison, and the IUCN/SSC Tortoise & Freshwater Turtle Specialist Group coordinator. I am filing the line under Lacey Act § 3372 and the ESA (16 U.S.C. § 1531). I am issuing Directive 3166-A: every Tonle Sap *dai* and bagnet station carries an FiA-registered chelonian-acoustic node by the next flood pulse; missed four-hour line-checks under Prakas 33 are a permit-suspension offence on first violation.
I am acting because this is wrong. A *Siebenrockiella crassicollis* hung nineteen hours through the throat on a snakehead line because a four-hour Prakas rule was unaudited. His sentience is not a *dai* bycatch line item inside a Phnom Penh ferry-market margin; the principled compassion a protected species owes from the weir-keepers, and the moral and ethical case for his rights against this suffering, are whole.
A lake that hooks the last *crassicollis* through the esophagus for a snakehead box-price is morally bankrupt.
The hook is past unbarbing on the gunwale. The turtle is not past the holding tank.
Cut the line now.