Deep-Sea Mining Survey Surveillance — Clarion-Clipperton Abyssal Plain
Observe-tier surveillance of the Abyssal Yield Consortium's nodule-collector survey, shadowing operations and mapping the sediment plume from the abyssal floor. Collector tracks and plume extent imaged; baseline science recovered. No contact; no disruption.
Summary
Over a three-day shadow on the central Pacific abyssal plain, the submersible DSV Nerites, tended on the surface by RV Tidewright and supported by an Argus Swarm, surveilled the nodule-collector survey run by the Abyssal Yield Consortium across the Clarion-Clipperton fracture zone. Nerites imaged the collector's tracks gouged into habitat that took millions of years to form, mapped the extent of the sediment plume smothering the benthos far beyond the licence block, and recovered baseline samples from ground the consortium had never surveyed before its tracks arrived. The objective was strictly to observe and record; there was no contact and no disruption.
Intelligence Picture
The Consortium operates the first industrial-scale nodule harvester over abyssal plains no human had surveyed before the collector arrived — under a thin veneer of sponsored-state legality, and before the seabed-mining code's environmental thresholds were finalised. NEREID held the target at Observe to build the baseline science the Consortium itself never gathered.
- One industrial nodule collector working an unbroken abyssal plain inside a Pacific micro-registry licence block.
- Sediment plume modelled to smother benthic communities hundreds of kilometres beyond the block.
- Unsurveyed chemosynthetic vent fields and nodule-fauna at risk with no baseline study on record.
- Harm assessed Severe and irreversible — geological-time loss — by NEREID; objective set at Observe: shadow, image, sample baseline, withdraw.
Execution
Conducted under Observe-tier rules: shadow, image, sample, withdraw. Touch nothing of the operation; take only baseline science. Narrative log, condensed:
- Surface stage (Day 1). Tidewright held a horizon-line standoff under a routine survey legend; Nerites descended to the plain and the Argus Swarm staged for mid-water plume work.
- Track imaging (Days 1–2). Nerites ran the collector's wake at a safe stand-off, imaging the fresh tracks and the stripped seabed, every frame time-stamped to the evidence locker.
- Plume mapping (continuous). The Argus Swarm profiled the sediment plume through the water column — concentration, drift, and extent beyond the licence block — building the dispersal record the Consortium never published.
- Baseline sampling (Day 2). Nerites recovered sealed sediment and nodule-fauna samples from ground just outside the collector path, each logged to chain-of-custody — the baseline the Consortium skipped.
- Withdraw (Day 3). With tracks imaged, plume mapped, and baseline aboard, Nerites surfaced to Tidewright and the watch broke off under the survey legend. The collector was never approached or impeded.
Outcome & Evidence
The full survey package — collector-track imagery, the plume dispersal map, and the baseline sample set — was logged as DM-2091-0518 and sealed to Evidence & Custody as the scientific foundation for the legal challenge to the licence. Affected records in the Universal Marine Registry were annotated: a nodule-field benthic species (AE-SPX-0078), a vent-field chemosynthetic organism (AE-SPX-0079), and a deep-water species of the plain (AE-SPX-0015).
Follow-on
- Seal package DM-2091-0518 as the scientific foundation for the licence challenge; attach to the Abyssal Yield Consortium dossier.
- Maintain persistent ROV shadowing and plume-mapping cadence on the active block per the standing Disrupt-tier intent.
- Curate the baseline sample set into the registry as the reference dataset the Consortium never published.
- Annotate affected registry records (AE-SPX-0078, 0079, 0015) with the survey findings.