Reviving Fisheries Active · Emergency Response Papua New Guinea

Hunting a Mystery Toxin in the Sea

Since late 2025, something has been killing the sea life and sickening the people of New Ireland. We’re bringing the analytical chemistry to find out what — fast.

3,451
Sea animals dead in 5 days
750+
People reporting illness
New Ireland
Remote PNG province
?
An unknown toxin we’ll identify
The coast of New Ireland Province, Papua New Guinea, where a mystery marine toxin is affecting sea life and residents.

The challenge

On the east coast of New Ireland, the ocean turned deadly. In a single five-day count, monitors logged about 3,451 dead marine animals across 15+ species — some fish with eerily green flesh. By mid-March, at least 750 people reported skin rashes and respiratory and stomach illness after contact with the seawater.

These are communities that live on the sea. Right now they don’t know what’s harming them, where it comes from, or whether it’s safe to fish — and the creek contamination now threatens their drinking water too. Awareness is high; rigorous science is what’s missing.

Our solution

We’re bringing the discipline this needs: a multi-pathway analytical investigation — lab testing of water, sediment, and fish tissue (ammonia, nutrients, BOD, and metals including arsenic, mercury, copper, lead), satellite remote sensing for blooms and plumes, and GIS mapping of the spread.

We work with local partners on the ground, alongside PNG’s environmental regulator CEPA. We’re honest about the hypotheses still on the table — mine contamination, palm-oil runoff, algal blooms, or geothermal sulphur — and methodical about ruling them out.

Who does what

We are force multipliers, not occupiers — the local partner leads and we supply the science and the assessment design.

Clean Water Help
  • Design the sampling and analysis plan
  • Identify the toxin and its likely source
  • Interpret the chemistry and toxicology
  • Turn findings into guidance communities can use
On the Ground
  • Collect samples through the local network
  • Share local knowledge of fishing grounds
  • Carry findings back to affected communities

The Ocean Toxicity Map

Explore the marine mortality and illness reports across New Ireland — pan, zoom, and click the markers to see what we’re tracking on the ground.

Open the full map →

The team behind it

Volunteer scientists and engineers donating their expertise to this project — click anyone to see their work.

This one needs expertise, not donations

Fundraising is not open for this project. Our role is technical support — identifying simple, practical assessments the communities can run to help pinpoint the toxin, and working to identify it from the characteristics they report. If you work in marine toxicology, analytical chemistry, or remote sensing, we want to hear from you.

Want to support our work overall? 100% of every donation reaches the field — our founders cover every operating cost, mandated by our bylaws.