Sunlight breaking through the surface of open blue water, seen from below

The base platform

A dead zone is not a permanent condition.

Water goes anoxic because the oxygen leaves faster than it returns. SeaBreather returns it — at depth, at volume, from a vessel that goes to the water instead of waiting for the water to come to a plant.

2 mg/L The dissolved-oxygen line below which most aquatic life cannot hold on NOAA NCCOS
400+ Coastal dead zones counted worldwide, roughly doubling each decade since the 1960s Diaz & Rosenberg, Science, 2008
Larger than Scotland The midwater of the Gulf of Oman, where a 2018 seaglider survey expected to find oxygen and found almost none left Indicative — Queste et al., Geophys. Res. Lett., 2018, via ScienceDaily

The argument

Treatment plants wait. Water does not.

Almost every tool built for bad water assumes the water will be brought to it. Pipe it, pump it, hold it, treat it, send it back. That works for a municipal supply. It does not work for a bay.

A hypoxic estuary in August is a moving problem. The oxygen deficit sits in a layer, the layer shifts with tide and wind, and the fish that die do so in the three days before anyone has agreed on a budget line. By the time an intervention is designed around fixed infrastructure, the season is over and the loss is booked.

So we built the treatment around the vessel instead. SeaBreather carries its gas handling, its oxidation stage and its delivery array on a hull that can be in the affected water the same week. It treats in place, at depth, and it moves as the problem moves.

That is the whole design premise. Everything else — the nanobubble physics, the telemetry, the fleet routing — exists to make that premise pay.

What the platform is for

Three jobs, done from the same hull.

Dissolved oxygen restoration

Hypoxic and anoxic water brought back above the survival threshold, and held there through the season rather than for an afternoon. This is the core service and the reason the platform exists.

Fishery oxygen boost

Targeted oxygenation around net pens, nursery grounds and landing areas, where a few hours below threshold is the difference between a harvest and a write-off.

Thermal hot-spot mitigation

Warm water holds less oxygen and stratifies harder. Breaking a thermal cap where it forms addresses the cause of the deficit, not only the symptom.

And a fourth, on the way to the others.

Deep Strike is proactive interception — treating the adjacent water where a bloom or a deficit is forming, before it arrives in the service zone as somebody's emergency.

Why it matters commercially

A base subscription that only reacts is priced against the events it cleans up. A subscription that intercepts is priced against the events that never happen — which is both cheaper to deliver and worth more to the buyer.

Deep Strike is included in the base service zone for exactly that reason.

How the treatment works

Nano Bubble Oxidation Technology, in one paragraph.

Gas is sheared into bubbles small enough that they stop behaving like bubbles. Below roughly a micron they no longer rise and burst; they carry a surface charge, stay suspended, and hand their gas to the water across an enormous combined surface area.

Published work on nanobubble aeration has measured the gas–liquid mass transfer coefficient rising roughly elevenfold against conventional bubbles for the same delivered gas volume. That is the physics the platform is built on: not more gas, but gas that actually dissolves instead of escaping to the sky.

The full technical account

A dense column of fine bubbles rising through dark water
Conventional aeration puts most of its gas back into the atmosphere within seconds. The size of the bubble decides whether the oxygen ends up in the water or in the air above it.

Reassurances

What SeaBreather does not do.

These are the questions a harbourmaster, a fisheries directorate and an environment ministry ask in the first meeting. They are fair questions and they deserve flat answers.

  • It does not introduce a chemical that has to be dosed, tracked and eventually removed. The working input is gas.
  • It does not require the water body to be enclosed, drained, dredged or taken out of use while the work happens.
  • It does not run an unmanaged oxidation stage in seawater. Bromate formation is a known risk of ozonating bromide-rich water and it is controlled by dose, contact time and pH, monitored in situ.
  • It does not claim to fix the catchment. Nutrient loading is an upstream problem. We treat the water body while that fight is won or lost on land.

The programme

A service zone, not a project.

Aquatic Prosperity is sold as capacity held inside a defined area of water for a defined part of the year, with the base subscription covering proactive protection and adjacent Deep Strikes. Upgrades add capability or widen the zone.

SeaBreather vessel tiers and the service zones they suit
Vessel tier Typical water Suits
Nimble Marinas, creeks, inner harbours, aquaculture blocks, shallow lagoons A single asset or a single stretch of shoreline with a recurring seasonal problem
Standard Bays, estuaries, port basins, desalination intake approaches, reef margins A municipal or industrial service zone with several assets and a defined season
Mega Large open zones, multi-site coastlines, national programmes A regional or sovereign programme routed as a fleet rather than a vessel

Base subscription

Full-capacity service with SeaBreather vessels in water for the contracted season, all gases and natural augments included, proactive zone protection and adjacent Deep Strikes to intercept events before they grow.

Programme terms as offered by Alarivean, Inc.

Available upgrades

  • HAB Deep Strike
  • Fishery Oxygen Boost
  • Reef Flourish
  • Beach Cleanse
  • Oil Spill Detox & Vent
  • Ballast Water Quarantine
  • Desal I/O Defence+
  • Saline Ag Supercharge
  • + Service Zone

On the record

Where the platform has actually been in the water.

We would rather point at a permit number than at an adjective.

In September 2024, Alarivean, Inc. received Florida Department of Environmental Protection permit FLOA00062 for a red tide mitigation field trial using an ozonated-seawater craft, under a five-year window, with the trial conditioned on active Karenia brevis above 100,000 cells per litre. The Sarasota Bay Estuary Programme and the Florida nonprofit START both wrote it up. Open either one; neither was written by us.

It is a trial and not a proof of scale. The estuary programme says so in public, which sounds like distance until you notice what else it did: technical backing for the application, and deliberately no money. They want to be the body measuring this in open water before anyone endorses it past their own bay. So do we. An endorsement is worth nothing unless the readings underneath it were taken by somebody with no stake in them.

One further thing sits on the record, and it is ours to state rather than anybody else's to confirm. Alarivean holds a Cooperative Research and Development Agreement with NOAA; work under it with the agency scientist Dr Peter Moeller established that this treatment sterilises inorganic toxins. A CRADA is private by design and never posted, so there is no document to go and find. It is also a research agreement rather than a seal of approval, and we would not want it read as one.

What is published, what is permitted, what is still open

A small survey workboat under way on open water
The platform scales down as well as up. A trial hull and a Mega-tier vessel run the same treatment stage at different capacities.
Sunlit ripples across the surface of open water

Immediate, Significant, Scaled

Tell us about your water.

The water body, the stressor, the season, and what it is costing you. Alarivean comes back with a site-specific read on what a bespoke Aquatic Prosperity programme would change — and what it would not.