Hypoxia in aquaculture is one of the most critical parameters for understanding fish behavior, appetite, health, and welfare, directly impacting growth and overall  production performance and profitability. Dissolved oxygen depletion can occur rapidly and without visible warning signs, leading to reduced appetite, chronic stress, and in severe cases, mass mortality events.

In modern salmon aquaculture, managing dissolved oxygen is no longer just about monitoring; It requires anticipation. By combining expertise in fish biology and AI, BiOceanOr delivers valuable forecasting solutions, that now enable fish farmers to predict oxygen drops several hours in advance and take preventive actions before critical thresholds are reached.

Talk to our team about improving your oxygen risk management strategy.

Contact us

A Biologist’s Perspective from the Field

For Hege Gjesdal, Fish Health Biologist at BiOceanOr, based in Bergen, Norway, hypoxia is not a theoretical concept. It is a daily operational challenge faced by aquaculture operators.

Working closely with Norwegian fish farmers, she has seen how dissolved oxygen levels can fall below critical thresholds without immediate visible symptoms.

Unlike sea lice or wounds that lead to visible stressors, oxygen depletion does not always trigger immediate behavioral changes. Yet its consequences can be severe:

Reduced appetite
Chronic physiological stress
Reduced growth rate
Increased risk of mass mortality events

By the time fish behavior changes, performance is often already compromised.

Discuss with our experts

From Crisis Response to Proactive Prevention

Traditionally, oxygen management relies on reactive monitoring. A drop is detected, and then corrective actions are triggered.

This approach creates operational pressure and increases biological risk.

As Hege Gjesdal, Fish Health Biologist at BiOceanOr, based in Bergen, Norway, explains:

“We need to shift from crisis management to anticipation and prevention.”

And BiOceanOr enables that shift. Instead of responding to emergencies, aquaculture operators can anticipate dissolved oxygen fluctuations hours ahead.

This proactive approach improves:

Fish welfare
Feed efficiency
Operational planning
Financial predictability

AI-Powered Dissolved Oxygen Forecasting

BiOceanOr’s oxygen forecasting models combine:

Real-time environmental data
Hydrodynamic parameters
Farm operational inputs
Data from historical production cycles
Species-specific biological knowledge
Advanced AI algorithms

This integrated approach enables early detection of weak signals that precede hypoxia events.

As a fish health biologist, Hege Gjesdal from BiOceanOr strongly believes in the synergy between science and technology:

“Biology and technology must work hand in hand. Data is only useful when it helps us make better decisions for fish welfare and production performance.”

Predictive analytics become a practical decision-support tool that help farmers act before risk escalates.

Request a personalized demo

Acting Before Hypoxia Sets In

When dissolved oxygen drops are forecasted in advance, aquaculture operators can take targeted preventive actions such as:

Adjusting aeration systems
Optimizing feeding strategies
Temporarily removing sea-lice skirts
Strategically planning harvest operations

Anticipation allows fish farmers to:

Improve fish health and welfare
Maintain optimal feeding
Reduce sanitary risks
Secure profitability

Instead of reacting under pressure, aquaculture operators operate with control and foresight.

Stay Ahead of Hypoxia

Hypoxia should no longer be considered an unavoidable risk in aquaculture.

With AI-powered and biology-driven dissolved oxygen forecasting, aquaculture operators can anticipate environmental stress, and optimize operational performance.

Field experience in Norway clearly demonstrates that anticipation is now a competitive advantage in modern aquaculture.

Contact us

See also

View all news