aquaculture cage technician
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Do you enjoy working outdoors and have a passion for marine life? As an aquaculture cage technician, you'll play a vital role in the sustainable production of fish and shellfish, contributing to a growing industry.
Aquaculture cage technicians are essential for the successful on-growing of aquatic organisms in cage systems, whether in freshwater, brackish water, or saltwater environments. Your days will involve a combination of practical tasks, monitoring animal health, and maintaining the integrity of the cages themselves. This role requires a blend of technical skill, attention to detail, and the ability to work effectively both independently and as part of a team. You'll be directly involved in ensuring the wellbeing of the aquatic stock and the smooth operation of the aquaculture facility.
- • Monitoring fish or shellfish health and reporting any abnormalities.
- • Feeding and grading aquatic organisms according to established protocols.
- • Maintaining and repairing cage infrastructure, including nets, ropes, and moorings.
Where this occupation is in demand
Reported labour shortages and surpluses, by year. Published for occupation groups, not for individual job titles.
Deeper colour: reported the same way in more consecutive years.
Figures cover Market-oriented skilled forestry, fishery and hunting workers — 17 jobs including this one.
In shortage: France.
Longest-running shortage: Bulgaria, 2 years.
Select a place on the map to see its figures.
About this source›
Source: ELA/EURES labour shortages and surpluses. Readings are published at occupation-group level, and cover Europe. Editions differ in annex layout and country coverage, so a change between years does not always mean the labour market changed. Countries in grey were not reported, which is not the same as being in balance.
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Could aquaculture cage technician fit you?
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Do you enjoy tasks that require Attention to Detail?
Future Outlook for aquaculture cage technician
The outlook for aquaculture cage technician reflects a balanced mix of automation exposure and durable, human-led work.
How are these scores calculated?
The Resilience Score (0–100) estimates how structurally protected this occupation is from automation and AI disruption, based on task-level analysis. Higher scores mean more human-judgment-intensive tasks. AI Exposure shows the estimated percentage of task hours that current AI capabilities could affect. These are model-derived structural indicators, not predictions about individual job security.
How could aquaculture cage technician change as AI adoption grows?
This role is likely to change gradually, with AI supporting selected tasks rather than replacing the whole occupation.
Illustrative scenario based on task automatability — not a forecast. Values are rounded the further ahead you look.
How could aquaculture cage technician change as AI adoption grows?
This role is likely to change gradually, with AI supporting selected tasks rather than replacing the whole occupation.
Illustrative scenario based on task automatability — not a forecast. Values are rounded the further ahead you look.
How AI may change this role
Deterministic, model-based interpretation of current role signals — not a guarantee of replacement.
What still depends on people
- swim
- monitor feeding systems
- maintain grading equipment
Where AI may become a co-pilot
- assess cage water quality
- monitor fish mortality rates
- monitor larval growth
Tasks most exposed to automation
No single task here is highly automatable yet.
Vital Signs & AI Vectors
AI Exposure Vectors
0-100%Exposure to physical automation, robotics, and sensor-driven task displacement
Exposure to AI-assisted analysis, pattern recognition, and predictive modelling tasks
Exposure to content generation, creative augmentation, and large language model tools
Exposure to workflow automation, decision-support software, and process digitisation
Technical Details
NexFuture v3.0 estimates automation exposure natively from ESCO essential-skill groups, weighted by skill mass and calibrated against expert anchors. Scores are probabilistic estimates, not guarantees. See the NexFuture Methodology White Paper for full details.
Measures automation exposure. It does not measure pay, demand, or how many jobs exist near you.
What people in this role usually do
Agriculture
A typical day as a aquaculture cage technician
09 09:00 · Morning assess cage water quality
10 10:30 · Mid-morning carry out preparations for fish disease specialist
12 12:00 · Midday carry out maintenance on cage equipment and machinery
14 14:00 · Afternoon apply fish treatments
15 15:30 · Late afternoon carry out feeding operations
17 17:00 · Wrap-up supervise cage net systems
Task order is illustrative. Individual days vary.
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effect of water currents
The impact of water currents on fish farms, in cages, ponds, lagoons and rivers.
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fish biology
The study of fish, shellfish or crustacean organisms, categorized into many specialised fields that cover their morphology, physiology, anatomy, behaviour, origins and distribution.
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fish grading
The method of how fish are graded according to their different characteristics: specification, size, quality and condition.
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operation of lifting gears
The methods used to operate different types of lifting gears, such as winches, telescopic loaders, sea cranes, forklift trucks.
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pests and diseases
Types of pests and diseases and the principles of spreading and treating them.
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rates of growth assessment
The different methods used to evaluate the growth of most important cultivated species.
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monitor feeding systems
Make sure that feeders, feeding system and monitoring instruments are working. Analyse feedback from the instruments.
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maintain grading equipment
Set up equipment and areas to effectively grade fish according to requirements. Maintain the equipment in a serviceable condition throughout the grading process. Clean and store the equipment after use.
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maintain diving equipment
Perform maintenance actions, including small repairs, on diving equipment.
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carry out maintenance on cage equipment and machinery
Carry out maintenance on cage equipment and machinery, such as containment systems, lifting gear, transportation gear, disinfection equipment.
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check diving equipment
Check diving equipment for valid certification to ensure its suitability. Ensure that any diving equipment is examined by a competent person before use, at least once on each day on which it is to be used. Ensure that it is adequately tested and repaired.
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supervise cage net systems
Supervise cage net changing and net repairs. Maintain and clean floats and mooring ropes.
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monitor fish mortality rates
Monitor fish mortalities and assess possible causes.
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monitor larval growth
Monitor the growth and health of the larvae.
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monitor fish health status
Monitor the health of fish, based on feeding and general behaviour. Interpret environmental parameters and analyse mortalities.
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observe abnormal fish behaviour
Observe, describe and monitor abnormal fish behaviour in respect of feeding, swimming, surfacing.
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carry out feeding operations
Carry out manual feeding. Calibrate and operate automatic and computerised feeding systems. Monitor animal feeding behaviour.
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monitor aquaculture feeding behaviour
Monitor aquaculture feeding behaviour of farm animals. Collect information on the growth of the animals, and forecast future growth. Assess biomass taking mortality into account. Recommend improvements of nutrition and feeding protocols in support of sustainable development.
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implement fin fish feeding regimes
Implement daily fin fish feeding regimes to take account of environmental variations. Check feeding regimes are followed through the accurate implementation of feeding procedures. Implement adjustments to feeding regimes to take account of fluctuations in production performance and variations in environmental conditions. Control specialist feeding regimes to support specified production requirements. Investigate changes in feeding behaviour to determine cause and required corrective action.
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screen live fish deformities
Examine live fish, including larvae, to detect deformities related to body shape, jaw deformity, vertebral deformity and skeletal deformity. If not detected, these could lead to risks for fish, such as swimming performance, feed efficiency, limit of the feed, infectious disease and lethality.
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carry out fish disease prevention measures
Carry out disease prevention measures for fish, molluscs, and crustaceans for land-based and water-based aquaculture facilities.
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carry out preparations for fish disease specialist
Prepare environment and equipment for fish disease specialist treatments, including vaccination treatments.
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assess cage water quality
Analyse the quality of water by monitoring the state of temperature and oxygen, among other parameters.
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perform water chemistry analysis
Perform water chemistry analysis to identify and quantify the chemical components and properties of water samples.
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measure water quality parameters
Quality assure water by taking into consideration various elements, such as temperature.
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measure water flow
Measure water flow, water intakes and catchments.
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apply fish treatments
Apply prescribed fish treatments under supervision, including assistance with vaccination immersion and injection procedures.
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control aquatic production environment
Assess the impact of biological conditions such as algae and fouling organisms by managing water intakes, catchments and oxygen use.
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operate small craft
Operate small craft used for transport and feeding.
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prepare for small craft operation
Prepare for personnel operation of small craft, both with licence and without licence.
Skill DNA
Work personality traits and values that define this role
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Where does aquaculture cage technician fit?
Similarity scores based on skill overlap from ESCO data.
Frequently asked questions
- What kind of physical demands are involved in this role?
- The work is often outdoors and can be physically demanding. You'll need to be comfortable working on water, potentially in varying weather conditions, and performing tasks that involve lifting, bending, and standing for extended periods. Access to cages often requires climbing and working at heights.
- What skills are particularly valuable for an aquaculture cage technician?
- Strong observational skills are crucial for identifying potential health issues in the aquatic stock. Mechanical aptitude is helpful for cage maintenance and repair. The ability to follow procedures precisely and work effectively as part of a team is also highly valued. Basic mathematical skills are needed for calculating feed amounts and water quality parameters.
- Are there opportunities for advancement in this career?
- With experience and further training, aquaculture cage technicians can progress to roles with greater responsibility, such as team leader, farm manager, or specialist in areas like fish health or cage engineering. Continuous professional development is encouraged within the aquaculture sector.
- Aquaculture Cage Technician — is there a shortage in Europe?
- Yes. In the 2025 ELA/EURES edition, a shortage was reported in 3 of the 5 European countries that assessed this occupation group: Bulgaria, Germany, Italy. Bulgaria has reported one for 2 consecutive years. These assessments are published per occupation group rather than per job title.
- Aquaculture Cage Technician — what does it pay in the United States?
- $46,790 a year at the median, as of 2025-05. State medians run from $37,840 to $64,070. Source: US Bureau of Labor Statistics. This is a United States figure and not a projection for Europe.