Profession aquaculture cage technician
Aquaculture cage technicians operate in the production of aquatic organisms in water-based (freshwater, brackish water, salt water) on-growing processes in cages.
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- Enterprising / Realistic
- Realistic / Investigative
- Pests and diseases
Types of pests and diseases and the principles of spreading and treating them.
- Operation of lifting gears
Use of different types of lifting gears, such as winches, telescopic loaders, sea cranes, forklift trucks.
- 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.
- Fish grading
The method of how fish are graded according to their different characteristics: specification, size, quality and condition.
- Water currents
Understand impact of water currents on fish farms, in cages, ponds, lagoons and rivers.
- Rates of growth assessment
The different methods used to evaluate the growth of most important cultivated species.
- Screen live fish deformities
Screen for deformities in live fish including larvae
- Perform diving interventions
Perform hyperbaric interventions at a maximum pressure of 4 atmospheres. Prepare and review the personal equipment and the auxiliary material; perform and supervise the dive; realise maintenance of the diving equipment and auxiliary material; apply the security measures to assure the divers security on the realisation of low deep immersions.
- 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.
- Assess cage water quality
Carry out daily assessment of water quality parameters inside the cages such as temperature, oxygen, salinity, pH, N2, NO2,NH4, CO2, turbidity, chlorophyll. Monitor microbiological water quality.
- Control aquatic production environment
Assess the impact of biological conditions such as algae and fouling organisms by managing water intakes, catchments and oxygen use.
- Preserve fish samples for diagnosis
Collect and preserve larval, fish and mollusc samples or lesions for diagnosis by fish disease specialists.
- Use water disinfection equipment
Operate water disinfection equipment, using mechanical filtration, biological filtration, UV disinfection and ozonation as needed.
- Carry out feeding operations
Carry out manual feeding. Calibrate and operate automatic and computerised feeding systems.
- Supervise cage net systems
Supervise cage net changing and net repairs. Maintain and clean floats and mooring ropes.
- 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.
- 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.
- Carry out preparations for fish disease specialist
Prepare environment and equipment for fish disease specialist treatments, including vaccination treatments.
- Apply fish treatments
Apply prescribed fish treatments under supervision, including assistance with vaccination immersion and injection procedures.
- Measure water flow
Measure water flow, water intakes and catchments.
- Maintain diving equipment
Perform maintenance actions, including small repairs, on diving equipment.
- Operate small craft
Operate small craft used for transport and feeding.
- Carry out fish disease prevention measures
Carry out disease prevention measures for fish, molluscs, and crustaceans for land-based and water-based aquaculture facilities.
- 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.
- Monitor feeding behaviour
Monitor feeding behaviour of farm animals. Collect information on the growth of the animals, and forecast future growth. Monitor and assess biomass taking mortality into account.
- Apply standard feeding and nutrition protocols
Make up feed on-site. Feed animals by hand or with feeding machines according to agreed protocols. Monitor animal feeding behaviour.
- Perform water treatments
Perform regularly water testing, ensuring that water management and filtration processes follow reasonable management practices, industry standards, or commonly accepted farming practices. Record previous water contaminations, the source of contamination and contamination remedied. Take mitigation measures to guard against further contamination.
- Identify common aquatic species diseases
Identify common aquatic species diseases. Observe and describe common symptoms nd lesions.
- Monitor fish mortality rates
Monitor fish mortalities and assess possible causes.
- Observe abnormal fish behaviour
Observe, describe and monitor abnormal fish behaviour in respect of feeding, swimming, surfacing.
- Maintain aquaculture cage equipment
Maintain and clean floats and mooring ropes in cages.
- Handle waste
Handle and dispose of bio and chemical wastes in accordance with regulations.
Move through water by means of the limbs.
- Monitor fish health status
Monitor the health of fish, based on feeding and general behaviour. Interpret environmental parameters and analyse mortalities.
- Prepare for small craft operation
Prepare for personnel operation of small craft, both with licence and without licence.
- Measure water quality parameters
Measure water quality parameters: temperature, oxygen, salinity, pH, N2, NO2,NH4, CO2, turbidity, chlorophyll. Monitor microbiological water quality.
- Monitor feeding systems
Make sure that feeders, feeding system and monitoring instruments are working. Analyse feedback from the instruments.
- Perform water chemistry analysis
Perform water chemistry analysis