green water incubation technology
The green water incubation technology used during aquaculture hatchery.
Aquaculture hatchery technicians operate and control all aspects of the hatchery production processes, from broodstock management to pregrowing juveniles.
Competences and skills
46 ESCO relationsEssential knowledge 6 competences
Occupation specific
1 competenceSector-specific
3 competencesfish biology
The study of fish, shellfish or crustacean organisms, categorized into many specialised fields that cover their morphology, physiology, anatomy, behaviour, origins and distribution.
plankton production
The methods, characteristics and equipment used to cultivate phytoplankton, microalgae and live prey such as rotifers or Artemia with advanced techniques.
sanitation measures for aquaculture hatchery production
Standards of sanitation and cleanliness essential to effective control of fungi and other parasites under intensive culture conditions.
Cross-sector
2 competencesanimal welfare legislation
The legal boundaries, codes of professional conduct, national and EU regulatory frameworks and legal procedures of working with animals and living organisms, ensuring their welfare and health.
- Scope note
- National and EU legislation relevant to occupation, regulatory body and codes of conduct. This may include . , health and safety, risk assessment requirements and codes of conduct, especially in the areas of animal welfare, health and public health, food and environmental safety in relation with clients.
aquaculture reproduction
The techniques used to induce spawning, spawning on nests, stripping using appropriate techniques for specific species of fish, molluscs, crustaceans and others. The environmental control of spawning, the use of hormones to induce reproduction and the broodstock recruitment by genetic selection.
Essential skills and competences 23 competences
Occupation specific
0 competencesNo competences in this bucket.
Sector-specific
19 competencescarry out feeding operations
Carry out manual feeding. Calibrate and operate automatic and computerised feeding systems. Monitor animal feeding behaviour.
carry out hatchery production processes
Collect naturally spawned fish eggs, eliminate egg adhesiveness, incubate eggs until hatching, hatch and maintain newly born larvae, monitor larvae status, carry out early feeding and rearing techniques of the cultured species.
- Scope note
- Can hand strip marine flatfish, salmonids (if applicable). Can use green water incubation technology.
carry out maintenance of aquaculture equipment
Maintain aquaculture equipment and identify equipment needs. Carry out routine maintenance and minor repairs as needed.
collect broodstock
Source broodstock from fisheries and held them in maturation tanks before collecting their seeds.
condition broodstock
Incubate eggs until hatching. Assess quality of eggs. Inspect fish eggs. Remove dead, unviable, and off-colour eggs using a suction syringe. Produce eyed eggs. Hatch and maintain new-born larvae.
cultivate plankton
Cultivate phytoplankton and microalgae. Cultivate live prey such as rotifers or Artemia with advanced techniques.
enforce sanitation procedures
Ensure standards of sanitation and cleanliness essential to effective control of fungi and other parasites under intensive culture conditions. Obtain uncontaminated fish and eggs by strict sanitary procedures and avoidance of carrier fish. Supervise the isolation and identification of the agent with specific immune antiserum.
induce spawning and fertilisation on aquaculture species
Induce spawning using appropriate techniques for specific cultured species of fish, molluscs, crustaceans or others. Determine sexual maturity of broodstock, using appropriate techniques as indicated for cultured species of fish, molluscs and crustaceans. Control broodstock sexual cycle. Use hormones to induce reproduction.
maintain hatchery records
Maintain hatchery production records and inventory accurately, including the preparation of health documents for the transport of juveniles.
maintain the production of juveniles at the nursery stage
Maintain the production of juveniles at the nursery stage using advanced high density production techniques
manage animal biosecurity
Plan and use appropriate biosafety measures to prevent transmission of diseases and ensure effective overall biosecurity. Maintain and follow biosecurity procedures and infection control when working with animals, including recognising potential health issues and taking appropriate action, communicating site hygiene control measures and biosecurity procedures, as well as reporting to others.
manage capture broodstock operations
Plan and conduct wild broodstock capture and quarantine wild broodstock if necessary. Monitor the collection of larvae or juveniles from environment. Control the use of appropriate techniques for the specific species i.e. fish, molluscs, crustaceans or others.
monitor feeding systems
Make sure that feeders, feeding system and monitoring instruments are working. Analyse feedback from the instruments.
monitor fish health status
Monitor the health of fish, based on feeding and general behaviour. Interpret environmental parameters and analyse mortalities.
monitor hatchery production
Monitor and maintain hatchery production, monitoring stocks and movements.
monitor larval growth
Monitor the growth and health of the larvae.
operate hatchery recirculation system
Efficiently operate a hatchery recirculation system for specified aquatic organisms
preserve fish samples for diagnosis
Collect and preserve larval, fish and mollusc samples or lesions for diagnosis by fish disease specialists.
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.
Cross-sector
4 competencescarry out waste water treatment
Perform waste water treatment according to regulations checking for biological waste and chemical waste.
green
ensure aquaculture personnel health and safety
Make sure that health and safety procedures have been established and followed across all aquaculture facilities including cages. Ensure that personnel and general public are instructed and all work activities are carried out according to relevant health and safety regulations.
- Scope note
- Operate with due regard to personal safety and that of co-workers and the general public in accordance with relevant legislation. Tasks may include responding to emergencies in workplace, maintain operational condition of life-saving, fire-fighting and other safety systems, report and record incidents, fight fires in workplace, monitor and maintain health, safety and security of workplace, reduce risk in workplace.
interpret scientific data to assess water quality
Analyse and interpret data like biological properties to know the quality of water.
green
monitor water quality
Measure water quality: temperature, oxygen, salinity, pH, N2, NO2,NH4, CO2, turbidity, chlorophyll. Monitor microbiological water quality.
green
Optional knowledge 5 competences
Occupation specific
0 competencesNo competences in this bucket.
Sector-specific
3 competencescost management
The process of planning, monitoring and adjusting the expenses and revenues of a business in order to achieve cost efficiency and capability.
fish anatomy
The study of the form or morphology of fish species.
genetic selection programme
The methods used to plan and carry out a genetic selection programme for selected species of fish, molluscs, crustaceans and others.
Cross-sector
2 competencesenvironmental legislation
The environmental policies and legislation applicable in a certain domain.
green
fishing industry
The business model of the fishing industry, including recreational, subsistence and commercial fishing, and the harvesting, processing, and marketing sectors.
- Scope note
- Commercial fishing aims at the delivery of fish and other seafood products for consumption or for other industrial processes.
Optional skills and competences 12 competences
Occupation specific
1 competencegrade young fish
Grade young cultured species.
Sector-specific
4 competencesfeed broodstock
Feed broodstock according to nutritional needs. This will initially include live prey such as rotifers and artemia.
use aquacultural heating equipment
Operate water heating and pump equipment as appropriate such as electrical heaters, heat exchangers, heat pumps, and solar pumps.
green
use oxygenation equipment
Operate different water oxygenation systems according to requirements: surface aerators, paddle wheel aerators, column/cascade aerators, and pure oxygenation systems.
use water disinfection equipment
Operate equipment for water disinfection, using different methods and techniques, such as mechanical filtration, depending on needs.
green
Cross-sector
7 competencescommunicate verbal instructions
Communicate transparent instructions. Ensure that messages are understood and followed correctly.
create solutions to problems
Solve problems which arise in planning, prioritising, organising, directing/facilitating action and evaluating performance. Use systematic processes of collecting, analysing, and synthesising information to evaluate current practice and generate new understandings about practice.
lead a team
Lead, supervise and motivate a group of people, in order to meet the expected results within a given timeline and with the foreseen resources in mind.
make time-critical decisions
Pursue optimal time-critical decision making within the organisation.
work in inclement conditions
Work outdoors in hot or cold circumstances.
work in outdoor conditions
Can cope with the different climate conditions such as heat, rain, cold or in strong wind.
write work-related reports
Compose work-related reports that support effective relationship management and a high standard of documentation and record keeping. Write and present results and conclusions in a clear and intelligible way so they are comprehensible to a non-expert audience.