Profession aquaculture hatchery technician

Aquaculture hatchery technicians operate and control all aspects of the hatchery production processes, from broodstock management to pregrowing juveniles.

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Personality Type

  • Enterprising / Realistic
  • Realistic / Investigative

Knowledge

  • Green water incubation technology

    The green water incubation technology used during aquaculture hatchery.

  • Sanitation measures for aquaculture hatchery production

    Standards of sanitation and cleanliness essential to effective control of fungi and other parasites under intensive culture conditions.

  • 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.

  • Animal 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.

  • 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.

  • Plankton production

    The methods, characteristics and equipment used to cultivate phytoplankton, microalgae and live prey such as rotifers or Artemia with advanced techniques.

Skills

  • Monitor feeding systems

    Make sure that feeders, feeding system and monitoring instruments are working. Analyse feedback from the instruments.

  • 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.

  • 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.

  • 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.

  • Carry out maintenance of aquaculture equipment

    Maintain aquaculture equipment and identify equipment needs. Carry out routine maintenance and minor repairs as needed.

  • 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.

  • 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.

  • 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.

  • Monitor hatchery production

    Monitor and maintain hatchery production, monitoring stocks and movements.

  • Interpret scientific data to assess water quality

    Interpret biological and physico-chemical data to assess water quality.

  • Screen live fish deformities

    Screen for deformities in live fish including larvae

  • Cultivate plankton production

    Cultivate phytoplankton and microalgae. Cultivate live prey such as rotifers or Artemia with advanced techniques.

  • Preserve fish samples for diagnosis

    Collect and preserve larval, fish and mollusc samples or lesions for diagnosis by fish disease specialists.

  • Maintain the production of juveniles at the nursery stage

    Maintain the production of juveniles at the nursery stage using advanced high density production techniques

  • Handle broodstock

    Handle wild and cultured broodstock. Quarantine wild and cultured broodstock. Select individuals for culture and/or fattening.

  • Carry out feeding operations

    Carry out manual feeding. Calibrate and operate automatic and computerised feeding systems.

  • Operate hatchery recirculation system

    Efficiently operate a hatchery recirculation system for specified aquatic organisms

  • Monitor fish health status

    Monitor the health of fish, based on feeding and general behaviour. Interpret environmental parameters and analyse mortalities.

  • Maintain hatchery records

    Carefully maintain hatchery production records and inventory. Maintain accurate hatchery records including the preparation of health documents for the transport of juveniles.

  • Induce spawning of cultured 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.

  • Monitor water quality

    Measure water quality: temperature, oxygen, salinity, pH, N2, NO2,NH4, CO2, turbidity, chlorophyll. Monitor microbiological water quality.

  • Carry out waste water treatment

    Perform waste water treatment according to regulations checking for biological waste and chemical waste.

Optional knowledge and skills

feed broodstock fish anatomy write work-related reports make time-critical decisions lead a team create solutions to problems use aquacultural heating equipment use water disinfection equipment communicate in english at a competent user level work in inclement conditions communicate verbal instructions grade young fish environmental legislation perform spawning and fertilisation on fish eggs use oxygenation equipment cost management genetic selection programme work in outdoor conditions

Common job titles

  • Fish and wildlife technician senior (elk river senior hatchery technician)
  • Biological science technician (fisheries)
  • Aquaculture/fisheries engineer
  • Permanent fish biologist 3 * 05645-17
  • Clownfish production technician - saltwater aquaculture
  • Lead aquaculture technician
  • Engineering manager/project manager
  • Veterinarian - fish health