Primary Sector

To Become Aquaculture Worker (Fish farming) in Ontario: Salary, Training, and Career Outlook

by Occupations.ca Team
10 min read

Have you ever wondered who raises the rainbow trout you see in Ontario Grocery stores and restaurants? If you enjoy hands-on outdoor work, water, and caring for animals, a career as an Aquaculture Worker (Fish Farming) could be a great fit for you. In Ontario’s primary sector, you help grow healthy fish in hatcheries, land-based tanks, and open-water cages on the Great Lakes. You’ll work with a team, learn practical skills quickly, and see the direct results of your efforts in fish growth and farm performance.

Job Description

An Aquaculture Worker in Ontario supports the daily operation of fish farms. You feed and monitor fish, maintain equipment, keep detailed records, and help with harvests. Ontario’s aquaculture industry is well-established, especially for rainbow trout raised in open-water cages (e.g., Georgian Bay, Lake Huron) and in land-based recirculating aquaculture systems (RAS) and flow-through hatcheries. You may work for a commercial producer, a hatchery, a First Nation community enterprise, or a research farm.

You work closely with supervisors, hatchery managers, biologists, and veterinarians to maintain fish health and meet regulatory requirements set by the province and federal agencies.

Daily work activities

  • Start your day by checking fish behavior, oxygen levels, and water quality.
  • Feed fish using automatic systems or by hand, and adjust feeding based on temperature and fish size.
  • Inspect nets, tanks, and Plumbing for wear or damage; clean and Repair as needed.
  • Handle and grade fish to sort by size; assist with vaccination or sampling during specific life stages.
  • Keep computerized and written records of feed used, growth rates, mortalities, treatments, and environmental conditions.
  • Help with harvests: crowd fish, brail or pump into totes, and coordinate with transport and processing schedules.
  • Operate boats, winches, pumps, blowers, and aeration equipment; perform routine preventative Maintenance.
  • Follow strict biosecurity and fish-health protocols to prevent disease.
  • Work safely in all weather, using lifejackets, gloves, and other protective gear.

Main tasks

  • Monitor water quality (dissolved oxygen, temperature, pH, ammonia).
  • Feed fish and calibrate/maintain automatic feeders.
  • Clean tanks, raceways, cages, nets, and filters.
  • Grade, count, weigh, and sample fish.
  • Assist with treatments and vaccinations under Supervision.
  • Maintain nets, moorings, lines, and site infrastructure.
  • Operate boats and small engines safely.
  • Load/unload feed, handle harvest equipment, and prepare shipments.
  • Complete daily logs, inventory, and Compliance records.
  • Implement biosecurity, environmental, and Safety procedures.

Required Education

You can enter aquaculture with a high school diploma and on-the-job Training, but specialized education makes you more competitive and can accelerate your progression to senior roles (e.g., hatchery technician, feed technician, site lead). Employers in Ontario value a mix of formal education, hands-on experience, and safety certifications.

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Diplomas and pathways

Length of studies

  • Certificates: from 1 day to a few weeks per course (ongoing Professional Development).
  • College Diploma: typically 2 years.
  • Bachelor’s Degree: typically 4 years (co-op options can add paid work terms).

Where to study? (Ontario programs and resources)

Professional and industry resources in Ontario:

Tip: If you’re switching careers, combine short safety certificates with a targeted college diploma or a co-op placement. Employers highly value work-integrated learning.

Salary and Working Conditions

Salary in Ontario

Pay varies by region, employer size, and your responsibilities (hatchery, cages, RAS). Ontario’s fish farms typically pay hourly.

  • Entry-level Aquaculture Worker (no experience or new grad)

    • About $16.50–$19.50 per hour
    • Approx. $34,000–$40,500 per year at 40 hours/week (overtime/seasonal hours may increase earnings)

  • Experienced Worker/Technician (2–5+ years, added responsibilities)

    • About $20.00–$27.00+ per hour
    • Approx. $41,500–$56,000+ per year; site leads and specialized RAS or hatchery technicians can earn more

Check current Ontario wages and outlook on Job Bank:

Seasonal variation is common. During seeding, grading, and harvest periods you may work longer days (with overtime or time-in-lieu depending on the employer). Some employers offer housing or Travel allowances for remote sites.

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Working conditions

  • Environment
    • Outdoor cage sites on the Great Lakes: expect wind, waves, cold and wet conditions, and seasonal ice considerations.
    • Land-based hatcheries and RAS: indoor, humid environments with water, pumps, and filtration systems; biosecurity Controls are strict.
  • Schedule
    • Early mornings; weekend and holiday rotations because fish need daily care.
    • Seasonal peaks (spring to fall for cage culture; year-round needs in hatcheries and RAS).
  • Physical demands
    • Lifting feed bags (often 20–25 kg), handling nets, standing for long periods.
    • Working on boats and docks; slip and fall risks; PPE and safe practices are essential.
  • Safety and compliance
    • WHMIS, First Aid/CPR, lifejackets, and fall protection where required.
    • Biosecurity protocols to control disease spread; sanitation between tanks/sites.
  • Travel
    • Some roles require driving to remote sites; a valid Ontario driver’s licence is often required.

Job outlook in Ontario

Ontario’s aquaculture sector is steady, with growth potential in land-based recirculating systems and innovations in feed efficiency, fish health, and environmental performance. Demand is influenced by consumer interest in local, traceable food and by sustainability certifications. Rural and Northern regions, where many sites are located, often face labour shortages—this is an advantage if you’re willing to relocate.

Key Skills

Soft skills

  • Reliability and work ethic: fish need care every day, in all weather.
  • Teamwork and communication: coordinate feeding, maintenance, and harvest tasks.
  • Observation and problem solving: spot early signs of stress or disease.
  • Adaptability: shift between indoor hatchery tasks and outdoor cage work as needed.
  • Safety mindset: follow procedures on boats, around machinery, and with chemicals.
  • Record-keeping: accurate logs Support fish health, audits, and regulatory compliance.

Hard skills

  • Water quality monitoring: using meters for dissolved oxygen, pH, temperature, ammonia/nitrite.
  • Fish handling: grading, counting, weighing, vaccination support, humane harvest practices.
  • Equipment operation: boats, winches, pumps, blowers, aeration, feeders, basic Electrical/mechanical troubleshooting.
  • Net and cage maintenance: mending, Cleaning, predator control measures.
  • Biosecurity and sanitation: Disinfection protocols, footbaths, movement controls.
  • RAS basics (for land-based systems): filtration, degassing, oxygenation, and system checks.
  • Data and digital tools: Excel/Google Sheets, farm management software, handheld meters and sensors.
  • Regulatory awareness: understanding of site-specific environmental monitoring and fish-health requirements.

Advantages and Disadvantages

Advantages

  • Meaningful, hands-on work: you directly contribute to Ontario’s local food supply.
  • Fast skills development: you see immediate results in fish growth and farm performance.
  • Outdoor lifestyle: ideal if you enjoy physical work and time on the water.
  • Opportunity to advance: move into hatchery technician, feed technician, site lead, or RAS specialist roles.
  • Year-round employment: especially in hatcheries and indoor RAS sites.
  • Growing emphasis on sustainability: opportunities to learn new technologies and best practices.

Disadvantages

  • Weather exposure and physical demands: cold, wet, and repetitive tasks at times.
  • Non-traditional hours: weekends and holidays; on-call rotations for system alarms.
  • Rural locations: relocation or commuting may be required; limited public transit.
  • Biosecurity and regulation: strict protocols that can slow down daily routines.
  • Seasonality: work intensity and income can fluctuate around stocking and harvest periods.
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Expert Opinion

If you’re just starting out in Ontario, you can enter the field with a strong attitude and safety certificates while you build experience. That said, a targeted college diploma—especially Fleming College’s Aquaculture program—will set you up for faster progression and a wider choice of roles (hatchery, cage culture, or RAS). Employers increasingly value candidates who can combine basic fish husbandry with water-quality analysis, mechanical aptitude, and data literacy.

To stand out:

  • Earn key safety credentials early (First Aid/CPR, WHMIS, boat cards) and keep them current.
  • Get comfortable with handheld meters and spreadsheets; being the person who can troubleshoot an oxygen drop or a pump issue calmly is invaluable.
  • Seek co-op or seasonal contracts; most full-time opportunities arise from students and seasonal staff who prove themselves during busy periods.
  • Learn about Ontario’s regulatory landscape and fish health. Review the Government of Ontario’s aquaculture page (https://www.ontario.ca/page/aquaculture) and CFIA’s Aquatic Animal Health Program (https://inspection.canada.ca/animal-health/aquatic-animals/eng/1299156802078/1299157145346). Understanding the “why” behind protocols earns trust on site.
  • Network with the Ontario Aquaculture Association (https://www.ontarioaquaculture.com). Attend events, ask for farm tours, and follow job postings.

With the right mix of reliability, curiosity, and practical skills, you can build a stable and satisfying career in Ontario fish farming—one that grows with new technologies and the province’s demand for sustainable, local protein.

FAQ

Do I need a special licence to work on a fish farm in Ontario?

You personally do not need an aquaculture licence to be an employee, but farms must be licenced and comply with provincial and federal rules. Employers will train you on site-specific permits and protocols. To boost employability, get your Pleasure Craft Operator Card (for small boats) and consider Small Vessel Operator Proficiency (SVOP) if you will crew on commercial vessels:

Which fish species will I mostly work with in Ontario?

Ontario’s commercial aquaculture primarily raises rainbow trout. You may also encounter tilapia and other freshwater species in land-based recirculating systems, and you will work with different life stages (eggs, fry, fingerlings, market-size fish) depending on the site (hatchery vs grow-out).

Can I start in aquaculture if I’m coming from another trade or industry?

Yes. Many successful workers come from Construction, landscaping, farming, or mechanical trades. Highlight your transferable skills—equipment operation, carpentry, mechanical/electrical troubleshooting, and safety training. Add WHMIS and First Aid/CPR, and pursue a short boat-safety course to transition smoothly.

What regulations affect my day-to-day work?

You’ll follow strict biosecurity and environmental monitoring protocols. Ontario regulates aquaculture sites and practices, and the CFIA oversees aquatic animal health. You’ll learn sanitation steps, fish-movement rules, and incident reporting. Start here:

How can I move up to management or specialized roles?

Build depth in three areas:

  • Technical: RAS operation, water-quality analytics, fish health sampling, data systems.
  • Leadership: train new staff, coordinate shifts, and own a key process (e.g., grading schedules).
  • Education: complete a college diploma (e.g., Fleming Aquaculture) or a related BSc (e.g., Guelph Marine and Freshwater Biology). Keep certificates current and attend Ontario Aquaculture Association events (https://www.ontarioaquaculture.com) to expand your network and knowledge.

By focusing on essential skills, safety, and continuous learning in Ontario’s aquaculture context, you can create a strong, future-oriented career as an Aquaculture Worker in fish farming.

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