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Hatchery Assistant

Mook Sea Farm Walpole, ME

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Mook Sea Farm is seeking a full-time Hatchery Assistant to work in our oyster hatchery, located in Walpole, ME. We rear the Eastern oyster (Crassostrea virginica) from egg to adult size. This is an opportunity to be a part of a team of people who are passionate about oysters and the future of aquaculture in Maine. This role is an entry-level laborer position.


321 State Rt 129, Walpole, ME 04573


$16 - $18 per hour

Job type:


Number of openings for this position:

1 - 2


  • 8–10 hour shifts
  • Generally, Monday - Friday
  • Occasional weekend shifts
  • Working Holidays (Ability to “Bank” them for later use)


  • Health insurance
  • Paid time off
  • Dental insurance
  • Vision insurance
  • Retirement plan
  • Health savings account

Essential Functions

As a Hatchery Assistant, your primary responsibilities are to aid in the care of millions of larval and juvenile oysters growing in a variety of culture systems. Duties will include cleaning and maintaining tanks/equipment and carrying out daily routines and completing SOPs/checklists. Mook Sea Farm continually strives to improve the quality, efficiency, capacity, and diversification of microalgae and seed production. Hatchery assistants will have the opportunity to be involved in research and development throughout the production season and are expected to carry out daily tasks with an eye towards continuous process improvement and scientific observation and discussion. In the offseason of the hatchery, the Hatchery Assistant will learn about the other work on the farm by participating in our grow-out operations on our leases on the Damariscotta River.

Education and Experience

Prior experience in a hatchery or relevant education and related experience is not required. We can train the right person who has an interest in the work we’re doing, a positive attitude, and great attention to detail. This is a great opportunity to learn more about large-scale oyster farming!

Knowledge, Skills, and Abilities

  • Teamwork & collaboration, as well as the ability to take ownership of tasks and work independently.
  • Understanding of scientific method and data collection.
  • Ability to follow strict protocols.
  • Clear and direct communication.
  • Ability to think critically and systematically and problem solve.
  • Previous experience with basic carpentry and/or plumbing is a plus.
  • A valid driver’s license is required.
  • Willingness to work in a variety of challenging conditions.

Physical Requirements

This position requires an average of eight hours per day of standing and moving, and requires physical strength, balance, hand-eye coordination, and stamina necessary to complete jobs in various areas of the hatchery. The position requires an ability to lift push and/or pull up to 50 pounds, and the manual dexterity as needed to operate a variety of equipment. Should be able to tolerate exposure to typical noises associated with the hatchery.

Schedule and Pay

This is a full-time, year-round job with hourly pay, scheduled for Monday – Friday typically (weekend work is required on occasion), 8 am-4 pm is the goal. Daily shifts are approximately 8 hours, however, this position requires a flexible work schedule that may vary in the number of hours worked in a day, or in which the stop times may vary because we are responsible for live-oysters. Holiday work is occasionally required on a rotation with other hatchery personnel and employees can "bank" holidays for future Paid Time Off.

How to Apply

To apply, please send a cover letter, your resume, and two references to Ethan Wegrecki at [email protected] Applications are accepted starting immediately and will be reviewed as they are received. Mook Sea Farm is an Equal Opportunity Employer.

COVID-19 precautions

We follow state and federal CDC guidelines regarding mask-wearing, social distancing, and sanitizing. All new employees must be vaccinated against COVID-19 and are expected to present their Vaccine Record Card on their first day of employment.