Mariculture (Marine Aquaculture) Online Course

Certificate Courses for Adult Learners

Marine Biology Courses



Self Paced

Flexible Study Schedule


See what other Careerline IT students said...

The range of topics and the assignment questions provide not only a method to ensuring students review a range of resources but also ensure that a number of aspects in marine biology are engaged with.

W.A. True

Aquarium Management Graduate

I was so impressed I am going to do another course and maybe more after that!

John Andrews

Marine Biology Graduate

The customer service and support was totally unexpected. help is always on hand! I even changed my mind on my course and the level of support was phenomenal.

F. Nazz

Careerline Graduate

Is this course for me?

This course is for best for adult learners who:

Need a flexible day/night study schedule

Are planning for a new career in this field or are just interested.

Want a stepping stone before committing expensive and years-long education.

In this course you will learn salt water aquaculture techniques for a range of species.

In this unique online course you will learn the farming of salt water species of fish, shellfish, seaweed and other marine products. Learn to make plans and manage the farming of a broad variety of marine life. Self-paced learning, expert tutors, start anytime, 100 hours of learning to give you a sound foundation in marine aquaculture.

The term “Mariculture” refers to a sub-category of Aquaculture that deals specifically with Marine Aquaculture, defined by the FOA as ‘The culture of marine organisms, both plants and animals, in an aquatic medium or environment which may be completely marine (sea), or sea water mixed to various degrees with fresh water. This definition would include both the sea and inland brackish-water areas. These can be freshwater or salt water organisms, or have development phases in both types of waters.”

Course Aims:

  • Explain general mariculture production systems
  • Discuss the factors involved in setting up a business
  • Evaluate factors that need to be considered when choosing marine species for aquaculture in your region.
  • Explain the commercial production of finfish
  • Explain the commercial production of crustaceans
  • Explain the commercial production of molluscs
  • Explain the use and production of Seaweeds and Aquatic Algae
  • Discuss the role of echinoderms in mariculture. Explore the pharmaceutical uses of marine organisms
  • Explain general diet formulation and feeding
  • Describe issues related to the health management of marine animals used in aquaculture.


There are 11 lessons in this course:

Aquaculture Production Systems

  • What is Mariculture
  • Purposes of mariculture
  • Classification of culture systems
  • Extensive production (Ep)
  • Intensive production (Ip)
  • Classifications based on system input
  • Open systems (off-shore and near-shore)
  • Semi-closed systems
  • Closed systems (on shore)
  • Common culture method for each marine category
  • Cage culture
  • Cage design: Floating flexible, floating rigid, semi-submersible and submersible
  • Hanging Culture: Raft and suspended trays
  • Long-line culture
  • Vertical or rack culture
  • Bottom culture: Bottom sowing and cultch lines
  • Stone, stake culture, net and umbrella culture
  • Semi-enclosed: flow through tanks
  • Closed Systems (CAS): Recirculating, raceways, and inland ponds

Starting a Marine Aquaculture (Mariculture) Business

  • Economics of establishing and running a farm
  • The need for a feasibility study
  • Economic analysis
  • Requisites for establishing a business
  • Factors to consider
  • Industry competition
  • Availability of leased and quotas
  • Economy of scale
  • Site selection and water quality
  • Properties of salt water
  • Water quality management
  • Environmental impacts
  • Food chain problems
  • Using wild broodstock
  • Nutrient pollution
  • Chemical pollution
  • Spreading pathogens
  • Escapes
  • Habitat effects
  • Managing environmental impacts
  • Improving the genetic quality of fish
  • Biotechnology

Choosing a Species

  • Choosing a marketable species
  • What information is available
  • Understand your competition before selecting a species
  • Common mariculture species
  • Selection criteria
  • Climate
  • Water resource
  • Finance
  • Scale of operation
  • Market demand and access
  • Availability of animals
  • Risk considerations
  • Product markets
  • Product, price and promotion


  • Industry overview
  • Types of mariculture
  • Broodstock/seed supply
  • Growout
  • Commonly cultured species
  • Tuna
  • Atlantic salmon
  • Steelhead Salmon (Saltwater rainbow trout)
  • Yellowtail (Japanese Amberjack)
  • Sea Bass
  • Gilt-head sea bream
  • Water quality management


  • Industry overview
  • Types of mariculture
  • Broodstock/seed supply
  • Growout
  • Commonly cultivated species
  • Penaeid shrimp (prawn)
  • Graspid Crabs
  • Lobster

Molluscs and Echinoderms

  • Industry overview – molluscs
  • Types of bivalve culture
  • Broodstock/seed supply
  • Growout
  • Abalone
  • Oysters
  • Cultured mussels
  • Scallops
  • Giant clams
  • Industry overview – echinoderms
  • Types of mariculture
  • Breedstock/seed supply
  • Growout
  • Commonly cultivated species
  • Sea Urchins
  • Sea cucumbers

Seaweeds and Aquatic Algae

  • Industry overview
  • Types of mariculture
  • Broodstock/seed supply
  • Landbased cultivation systems
  • Tanks
  • Ponds
  • Sea cultivation
  • Farming methods
  • Vegetative cultivation
  • Cultivation involving a reproductive cycle
  • Commonly cultivated species
  • Laminaria japonica
  • Porphyra sp.
  • Undaria sp.
  • Eucheuma seaweed


  • Pharmaceutical value of marine organisms
  • Examples of species used in marine biotechnology
  • Sea urchin
  • Sea cucumber
  • Marine sponges
  • Seaweeds (algae)

Diet Formulation and feeding

  • Feeding strategies
  • Nil input
  • Water fertilisation
  • Supplementary feeding
  • Complete diet feeding
  • Fish feed
  • Feeding and feed components
  • Environmental problems associated with fish feeding
  • Mycotoxins in feeds
  • Aflatoxins
  • Ochratoxins
  • Fumonisins
  • Trichothecenes
  • Managing mycotoxins in prepared feeds

Health Management – Diseases and Parasites

  • Causes of disease
  • Health management and mitigation strategies
  • Treatment of diseases and parasites
  • General principles
  • Common signs that fish are unhealthy
  • Common diseases of finfish
  • Emerging pathogens
  • Common diseases of crustaceans
  • Common diseases of bivalves (molluscs)

Harvest and Post Harvest Handling

  • Examples of product forms
  • Harvest/post-harvest handling of selected species

When you have completed the lessons of your Certificate course, you will be given the option of taking the optional exam. It's okay if you don't want the exam, we still issue your Careerline Certificate. For Advanced Certificates however, the exam is compulsory (per module) and are included in the course fee.

Your Tutor

Peter Palma

B.Sc. Fisheries, MSc (candidate), Aquaculture/Marine Tutor

Aquaculture science and teaching are the two things Peter is most passionate about. He is currently a Master of Science candidate, studying the reproductive biology of groupers. He holds a Bachelor’s degree in Fisheries science with a specialization in aquaculture. His field work experiences include broodstock and hatchery management of marine fish species, and disease monitoring of cultured organisms. Over the years, Peter visited fish farms in Australia, Canada and the Philippines, and learned first-hand how aquaculture operation is being done all over the world.

Frequently Asked Questions

Can I pay in installments?

Yes! We offer great payment plans, however full payment up front is the cheapest. You can choose the best payment plan for you from the course page, or call us on 07 55368782 to talk to one of our course consultants for a custom plan.

Can I study from anywhere in the world?

We have many international students. Careerline's range of courses are suitable for any one, anywhere in the world.

Do I get a discount if I enroll in a second course?

Yes. You may claim a 5% fee discount when you enroll in a second course, and a further 10% off a three-course package.


Do I have to sit an Exam?

No. If you are enrolled in a Certificate course (100hrs), the exam is optional. You will be issued with a certificate which proves that you are competent in all units, if you choose not to sit the exam.

Do you have set start dates?

There are no set start dates, you may start at any time. Our courses are all self-paced. As our home page says, ‘Courses for Anyone, Anywhere, Anytime’. ‘Anytime’ includes the start time of your choice. However, we do encourage our students to submit assignments on a regular basis. Wherever possible, we suggest developing a study routine.

How It Works

1. Learn Online

Get access to your course content anywhere, anytime and study at your own pace.

2. Get Help & Support

Connect with other like-minded students and get help from the teacher whenever you have a question.

3. Receive Certificate

Graduate from your course knowing that you have what it takes to reach your next step.

Course Summary

  Learn different marine aquaculture systems

  Fin fish, crustaceans, seaweed and molluscs.

  Diet, health and feeding.


Full Fee $595.00 incl GST - Best Value!
Payment Plan From $50/week incl GST
Duration 100 hrs (12 months)
Exam Optional
Qualification Certificate
Tutor Support Yes unlimited by email