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Institute of Technology or Polytechnic

Toi Ohomai Institute of Technology
Toi Ohomai Institute of Technology logo

New Zealand Diploma in Environmental Management - Marine Strand (Level 6)

This course is available


Level of Study



1 year

Next start date

Expected Jul 2023


Toi Ohomai Institute of Technology


Continue your studies in marine science in the Bay of Plenty's awesome outdoor environment. This level 6 diploma sets you up with more in-depth skills and knowledge and leads you into advanced study to gain your degree.

You'll build on your level 5 course knowledge of marine biology as well as study new fields such as freshwater ecology, and continue your learning in a choice of elective papers such as aquaculture, biosecurity, coral reef ecology and monitoring, PADI instructors, scientific diving or marine tourism.

This course has a strong focus on research, and environmental reporting and monitoring, meaning you get the opportunity to work alongside industry and apply your skills in real-world surveying, sampling and monitoring projects. You also learn how to design research and manage data, and understand the regulatory environment.

Depending on your choice of subjects, you could be taking off to remote offshore islands such as Tuhua or Slipper, or even Papua New Guinea* to study unique environments, monitor ecosystems or survey indigenous species. Have a look at the awesome field trips our students have taken over the last few years.

Environmental sustainability is crucial to our global decision-making. Sharp, enthusiastic graduates, who understand marine environments and how they are influenced by human activities, are essential to support informed environmental management now and in the future.

Upon successfully completing the requirements you'll receive the award of:

  • New Zealand Diploma in Environmental Management (Marine) (Level 6)

If you select the diving pathway as an option you may also receive the award of:

  • National Certificate in Diving (Foundation Skills) (Level 3)


  • freshwater or marine monitoring
  • biosecurity
  • iwi liaison
  • fisheries enforcement officers/observers on fishing vessels
  • biosecurity officers
  • diving - PADI instructors
  • specialised research projects
  • environmental reporting
  • own business enterprises
  • roles within:
    • regional councils (education, dune care)
    • NZ Customs
    • MPI
    • aquariums
    • aquaculture industry (New Zealand and overseas)


  • Research Design and Data Management
  • Environmental Reporting
  • The Regulatory Environment
  • Freshwater Ecology and Monitoring
  • Marine Ecology and Monitoring

Plus you'll choose THREE electives.

If you wish to focus on aquaculture, it is recommended you select:

  • Aquaculture 1: Systems Design and Maintenance
  • Aquaculture 2: Growth, Feeds, Nutrition and Sustainability
  • plus one other elective

If you wish to focus on diving and tourism, it's recommended you select:

  • PADI Open Water Scuba Instructors
  • Marine Tourism
  • Diving for Scientific Purposes

If you wish to focus on biology and ecology, it's recommended you select three from:

  • Biosecurity
  • Ecological Restoration
  • Coral Reef Ecology and Monitoring
  • Geology of New Zealand


Bachelor of Science (BSc), Majoring in Ecology and Biodiversity

Entry criteria

You must:

  • have completed the New Zealand Diploma in Environmental Management (Level 5), or equivalent

If you do not meet the academic requirements you may be given special admission if Toi Ohomai staff are satisfied you are capable of successfully completing the requirements.

Special admission may also apply for applicants over 20 years.

NB: If you choose to follow the diving pathway through the diplomas you'll need to enrol in the National Certificate in Diving (Foundation Skills) (Level 3) or equivalent, which gives you PADI Open Water, Advanced and Rescue Diver qualifications. The National Certificate in Diving (Foundation Skills) (Level 3) is offered at Toi Ohomai at the same time as the diploma and we'll talk this through with you when you apply.

Other Considerations: A first aid certificate is recommended. You will be required to complete one before the end of the course. If you select the diving option then you must provide a certified doctor's certificate within two weeks of the course start date stating you are fit to dive.

English Language requirements:

IELTS Academic score of 6.0 with no band score lower than 5.5; TOEFL Internet-based Test (iBT) score of 60 (with a writing score of 18); TOEFL Paper-based test (pBT) score of 550 (with an essay score of 5.0 TWE); Cambridge English Qualifications: B2 First, or B2 First for schools, or C1 Advanced, or C2 Proficiency with a score of 169. No less than 162 in each skill; OET: Minimum of Grade C or 200 in all sub-tests; PTE (Academic) score of 50 with no band score lower than 42.

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