Marine biologists help us understand and protect the ocean. They carry out research that ranges from counting fish on coral reefs to studying the effects of ocean warming. Their work informs conservation plans and environmental policy across Australia. Conduct field research – Go to sea or the shore to collect samples and observe marine life in the wild. Analyse data – Study field and lab data to understand marine ecosystems and the impact of human activity. Study marine organisms &...

Deep knowledge of marine ecosystems and species Research design and data analysis Fieldwork and sample collection Scientific writing and reporting Statistical analysis and data software Strong communication and presentation skills Problem-solving and critical thinking Attention to detail Teamwork and cross-disciplinary collaboration Passion for marine conservation

How to Become A Marine Biologist

Pathway to a career as a Marine Biologist

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What is a Marine Biologist

A marine biologist studies every form of life in the sea, from tiny coral polyps to massive blue whales. They uncover how marine ecosystems work and how to protect them. If you love the ocean, this is a career where passion meets real scientific purpose.

The job is split between fieldwork and lab research. In the field, you might be diving on coral reefs, tagging sharks, or collecting samples from a research vessel. Back in the lab, you analyse that data and share findings with the scientific community.

Marine biologists also play a big role in conservation. They work with government bodies and environmental groups to protect marine habitats and develop ocean policy. Their research is read by scientists and policymakers across the world.

It is a tough but deeply fulfilling path. You will need a science degree and a love of lifelong learning. The reward is a career that helps keep Australia’s oceans healthy for future generations.

Career Outlook for Marine Biologist

Marine biology is a small but growing profession in Australia. Around 760 people work in this field, with strong future demand forecast (Jobs and Skills Australia, 2025). About 74% work full-time, averaging 41 hours per week. Median weekly pay is $1,948 (Jobs and Skills Australia, 2025).

The median age of a marine biologist in Australia is 41. The field is fairly balanced by gender, with 44% identifying as female (Jobs and Skills Australia, 2025). Most marine biologists work in research, government, or education. Queensland, Western Australia, and New South Wales have the highest numbers of jobs.

The ocean faces serious pressure from climate change, pollution, and overfishing. This is driving demand for skilled scientists who can study and help protect marine life. A career in marine biology offers job security alongside a real sense of purpose.

On this Article

Introduction

Average Salaries

Resources

How to Become a Marine Biologist in Australia

Step 1: Complete a Bachelor of Science in Marine Biology or Marine Science

Enrol in a Bachelor of Science with a major in marine biology or marine science at an Australian university. The degree takes three years full-time and covers ecology, genetics, and statistics. Strong Year 12 results in biology, chemistry, and maths are typically needed for entry.

Step 2: Build Practical Field Skills

Gain experience through volunteer work or research assistant roles with AIMS, CSIRO, or state government bodies. Get a scuba diving cert such as PADI Open Water Diver early in your studies. It is a major advantage for field-based roles. First aid and boat safety certs are also often required.

Step 3: Complete an Honours Year

After your bachelor’s degree, complete a one-year Honours program in your university’s science faculty. You will design and run your own research project, analyse results, and write a thesis. Most research roles and all PhD programs expect at least an Honours degree.

Step 4: Pursue Postgraduate Study

Pursue a Master of Science in Marine Biology to go deeper into a specialist area. This degree takes one to two years full-time. A Doctor of Philosophy (PhD) takes three to four years and adds new knowledge to the field. Apply for an Australian Government Research Training Program (RTP) grant to help with costs.

Step 5: Join the Australian Marine Sciences Association

Become a member of AMSA, Australia’s peak body for marine scientists. Membership gives you access to the annual AMSA conference, a network of employers, and career resources. Student membership is available at a lower rate. Get involved in your state AMSA branch to build local connections.

What does a Marine Biologist do?

A marine biologist’s day is full of variety. In the morning, they might prep for a dive to survey a coral reef. Or they might board a research vessel to collect water samples. Back on shore, they head to the lab to study what they found. They write up findings, run experiments, and work with other scientists on conservation projects. They may also give talks, attend conferences, or advise government bodies on ocean policy. No two days look quite the same.

Tasks

Marine biologists help us understand and protect the ocean. They carry out research that ranges from counting fish on coral reefs to studying the effects of ocean warming. Their work informs conservation plans and environmental policy across Australia.

Conduct field research – Go to sea or the shore to collect samples and observe marine life in the wild.
Analyse data – Study field and lab data to understand marine ecosystems and the impact of human activity.
Study marine organisms – Look at the anatomy, physiology, and behaviour of species from plankton to whales.
Develop conservation strategies – Help design and run programs to protect marine environments and at-risk species.
Work with other scientists – Team up with ecologists, oceanographers, and other experts to share knowledge.
Educate the public – Run outreach and education programs about marine conservation and ocean health.
Write research papers – Publish findings in scientific journals to add to the body of marine science knowledge.
Monitor environmental changes – Track the effects of climate change, pollution, and other pressures on marine life.

Skills for Success

To do well as a marine biologist, you need a strong base in biology. A genuine love of the ocean helps too. Research and data skills are essential, as you will spend a lot of time gathering and interpreting field data. Clear communication is vital for sharing your work with both scientists and the public.

You also need to be a good problem-solver, as marine environments throw up surprises. Physical fitness helps, since fieldwork can be demanding. A passion for conservation and a drive to keep learning will carry you far.

Skills & Attributes

Deep knowledge of marine ecosystems and species
Research design and data analysis
Fieldwork and sample collection
Scientific writing and reporting
Statistical analysis and data software
Strong communication and presentation skills
Problem-solving and critical thinking
Attention to detail
Teamwork and cross-disciplinary collaboration
Passion for marine conservation

Average Salaries

Marine biologists in Australia earn around $101,000 a year on average (Jobs and Skills Australia, 2025). This is based on median weekly pay of $1,948 per week. Entry-level roles start around $65,000. Senior researchers can earn up to $140,000.

min $65 K

max $140 K

av $101 K

Resources For Marine Biologists

About the author

Laura Atkinson

Explore career guides by Laura Atkinson. Practical how-to-become advice on qualifications, skills, salary and job outlook across Australia.