Marine Biologist career guide
Marine Biologists study marine ecosystems and wildlife to improve understanding of oceans, biodiversity and environmental sustainability.
Career guide reviewed by Certyz · October 2026
Entry routes vary by employer and role. Compare the options below before deciding what to research next.
What does a Marine Biologist do?
Marine Biologists study marine ecosystems and wildlife to improve understanding of oceans, biodiversity and environmental sustainability.
- Laboratories
- Research vessels
- Coastal environments
- Office
- Universities
- Research institutes
- Government agencies
- Environmental consultancies
- Marine conservation organisations
How to become a Marine Biologist
Marine biologists usually qualify through university before progressing into research, conservation or environmental consultancy.
Degree in Marine Biology, Marine Science, Biology or Oceanography.
Skills and progression for Marine Biologist
- Scientific research
- Data analysis
- Fieldwork
- Communication
- Problem solving
- Senior Marine Biologist
- Research Scientist
- Principal Scientist
- Head of Marine Science
- Research Director
Check current entry requirements before deciding
This Certyz guide is a starting point. Qualifications, registration rules and apprenticeship availability can change. Confirm the latest requirements with employers, course providers, relevant professional bodies and official careers guidance.
What could the outlook mean for you?
Career opportunities can look different depending on where you live, your preferred route and the subjects and activities you enjoy. Your report brings those factors together rather than giving you a generic answer.
- Regional vacancy and salary intelligence
- Your personal career-match reasoning
- Opportunity strength and market direction
- Alternative careers worth considering