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Overview
Marine biologists study living organisms and ecosystems in seas and oceans, including physiology, habitats, species evolution and underwater interactions.
In job descriptions, look for marine biology, fish identification, ecosystem management, habitat restoration, sample analysis, scientific research, data analysis and aquaculture links.
Explore this occupation
Open in Job ExplorerWhat the work can involve
Marine biology work follows organisms, habitats and evidence from field sampling, lab experiments and data analysis. The role can study fish, microbes, ecosystems, species adaptation, habitat restoration and the effects of human activity in oceans and seas.
Skills and specializations
Useful depth includes marine biology, fish identification, organism taxonomy, sample analysis, microbiology, ecosystem management and scientific research design. Specialization may focus on aquaculture, habitat restoration, fish health, coastal monitoring or experimental physiology.
Salary context
Pay is shaped by fieldwork demands, laboratory responsibility, data analysis, research proposal work, sample diagnosis, project coordination and accountability for ecosystem or aquaculture decisions. Short field assignments and long research projects may be scoped differently.
Career paths
Development may start with sampling, classification and data work, then grow toward project biologist, research lead, habitat restoration specialist, aquaculture adviser, environmental monitoring coordinator or method specialist for marine samples.
Good to know
Check whether a vacancy is field-based, laboratory-based or research-focused. Clear adverts name the marine species, sampling methods, data tools, experiment conditions, reporting duties and whether aquaculture or conservation is central.
Editorial note
This guide gives editorial career context for this occupation. It is not official labour-market statistics or salary data.
Map overview
Click the map to search for marine biologist jobs.
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O*NET relationships
See occupations connected to this ESCO occupation in the official O*NET–ESCO mapping. The relationship type comes from the source and is not a ranking or recommendation.
O*NET relationships: 2
Zoologists and Wildlife Biologists
19-1023.00
Close relationship
The occupations are closely related, but the official mapping does not treat them as exact equivalents.
Open in O*NETBiologists
19-1029.04
O*NET occupation is broader
The O*NET occupation covers a broader field of work than this ESCO occupation.
Open in O*NETSource and method
These relationships come from the official European Commission O*NET–ESCO crosswalk.
Relationship direction: O*NET occupation to ESCO occupation.
Several O*NET occupations can point to the same ESCO occupation, and one O*NET occupation can point to several ESCO occupations.
AltoTrail preserves the source relationship type. The order is technical and does not show which occupation is best, most relevant or recommended.
AltoTrail validates and presents the source relationships without adding ranking or recommendation semantics.
Alternative labels
Occupation group
biologist (2131.4)
Source facts
| ESCO URI | http://data.europa.eu/esco/occupation/f0296b9c-764d-42ab-8de9-2a3729a9b67a |
|---|---|
| ESCO code | 2131.4.9 |
| ISCO group | 2131 |
| Concept type | Occupation |