Marine Biology Major Jobs


Marine biologists are educated in the fields of biology, zoology, chemistry, physics, mathematics and writing. For individuals that major in marine biology in college, there are a number of different fields to pursue; marine biology is diverse and specific, ranging from occupations working with fish to occupations studying marine microbe systems.

Biological Technician

  • Biological technicians assist biologists in research and analysis. Biological technicians with a degree in marine biology typically work under a scientist such as an ichthyologist, fishery biologist or marine mammalogist. According to the Bureau of Labor Statistics, biological technicians earn approximately $18.60 per hour, and an employment growth of 18% is projected, which is faster than the national average for other areas of employment.


  • An ichthyologist is a zoologist who studies fish biology and behavior. The duties of an ichthyologist include laboratory work, researching and reading research literature, writing research results and potentially lecturing. Specialties of ichthyology are aquaculture (the study of fish farming), fisheries science (the study of human utilization of fish resources) and conservation of fish populations and habitats.

Marine Mammal Trainer

  • Marine mammal trainers train marine mammals such as whales and dolphins for aquariums and marine-focused amusement parks. A marine mammal trainer is responsible for a trained animal's mental and physical health, and is required to work in trainer teams and be on-call 24 hours a day to make sure all animals are healthy. In addition to the actual training of animals, marine mammal trainers keep up-to-date records, feed the animals, clean the animals' habitats, and do general administrative duties as asked by a superior.

Marine Microbiologist

  • Marine microbiology examines marine microbiological systems through molecular technologies and instruments. A marine microbiologist would complete both field work and laboratory work, study and write research literature, keep up with advancing microbial technologies, and work with other microbiologists to examine ocean microbe ecologies.


  • An oceanographer studies the ocean as a whole, examining the ecosystem of the entire body of water. A degree in marine biology is an important starting point for pursuing a career in oceanography, but the potential oceanographer must also possess engineering skills to complete work on marine exploratory equipment.
    Oceanographers complete research and travel often.

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