Although it is possible to get a job as a marine biologist with just a bachelor's degree, such jobs likely will be low-paying technician positions with little advancement opportunities. Some positions in the field are available with a master's degree, but most marine biologists have a doctoral degree.

To work as a marine biologist, you typically need to: have a high school diploma or equivalent; complete a bachelor's degree in marine biology or a related field; and. complete a master's or doctoral degree in marine biology.

Marine biologists must complete at least a bachelor's degree, which takes about four years. Marine biologists who pursue master's degrees may take an additional two to three years to complete their education, and earning a PhD will take up to six years more. What does a marine biologist earn?