Study life in the ocean, mostly fish and plankton rather than dolphins, and spend years on seasonal contracts before anything permanent.
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Pay, the path, pros and cons and the facts on one printable page. Counsellors: send it to a student from your own email in one click.
The median pay is about $76,780 a year. Across everyone in the job it runs from about $49,100 at the lower end to about $126,440 at the upper end. The source is listed under Sources at the end of this page.
4 to 10 years after high school, on the usual route.
$30,000 to $105,000 all in for tuition, fees, exams and kit. Living costs are not counted.
No. There is no license to hold, though many employers still ask for training or a certificate.
Moderate demand nationally, from government outlook data. Demand varies by region, so check your area.
Or read the whole thing here
What you earn and what it costs to get there.
Median
$76,780
Bottom tenth
$49,100
Top tenth
$126,440
The federal wage survey has no line called marine biologist. These figures come from zoologists and wildlife biologists, where the median is $76,780 a year and the bottom tenth earn $49,100 or less. The top tenth earn $126,440 or more. These are full-year figures, so seasonal field contracts that last only part of the year pay less over a year.
$49,100 to $61,180
The bottom tenth and bottom quarter of zoologists and wildlife biologists, as a full-year rate, 2025
Seasonal technician contracts pay at this end, and only for part of the year. Counting salmon, sorting plankton, tagging turtles, sampling water. No benefits, sometimes bunkhouse housing, and it ends in October. Almost everyone in this field does two or three of these before anyone offers them something permanent.
$40,736 to $50,460
Grades 5 and 7, step 1, of the federal GS (General Schedule), where graduates usually start, 2026
These are the rates for areas with no higher local rate, and expensive parts of the country add a percentage on top. NOAA (the National Oceanic and Atmospheric Administration) and other agencies post every job, with its pay, on the federal government's hiring site.
Roughly, all in
$30,000 to $105,000
Tuition, fees, exams and kit. Not rent, food or travel
The low end is two years at a community college then two years finishing a bachelor's degree in state, which is enough for technician and field work. The high end adds an unfunded master's degree, which is the part you should try hardest not to pay for. Funded places, where you teach undergraduate laboratory classes in exchange for waived tuition and a small stipend, are normal in this field, and a doctorate is usually paid rather than bought. Scientific diving training costs a few hundred to a few thousand dollars if your school does not cover it.
Do not pay for a science master's degree if you can avoid it. Funded spots, where you teach undergraduate labs in exchange for tuition and a small stipend, are normal in this field. Ask about funding before you accept any offer.
Federal health insurance and pension
Government scientists get federal or state health coverage and a pension.
Public Service Loan Forgiveness
Ten years of payments while working for a government agency or a nonprofit can cancel the rest of your federal student loans.
Sea pay and berthing
On research cruises you are fed and housed, and some agencies add a daily allowance for days at sea.
Gear and training paid for
Dive certification, boat handling, survival suits and safety courses come out of the employer's budget.
The exact path from high school to qualified.
A bachelor's degree gets you seasonal work. A master's degree is what usually turns seasonal work into a job with health insurance.
High school
Grades 11 and 12
Biology, chemistry, physics and statistics. Volunteer at an aquarium, a hatchery or a beach cleanup, and learn to swim well.
Bachelor's degree
4 years
Marine biology, biology or ecology. Take statistics and a coding course even though nobody tells you to. Get on a boat every summer you can.
Technician seasons
1 to 3 years
Two or three field or lab contracts. This is the real entry exam, and it is how you meet the people who later hire you.
Master's degree
2 to 3 years
Two to three years on one specific question, usually funded by teaching. The normal price of a permanent research or agency job.
Doctorate, only if you want to run research
5 to 6 years
Needed to lead your own lab or teach at a university. Funded with a stipend, and the job market at the end is tight.
Biology
Pay attention to ecology, genetics and anything about populations.
Statistics
Modern marine biology is a data job. This course separates people more than biology does.
Chemistry
Ocean chemistry, water quality and lab work all rest on it.
Computer science
Writing code in Python to handle survey data makes you far more hireable.
English
Reports, permits and grant applications are most of a senior scientist's week.
No state licenses the title of marine biologist, so anyone can use it. Federal hiring is stricter: biology positions run on published qualification standards that require a degree with a set block of biological science credits, and your transcript is read against them line by line. Field work adds its own gates. Research diving is done under a scientific diving program, usually run by your university or agency and following the standards of the American Academy of Underwater Sciences, and small boat operation needs agency training before you take the wheel.
Almost every coastal state university runs a marine program, and inland universities with a field station can be just as good.
Scripps Institution of Oceanography
Part of the University of California San Diego. Undergraduate marine and earth science majors, master's programs and a doctorate, plus paid summer research placements.
Coastal state universities
Florida, California, Washington, Maine, the Carolinas, Oregon, Hawaii, Texas and the Great Lakes states all have strong programs with their own research boats.
Anywhere with a marine field station
A semester at a field station, even through another school, is worth more on a job application than the name of the university.
Things you don't need, but that help.
Scientific diving authorization
Not the same as recreational scuba. Needed for most coral, kelp and reef research, and usually arranged through your school.
Small boat operator training
Agencies will not let you drive a research skiff without it, and it appears on job postings.
Sea survival and first aid
Short courses that are required before you board a working research vessel.
Statistics and coding
The skill that turns a seasonal technician into someone worth keeping through the winter.
Species handling permits
Tagging protected species, handling marine mammals and electrofishing each need specific authorization.
The Hutton program
A summer fisheries science internship for high school students, matched with a working scientist. Start here if you are still in school.
The Hollings Scholarship
NOAA (the National Oceanic and Atmospheric Administration) says it funds more than 120 undergraduates a year with tuition support and a paid summer internship.
Aquarium or hatchery volunteering
Unglamorous animal care work that proves you show up and follow protocol.
Sea legs
Find out whether you get seasick before you build a career around boats. Some people never stop.
Not every marine biologist stays at the bench or on the boat. The Sea Grant Knauss Marine Policy Fellowship places graduate students in federal offices in Washington for a year, working on ocean policy and legislation, and many of them never go back to research. Environmental consulting firms, fishery management councils and conservation nonprofits all hire people who understand both the science and the rules.
Day to day, pros and cons, where you'd work.
Up at five because the survey runs on the tide, not on you. Deploy nets or instruments, haul them back, then sort, measure, weigh and record whatever comes up for six hours straight in the wet lab. Afternoon is data entry and fixing the gear you broke this morning. Ashore, the same person spends the winter cleaning that data, running statistics and writing the report that decides whether a fishery opens next season. The ratio is roughly one month on the water for every six at a desk.
The good
The hard parts
Things people don't tell you.
The large employers are fisheries agencies. That means counting cod, salmon, pollock and shellfish, sampling plankton and measuring water chemistry. Marine mammal jobs exist, but there are very few of them and many applicants for each.
O*NET OnLine (the Department of Labor's occupation database) counts about 19,500 zoologists and wildlife biologists in 2025 and projects average growth of 3 to 4 percent between 2025 and 2035, with about 1,400 job openings a year. That is worth knowing before you pick the major, not after.
Every list is built from the same numbers shown above, so you can see where this career sits next to the others.
Life and lab first, then the rest of the field. See every career in science and environment.
Last checked October 2026. Pay figures are typical full-time annual amounts in United States dollars, based on Bureau of Labor Statistics wage data and published pay scales. They vary by state, employer and experience. Tuition is for in-state students at public schools unless the card says otherwise. How every figure on this site is sourced and checked.
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