CareerExplorer’s step-by-step guide on how to become a marine biologist.

Step 1

Is becoming a marine biologist right for me?

The first step to choosing a career is to make sure you are actually willing to commit to pursuing the career. You don’t want to waste your time doing something you don’t want to do. If you’re new here, you should read about:

Overview
What do marine biologists do?
Career Satisfaction
Are marine biologists happy with their careers?
Personality
What are marine biologists like?

Still unsure if becoming a marine biologist is the right career path? to find out if this career is right for you. Perhaps you are well-suited to become a marine biologist or another similar career!

Described by our users as being “shockingly accurate”, you might discover careers you haven’t thought of before.

Step 2

High School

If you're interested in becoming a marine biologist, there are a number of high school courses that can help prepare you for a career in this field. Here are some of the key courses to consider:

  • Biology: Biology is the foundation of marine biology, so taking a high school biology course is essential. This course will introduce you to the basic principles of life, including cell structure and function, genetics, and ecology.
  • Chemistry: A strong understanding of chemistry is also important for marine biologists, as it helps them understand the chemical processes that occur in the ocean. Chemistry courses will cover topics like atoms and molecules, chemical reactions, and organic chemistry.
  • Physics: Physics is another important subject for marine biologists, as it helps them understand the physical properties of the ocean, such as currents, waves, and tides. Physics courses cover topics like motion, energy, and forces.
  • Environmental Science: Environmental science courses can provide a broad understanding of environmental issues, including those related to the ocean. This course may cover topics such as climate change, pollution, and conservation biology.
  • Marine Science: Some high schools may offer specific courses in marine science, which can be a great way to get a head start on your marine biology education. These courses may cover topics such as oceanography, marine ecology, and marine conservation.

Other courses that may be helpful for aspiring marine biologists include mathematics (particularly statistics), computer science, and communications (such as writing and public speaking). In addition to taking these courses, consider getting involved in extracurricular activities that relate to marine biology, such as volunteering at an aquarium or marine science center, participating in a marine biology club, or attending marine science camps or conferences.

Step 3

Formal Education Steps

Becoming a marine biologist involves obtaining a combination of education, training, and experience in marine science. Here are the general steps to pursue a career as a marine biologist:

  • Education: Earn a Bachelor's Degree in Marine Biology, Biology, Marine Science, Oceanography, or a related field. Coursework typically includes biology, chemistry, physics, ecology, marine biology, and oceanography. Some universities offer specialized marine biology programs with coursework and research opportunities focused on marine environments and organisms.
  • Gain Experience: Seek out internships, volunteer opportunities, and research experiences to gain practical experience in marine biology. Internships with government agencies, research institutions, aquariums, and non-profit organizations can provide hands-on experience and valuable networking opportunities in the field.
  • Specialize: Consider specializing in a specific area of marine biology based on your interests and career goals. Specializations may include marine ecology, marine conservation, fisheries biology, marine mammalogy, marine microbiology, marine genetics, or marine biotechnology.
  • Graduate Education: Consider pursuing a Master's or Doctoral Degree in Marine Biology or a related field to advance your education and expertise. Graduate programs offer opportunities for specialized coursework, research, and mentorship, and can lead to career advancement in academia, research, or specialized fields within marine biology.
  • Networking: Build a professional network by attending conferences, workshops, and seminars in marine biology, joining professional organizations such as the Society for Marine Mammalogy, the Association for the Sciences of Limnology and Oceanography (ASLO), or the Ecological Society of America (ESA), and connecting with professionals in the field through LinkedIn or other networking platforms.
  • Job Search: Start searching for job opportunities in marine biology through job boards, university career centers, professional organizations, and networking connections. Consider applying for positions in government agencies, research institutions, non-profit organizations, consulting firms, aquariums, zoos, and private industry.
  • Continuing Education: Stay updated on advancements in marine biology by attending professional development workshops, continuing education courses, and conferences. Pursue certifications or specialized training in areas relevant to your career interests and goals.
Step 4

Specializations

Marine biology offers a wide array of specializations, allowing professionals to focus on specific aspects of marine science that align with their interests and expertise. Some common specializations within marine biology include:

  • Marine Biogeochemistry: Marine biogeochemists study the chemical processes and cycles that occur in marine environments. They investigate the interactions between living organisms, geological processes, and chemical elements such as carbon, nitrogen, and oxygen to understand how they influence marine ecosystems and global biogeochemical cycles.
  • Marine Biotechnology: Marine biotechnologists explore the potential applications of marine organisms and resources in various fields such as medicine, pharmaceuticals, bioremediation, and bioenergy. They investigate marine organisms for their unique biochemical compounds, genetic resources, and biotechnological potential.
  • Marine Conservation Biology: Marine conservation biologists focus on the protection and preservation of marine biodiversity and ecosystems. They work to identify threats to marine environments, develop conservation strategies, and implement management measures to mitigate human impacts such as overfishing, habitat destruction, pollution, and climate change.
  • Marine Ecology: Marine ecologists study the interactions between organisms and their environment in marine ecosystems. They investigate topics such as species distribution, population dynamics, community structure, and ecosystem function to understand how marine organisms interact with each other and their surroundings.
  • Marine Fisheries Biology: Marine fisheries biologists specialize in the study of fish populations, fisheries management, and sustainable fishing practices. They assess fish stocks, study fish behavior and reproduction, and develop strategies to ensure the long-term health and productivity of marine fisheries.
  • Marine Genetics: Marine geneticists focus on the genetic diversity, evolution, and adaptation of marine organisms. They use molecular techniques to study the genetic makeup of marine species, identify genetic variations, and investigate the mechanisms underlying genetic diversity, speciation, and adaptation in marine environments.
  • Marine Mammalogy: Marine mammalogists study marine mammals such as whales, dolphins, seals, and sea lions. They investigate various aspects of marine mammal biology, behavior, ecology, and conservation to understand their role in marine ecosystems and address threats such as habitat degradation, pollution, and human disturbance.
  • Marine Microbiology: Marine microbiologists focus on the study of microorganisms that inhabit marine environments, including bacteria, archaea, viruses, and protists. They investigate the diversity, ecology, and biogeochemical roles of marine microbes in nutrient cycling, carbon sequestration, and ecosystem functioning.
  • Marine Physiology: Marine physiologists study the physiological adaptations of marine organisms to their environment. They investigate how marine organisms cope with challenges such as temperature fluctuations, salinity changes, and pressure variations, as well as their physiological responses to environmental stressors and disturbances.
  • Marine Policy and Management: Marine policy analysts and managers focus on the development, implementation, and evaluation of policies and regulations related to marine resource management and conservation. They work with government agencies, non-profit organizations, and stakeholders to develop policies that promote sustainable use of marine resources, protect marine habitats, and address conservation challenges.
  • Marine Remote Sensing: Marine remote sensing specialists use satellite and airborne technologies to monitor and study marine environments from a distance. They analyze remote sensing data to map marine habitats, monitor oceanographic variables such as sea surface temperature and ocean color, and assess changes in marine ecosystems over time.
  • Marine Toxicology: Marine toxicologists study the effects of pollutants, contaminants, and toxins on marine organisms and ecosystems. They investigate the sources, pathways, and impacts of pollutants in marine environments, assess the toxicity of chemicals to marine life, and develop strategies for mitigating pollution and environmental contamination.
Step 5

Certifications

There are several certifications and credentials available for marine biologists, depending on their area of specialization and career goals. Some certifications and credentials that may be relevant to marine biologists include:

  • American Academy of Underwater Sciences (AAUS) Scientific Diver Certification: This certification is designed for scientists who conduct underwater research and fieldwork. It demonstrates competency in diving skills, safety procedures, and scientific diving techniques, allowing marine biologists to conduct research underwater safely and effectively.
  • Professional Wetland Scientist (PWS): Offered by the Society of Wetland Scientists, the PWS certification is for professionals involved in wetland science, conservation, and management. While not specific to marine biology, it may be relevant for marine biologists working in coastal wetlands or estuarine ecosystems.
  • Certified Fisheries Professional (CFP): Offered by the American Fisheries Society, the CFP certification is for professionals working in fisheries science, management, and conservation. It demonstrates expertise in fisheries biology, ecology, and management, which may be relevant for marine biologists specializing in marine fisheries.
  • Certified Wildlife Biologist (CWB): Offered by The Wildlife Society, the CWB certification is for professionals working in wildlife biology, conservation, and management. While not specific to marine biology, it may be relevant for marine biologists studying marine mammals, seabirds, or other marine wildlife.
  • Certified Ecologist (CE): Offered by the Ecological Society of America, the CE certification is for professionals working in ecology and environmental science. While not specific to marine biology, it may be relevant for marine biologists studying marine ecosystems, biodiversity, and conservation.
  • Association of Zoos and Aquariums (AZA) Professional Certification: The AZA offers professional certification programs for individuals working in zoos, aquariums, and related facilities. Certification options include roles such as aquarist, zookeeper, educator, and curator. While not specific to marine biology, certification through the AZA can be valuable for marine biologists working in aquariums or marine education programs.
  • Certified Marine Biologist (CMB): Some organizations, such as the National Association of Marine Laboratories (NAML), may offer certifications specifically for marine biologists. The Certified Marine Biologist designation demonstrates expertise in marine science, research, and conservation, and may be recognized by employers and institutions in the marine science field.
  • Dive Master Certification: While not a traditional certification for marine biologists, obtaining a Dive Master certification from a reputable scuba diving organization such as the Professional Association of Diving Instructors (PADI) or Scuba Schools International (SSI) can be beneficial for marine biologists conducting underwater research or fieldwork. Dive Master certification demonstrates proficiency in diving skills, safety protocols, and underwater navigation, allowing marine biologists to conduct research dives safely and effectively.
Step 6

Employment Opportunities

Marine biologists have a range of employment opportunities across various sectors. Some common employment opportunities for marine biologists include:

  • Government Agencies: Federal, state, and local government agencies employ marine biologists to conduct research, manage marine resources, and develop policies related to marine conservation, fisheries management, environmental protection, and coastal zone management. Agencies such as the National Oceanic and Atmospheric Administration (NOAA), the Environmental Protection Agency (EPA), and state departments of natural resources offer positions for marine biologists in fields such as marine science, fisheries biology, marine policy, and environmental management.
  • Research Institutions: Academic institutions, research laboratories, and marine science centers employ marine biologists to conduct scientific research, teach courses, and mentor students. Marine biologists may work as research scientists, postdoctoral researchers, or faculty members, conducting research on topics such as marine ecology, biodiversity, oceanography, and marine conservation.
  • Non-profit Organizations: Non-profit organizations and conservation groups focused on marine conservation, environmental advocacy, and ocean stewardship offer employment opportunities for marine biologists. These organizations may engage in research, education, policy advocacy, and community outreach to address marine conservation challenges such as overfishing, habitat degradation, pollution, and climate change.
  • Aquariums and Zoos: Public aquariums, zoos, and marine education centers employ marine biologists in roles such as aquarists, educators, exhibit designers, and curators. Marine biologists may be involved in caring for marine animals, designing educational programs, conducting outreach activities, and communicating scientific concepts to the public.
  • Consulting Firms: Environmental consulting firms provide opportunities for marine biologists to work on projects related to marine environmental assessment, habitat restoration, environmental impact analysis, and regulatory compliance. Marine biologists may conduct field surveys, collect data, and prepare reports for clients in industries such as energy, construction, shipping, and coastal development.
  • Private Industry: Private companies in sectors such as aquaculture, fisheries, biotechnology, pharmaceuticals, and marine technology may employ marine biologists in research and development, product testing, quality control, and environmental monitoring. Marine biologists may work for companies involved in marine resource management, marine conservation, marine engineering, or marine-based tourism.