What Aquatic Veterinarians Do and Where They Work

An aquatic veterinarian diagnoses and treats diseases in fish, marine mammals, reptiles, and other water-dwelling animals. Unlike general veterinarians who work mostly with dogs and cats, aquatic vets specialize in the unique biology and health challenges of animals that live in water. They work in zoos, aquariums, research facilities, fish farms, wildlife rehabilitation centers, and private practice.

The day-to-day work varies by setting. A vet at an aquarium might perform ultrasounds on sea turtles or treat bacterial infections in dolphins. A vet at a fish farm monitors water quality and prevents disease outbreaks in thousands of farmed fish. A research-based aquatic vet might study how pollution affects wild populations or develop new treatments for captive animals.

Most aquatic veterinarians work with a team that includes animal care staff, biologists, and other specialists. You will spend time in wet environments—tanks, pools, and outdoor enclosures—as well as in clinical spaces where you perform procedures and review lab results.

Key Takeaways

  • You must complete a four-year Doctor of Veterinary Medicine (DVM) degree from an accredited veterinary school, which requires two years of prerequisite coursework in biology, chemistry, and other sciences.
  • After earning your DVM, you need a one- to two-year aquatic veterinary residency to specialize, since general veterinary school does not provide enough hands-on training with aquatic species.
  • The American College of Zoological Medicine (ACZM) offers board certification in aquatic animal medicine, which many employers prefer or require.
  • Gaining experience with aquatic animals before veterinary school—through internships, volunteer work, or jobs at aquariums or zoos—strengthens your process and clarifies whether this path suits you.
  • Aquatic veterinary positions are competitive and concentrated in certain regions, so you may need to relocate or be willing to travel for work.

Educational Requirements: DVM and Prerequisites

The first step is earning a Doctor of Veterinary Medicine (DVM) degree from a school accredited by the American Veterinary Medical Association (AVMA). This is a four-year professional program, but before you explore, you must complete prerequisite courses. Most veterinary schools require at least two years of college-level coursework in biology, chemistry (including organic chemistry), physics, biochemistry, and mathematics. Some schools require additional courses in microbiology, anatomy, or animal science.

Veterinary school admissions are highly competitive. Schools look at your GPA in prerequisite courses, your overall GPA, scores on the Graduate Record Examination (GRE), and your experience working with animals. Having shadowed a veterinarian, volunteered at an animal shelter or clinic, or worked at a zoo or aquarium strengthens your process significantly. Many applicants take a gap year or two after their prerequisites to gain this experience and improve their candidacy.

During the four-year DVM program, you will take courses in anatomy, pharmacology, surgery, pathology, and clinical medicine. Most of this training focuses on companion animals and livestock, not aquatic species. That is why additional training after your DVM is essential for specialization.

Aquatic Veterinary Residency and Specialization

After earning your DVM, you must complete a residency in aquatic animal medicine or a related specialty. Residencies typically last one to two years and are offered by zoos, aquariums, research institutions, and some universities. During a residency, you work under the supervision of an experienced aquatic veterinarian, performing procedures, diagnosing diseases, and learning the specific care needs of different aquatic species.

Residency positions are competitive and limited in number. You explore through the Veterinary Residency Matching Program (VRMP) or directly to facilities. Some residencies are paid; others offer a stipend that covers living expenses but not a full salary. You should expect to work long hours, including emergency calls and weekend shifts, especially at facilities with live animals that require constant monitoring.

During your residency, you will gain hands-on experience with the equipment and techniques specific to aquatic medicine—anesthesia for fish, ultrasound of marine mammals, water quality testing, and necropsy (animal autopsy) of aquatic species. You will also learn how to handle and restrain different animals safely, which is critical since many aquatic animals are fragile or dangerous.

Board Certification Through ACZM

After completing your residency, you can pursue board certification through the American College of Zoological Medicine (ACZM). This certification is not required by law, but many employers—particularly aquariums, zoos, and research facilities—prefer or require it. The ACZM board exam tests your knowledge of aquatic animal medicine, surgery, and husbandry across multiple species.

To be may be able to access for the ACZM exam, you must have completed an accredited residency and have a certain number of hours of clinical experience in aquatic animal medicine. The exam itself is challenging and covers a broad range of topics. Many candidates study for several months before taking it. Once you pass, you become a Diplomate of the American College of Zoological Medicine (DACZM), which is a credential you can list on your resume and business cards.

Board certification also opens doors to leadership roles, teaching positions, and higher salaries. Some facilities will not hire you as a senior veterinarian or medical director without it.

Building Experience Before and During School

Start gaining aquatic animal experience as early as possible. While you are completing your prerequisite coursework, look for volunteer or paid positions at aquariums, zoos, wildlife rehabilitation centers, or research facilities. Even entry-level work—cleaning tanks, preparing food, or assisting with animal care—teaches you how different species behave and what the work environment is actually like.

Many veterinary schools require or strongly prefer that applicants have shadowed a veterinarian. If you can shadow an aquatic veterinarian specifically, that is ideal. Contact aquariums or zoos in your region and ask whether their veterinary staff accepts observers. Be prepared that some facilities will say no due to liability or space constraints, but persistence often pays off.

During veterinary school, seek out rotations or electives in aquatic medicine if your school offers them. Some schools partner with local aquariums or zoos for clinical rotations. These rotations are where you will decide whether aquatic medicine is truly your specialty and where you will make connections with mentors who can recommend you for residencies later.

Finding and Securing a Residency Position

Residency positions are posted through the Veterinary Residency Matching Program (VRMP) and directly on the websites of aquariums, zoos, universities, and research institutions. The process process typically opens in the fall for positions starting the following summer or fall. You will need letters of recommendation from veterinarians who know your work, transcripts, and a personal statement explaining why you want to specialize in aquatic medicine.

Competition is intense. Many candidates explore for each position, and facilities often interview multiple candidates before making an offer. To stand out, highlight specific experience with aquatic animals, demonstrate knowledge of the facility's work, and show genuine passion for the species they care for. Networking matters too—if you have worked at or volunteered with a facility, the staff may remember you and give your process extra consideration.

Be prepared to relocate. Aquatic veterinary positions are concentrated in certain areas—coastal regions, major metropolitan areas with large aquariums, and states with significant zoo or research infrastructure. If you want to work in aquatic medicine, you may need to move to where the jobs are, at least for your residency.

Career Paths and Job Outlook

Once you complete your residency and obtain board certification, you can pursue several career paths. Many aquatic veterinarians work as staff veterinarians at aquariums or zoos, where they manage the health of the animal collection and lead a team of veterinary technicians. Others work in research, studying disease, developing treatments, or monitoring wild populations. Some work in private practice, consulting with facilities or treating individual animals brought in by owners.

A smaller number of aquatic veterinarians work in government agencies like the National Oceanic and Atmospheric Administration (NOAA) or state fish and wildlife departments, managing disease in wild populations or responding to marine animal strandings. Others work for fish farms or aquaculture operations, preventing disease and ensuring the health of farmed fish.

The job market for aquatic veterinarians is smaller and more specialized than for general veterinarians. Positions are not abundant, but they do exist and are often filled by people with strong credentials and relevant experience. Salaries vary widely depending on location, employer, and experience, but are generally competitive with other veterinary specialties.

Frequently Asked Questions

Do I need to specialize in aquatic medicine right away, or can I work as a general veterinarian first?

You can work as a general veterinarian for a few years and then pursue a residency later, though this is less common. Most people who want to specialize in aquatic medicine do so when ready after their DVM, while they are still in school mode and can commit to a one- to two-year residency. If you wait, you may find it harder to step back into full-time training, but it is possible.

What if I cannot get into a residency program right away?

If you do not match to a residency in your first attempt, you can work as a veterinary associate at an aquarium or zoo while explore again the following year. This gives you more experience and makes your process stronger. Some people work in these roles for several years without formal residency training, though advancement and board certification will be limited without it.

How much does it cost to become an aquatic veterinarian?

Veterinary school costs vary by school and region, ranging from around $100,000 to over $300,000 in total debt for the four-year DVM. Residencies are usually paid or partially paid, so they do not add significantly to your debt. Many aquatic veterinarians graduate with substantial student loans, which they pay off over time from their salary.

What species do aquatic veterinarians work with most often?

It depends on the facility. Aquarium veterinarians work with fish, marine mammals, sea turtles, and invertebrates. Zoo veterinarians may work with reptiles and amphibians in addition to aquatic species. Research veterinarians might focus on a single species or group. During your residency and early career, you will likely work with whatever species your employer cares for.

Is there a difference between aquatic veterinarians and zoo veterinarians?

Zoo veterinarians care for all animals in a zoo, including terrestrial and aquatic species. Aquatic veterinarians specialize specifically in water-dwelling animals. Some people use the terms interchangeably, but aquatic medicine is a narrower focus. If you want to work exclusively with aquatic animals, you should seek residencies and positions at aquariums or research facilities rather than general zoos.