Fish biologists study and monitor fish populations in natural environments, farms, and aquariums. They may also conduct laboratory work and research, and work for private companies, government agencies, and academic institutions. Their responsibilities include monitoring wild fish populations, conducting water quality studies, and developing appropriate facilities for raising fish. Continuing education and career development are also important in this field.
A fish biologist works in natural environments such as fisheries and lakes, as well as farms and aquariums to study and monitor fish populations. Careers in this field can also include laboratory work, depending on the type of research a fish biologist performs. Some private companies, government agencies, and academic institutions have openings for fish biologists on their faculty and staff, creating a myriad of different opportunities for people with an interest in this area of the sciences. You usually need to have at least a bachelor’s degree to start applying for jobs of this nature.
One aspect of a fish biologist’s job may involve counting and monitoring wild fish populations in regions where there are health concerns. This could include traveling with fishing boats to watch fishing practices, collect samples and observe crews for signs of illegal fishing activity. The biologist may also conduct water quality studies, botany surveys, and other research to explore interactions between fish and their environment and identify issues of interest.
In the event of a problem such as fish deaths, a sudden decline in catches, or a drastic change in the natural environment, fish biologists may be called in. They can conduct research to learn more about the cause of the event and the impact on fish populations and other organisms. This could include helping environmental authorities resolve an issue and developing recommendations to prevent future incidents. Fish deaths, for example, could be the result of chemical releases from an industrial plant, which may need to tighten its pollution control protocols.
Aquaculture facilities that raise fish for food and other purposes also need fish biologists. They can develop appropriate facilities and procedures for handling the fish, as well as monitoring the health of the populations. In aquarium settings, a fish biologist may work with rare and important specimens to keep them healthy for observation and study. Work may also include public outreach and education on museum premises, where members of the public can learn about fish through demonstrations and workshops.
Responsibilities can be very varied and can involve activities ranging from necropsies of dead fish to chemical analysis of water samples. Depending on where a fish biologist works, there may be continuing education expectations to accompany the field. You may also be required to publish papers, present at conferences, and demonstrate other evidence of career development to be considered for promotions and tenured positions.
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