Fish play an important role in aquatic ecosystems as well as in the fight against hunger and malnutrition in humans. Fish not only serves as food but also provides important health benefits, as they are high in minerals, calcium, vitamins, and phosphorus. Fish can also aid in the control of diseases such as malaria, fever, and mosquito-borne diseases. Fish is typically high in healthy fats, providing healthcare benefits in terms of cardiovascular disease prevention. Fish is used in a number of products that are useful to humans in terms of skin treatment, wood polishing, and jewelry box covering. The development of fish species and fish industries is beneficial to people in terms of job opportunities.