Fish biology is the scientific study of the biology, behavior, ecology, and evolution of fish species. This research area focuses on understanding the physiology, anatomy, and genetics of fish, as well as their interactions with their environment and other organisms. Fish biology also examines the impacts of human activities on fish populations and ecosystems, and seeks to develop sustainable management and conservation strategies to protect fish species and their habitats. Researchers in this field often utilize a variety of techniques, such as field observations, laboratory experiments, and genetic analysis, to address key questions in fish biology.