Ichthyology is the branch of zoology devoted to the study of fish, including bony fish (Osteichthyes), cartilaginous fish (Chondrichthyes), and jawless fish (Agnatha). According to FishBase, 35,800 species of fish had been described as of March 2025, with approximately 250 new species described each year. [1][citation needed]

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ichthyology, scientific study of fishes, including, as is usual with a science that is concerned with a large group of organisms, a number of specialized subdisciplines: e.g., taxonomy, anatomy (or morphology), behavioral science (ethology), ecology, and physiology.

The Department of Ichthyology, as part of the Museum's Division of Vertebrate Zoology, maintains one of the world’s largest and fastest-growing collection of fishes. Follow the links on this page to learn how to access the collection, to learn more about the scientific research going on here, and to learn about the history of the department.

2014年2月21日 · Beginning with basic anatomy and systematics (study of evolutionary relationships among fishes), ichthyology has broadened to include ecology (study of interactions between fish and their environment), physiology (study of internal function of fish), and behavior.

2020年1月16日 · Ichthyology is the branch of biology that focuses on the study of fish. Fish are a very wide and diverse group of animals, and ichthyology is responsible for classifying them, and studying their morphology and physiology. It also looks at how they relate to their environment. What is the purpose of ichthyology?

Ichthyology is the study of fishes. Fishes are aquatic, cold-blooded animals that have backbones and have fins and gills throughout life. This definition covers a wide variety of species and, consequently, a great diversity of forms and habits.

The meaning of ICHTHYOLOGY is a branch of zoology that deals with fishes.