Ichthyology
The scientific study of fish, from their anatomy, behaviour and evolution to their naming and conservation.
Also: ichthyologist
Ichthyology comes from the Greek ichthys, fish. Ichthyologists describe and name species, study how fish live and evolve, and advise on fisheries and conservation. The field grew from Aristotle's observations, through Peter Artedi, a friend of Linnaeus who is often called the father of ichthyology, to museum collections and DNA work today. India has a long ichthyological tradition, from Francis Hamilton's 1822 account of the fishes of the Ganges to the work of the Zoological Survey of India and the Indian Council of Agricultural Research's fisheries institutes.