"Fishes" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure, which enables searching at various levels of specificity.
MeSH information
A group of cold-blooded, aquatic vertebrates having gills, fins, a cartilaginous or bony endoskeleton, and elongated bodies covered with scales.

This graph shows the total number of publications written about "Fishes" by people in this website by year, and whether "Fishes" was a major or minor topic of these publications.
Bar chart showing 5119 publications over 31 distinct years, with a maximum of 446 publications in 2017
To see the data from this visualization as text, click here.