Bathing suits are not the only things that have gotten smaller in the past fifty years.

All these photos were taken on the same dock after fishing trips in the same waters. The last one was taken by post-doc Loren McClenachan, the rest were compiled by her from the records at Key West’s Monroe County Public Library.

Using the display boards as a size reference (they haven’t changed in half a century), McClenachan was able to accurately plot the shrinking size of the fish.

Read more about big fish stories getting littler — from Robert Krulwich — here.