In 1981, biologists from Allied Whale began a project to identify individual finback whales photographically. This technique enables scientists to follow an individual anywhere it may travel throughout its life by comparing fin shapes, natural color patterns, and any acquired scars that appear in photographs.
Finbacks are more difficult to photo-ID than many cetacean species.
To accurately identify an individual finback, researchers must take a series of photographs that include the dorsal fin and the right side of the animal. Finbacks are asymmetrically colored. The right side of the jaw is white with a brush of light color extending up toward the back. Finbacks also have V-shaped white markings extending from the blowholes, called chevrons. Unless the finback has noticeable scars and nicks that make it easily identifiable, researchers must have photographs showing all of these areas of the whale in order to make a positive identification.