![Fork-length total-length comparison Fork-length total-length comparison](https://webarchive.library.unt.edu/web/20130215134836im_/http://na.nefsc.noaa.gov/sharks/img/fltl.jpg)
Figure 1. Portrayal of measurements used in this study.
Fork length (FL) is measured from the tip of the snout to the fork
of the tail. Total length (TL) is defined as the distance from the snout to a
point on the horizontal axis intersecting a perpendicular line extending downward
from the tip of the upper caudal lobe to form a right angle.