2020 LDWF Recreational Fishing Regulations - Page 16



GENERAL INFORMATION
HOW TO MEASURE YOUR FISH
Use these guidelines to measure a fish correctly (refer to Illustrations):
1. Place the fish on its side on a flat board with the jaw closed.
2. Total Length - Measure in a straight line from the tip of the snout to the extreme tip
of the tail fin. Adjust the tail by rotating (Example 1) or by squeezing (Example 2) to
obtain the maximum length of the fish (Figure 1).
3. Fork Length - Measure in a straight line from the tip of the snout to the fork of the
tail (Figure 2).
4. Lower Jaw Fork Length - Measure in a straight line the length from the tip of the
lower jaw to the fork of the tail (Figure 3).
5. Curved Fork Length - Measure from the tip of the upper jaw to fork of tail measured
along the contour of the middle of the body (Figure 4).
6. Carcass Length – Measure the curve from posterior edge of gill opening to anterior
portion of caudal keel (Figure 4).
Figure 1
Example 1. Rotating
First Dorsal Fin
Precaudal
Notch
Second Dorsal Fin
Anal Fin
Pelvic Fin
Total Length
Caudal
Tail Fin
Example 2. Squeezing
Total Length
First
Dorsal Fin
Pelvic Fin
18
2019 Louisiana Fishing Regulations
Second Dorsal Fin

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