| Code |
Feature |
Salmon |
Sea
Trout |
| A |
Eye
relative to line from tip of nose to lateral
line |
Tends
to be below |
Usually
on or above |
| B |
Eye
relative to mouth |
Usually
level |
Mouth
beyond eye |
| C |
Scale
count - adipose fin to lateral line |
Usually
10 - 13 |
Usually
13 - 16 |
| D |
Tail
base |
Provides
positive grip |
Provides
poor grip |
| E |
Tail
profile |
Concave |
Convex
or straight |
Do
not rely on a single feature for identification
- compare all five
|