| |
Black Marlin |
Blue Marlin |
Striped Marlin |
| First dorsal fin |
Low and rounded, less than 1/2
body depth |
Medium height, equal to 1/2 -
3/4 body depth |
Pointed, greater than or equal
to body depth |
| Second dorsal fin |
Begins in front of second anal
fin |
Begins slightly behind second
anal fin |
Begins slightly behind second
anal fin |
| Pectoral fin |
Rigid in adults, more flexible
in juveniles but will not lay against
body |
Folds flat against body |
Folds flat against body |
| Pelvic fin |
Short; little change in length
with fish size |
Moderately long |
Moderately long |
| Vertical bars |
Occasionally present, may not be
obvious after death |
Normally present, may not be
obvious after death |
Normally present, remain after
death |
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