How do the pectoral fins of Kajikia albida compare regarding retraction ability?
Answer
They are generally not fully retractable against the body contour.
The fin structure of the White Marlin includes pectoral fins that are long and curved. A defining characteristic noted for hydrodynamic performance is that these pectoral fins are not completely retractable against the body when the fish is swimming quickly. This contrasts with the profiles of some other species where fins can tuck tightly into specialized grooves to reduce drag during sustained high-velocity movement. The relative fixity of the White Marlin's pectoral fins suggests that while capable of high speed via its powerful tail, its overall hydrodynamic profile during slower cruising might be influenced by these non-retractable appendages.
Related Questions
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