TITLE:
First Recorded Account of a White Shark Agonistic Pectoral Fin Depression Behavior at Guadalupe Island, Mexico
AUTHORS:
Andrew Currie, Ralph S. Collier
KEYWORDS:
White Shark, Ocean, Agonistic Behavior, Pectoral Fin Depression, Cage Diving, Guadalupe Island
JOURNAL NAME:
Open Journal of Animal Sciences,
Vol.13 No.3,
June
12,
2023
ABSTRACT: An
agonistic display by a white shark was observed and photographed during a cage dive at Guadalupe Island in November 2015.
Exhibiting exaggerated pectoral fin
depression, agonistic behaviors have been previously
observed and described in several shark species. This account may be the first record of a white
shark in close proximity to a caged diver, exhibiting strong pectoral fin depression significantly dipped, in the mid-agonistic display. Such displays should be considered as aggressive and potentially
life-threatening by those using
the ocean for recreational or professional purposes.