Invemar
Bulletin of Marine and Coastal Research

First record of the interaction between Isistius sp. (Elasmobranchii: Dalatiidae) and Balaenoptera physalus (Mysticeti: Balaenopteridae) in Venezuelan waters

Juan Esteves, Arnaldo Figueredo, Rodrigo Acosta, Carlos Lira, Luis Bermúdez-Villapol

Abstract


The stranding of an adult male Balaenoptera physalus (Mysticeti: Balaenopteridae) in Los Cocoteros Beach in Margarita Island, Venezuela, gave the chance of studying the interactions present in it. 33 injuries were found in several points of rorqual tegument; oval or rounded in shape, like craters, from 5 to 7 cm long, 5 to 6 cm wide, and 3 to 5 cm deep. Most of them, were fresh. Wounds were attributed to the cookie cutter shark Isistius sp. (Elasmobranchii: Dalatiidae), given the remarkable correspondences. The present note
constitutes the first known association between the cookie cutter shark and the fin whale in Venezuelan, Caribbean and western Atlantic waters.


Keywords


Cookie Cutter Shark, Fin Whale, Bitemarks.

Full Text: PDF

DOI: 10.25268/bimc.invemar.2018.47.1.742

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