The predation of cookie-cutter sharks Isistius spp. upon the early life stages of yellowfin tuna Thunnus albacares, skipjack tuna Katsuwonus pelamis and little tunny Euthynnus alletteratus are described. New evidence suggesting a connection between commercial fishing and predation by Isistius sp. is presented, with these sharks biting tunas hooked in surface waters during daylight. The healing patterns of the wounds made by the sharks are described in detail and, although such damage is known to negatively influence market price elsewhere, it is not the case on the south-east Brazilian coast.
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http://dx.doi.org/10.1111/jfb.13569 | DOI Listing |
PLoS One
February 2024
Departments of Pediatrics, Quantitative Health Sciences, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America.
The nocturnal feeding behavior and zoogeographical habitat of cookiecutter sharks Isistius brasiliensis and Isistius plutodus (Isistius spp.) greatly reduces interaction of this species with live humans. Attacks on live humans are exceedingly rare with 7 cases reported worldwide, 6 of them in Hawai'i, and 5 of these occuring among channel swimmers.
View Article and Find Full Text PDFJ Fish Biol
April 2018
Universidade Federal Rural de Pernambuco, Departamento de Pesca e Aquicultura, CEP 52171-900, Recife, PE, Brazil.
The predation of cookie-cutter sharks Isistius spp. upon the early life stages of yellowfin tuna Thunnus albacares, skipjack tuna Katsuwonus pelamis and little tunny Euthynnus alletteratus are described. New evidence suggesting a connection between commercial fishing and predation by Isistius sp.
View Article and Find Full Text PDFInt J Legal Med
March 2017
Department of Security and Crime Science - Centre for the Forensic Sciences, University College London, 35 Tavistock Square, London, WC1H 9EZ, UK.
Accurate determination of the origin and timing of trauma is key in medicolegal investigations when the cause and manner of death are unknown. However, distinction between criminal and accidental perimortem trauma and postmortem modifications can be challenging when facing unidentified trauma. Postmortem examination of the immersed victims of the Yemenia airplane crash (Comoros, 2009) demonstrated the challenges in diagnosing extensive unusual circular lesions found on the corpses.
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