A study by five university researchers—including four from the University of Hawai'i at Mānoa—concludes that existing shark cage diving enterprises in Hawai'i have a negligible effect on public safety.
Researchers included Carl G. Meyer, Yannis P. Papastamatiou and Kim N. Holland who are researchers with the UH Mānoa Hawai'i Institute of Marine Biology at Coconut Island, and Nicholas M. Whitney who works at the Mote Marine Laboratory in Sarasota, Florida.
The scientists collected and analyzed logbook data from two O'ahu shark cage diving operations from 2004-08 to obtain "useful insights into shark ecology or ecotourism impacts." Those impacts on public safety were deemed to be "negligible," due to factors such as remoteness of the sites, and conditioning stimuli that are specific to the tour operations and different from inshore recreational stimuli.
The study also notes that there has been "no increase in shark attacks on the north coast of O'ahu since cage diving started."
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