^^^^
I like the quote "There was no significant difference between the proportion of bait taken when the deterrent was turned off or on."
I think the data is from the following paper:
Huveneers C, Rogers PJ, Semmens JM, Beckmann C, Kock AA, et al. (2013) Effects of an Electric Field on White Sharks: In Situ Testing of an Electric Deterrent. PLoS ONE 8(5): e62730.
Perhaps I am getting grumpier as I age, but after spending 45 years surfing and 25 years working as a Uni/Govt. research scientist in fish physiology, I am very sceptical of shark deterrent devices and the marketing rhetoric that surrounds them.
PS: A nice simple review of the different shark deterrent devices by CHOICE can be found at:
www.choice.com.au/health-and-body/diet-and-fitness/surfing-and-snowboarding/articles/shark-repellents-review