OCEANS: Sales of anti-shark devices boom on Maui after fatal attacks Published: Friday, January 24, 2014 Devices that claim to repel sharks have seen an influx in sales on Maui amid an increase in attacks. Please subscribe to Greenwire to read the full story. Username: Password: Forgot your access codes? Recover them. Not a subscriber? Sign up for a trial. Ready to subscribe? Click here.