Do pingers reduce interactions between bottlenose dolphins and nets around the Balearic Islands?

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Citation: Brotons, J.M., Munilla, Z., Grau, A.M., Rendell, L.,, 2008. Do pingers reduce interactions between bottlenose dolphins and nets around the Balearic Islands?. Endangered Species Research, 5, ps 1-8.
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Summary:

A large scale pinger trial was conducted and results showed a 49% decrease dolphin depredation rates when pingers were active. However the different pinger brands tried were not equally effective in reducing depredation.
Field Studies:
Location Fishing gear Reduction technique Bycatch species Effect on bycatch species Catch Effect on target catch Type
Balearic Islands, Mediterranean Sea Gillnets Acoustic pingers Small Cetaceans (maximum length < 7.5 meters) 49% reduction in depredation rate by bottlenose dolphins (Tursiops truncatus) Mixed species Increased target catch (but not significant) In the wild