[MARMAM] New article about dolphins and acoustic deterrent devices

Bruno Diaz b_d_r_i at yahoo.com
Mon Sep 26 13:08:54 PDT 2011


Dear colleagues, I am pleased to inform you of my last publication on bottlenose dolphins and acoustic deterrent devices. The following paper is now available online which describes the first practical attempt to assess the influence of an AHD on the behaviour of common bottlenose dolphins in association with a marine fin fish farm. Article title: A trial of acoustic harassment device efficacy on free-ranging bottlenose dolphins in Sardinia, Italy
Journal title: Marine and Freshwater Behaviour and Physiology
Authorr: Mr. Bruno Diaz Lopez & Fernando MariñoDOI:10.1080/10236244.2011.618216
Abstract
Acoustic harassment devices (AHDs) have been deployed to reduce the interaction between different marine mammals and fisheries in many areas. Despite field studies on some marine mammal species, there is a lack of information about their effectiveness on common bottlenose dolphins. The controlled exposure experiment described here is the first practical attempt to assess the influence of an AHD on the behaviour of free-ranging common bottlenose dolphins in association with a marine fin-fish farm. A total of 90.7 h were spent in direct observation of 55 groups of bottlenose dolphins along the north-eastern coast of Sardinia (Italy). Activation of the AHD did not have a significant and immediate effect on bottlenose dolphins’ presence, distance from the AHD, group size or time spent in the fish farm area. The AHD alone did not effectively deter bottlenose dolphins, particularly when other motivating factors, such as food, were present. Thus, prior to
 further employment of AHDs, additional research in their effects on the marine environment is essential for coastal conservation and aquaculture management.
If you are interested in a reprint, please email Bruno Diaz Lopez at bruno at thebdri.com This article is now published online at: 
http://www.tandfonline.com/doi/abs/10.1080/10236244.2011.618216
Best regards,
Bruno Diaz Lopez Chief Researcher / Marine Zoologist Bottlenose Dolphin Research Institute BDRI V.Armando Diaz Nº4 07020 Golfo Aranci (SS) Italy www.thebdri.com info at thebdri.com  tel.+ 39 346 081 5414tel. + 0789 183 11978
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