Hi Marmamers, i'm seerching for publications or even presentation focused on the use of T-POD to record click signals of bottlenose dolphins. I have always worked with hydrophones to store and gather signals at high frequencyes such as echolocation signals. I would like to know how does it work and if it's really helpful to study dolphin's behaviour, or if it's useful just for considering the presence/absence of cetacean. For the moment i have found the following articles, that unfortunately are focused on Harbor Porpoises: Culik, Koschinski, Tregenza, and Ellis, (2001) Reactions of harbor porpoises Phocoena phocoena and herring Clupea harengus to acoustic alarms. Mar Ecol Prog Ser.211:255-260,2001 Berggren, P., Carlstrom, J., Tregenza, N. (2002) Mitigation of Small Cetacean ByCatch; Evaluation of Acoustic Alarms. Report to European Commission on Study Contract 00/031. Englund, A., OCadhla, O., Phipott, E. (2003) Can PODs save the day? Lessons from Broadhaven. Poster at European Cetacean Society Conference, Las Palmas, 2003. Thank you all for your help. Cheers Andrea Andrea Dell'Apa CTS-Dipartimento ambiente Via Albalonga 3 - 00183 - Roma