... as for evaluating fitness consequences of anthropogenic disturbances. Yet, standard methods for measuring FMR are difficult to use on free-ranging cetaceans whose FMR may deviate substantially from scaling predictions using terrestrial mammals. Harbour porpoises ( Phocoena phocoena ) are among the smallest marine...

... hydrophones on the sound-producing nasal complexes of three echolocating porpoises ( Phocoena phocoena ) with symmetrical pairs of phonic lips. Using time of arrival differences on three hydrophones, we show that all recorded clicks from these three porpoises are produced by the right pair of phonic lips...

... and buzzing during prey capture. * Author for correspondence( [email protected] ) 30 6 2009 2009 echolocation porpoise foraging buzz biosonar Phocoena Echolocating animals can gather information about their environment by emitting sound pulses, then processing...