... to the hydrodynamic signatures generated by predators in the initial approach phase of an attack. Sepia officinalis Cuttlefish Hearing Infrasound Predator–prey interaction Striking predator Suction feeding The large and highly developed eyes of cephalopods, as well as their ability to undergo...

... of the tail slap and body pulse sounds in Chaeotodon species are correlated with body size and can provide honest communication signals. Future studies on fish acoustic communication should investigate low-frequency and infrasound acoustic fields to understand the integrated function of the ear and lateral...

... of Biologists Ltd 2015 Summary : Butterflyfish detect sound pressure to enhance hearing and aid social communication in a noisy environment. Behavior Bioacoustic Communication Fish Hydrodynamic Infrasound Social behavior The perception of communication signals in fishes can involve...

... vicinity. Such signals could arise from ground-to-air coupling of near-continuous microseisms, or from scattering of direct microbaroms off terrain features, both of which are initially generated by wave–wave interactions in the deep ocean. HARPA runs show that little or no infrasound from the loft area...

...Hans E. Karlsen; Robert W. Piddington; Per S. Enger; Olav Sand SUMMARY Acoustic stimuli within the sonic range are effective triggers of C-type escape behaviours in fish. We have previously shown that fish have an acute sensitivity to infrasound also, with acceleration thresholds in the range of 10...

... these infrasonic map cues can explain perplexing experimental results from pigeon releases. * e-mail: [email protected] 27 1 2000 9 3 2000 © 2000 by Company of Biologists 2000 navigation map homing pigeon infrasound shock wave topography microseism Homing or carrier...

... 92037-0116, USA. 21 10 1996 © The Company of Biologists Limited 1997 active space animal communication bioacoustics calling area calling range infrasound elephants Many animal species use long-range calls to establish their use of space and their relationships...

... that strong temperature inversions form at the surface before sunset and decay with sunrise, often accompanied by calm wind conditions during the early evening. These observations are used in an acoustic model to determine the sensitivity of infrasound to the effects of (a) the strength, thickness...

...Hans Erik Karlsen ABSTRACT In a previous study of infrasound detection in the cod, the inner ear was suggested to be the sensory organ responsible for the responses. However, a possible involvement of the lateral-line system in the observed low-frequency detection could not be ruled out...

...Hans Erik Karlsen ABSTRACT The sensitivity of plaice ( Pleuronectes platessa ) to infrasound has been examined using a seawater-filled test chamber suspended by steel wires like a swing and driven by a vibrator. The sensitivity to low-frequency vibrations was determined using the cardiac...

... of Biologists 1991 infrasound elephant Loxodonta africana communication The purpose of this study was to estimate the distance over which African elephants (Loxodonta africana) can perceive the low-frequency calls of con-specifics, as part of an effort to determine whether these calls...

...Olav Sand; Hans E. Karlsen Below about 50 kHz the level of ambient noise in the sea increases continuously towards lower frequencies. In the infrasound range the spectral slope is particularly steep. This low-frequency noise may propagate long distances with little attenuation, causing...