Title :
Geomagnetic field detection by yellowfin tuna
Author :
Walker, M. ; Dizon, A. ; Kirschvink, J.
Author_Institution :
University of Hawaii, Honolulu, HI, USA
Abstract :
Yellowfin tuna (Thunnus albacares) learned to discriminate between two Earth-strength magnetic fields. In addition, magnetite was localized within the ethmoid bone complex of the skull. The easily-conditioned response to magnetic field stimuli indicate that the tunas possess a geomagnetic sense, while the presence of magnetite suggests a mechanism for sensing the geomagnetic field.
Keywords :
Biological materials; Bones; Geomagnetism; Magnetic analysis; Magnetic fields; Magnetic materials; Magnetosphere; Marine animals; Skull; Testing;
Conference_Titel :
OCEANS 82
Conference_Location :
Washington, DC, USA
DOI :
10.1109/OCEANS.1982.1151708
