Further Bio-Acoustic Studies off the West Coast of North Bimini, Bahamas
With acoustic-video techniques of observation, eight marine animal sounds were identified and an additional four were tentatively identified. These included sounds from longspine squirrelfish, queen triggerfish, bicolor damselfish, grouper, ocean surgeon, slippery dicks, jacks, cowfish, and drums. The sounds ranged from single pulses having duration times of fractions of a second and train durations of up to several seconds. cycles per second (cps) to trains of pulses having pulse repetition rates of fractions of a second and train durations of up to several seconds. Sound production was associated with feeding, locomotory, and agonistic behavior. The results of playback of these and other sounds were evidence of habituation by two species of snapper, and avoidance reactions. Some information obtained suggests interspecies communication by sound. Choruses of marine animal sounds contributed significantly to the ambient noise level in the frequency range above 200 cps in the area of study. The studies suggested more effective instrumentation and methods of observation.
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Document Type: Research Article
Publication date: 1965-12-01
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