Red hind Epinephelus guttatus vocal repertoire characterization, temporal patterns and call detection with micro accelerometers

dc.contributor.advisor Appeldoorn, Richard S. Zayas Santiago, Carlos M. College of Arts and Sciences - Sciences en_US
dc.contributor.committee Juan, Cruz
dc.contributor.committee Scharer, Michelle
dc.contributor.department Department of Marine Sciences en_US
dc.contributor.representative Morales, Alesandra 2019-05-24T09:11:41Z 2019-05-24T09:11:41Z 2019-05-14
dc.description.abstract Passive acoustic monitoring has been used to study groupers that produce courtship associated sounds (CAS) when they aggregate to spawn. This technique has revealed patterns of sound production during red hind (Epinephelus guttatus) spawning aggregations with extremely high temporal resolution. In particular, it has been shown that groupers can have a varied vocal repertoire, however, detailed studies of the number, types and periodicity of CAS are lacking. The purpose of this study was to characterize and understand in detail the CAS and other vocalizations in E. guttatus and their respective behavioral context, using a combination of field and laboratory studies. During the 2017 spawning season (Dec – Feb), red hind where held in a 57,000-liter tank equipped with a low frequency acoustic recorder and video cameras to record behavior. Additionally, the experimental set up included an open accelerometer to detect sound in smaller devices, which can enable scientist to track individual fish vocalizations in the field. Field recordings from a simultaneous spawning aggregation were used to quantitatively characterize and compare the sound types recorded by audio and video during captivity. Five sound types were characterized: four from captivity and an additional one from the field recordings - ‘chorus’. These sounds consisted of variations and combinations of low (50-450hz) pulses, Grunt/Grunt Trains and tones. Some vocalizations exhibited diel and lunar oscillations, and for these both field and captivity recordings peaked daily at 1800 AST and at 8 days after the full moon. The open accelerometer was successful in recording sound but only at minimal range. Standardizing characterization of call types, coupled with this improved technology will facilitate automating call detections. Such improved data will further help relate call types to behavior, test hypotheses relating calling behavior to fitness and mate choice, determine the existence of regional dialects (indicating connectivity within the Caribbean) and assist management in monitoring and assessing grouper aggregations. This research was accepted for review by the Journal of Fish Biology. en_US
dc.description.graduationSemester Spring en_US
dc.description.graduationYear 2019 en_US
dc.description.sponsorship I would like to thank the UPRM SEA-Grant College Program for funding this research and all the help from SEAMAP-C, Dr. Edgardo Ojeda, the Department of Marine Sciences, Mr. Jose Schmidt from CID maintenance and operation and Ron Hill from NOAA. I would also like to thank Dr. Hector Ruiz and NOAA SK funded project (NA15NMF4270341) for all the assistance and expertise provided to me through this research. en_US
dc.language.iso en en_US
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 International *
dc.rights.holder (c) 2019 Carlos M. Zayas Santiago en_US
dc.rights.uri *
dc.subject Bioacoustics en_US
dc.subject Spawning aggregations en_US
dc.subject Pasive Acoustics en_US
dc.subject Epinephelus gutattus en_US
dc.subject Accelerometers en_US
dc.subject.lcsh Epinephelus guttatus en_US
dc.subject.lcsh Acoustic emission testing en_US
dc.subject.lcsh Epinephelus guttatus --Monitoring en_US
dc.subject.lcsh Fish sounds en_US
dc.subject.lcsh Accelerometer en_US
dc.title Red hind Epinephelus guttatus vocal repertoire characterization, temporal patterns and call detection with micro accelerometers en_US
dc.type Thesis en_US
dspace.entity.type Publication Marine Sciences en_US M.S. en_US
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