Vertebrates are the most prodigious vocalizing animals in existence, and the most
diverse methods of acoustic communication among vertebrates can be found in the ocean.
Relatively many teleost fish are gifted with the ability to communicate acoustically, and
the family of serranidae often performs this as a function of the swim bladder.
Epinephelus Guttatus (E. guttatus), or more commonly the red hind grouper, is equipped
with a drum shaped swim bladder acting as a monopole under typical ocean conditions.
This configuration allows for what is understood to be omnidirectional projection of
tones approximately centered between 40 and 440 Hz and spanning anywhere from 40 to
200 Hz of bandwidth and modulation effects based on observed data provided by
researchers. Prior studies on many other fish show correlation in acoustic communication
profile with length, size and sexual identity. In the red hind, sexual dimorphism leads to
an inherent female identity in all juvenile fish which converts to male according to
environmental factors, recommending at least consistent organs across both sexes be assumed even if not in use. Much research has been performed on male fish vocalization
in terms of spectral content. Communication in fish is a complex multi-modal process,
with acoustic communication being important for many of the species, particularly those
in the littoral regions of the worlds’ oceans. If identifying characteristics of the red hind
vocalization can be isolated based on detection, classification, tracking and localizing
methodologies, then these identifying characteristics may indeed lead to passive feature
identification that allows for estimation of individual fish mass. Hypotheses based on
vector, cyclostationary and classical tonal mechanics are presented for consideration. A
battery of test data collection events, applying pre-recorded fish vocalizations to a geolocated
undersea sound source were conducted. The results are supplied with the intent of
validating hypothesis in a non-expert system manner that shows how a series of
biological metrics may be assessed for detection, classification, localization and mass
estimation for an individual vocalizing red hind grouper / Includes bibliography. / Dissertation (Ph.D.)--Florida Atlantic University, 2017. / FAU Electronic Theses and Dissertations Collection
| Identifer | oai:union.ndltd.org:fau.edu/oai:fau.digital.flvc.org:fau_34569 |
| Contributors | Matthews, Cameron Anthony (author), Beaujean, Pierre-Philippe (Thesis advisor), Florida Atlantic University (Degree grantor), College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering |
| Publisher | Florida Atlantic University |
| Source Sets | Florida Atlantic University |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation, Text |
| Format | 162 p., application/pdf |
| Rights | Copyright © is held by the author, with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder., http://rightsstatements.org/vocab/InC/1.0/ |
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