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Alternate Title

Red hind Epinephelus guttatus Vocal Repertoire Characterization, Behavior and Temporal Patterns

Document Type

Gulf and Caribbean Fisheries Institute Partnership

Abstract

Passive acoustic monitoring provides a method for studying grouper courtship associated sounds (CAS). For Red Hind (Epinephelus guttatus), this approach has documented spatio—temporal patterns in their spawning aggregations. This study described vocalizations produced by E. guttatus and their respective behavioral contexts in field and laboratory studies. Five sound types were identified, which included 4 calls recorded in captivity and one sound recorded in the wild, labeled as Chorus. Additionally, the Grunt call type recorded was presumed to be produced by a female. Call types consisted of variations and combinations of low frequency (50—450 Hz) pulses, grunts and tonal sounds in different combinations. Common call types exhibited diel and lunar oscillations during the spawning season, with both field and captive recordings peaking daily at 1800 AST and at 8 days after the full moon.

First Page

GCFI31

Last Page

GCFI41

SuppInfo_EGU_PulseTrain.wmv (7146 kB)
Video_PulseTrain

SuppInfo_EGU_PulseTrain-RH2.wmv (25734 kB)
Video_Pulsetrain-RH2

SuppInfo_EGU_Redhind_Grunt.wmv (11182 kB)
Video_Grunt

SuppInfo_EGU_RH1.wmv (6627 kB)
Video_RH1

SuppInfo_EGU_RH2.wmv (10143 kB)
Video_RH2

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