Sound Production and Reproductive Behavior of Yellowfin Grouper, Mycteroperca venenosa (Serranidae) at a Spawning Aggregation

  • Schärer M
  • Nemeth M
  • Mann D
 et al. 
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Reproductive behaviors and sound production of the Yellowfin grouper (Mycteroperca venenosa) are described from in-situ observations by divers as well as synchronous underwater audio-video recordings at a spawning aggregation off Mona Island, Puerto Rico. The highest abundances of M. venenosa estimated from underwater visual surveys were detected in March and April, five to nine days after the full moon (DAFM). Four distinct color phases were observed for M. venenosa; two of these were unique to the spawning aggregation and one, the white-headed phase, was exhibited during interactions with other conspecifics corresponding to courtship displays. Variations in color phases during fish Interactions and group formation coupled with sounds preceded spawning, which occurred near sunset. Low-frequency (

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  • Michelle T. Schärer

  • Michael I. Nemeth

  • David Mann

  • James Locascio

  • Richard S. Appeldoorn

  • Timothy J. Rowell

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