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Dying or Illness Feigning: An Unreported Feeding Tactic of the Comb Grouper Mycteroperca acutirostris (Serranidae) from the Southwest Atlantic

Fernando Z. Gibran
Copeia
Vol. 2004, No. 2 (May 5, 2004), pp. 403-405
Stable URL: http://www.jstor.org/stable/1448579
Page Count: 3
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Dying or Illness Feigning: An Unreported Feeding Tactic of the Comb Grouper Mycteroperca acutirostris (Serranidae) from the Southwest Atlantic
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Abstract

This paper reports field observations on dying or illness feigning by the Comb Grouper Mycteroperca acutirostris in shallow waters of the southeastern Brazil's coast, and comments on this unique hunting behavior, similar to death feigning previously recorded for a cichlid species in Africa. An individual preying on young fishes at dusk successfully employed this unusual feeding strategy during five sequential foraging bouts. No other M. acutirostris individual was observed feigning dying, a behavior that seems to be a modification of the stalking tactic. /// Este trabalho descreve observações naturalísticas sobre o comportamento do Badejo-mira Mycteroperca acutirostris de fingir estar morrendo ou debilitado, em águas rasas da costa sudeste do Brasil, e comenta esta tática alimentar singular, semelhante ao comportamento de fingir-se de morto, previamente registrado para uma única espécie de ciclídeo na África. Um indivíduo predando peixes juvenis durante o crepúsculo vespertino empregou com sucesso esta rara estratégia alimentar em cinco capturas seqüenciais. Nenhum outro indivíduo de M. acutirostris foi observado fingindo estar morrendo, um comportamento que parece ser uma modificação da tática de espreita.

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