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Aquatic Biology

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AB 5:107-116 (2009)  -  DOI:

Sound production and reception in mangrove crabs Perisesarma spp. (Brachyura: Sesarmidae)

P. Y. Boon*, D. C. J. Yeo, P. A. Todd

Department of Biological Sciences, Marine Biology Laboratory, National University of Singapore, 14 Science Drive 4, Blk S1,

ABSTRACT: Acoustic signalling and sound production structures in the sesarmid crabs Perisesarma eumolpe (De Man) and P. indiarum (Tweedie) from Mandai mangroves, Singapore, were examined using 40 to 20000 Hz sound recordings and scanning electron microscopy. The sound receptor, Barth’s myochordotonal organ, was identified in both species. Only male crabs were found to display acoustically, and only during agonistic interactions. The present study also revealed key species-specific differences in the morphology of the stridulatory organs, stridulatory movements and resulting sounds produced. The findings show that acoustic signalling may be a significant component in the social behaviour of mangrove sesarmid crabs. 

KEY WORDS: Sound · Mangroves · Crab · Crustacea · Brachyura · Sesarmidae · Perisesarma spp. · Stridulation · Singapore

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Cite this article as: Boon PY, Yeo DCJ, Todd PA (2009) Sound production and reception in mangrove crabs Perisesarma spp. (Brachyura: Sesarmidae). Aquat Biol 5:107-116.

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