Crab eating crab: first record of the Horn-eyed Ghost Crab Ocypode brevicornis> preying on the Mottled Light-footed Crab <Grapsus albolineatus in Visakhapatnam, India

Authors

  • Harish Prakash Department of Life Sciences, GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam, Andhra Pradesh, India. image/svg+xml
  • M.K. Abhisree Department of Life Sciences, GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam, Andhra Pradesh, India. image/svg+xml
  • Rohan Kumar Department of Life Sciences, GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam, Andhra Pradesh, India. image/svg+xml

DOI:

https://doi.org/10.11609/jott.10001.17.11.28001-28003

Keywords:

Diet, foraging, ghost crab, intertidal zone, Ocypodidae, predation

Abstract

Predator-prey interactions are key ecological processes that regulate communities in the intertidal zone. Here, we report a previously unrecorded predation event in which the Horn-eyed Ghost Crab Ocypode brevicornis, which usually occupies the sandy shores, was handling a Mottled Light-footed Crab Grapsus albolineatus, which usually occupies the rocky habitat. This observation suggests occasional nocturnal foraging of ghost crabs in rocky sections, likely limited to areas where sandy and rocky habitats co-occur. These findings highlight habitat-driven predator–prey dynamics and provide new insights into the ecological role of apex invertebrate predators in intertidal zones.

Author Biographies

Harish Prakash, Department of Life Sciences, GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam, Andhra Pradesh, India.

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M.K. Abhisree, Department of Life Sciences, GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam, Andhra Pradesh, India.

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Rohan Kumar, Department of Life Sciences, GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam, Andhra Pradesh, India.

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References

An, Z., D. Gao, F. Chen, L. Wu, J. Zhou, Z. Zhang & Y. Zheng (2021). Crab bioturbation alters nitrogen cycling and promotes nitrous oxide emission in intertidal wetlands: Influence and microbial mechanism. Science of The Total Environment 797: 149176. https://doi.org/10.1016/j.scitotenv.2021.149176

Branco, J.O., J.C. Hillesheim, H.A.A. Fracasso, M.L. Christoffersen & C.L. Evangelista (2010). Bioecology of the Ghost Crab Ocypode quadrata (Fabricius, 1787) (Crustacea: Brachyura) Compared with Other Intertidal Crabs in the Southwestern Atlantic. Journal of Shellfish Research 29(2): 503–512. https://doi.org/10.2983/035.029.0229

Chartosia, N., M.S. Kitsos, T. Tzomos, E. Mavromati & A. Koukouras (2010). Diet composition of five species of crabs (Decapoda, Brachyura) that show a gradual transition from marine to terrestrial life. Crustaceana 83(10): 1181–1197.

Dubey, S.K., D.C. Chakraborty, S. Chakraborty & A. Choudhury (2013). Burrow architecture of red ghost crab Ocypode macrocera (H. Milne-Edwards, 1852): a case study in Indian Sundarbans. Exploratory Animal and Medical Research 3(2): 136–144.

Harley, C.D.G. (2011). Climate Change, Keystone Predation, and Biodiversity Loss. Science 334(6059): 1124–1127. https://doi.org/10.1126/science.1210199

Johnston, E.L. & D.A. Roberts (2009). Contaminants reduce the richness and evenness of marine communities: A review and meta-analysis. Environmental Pollution 157(6): 1745–1752. https://doi.org/10.1016/j.envpol.2009.02.017

Kwon, E., J.D. Fraser, D.H. Catlin, S.M. Karpanty, C.E. Weithman & B. Muiznieks (2018). Presence of ghost crabs and piping plover nesting success. The Journal of Wildlife Management 82(4): 850–856. https://doi.org/10.1002/jwmg.21422

Lucrezi, S. & T.A. Schlacher (2014). The Ecology of Ghost Crabs pp. 201–256. In: Hughes, R.N., D.J. Hughes, & I.P. Smith (eds.). Oceanography and Marine Biology. CRC Press.

Paine, R.T. (1966). Food web complexity and species diversity. The American Naturalist 100(910): 65–75. http://www.jstor.org/stable/2459379

Sakai, K. & M. Türkay (2013). Revision of the genus Ocypode with the description of a new genus, Hoplocypode (Crustacea: Decapoda: Brachyura). Memoirs of the Queensland Museum – Nature 56(2): 665–793. https://doi.org/10.17082/j.2204-1478.56.2.2013-22

Vale, J.G. do, G.H.C. Barrilli, S. Chahad-Ehlers & J.O. Branco (2022). Factors influencing the feeding habits of the ghost crab Ocypode quadrata (Fabricius, 1787) on subtropical sandy beaches. Estuarine, Coastal and Shelf Science 269: 107817. https://doi.org/10.1016/j.ecss.2022.107817

Wolcott, T.G. (1978). Ecological role of ghost crabs, Ocypode quadrata (Fabricius) on an ocean beach: scavengers or predators? Journal of Experimental Marine Biology and Ecology 31(1): 67–82.

Yong, A.Y.P. & S.S.L. Lim (2019). Quantitative methods for the determination of abundance of mobile prey of ghost crabs, Ocypode Weber, 1795 (Decapoda: Brachyura: Ocypodidae), a top predator on sandy shores. Journal of Crustacean Biology 39(4): 516–521. https://doi.org/10.1093/jcbiol/ruz022

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26-11-2025 — Updated on 27-11-2025

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