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Rub and move: barracudas (Sphyraena barracuda) use swimming turtles as scraping surfaces in the south-western Atlantic

Published online by Cambridge University Press:  20 May 2009

Alice Grossman
Projeto Tamar/ICMBio, Alameda Boldró s/no, 53990-000 Fernando de Noronha, Pernambuco, Brazil
Cristina Sazima
Departamento de Biologia Animal, Universidade Estadual de Campinas, 13083-970 Campinas, São Paulo, Brazil
Ivan Sazima*
Museu de Zoologia, Universidade Estadual de Campinas, 13083-970 Campinas, São Paulo, Brazil(retired and associated as voluntary researcher)
Correspondence should be addressed to: I. Sazima, Museu de Zoologia, Universidade Estadual de Campinas, 13083-970 Campinas, São Paulo, Brazil email:
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The predaceous fish barracuda (Sphyraena barracuda) is recorded rubbing itself against the carapace of moving hawksbill (Eretmochelys imbricata) and green turtles (Chelonia mydas) at Fernando de Noronha Archipelago, off north-eastern Brazil. To scrape against such a rough surface is probably employed by the fish to get rid of external parasites.

Research Article
Copyright © Marine Biological Association of the United Kingdom 2009

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