Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/98969
Type: Editorial
Title: Underwater Observations Of Piranhas In Western Brazil
Author: Sazima I.
Machado F.A.
Abstract: The behaviour of three piranha species, Serrasalmus marginatus, S. spilopleura, and Pygocentrus nattereri, and their prey fishes was studied underwater in the Pantanal region, Mato Grosso, Brazil. General habits, predatory tactics, feeding behaviour, and social interactions while foraging, as well as defensive tactics of prey fishes were observed. S. marginatus is solitary whereas the other two species live in shoals; their agonistic behaviour varies accordingly, the simplest being displayed by the solitary species. Predatory tactics and feeding behaviour also vary:S. spilopleura shows the most varied diet and highly opportunistic feeding strategy, which includes aggressive mimicry. The solitary S. marginatus, besides fin and scale-eating, occasionally cleans larger individuals of P. nattereri. Several cichlid species display defensive tactics clearly related to piranha attacks: tail protecting, watching, and confronting the predator are the most commonly observed behaviours. Piranhas seem to strongly influence use of habitat, social structure, and foraging mode of the fish communities. © 1990 Kluwer Academic Publishers.
Editor: Kluwer Academic Publishers
Rights: fechado
Identifier DOI: 10.1007/BF00751026
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-0025588342&partnerID=40&md5=e273045af689a3f297a6d34de392ccb2
Date Issue: 1990
Appears in Collections:Unicamp - Artigos e Outros Documentos

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