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Pereira, Pedro Henrique Cipresso; Feitosa, João Lucas Leão; Ferreira, Beatrice Padovani
Neotropical Ichthyology, 12/2011, Volume: 9, Issue: 4Journal Article
The present study analyzed heterotypic schooling behavior and protective mimicry relationships involving species of the genus Haemulon and other coral reef fishes on coastal reefs at Tamandaré, Pernambuco State, Northeastern Brazil. The work was performed during 35 hours of direct observation using the "focal animal" method. The observed events involved 14 species of reef fish in eight different families. The phenomenon of mixed schooling appeared to be related to the large number of individuals of the genus Haemulon present in reef environments and to the tendency of individuals with limited populations to try to aggregate in schools (e.g. genus Scarus). O presente estudo analisou o comportamento de formação de cardumes mistos e mimetismo de proteção envolvendo espécies do gênero Haemulon e demais peixes recifais nos recifes costeiros de Tamandaré, estado de Pernambuco, Nordeste do Brasil. O trabalho foi realizado utilizando observações subaquáticas e incluiu 35 horas de observação direta utilizando o método animal focal, durante as quais foram registradas associações com 14 espécies pertencentes a oito famílias diferentes. Os fenômenos registrados possivelmente estão relacionados à grande quantidade de indivíduos do gênero Haemulon presentes nos ecossistemas recifais e também à tendência de indivíduos com reduzidas populações a permanecerem em cardumes (e.g. gênero Scarus).
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