Peixes recifais brasileiros: diversidade e endemismo

Detalhes bibliográficos
Ano de defesa: 2002
Autor(a) principal: Guimarães, Ricardo Zaluar Passos
Orientador(a): Não Informado pela instituição
Banca de defesa: Não Informado pela instituição
Tipo de documento: Tese
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Federal do Rio de Janeiro
Brasil
Museu Nacional
Programa de Pós-Graduação em Ciências Biológicas (Zoologia)
UFRJ
Programa de Pós-Graduação: Não Informado pela instituição
Departamento: Não Informado pela instituição
País: Não Informado pela instituição
Palavras-chave em Português:
Link de acesso: http://hdl.handle.net/11422/3461
Resumo: Leveis of diversity and endemism of the ichthyofauna that inhabits Brazilian shallow reefs are established. Related ecological and historical factors are presented and discussed. Diversity is estimated based on a criticai review of recent contributions to the taxonomy of Brazilian reef fishes. These contributions are typified by a case study dealing with the revision of the Brazilian species of the genus Paraclinus (Teleostei, Blennioidei, Labrisomidae). This study indicated that actual leveis of diversity (three species of Paraclinus) as well as endemism within Brazilian waters (100 %) are higher than previously sustained. lnformation presented in this as well as in similar studies revealed levels of diversity and endemism in Brazilian reef fishes higher than previously described. From this standpoint, two analyses about distinct aspects of the biogeography of this fauna were conducted. Among historical phenomena that forged these zones of endemism, aside from sealevel changes that took place during Pleistocenic glacial cycles, are changes in thermo-halíne circulation patterns (THC) that occurred during the sarne period.