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Diferenciação geográfica de Macrodon ancylodon (Bloch & Schneider, 1801) na costa brasileira, entre as latitudes 18º36'S e 32º10'S: etapa I

1979; SciELO; Volume: 28; Issue: 1 Linguagem: Inglês

10.1590/s0373-55241979000100002

ISSN

2316-8951

Autores

Noriyoshi Yamaguti,

Tópico(s)

Crustacean biology and ecology

Resumo

Multiple range tests according to Kramer, 1956 were performed on 3 meristic and 15 morphometric characters of pescada-foguete (Macrodon ancylodon) samples collected off coast near Conceicao da Barra (Espirito Santo State), Atafona, Macae, Ubatuba cities, Bom Abrigo Island and Rio Grande do Sul State coast. It was also observed morphological differences in otoliths collected at each region. The number of statistical differences among samples and different morphological characteristics presented by otoliths suggested the existence of four populations along the studied area: (1) along Espirito Santo State coast; (2) near the region between Atafona and Macae coasts; (3) along Sao Paulo, Parana and north Santa Catarina States coasts and (4) along Rio Grande do Sul State coast. Probably the differentiation was caused by different environmental conditions observed among regions. Other papers about life history corroborate these results except for the Espirito Santo population about which there is no biological information up to the moment.

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