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Sexual colour patterns in the sandperch Pseudopercis numida Ribeiro (Osteichthyes, Pinguipedidae)

Abstract

This communication deals with the sexual colour patterns in the sandperch Pseudopercis numida Ribeiro, 1903, a benthonic fish of commercial importance, endemic to the Brazilian continental shelf, occurring off the coasts from Espírito Santo to Rio Grande do Sul States. The males have the head, the dorsal part of the body, and the pectoral and caudal fins blackishes, whereas the females have them brown-yellowishes. Such patterns are constant characters, not related to maturity or breeding seasons.

Osteichthyes; Pseudopercis numida; sexual colours; Brazilian ichthyofauna


Sexual colour patterns in the sandperch Pseudopercis numida Ribeiro (Osteichthyes, Pinguipedidae)

Melquíades Pinto PaivaI; Magda Fernandes de AndradeII

IRua Baronesa de Poconé 71, apartamento 701. 22471-270 Rio de Janeiro, Rio de Janeiro, Brasil

IIDepartamento de Biologia Marinha, Universidade Federal do Rio de Janeiro. 21949-900 Rio de Janeiro, Rio de Janeiro, Brasil

ABSTRACT

This communication deals with the sexual colour patterns in the sandperch Pseudopercis numida Ribeiro, 1903, a benthonic fish of commercial importance, endemic to the Brazilian continental shelf, occurring off the coasts from Espírito Santo to Rio Grande do Sul States. The males have the head, the dorsal part of the body, and the pectoral and caudal fins blackishes, whereas the females have them brown-yellowishes. Such patterns are constant characters, not related to maturity or breeding seasons.

Key words: Osteichthyes, Pseudopercis numida, sexual colours, Brazilian ichthyofauna

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ACKNOWLEDGMENTS. We are grateful to Mr. João Evangelista Nunes de Viveiros and his employees for the facilities given to our work in Niterói (State of Rio de Janeiro - Brazil), to the Biologist Rafael de Almeida Tubino for the young sandperch gonad histological preparations, and to the Departamento de Histologia, Universidade Federal do Rio de Janeiro by the permission for using its main laboratory. The first author presents his gratitude to the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) by the research scholarship received for studies on the biology and fishery of the southeast coast of Brazil benthonic commercial fishes.

Recebido em 27.V.1995; aceito em 27.XII.1996.

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Publication Dates

  • Publication in this collection
    13 July 2009
  • Date of issue
    1996

History

  • Accepted
    27 Dec 1996
  • Received
    27 May 1995
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