First record of the dusky grouper Epinephelus marginatus (Actinopterygii: Epinephelidae) undergoing sexual transition in the South Western Atlantic, Brazil

  • Mario Vinicius Condin Universidade Federal do Rio Grande, Instituto de Oceanografia, Laboratório de Ictiologia, 474, CEP 96.201-900, Rio Grande, RS, Brasil
  • Elisa Seyboth Universidade Federal do Rio Grande, Instituto de Oceanografia, Laboratório de Ictiologia, 474, CEP 96.201-900, Rio Grande, RS, Brasil
  • João Paes Vieira Universidade Federal do Rio Grande, Instituto de Oceanografia, Laboratório de Ictiologia, 474, CEP 96.201-900, Rio Grande, RS, Brasil
  • Antônio Sergio Varela-Jr
  • João Pedro Barreiros Universidade dos Açores, Departamento de Ciências Agrárias and Azorean Biodiversity Group (CITA-A), 9701-851 Angra do Heroísmo, Portugal
  • Luís Fernando Favaro Universidade Federal do Paraná, Departamento de Biologia Celular, Setor de Ciências Biológicas, Curitiba, PR, Brasil
  • Alexandre Miranda Garcia Universidade Federal do Rio Grande, Instituto de Oceanografia, Laboratório de Ictiologia, 474, CEP 96.201-900, Rio Grande, RS, Brasil
Palabras clave: Endangered species, protogynous hermaphroditism, southern Brazil.

Resumen

The dusky grouper Epinephelus marginatus is a marine species historically exploited showing slow growth, late maturation and protogynous hermaphroditism. Currently, it is considered as endangered by the IUCN. Therefore, it is essential to increase the knowledge about its biology and ecology to help conservation of this species. The present study reports the first record of a dusky grouper individual undergoing sexual transition, from female to male, in the Atlantic Ocean based on histological analyses of gonads. The specimen with total length: 770 mm; total weight: 8.1 kg and age: 21 years was captured in a rocky bottom along the coastline of the southernmost in state Brazil.

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Publicado
04-01-2017
Cómo citar
Vinicius Condin, M., Seyboth, E., Paes Vieira, J., Varela-Jr, A. S., Barreiros, J. P., Fernando Favaro, L., & Miranda Garcia, A. (2017). First record of the dusky grouper Epinephelus marginatus (Actinopterygii: Epinephelidae) undergoing sexual transition in the South Western Atlantic, Brazil. HIDROBIOLÓGICA, 23(3), 446-449. Recuperado a partir de https://hidrobiologica.izt.uam.mx/index.php/revHidro/article/view/668
Sección
Nota Científica