Biology, comercial catch and potencial use of tucunare (Cichla monoculus, Pisces: Cichlidae) in Ucayali, Perú

Authors

  • José C. Riofrío Facultada de Ciencias Biológicas, Instituto de Ciencias Biológicas Antonio Raimondi. Lima. Perú.
  • Javier E. Zaldívar Facultada de Ciencias Biológicas, Instituto de Ciencias Biológicas Antonio Raimondi. Lima. Perú.
  • César A. Villanueva Facultad de Medicina Veterinaria, IVITA-Pucallpa. Universidad Nacional Mayor de San Marcos. Perú.
  • Daniel A. Velarda Ministerio de Pesquería, DIRESEPE-Ucayali. Perú.

DOI:

https://doi.org/10.15381/rpb.v7i2.6817

Keywords:

ucunare, Cichla monoculus, Amazon fisheries, Ucayali, Peru.

Abstract

Biological characterization of fisheries is essential for an adequate use and management. From February 1999 to January 2000 length-weight ratio, global sexual proportion, egg laying season, mature length, and feeding habit data were recorded from 250 specimens of Cichla monoculus "tucunaré". The standard length (SL) - eviscerated weight (SL-EW) ratio is isometric for both males and females with a joint relation EW = 0,0184* SL 3,0963. Global sexual proportion is near 1:1. Egg laying is during the Ucayali river wet season (October-January). Calculated mature length for females is about 26,5 cm SL and it is proposed as catch length for regulatory purposes. Tucunare feeds mainly from fishes, predominantly median and small Characiformes (Cheirodon. Ctenobrycon, Hoplias, Leporinus and Psectrogaster. But also Siluriformes (Corydoras, Hypostominae, Loricariinae, Pimelodidae), Perciformes (Aequidens, Crenicichla) and Gymnotiformes (Sternopygidae) which suggests that the feeding occurs at daylight and sunset. C. monoculus has potential use for fish farming, specially in extensive method. Coming from lentic environments, it reproduces naturally annually, and can also be used as a fish controller.

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Published

12/29/2000

Issue

Vol. 7 No. 2 (2000)

Section

Articles

License

Copyright (c) 2000 José C. Riofrío, Javier E. Zaldívar, César A. Villanueva, Daniel A. Velarda

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How to Cite

Riofrío, José C., Javier E. Zaldívar, César A. Villanueva, and Daniel A. Velarda. 2000. “Biology, Comercial Catch and Potencial Use of Tucunare (Cichla Monoculus, Pisces: Cichlidae) in Ucayali, Perú”. Revista Peruana De Biología 7 (2): 142-50. https://doi.org/10.15381/rpb.v7i2.6817.