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Brazilian Journal of Biology

Print version ISSN 1519-6984

Abstract

MATEUS, L. A. de F.  and  ESTUPINAN, G. M.B.. Fish stock assessment of piraputanga Brycon microlepis in the Cuiabá River basin, Pantanal of Mato Grosso, Brazil. Braz. J. Biol. [online]. 2002, vol.62, n.1, pp. 165-170. ISSN 1519-6984.  http://dx.doi.org/10.1590/S1519-69842002000100018.

Fork length measurements of individuals of Brycon microlepis landed and commercialized at the Porto Market in Cuiabá, MT, from May-October 1996 to May-October 1997 were used to estimate growth and mortality parameters for this species. The average estimated populational parameters were: L¥ = 705 mm, k = 0.275 year¾1, C = 0.775, WP = 0.465, Lc = 164 mm, M = 0.585 year¾1, Z = 0.822 year¾1, with F = 0.237 year¾1. Yield per recruit analysis suggests that the stock is not yet overexploited.

Keywords : Brycon; mortality; yield per recruit; fisheries management.

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