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Brazilian Journal of Biology

On-line version ISSN 1678-4375


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 1678-4375.

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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