Abstract

Based on the analysis of the growing marks of 116 urohials bones from cunaro Rhomboplites aurorubens samples provided by the Cooperativa de Pescadores Artesanales of the municipality of Puerto Colombia captured between March 2007 and November 2008 in the continental platform of the Department of Atlantico, Colombia, in which size-weight relation and aga were determined-size of these species through the growing patterns of Von Bertalanffy model. It was established that the cunaro has a growing pattern slightly allometric (b=3,05) and a maximun age of 8 years according to the growing patterns of L = 337.43mm, K= 0.1276 year, W= 485g and t0 =-0.33 years. It was evident that there was a lack of a sexual dimorphism in the species growth (p>0,05). The sample was constituted by 61 females, 51 males and 4 undetermined. In conclusion, this study claims that urohial bones of the cunaro allow the estimates of the key age – size for the captured population of the continental platform of the Department of Atlantico, forming a mark per each year. With population patterns, one can infer that an average life expectancy of the cunaro is in line with the rest of the Lutjanidae family.

PDF Preview