Biometria e barimetria da tartaruga da Amazônia, Podocnemis expansa (SCHWEIGGER, 1812), em sistemas comerciais

Abstract

The Chelonians represent one of the main bilological resourses of the Amazon region and stand as a important food source for the people that live by the rivers. For that reason, the possibility of commercial rising came forth. Biometries have been made to develop barometric equations in order to determinate the biometry of the amazon turtle and evaluate functions that can be.used for the barometry of the animals at two commercial rinsing fields. Living weight records was used separate heavy and light samples to each site. Because the great variation of the living weight, it was converted to logarithmic scale. To compare two different levels of years and sites, a multivariated variance analysis was performed. A discriminating analysis was adopted by using a canonic variable. The great living weight variation in each year and site reveals that in samples with same age and origin, the animals show great heterogeneity for living weight. The result of the canonic correlation for two rising fields indicates that the living weight can be explained in 86% and 96% when a linear relation is established. Excepting the head width and tail length variables, all others demonstrated highly correlated to the living weight. Therefore, there are a high variation of the living weight among animals created in captivity. The biometries are highly related to the living weight and should be included in studies that seek barometry.