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Relación entre parámetros biométricos y peso seco en insectos acuáticos depredadores de Venezuela

Abstract:

Pbkp_redictive equations were calculated to estimate dry weight from standard length and cephalic length or width for Chaoborus sp. (Diptera) and Corydalus spp. (Megaloptera), two groups of predatory aquatic insects from River Guasare-Limón Basin, western Venezuela. Regression analysis indicated that relationship between biomass and biometric parameters was best expressed by equation W= aLb. Although all biometric parameters were highly correlated to dry weight (p <0.001), estimations from length or width of the head capsule had higher determination coefficients. The results are similar to those found in temperate insects.