%0 Journal Article
%T Lasso Model for Morphological Covariation Patterns between Colossoma macropomum and Piaractus orinoquensis × Colossoma macropomum Hybrid
%A Manuel Milla Pino
%A Danny Villegas Rivas
%A César Osorio Carrera
%A Nancy Carruitero Avila
%A Teresita Merino Salazar
%A Henry Díaz Merino
%A Carola Calvo Gastañaduy
%A Ricardo Shimabuku Ysa
%A Juan De La Cruz Lozado
%A River Chávez Santos
%A Dora Calvo Gastañaduy
%A Lillet Villavicencio Palacios
%J Journal of Biochemical Technology
%@ 0974-2328
%D 2021
%V 12
%N 1
%R 10.51847/pFILL2lk3G
%P 45-48
%X Currently, great importance has been given to the study of external morphology, especially in fish, when it is used as a means of identifying hybrids. This paper considers a LASSO model based on the truss protocol to compare morphological covarion patterns between specimens of C. macropomum and the hybrid P. orinoquensis (♂) × C. macropomum (♀). In this study, 25 specimens of C. macropomum and 20 specimens of the hybrid P. orinoquensis (♂) × C. macropomum (♀), were analyzed, respectively. The method "Truss protocol" or "trusses" was used. LASSO model achieved to reduce the mean squared error. The final model obtained contains only seven covariates. LASSO model fitted on the morphological covariation patterns between specimens of C. macropomum and the hybrid P. orinoquensis (♂) × C. macropomum (♀) showed a good fit and allowed to correctly classify most of the specimens. Differences were observed in the area of the head and the anterior part of the fish evidenced in covariates associated with hydrodynamic abilities and with foraging. 
%U https://jbiochemtech.com/article/lasso-model-for-morphological-covariation-patterns-between-colossoma-macropomum-and-piaractus-orinoq-fzw9ikliy1yo0gm