RIVAS, DANNY VILLEGAS and PINO, MANUEL MILLA and BEAS, TOMÁS RODRÍGUEZ and LOZA, MIRYAM LORA and VASQUEZ, MARTÍN GRADOS and CARRERA, CESAR OSORIO and YSA, RICARDO SHIMABUKU and SANTOS, RIVER CHÁVEZ and CALDERÓN, LUIS RAMÍREZ and CASANA, YDALIA VELÁSQUEZ and CAMACHO, WILFREDO RUIZ and CASAS, HUGO EGOCHEAGA and CHAMIQUIT, CLELIA JIMA and ROBLES, ROBERTO PACHECO and CAMPAÑA, ZADITH GARRIDO and BAZAN, ERICK DELGADO (2021) MORPHOMETRIC COMPARISON OF CHARACIDAE FISH WHEN n < p. UTTAR PRADESH JOURNAL OF ZOOLOGY, 41 (24). pp. 76-83.
Full text not available from this repository.Abstract
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 Colossoma macropomum and the hybrid C. macropomum (♀) x P. orinoquensis (♂). In this study, 25 specimens of C. macropomum and 20 specimens of the hybrid C. macropomum (♀) x P. orinoquensis (♂), respectively, were analyzed. The method "Truss protocol" or "trusses" Strauss and Bookstein (1982) 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 C. macropomum (♀) x P. orinoquensis (♂) showed a good fit and allowed to correctly classify most of the specimens. Differences were observed in the area of the head and in the anterior part of the fish evidenced in covariates associated with hydrodynamic abilities and with foraging.Morphometry
| Item Type: | Article |
|---|---|
| Subjects: | OA Open Library > Biological Science |
| Depositing User: | Unnamed user with email support@oaopenlibrary.com |
| Date Deposited: | 24 Nov 2023 04:31 |
| Last Modified: | 24 Nov 2023 04:31 |
| URI: | http://archive.sdpublishers.com/id/eprint/1988 |
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