Diferencias morfométricas por sexo de tres especies del genero Opisthonema (Psices: Clupeidae) de la Costa del Pacifico, Costa Rica
Fecha
1990-01-01
Autores
Víquez, Rigoberto
Rodrígez, Jorge A.
Palacios, José A.
Protti, Maurizio
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Editor
Universidad Nacional [Costa Rica]
Resumen
Se comparan algunas variables morfométricas en los dos sexos de tres especies de Opisthonema (O. libertate, O. medirastre y O. bullerri) provenientes de las costa Pacífica de Costa Rica. Las hembras como los machos revelaron diferencias significativas en el crecimiento relativo, lo cual se evidenció por el análisis de varianza, el análisis de alometría e isometría, y en la variación de crecimiento relativo.
A biometric study conducted with the genus Opisthonema from the Pacific Coast of Costa Rica is presented. The research was done during 1985 and 1986. Three species: O. libertate, O. medirastre and O. buller, were sexually characterized using morphometric variables. Field date were used to elaborate a correlation matrix, and biometric indices were calculated as a function of total length. It was found that growh presented significant differences between sexes and species.
A biometric study conducted with the genus Opisthonema from the Pacific Coast of Costa Rica is presented. The research was done during 1985 and 1986. Three species: O. libertate, O. medirastre and O. buller, were sexually characterized using morphometric variables. Field date were used to elaborate a correlation matrix, and biometric indices were calculated as a function of total length. It was found that growh presented significant differences between sexes and species.
Descripción
Palabras clave
BIOMETRÍA, CRECIMIENTO (FISIOLOGIA), OPISTHONEMA LIBERTATE, PECES, TAXONOMIA, TAXONOMY, FISH