La ración de mantenimiento, la densidad de mantenimiento y la eficiencia de crecimiento de Engraulis ringens y Sardinops sagax como una medida de su potencia ecológica

Zoila Villavicencio; Peter Muck

Autores/as

Zoila Villavicencio Instituto del Mar del Perú
Peter Muck Instituto del Mar del Perú

Palabras clave:

Anchoveta, Tallas De Peces, Metabólismo, Alimentación, Reproducción

Resumen

Presentamos en este estudio resultados calculados sobre la potencia ecológica de la anchoveta y sardina peruana mediante el procesamiento de datos de los gastos metabólicos, velocidad de natación.e ingestión de alimento en relación a diferentes tallas de peces, temperaturas y densidades de alimento. Como medida de la potencia ecológica hemos calculado: (1) ración de mantenimiento, (2) la eficiencia de crecimiento y (3) densidad del alimento para mantenimiento. (para larvas). Asumiendo un alimento mixto de fito y zooplancton (1 g peso húmedo = 1000 cal) y una eficiencia de asimilación de 0.7 tenemos para la ración de mantenimiento expresada en calorías por individuo por día y en porcentaje del peso húmedo por día.

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