Crecimiento y supervivencia de Patallus mollis bajo dos niveles de densidad en sistema suspendido en el Centro de Acuicultura la Arena- FONDEPES
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Date
2025
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Universidad Nacional de Trujillo
Abstract
El objetivo de esta investigación fue determinar el crecimiento y supervivencia de Patallus mollis bajo dos niveles de densidad en sistema suspendido en el Centro de Acuicultura La Arena- FONDEPES, para lo cual se distribuyó 210 ejemplares en dos tratamientos de densidad, T1 con una densidad 7 ind/piso y T2 con 14 ind/piso con dos repeticiones. Se realizó muestreos quincenales de talla, peso húmedo y supervivencia de P. mollis y se registró los parámetros fisicoquímicos de temperatura, oxígeno, pH, salinidad, conductividad eléctrica y transparencia de la zona de cultivo a 9°21'35.35"S 78°25'28.53"O. El T1 fue el que presentó un mayor incremento en talla de 0,71 cm, a comparación del T2 que fue de 0,28 cm. El crecimiento en peso de P. mollis fue superior en T2, con una ganancia de peso media de 8,45 g, mientras que, en el T1 fue de 7,84 g. Asimismo, se presentó una supervivencia del 97 (T1) y 99 % (T2). Sin embargo, no se encontró diferencias significativas en cuanto a talla y peso de los dos tratamientos. La temperatura del aire fue 17,8 °C y del agua 17,2 °C, el oxígeno disuelto fue 9,6 mg/L, el pH 7,6, la salinidad 33,0 ppt, la conductividad eléctrica 54,9 mS/cm y la transparencia 4,2 m, en la playa la Arena. Se concluyó que es viable trabajar con densidades de 14 ind/piso en el cultivo de P. mollis.
The objective of this research was to determine the growth and survival of Patallus mollis under two density levels in a suspended system at the Centro de Acuicultura La Arena- FONDEPES, for which 210 specimens were distributed in two density treatments, T1 with a density of 7 ind/floor and T2 with 14 ind/floor with two replicates. Biweekly sampling of size, wet weight and survival of P. mollis was carried out and the physicochemical parameters of temperature, oxygen, pH, salinity, electrical conductivity and transparency of the culture area at 9°21'35.35 “S 78°25'28.53 ”W were recorded. T1 presented the greatest increase in length of 0,71 cm, compared to T2, which was 0,28 cm. Growth in weight of P. mollis was higher in T2, with an average weight gain of 8,45 g, while in T1 it was 7,84 g. Survival was 97 (T1) and 99 % (T2). However, no significant differences were found in the length and weight of the two treatments. Environmental temperature was 17,8 °C and water temperature 17,2 °C, dissolved oxygen was 9,6 mg/L, pH 7,6, salinity 33,0 ppt, electrical conductivity 54,9 mS/cm and transparency 4,2 m, at La Arena beach. It was concluded that it is feasible to work with densities of 14 ind/floor in the culture of P. mollis.
The objective of this research was to determine the growth and survival of Patallus mollis under two density levels in a suspended system at the Centro de Acuicultura La Arena- FONDEPES, for which 210 specimens were distributed in two density treatments, T1 with a density of 7 ind/floor and T2 with 14 ind/floor with two replicates. Biweekly sampling of size, wet weight and survival of P. mollis was carried out and the physicochemical parameters of temperature, oxygen, pH, salinity, electrical conductivity and transparency of the culture area at 9°21'35.35 “S 78°25'28.53 ”W were recorded. T1 presented the greatest increase in length of 0,71 cm, compared to T2, which was 0,28 cm. Growth in weight of P. mollis was higher in T2, with an average weight gain of 8,45 g, while in T1 it was 7,84 g. Survival was 97 (T1) and 99 % (T2). However, no significant differences were found in the length and weight of the two treatments. Environmental temperature was 17,8 °C and water temperature 17,2 °C, dissolved oxygen was 9,6 mg/L, pH 7,6, salinity 33,0 ppt, electrical conductivity 54,9 mS/cm and transparency 4,2 m, at La Arena beach. It was concluded that it is feasible to work with densities of 14 ind/floor in the culture of P. mollis.
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Keywords
Patallus mollis, densidad, crecimiento, supervivencia, sistema suspendido