The pejerrey, is a species introduced to Lake Titicaca from the continental waters of Argentina. The study was carried out at the Titicaca Trout Fishing Company, located in front of the city of Pomata, Puno Region, at an altitude of 3882 msnm. The objective of this study was to evaluate the growth of Odontesthes bonariensis from two batches (A and B) grown in Titicaca, Peru, in floating cages developed in 2018 and 2019. Silverside juveniles of 77.9 mm in length were used. average 120 days old, sowing a total of 8500 individuals (batch A = 5300 and batch B = 3200), from artificial spawning of broodstock confined in floating cages. After 360 days in batch A, a maximum total length of 230.0 ± 2.10 mm was achieved, total weight 80.0 ± 1.73 g, the feed conversion was found at 1.7 ± 1.39. In batch B, a maximum total length of 231.7 mm ± 2.70 was obtained, total weight 83.07 ± 1.67 g and t...

The pejerrey, is a species introduced to Lake Titicaca from the continental waters of Argentina. The study was carried out at the Titicaca Trout Fishing Company, located in front of the city of Pomata, Puno Region, at an altitude of 3882 msnm. The objective of this study was to evaluate the growth of Odontesthes bonariensis from two batches (A and B) grown in Titicaca, Peru, in floating cages developed in 2018 and 2019. Silverside juveniles of 77.9 mm in length were used. average 120 days old, sowing a total of 8500 individuals (batch A = 5300 and batch B = 3200), from artificial spawning of broodstock confined in floating cages. After 360 days in batch A, a maximum total length of 230.0 ± 2.10 mm was achieved, total weight 80.0 ± 1.73 g, the feed conversion was found at 1.7 ± 1.39. In batch B, a maximum total length of 231.7 mm ± 2.70 was obtained, total weight 83.07 ± 1.67 g and t...

The pejerrey, is a species introduced to Lake Titicaca from the continental waters of Argentina. The study was carried out at the Titicaca Trout Fishing Company, located in front of the city of Pomata, Puno Region, at an altitude of 3882 msnm. The objective of this study was to evaluate the growth of Odontesthes bonariensis from two batches (A and B) grown in Titicaca, Peru, in floating cages developed in 2018 and 2019. Silverside juveniles of 77.9 mm in length were used. average 120 days old, sowing a total of 8500 individuals (batch A = 5300 and batch B = 3200), from artificial spawning of broodstock confined in floating cages. After 360 days in batch A, a maximum total length of 230.0 ± 2.10 mm was achieved, total weight 80.0 ± 1.73 g, the feed conversion was found at 1.7 ± 1.39. In batch B, a maximum total length of 231.7 mm ± 2.70 was obtained, total weight 83.07 ± 1.67 g and t...

The test was carried out in the month of March 2021 at the Continental Laboratory of Puno - IMARPE, in order to determine the effect of the use of the microalga Chlorella vulgaris as food at the beginning of the ontogeny of Orestias luteus, a test was carried out with 1600 larvae kept in two 45 L aquariums. One aquarium with Chlorella vulgaris (green water), and the other aquarium without Chlorella vulgaris (clear water). It is reflected that during the first 7 days the larvae fed and maintained with microalgae presented higher survival due to the high nutritional level that the microalgae presents, such as docosahexaenoic acid (DHA), apparently influenced the development of the Orestias Luteos larvae. Likewise, when added directly to the aquariums, the microalgae exerted a positive influence on the physiological state of Orestias luteus larvae, which translates into the obtaining of hig...

El objetivo de la investigación fue determinar la alimentación, crecimiento y supervivencia de Odontesthes bonariensis hasta la etapa de alevines en condiciones de laboratorio, utilizando tres tipos de alimento vivo (Chlorella vulgaris, Artemia salina y Daphnia pulex). Los objetivos específicos fueron; determinar la viabilidad alimentaria suministrado por tres tipos de alimento vivo, determinar la frecuencia de aparición de cada presa y evaluar la tasa de crecimiento hasta la etapa de alevinos de pejerrey con tres tipos de alimento vivo. La metodología para el primer objetivo consistió en obtener larvas de pejerrey desde vasos Chasse (Mc Donald) la cantidad de 900 unidades, estas fueron separados en tres matraces de vidrio de un litro a los cuales se proporcionó tres tipos de alimento vivo; Chlorella vulgaris, Artemia salina y Daphnia pulex por un periodo de 11 días, en donde la ...

The pejerrey, is a species introduced to Lake Titicaca from the continental waters of Argentina. The study was carried out at the Titicaca Trout Fishing Company, located in front of the city of Pomata, Puno Region, at an altitude of 3882 msnm. The objective of this study was to evaluate the growth of Odontesthes bonariensis from two batches (A and B) grown in Titicaca, Peru, in floating cages developed in 2018 and 2019. Silverside juveniles of 77.9 mm in length were used. average 120 days old, sowing a total of 8500 individuals (batch A = 5300 and batch B = 3200), from artificial spawning of broodstock confined in floating cages. After 360 days in batch A, a maximum total length of 230.0 ± 2.10 mm was achieved, total weight 80.0 ± 1.73 g, the feed conversion was found at 1.7 ± 1.39. In batch B, a maximum total length of 231.7 mm ± 2.70 was obtained, total weight 83.07 ± 1.67 g and t...

The test was carried out in the month of March 2021 at the Continental Laboratory of Puno - IMARPE, in order to determine the effect of the use of the microalga Chlorella vulgaris as food at the beginning of the ontogeny of Orestias luteus, a test was carried out with 1600 larvae kept in two 45 L aquariums. One aquarium with Chlorella vulgaris (green water), and the other aquarium without Chlorella vulgaris (clear water). It is reflected that during the first 7 days the larvae fed and maintained with microalgae presented higher survival due to the high nutritional level that the microalgae presents, such as docosahexaenoic acid (DHA), apparently influenced the development of the Orestias Luteos larvae. Likewise, when added directly to the aquariums, the microalgae exerted a positive influence on the physiological state of Orestias luteus larvae, which translates into the obtaining of hig...