This work presents the length-weight relationships of 14 species of fish of the Napo River basin. Fish collections were carried out between 2012 and 2014, using gill nets and seine. A total of 1896 specimens, belonging to 14 species and five orders were analyzed. The allometric coefficient b ranged from 2.69 to 3.78. A new record of length-weight relationship is presented for Curimata cisandina (Allen, 1942). The comparisons with other Amazonian studies indicated differences in the parameters a and b of LWR with this study for the species Triportheus angulatus (Spix & Agassiz, 1829), Mylossoma duriventre (Cuvier, 1818), Roeboides myersii Gill, 1870 and Pellona castenaena Valenciennes, 1847 and only parameter b for Psectrogaster amazonica. The results presented in this work contribute to a better knowledge of fish resources in the region of the Peruvian Amazon, especially in the Napo ...

This work presents the length-weight relationships of 14 species of fish of the Napo River basin. Fish collections were carried out between 2012 and 2014, using gill nets and seine. A total of 1896 specimens, belonging to 14 species and five orders were analyzed. The allometric coefficient b ranged from 2.69 to 3.78. A new record of length-weight relationship is presented for Curimata cisandina (Allen, 1942). The comparisons with other Amazonian studies indicated differences in the parameters a and b of LWR with this study for the species Triportheus angulatus (Spix & Agassiz, 1829), Mylossoma duriventre (Cuvier, 1818), Roeboides myersii Gill, 1870 and Pellona castenaena Valenciennes, 1847 and only parameter b for Psectrogaster amazonica. The results presented in this work contribute to a better knowledge of fish resources in the region of the Peruvian Amazon, especially in the Napo ...

El cultivo en jaulas de banda, Myleus schomburgkii, alimentado con sacha inchi, Plukenetia volubilis, se realizó en el Centro de Investigación, Experimentación y Enseñanza- Piscigranja Quistococha de la Universidad Nacional de la Amazonia Peruana, ubicado en el km. 6 de la Carretera !quitos - Nauta, entre los meses de Agosto del 2008 a Febrero del2009. Se utilizaron un total de 12 jaulas de 1 m3 de volumen, se sembró banda negra a una densidad de 4 ind./jaula, con un peso promedio inicial de 26 g. y una longitud promedio de 10cm. Los peces fueron alimentados con sacha inchi, Plukenetia volubilis, con una tasa de alimentación de 4% de la biomasa y con una frecuencia alimenticia de tres veces al día durante los 3 primeros meses y durante los 3 meses siguientes con una frecuencia alimenticia de dos veces por día. Al final de los seis meses de cultivo, los peces de los tratamientos 1...