The combined effects of salinity and temperature on the proximate composition and energetic value of spotted rose snapper Lutjanus guttatus (Steindachner, 1869)
Combined effects of temperature (25, 30 and 35°C) and salinity (15, 25, 35 and 45 g L - 1 ), on the body composition and energetic value in the juvenile spotted rose snapper ( Lutjanus guttatus ), were investigated over 90 days. Significant effects of temperature, salinity, and their interaction on...
| Autores: | , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2017 |
| País: | México |
| Institución: | Universidad Autónoma de Nayarit |
| Repositorio: | Redalyc-UAN |
| OAI Identifier: | oai:redalyc.org:175053482019 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=175053482019 |
| Access Level: | acceso abierto |
| Palabra clave: | Ciencias de la Tierra salinity temperature Lutjanus guttatus proximal analyses spotted rose snapper |
| Sumario: | Combined effects of temperature (25, 30 and 35°C) and salinity (15, 25, 35 and 45 g L - 1 ), on the body composition and energetic value in the juvenile spotted rose snapper ( Lutjanus guttatus ), were investigated over 90 days. Significant effects of temperature, salinity, and their interaction on body composition and energetic value were analyzed. Low tempera tures (25°C) significantly reduced the protein and increase lipid content in the body. In a temperature of 30°C, the highest energetic value was recorded, and in the highest salinity (45 g L - 1 ), the energetic value was reduced. The salinity of 15 has the h ighest growth, protein content, and energetic value. It was found that the optimal temperature - salinity combination for the best relationship of growth (3.8% d - 1 ), protein (21.9%), and lipid (4.9%) content, and energetic value (2.61 kJ g - 1 ) was at 30 to 32 .0°C and salinity of 35 g L - 1 . The effect of temperature was directly proportional to the increase in protein and inversely with the content of lipids in the body; salinity has its main effect negatively on these parameters in the highest salinity (45 g L - 1 ). |
|---|