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| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Universidad de Córdoba
2017
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| Accesso online: | https://www.redalyc.org/articulo.oa?id=69353272005 https://www.redalyc.org/journal/693/69353272005/ https://www.redalyc.org/journal/693/69353272005/html/ https://www.redalyc.org/journal/693/69353272005/69353272005.epub https://www.redalyc.org/journal/693/69353272005/movil |
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| _version_ | 1866811827488292864 |
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| author | Mario Nieves-Soto |
| author_facet | Mario Nieves-Soto |
| contents | Effect of temperature and salinity on larval survival and development of Litopenaeus vannamei Mario Nieves-Soto José Bermudes-Lizárraga Alejandra Medina-Jasso Veterinaria larvae larvae crustacea crustacea saline waters Objetive. The combined effect of salinity (25, 30, 35, and 40psu) and temperature (25, 30, and 35oC) was evaluated on survival and development from nauplii V (NV) larvae until postlarvae (PL1) of Litopenaeus vannamei. Materials and methods. Four replicates were applied to each combination of salinity and temperature. The larvae were placed in 12 L beakers a density of 100larvae/L. Salinity was increased dissolving commercial salt without iodine, into marine water, whereas fresh filtered tap water was used to decrease the salinity from seawater. The NV were adapted at 35psu and 30°C during 30 minutes. Thereafter, were transferred at each experimental combination of salinity and temperature. Every 24 h, samples of larvae were obtained to determine in vivo their stage of development and survival. All data were analyzed using a two-way ANOVA. Results. Survival and larval development were significantly (p<0.05) affected by salinity, temperature and interaction of both factors. Maximum ultimate survival to PL1 was obtained at 30°C and 30psu (82.2%) followed by 30 and 35°C at 25psu (71.5 y 71.6%). The highest development at PL1 was found at 30°C and 30psu (6.76). Larval development during experiment was lower at 25°C as compared to 30 and 35°C, regardless of the salinity levels. Conclusions. The most adequate conditions for survival and larval development were obtained between 30-35°C and 25-30psu. 2017 artículo científico 0122-0268 https://www.redalyc.org/articulo.oa?id=69353272005 https://www.redalyc.org/journal/693/69353272005/ https://www.redalyc.org/journal/693/69353272005/html/ https://www.redalyc.org/journal/693/69353272005/69353272005.epub https://www.redalyc.org/journal/693/69353272005/movil en http://www.redalyc.org/revista.oa?id=693 Revista MVZ Córdoba application/pdf Universidad de Córdoba Revista MVZ Córdoba (Colombia) Num.2 Vol.22 |
| format | Artículo científico |
| id | redalyc_69353272005 |
| language | en |
| publishDate | 2017 |
| publisher | Universidad de Córdoba |
| spellingShingle | Effect of temperature and salinity on larval survival and development of Litopenaeus vannamei Mario Nieves-Soto Veterinaria larvae larvae crustacea crustacea saline waters Effect of temperature and salinity on larval survival and development of Litopenaeus vannamei Mario Nieves-Soto José Bermudes-Lizárraga Alejandra Medina-Jasso Veterinaria larvae larvae crustacea crustacea saline waters Objetive. The combined effect of salinity (25, 30, 35, and 40psu) and temperature (25, 30, and 35oC) was evaluated on survival and development from nauplii V (NV) larvae until postlarvae (PL1) of Litopenaeus vannamei. Materials and methods. Four replicates were applied to each combination of salinity and temperature. The larvae were placed in 12 L beakers a density of 100larvae/L. Salinity was increased dissolving commercial salt without iodine, into marine water, whereas fresh filtered tap water was used to decrease the salinity from seawater. The NV were adapted at 35psu and 30°C during 30 minutes. Thereafter, were transferred at each experimental combination of salinity and temperature. Every 24 h, samples of larvae were obtained to determine in vivo their stage of development and survival. All data were analyzed using a two-way ANOVA. Results. Survival and larval development were significantly (p<0.05) affected by salinity, temperature and interaction of both factors. Maximum ultimate survival to PL1 was obtained at 30°C and 30psu (82.2%) followed by 30 and 35°C at 25psu (71.5 y 71.6%). The highest development at PL1 was found at 30°C and 30psu (6.76). Larval development during experiment was lower at 25°C as compared to 30 and 35°C, regardless of the salinity levels. Conclusions. The most adequate conditions for survival and larval development were obtained between 30-35°C and 25-30psu. 2017 artículo científico 0122-0268 https://www.redalyc.org/articulo.oa?id=69353272005 https://www.redalyc.org/journal/693/69353272005/ https://www.redalyc.org/journal/693/69353272005/html/ https://www.redalyc.org/journal/693/69353272005/69353272005.epub https://www.redalyc.org/journal/693/69353272005/movil en http://www.redalyc.org/revista.oa?id=693 Revista MVZ Córdoba application/pdf Universidad de Córdoba Revista MVZ Córdoba (Colombia) Num.2 Vol.22 |
| title | Effect of temperature and salinity on larval survival and development of Litopenaeus vannamei |
| topic | Veterinaria larvae larvae crustacea crustacea saline waters |
| url | https://www.redalyc.org/articulo.oa?id=69353272005 https://www.redalyc.org/journal/693/69353272005/ https://www.redalyc.org/journal/693/69353272005/html/ https://www.redalyc.org/journal/693/69353272005/69353272005.epub https://www.redalyc.org/journal/693/69353272005/movil |