| Revista: | Biocell |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000365997 |
| ISSN: | 0327-9545 |
| Autors: | Arredondo Figueroa, José Luis1 Núñez García, Laura Georgina2 Heredia Guzmán, Paloma Adriana3 Ponce Palafox, Jesús T4 |
| Institucions: | 1Universidad Autónoma de Aguascalientes, Centro de Ciencias Agropecuarias, Aguascalientes. México 2Universidad Autónoma Metropolitana, Departamento de Hidrobiología, Iztapalapa, Distrito Federal. México 3Universidad Nacional Autónoma de México, Facultad de Estudios Superiores Iztacala, Tlalnepantla, Estado de México. México 4Universidad Autónoma de Nayarit, Centro de Innovación y Transferencia Tecnológica, Tepic, Nayarit. México |
| Any: | 2012 |
| Període: | Dic |
| Volum: | 36 |
| Número: | 3 |
| Paginació: | 105-111 |
| País: | Argentina |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, analítico |
| Resumen en inglés | Chirostoma jordani is a native annual species inhabiting lacustrine waters of the Central Mexico Plateau. It is widely distributed and is currently facing high environmental pressures. Five experiments were performed to study the reproductive performance of this species. Four of the experiments were conducted in 270-L indoor recirculation tanks. Two males and one female at the first stage of reproduction were included in each test. A photoperiod of 14 light hours and 10 dark hours was used. In a fifth experiment, 10 females and 15 males were kept in an outdoor 3,000-L recirculation tank under natural photoperiod. The number of spawns, fertilised eggs and 30-day-old juveniles were counted and the survival rate was calculated. The results indicated significant differences (P<0.05) between treatments. Higher spawn numbers and greater egg production were observed under controlled photoperiod, and higher numbers of juveniles and a higher survival rate were observed under natural photoperiod. The trials exhibited different patterns of egg production during the experiment. The egg production in the natural-photoperiod trials followed a polynomial curve model. In contrast, the trials under the controlled photoperiod showed an irregular pattern of increases and decreases in egg production |
| Disciplines | Biología |
| Paraules clau: | Peces, Reproducción y desarrollo, Pejerrey, Chirostoma jordani, Comportamiento reproductivo, Fotoperíodo, México |
| Keyword: | Biology, Fish, Reproduction and development, Silverside, Chirostoma jordani, Reproductive performance, Photoperiod, Mexico |
| Text complet: | Texto completo (Ver PDF) |
