EVALUATION OF THE USE OF PLANT AND SYNTHETIC SUBSTRATES IN SPAWNING, EGG VIABILITY AND SURVIVAL OF FINGERLINGS OF Chirostoma humboldtianum
Shortfin silverside Chirostoma is an endemic fish of Mexico, a member of the Family Atherinidae that requires strategies to facilitate its management in captivity and to increase its production, due to its economic importance and commercial demand. Therefore the selection of C. humboldtianum on diff...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2018 |
| País: | México |
| Institución: | Universidad Autónoma Metropolitana |
| Repositorio: | Redalyc-UAM |
| OAI Identifier: | oai:redalyc.org:95978831001 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=95978831001 |
| Access Level: | acceso abierto |
| Palabra clave: | Veterinaria spawning breeding reproduction Shortfin silverside fish plants and synthetic substrates |
| Sumario: | Shortfin silverside Chirostoma is an endemic fish of Mexico, a member of the Family Atherinidae that requires strategies to facilitate its management in captivity and to increase its production, due to its economic importance and commercial demand. Therefore the selection of C. humboldtianum on different substrates of plant and synthetic origin in spawning, egg viability and survival of fingerlings of this species was compared. The study was conducted in circular ponds 3 m Ø pit provided with plants including Ceratophyllum demersum, Eichhornia crassipes and Cassuarina equisetifolia, and synthetic substrates such as nylon fibers, Agave spp and polyethylene fibers for spawning. The proportion of eggs and the viability of eggs and fingerlings on each repetition substrate was recorded. The results showed that the selection of spawning substrates was significant in E. crassipes and C. equisetifolia (P <0.05), followed by the nylon f ibers. With respect to the values of viability eggs and fingerlings were higher in E. crassipes, C. equisetifolia, and nylon fibers (P <0.05). The alternative use of substrates in the reproduction, spawning and rearing of C. humboldtianum in captivity is possible, and aquatic vegetation could replace with synthetic substrates that are adequate and that perform the nesting and management of this species of commercial interest. |
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