DISTRIBUCION, ABUNDANCIA Y PATRON REPRODUCTIVO DE PSEUDUPENEUS GRANDISQUAMIS GILL, 1863 (PERCIFORMES: MULLIDAE) Y UROBATIS HALLERI COOPER, 1863 (RAJIFORMES: UROLOPHIDAE) EN EL GOLFO DE CALIFORNIA
The fish Pseudupeneus grandisquamis and round stingrays Urobatis halleri, are very frequent species in the fauna of accompaniment of the shrimp from the continental platform of Sonora, Sinaloa and Nayarit. The organisms were collected with a shrimp trawl of 30 m length abroad a fleet from Sonora. Th...
| Autores: | , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2011 |
| País: | México |
| Institución: | Universidad Autónoma de Nayarit |
| Repositorio: | Repositorio Institucional Aramara de la UAN |
| Idioma: | español |
| OAI Identifier: | oai:dspace.uan.mx:123456789/546 |
| Acceso en línea: | http://dspace.uan.mx:8080/jspui/handle/123456789/546 |
| Access Level: | acceso abierto |
| Palabra clave: | Pseudupeneus grandisquamis Urobatis halleri distribución abundancia reproducción Golfo de California distribution and abundance reproduction Gulf of California CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA [6] |
| Sumario: | The fish Pseudupeneus grandisquamis and round stingrays Urobatis halleri, are very frequent species in the fauna of accompaniment of the shrimp from the continental platform of Sonora, Sinaloa and Nayarit. The organisms were collected with a shrimp trawl of 30 m length abroad a fleet from Sonora. The network operated within a depth of 9 to 96 m from September 2004 till March 2005. Lengths methods were used. 2463 fish of the P. grandisquamis were collected and 1123 of the U. halleri with sizes between 20 to 230 mm and 30 to 460 mm total length (TL) respectively. Both species showed high distribution and group type in all the study zone. The biggest densities happened in lower depths between 9 and 38 m. The biggest abundances was in October for P. gradisquamis and in December for U. halleri. The dispersion of organisms showed a relationship inversely proportional with the depth, the abundance of organisms diminishes with the increase of the depth. The distribution was heterogeneous with the patterns of the population’s group distribution. The size of first sexual maturity of P. grandisquamis was of 130 mm LT and the recruitment pattern was found to occur throughout the spring and autumn, and the recruitment of U. halleri was found to occur in the summer. Both species share the same habitat, both in coexistence in the demersal marine ecosystem of the Gulf of California. |
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