Resumen de Overlap in the type and size of the prey that compose the diet of the Pacific sardine "Sardinops caeruleus" (Girard, 1856), thread herring "Opisthonema libertate" (Gunther, 1867) and northern anchovy "Engraulis mordax" (Girard, 1856) in the Gulf of California
Juana López Martínez, Manuel O. Nevárez Martínez, Raúl E. Molina
- español
Se presentan los resultados del análisis de traslapo en la dieta de la sardina monterrey "Sardinops caeruleus", la anchoveta norteña "Engraulis mordax" y la sardina crinuda "Opisthonema libertate". Éstas son las especies de pelágicos menores de mayor importancia económica en la pesquería que se desarrolla en el Golfo de California. Si bien la dieta de estas especies es muy similar, el traslapo sólo fue significativo entre la anchoveta norteña y la sardina crinuda. Sin embargo, debido a que estas dos especies no se traslapan espacialmente en el Golfo de California, la posibilidad de competencia por alimento entre ellas se considera poco probable.
- English
We present the results of the analysis of overlap in the diet of the Pacific sardine "Sardinops caeruleus", the northern anchovy "Engraulis mordax" and the thread herring "Opisthonema libertate". These are the most commercially important species of small pelagic fishes in the fishery that is developed in the Gulf of California. Although the diet of these species is very similar, the overlap is only significant between the northern anchovy and the thread herring. As these two species do not overlap spatially in the Gulf of California, the possibility of competition for food between them is considered unlikely.
