Por favor, use este identificador para citar o enlazar este ítem: http://repositoriodigital.ipn.mx/handle/123456789/12921
Título : Interannual and seasonal variation of dolphinfish (Coryphaena hippurus) catch rates in the southern Gulf of California, Mexico
Autor : Zúñiga Flores, Marcela S
Ortega García, Sofía
Klett Traulsen, Alexander
Palabras clave : Sea surface temperature
Seasonal and interannual
Coryphaena hippurus dolphinfish
Cabo San Lucas
variations of catch rates
Fecha de publicación : 2008
Editorial : Fisheries Research
Resumen : Dolphinfish (Coryphaena hippurus) is found in tropical and subtropical waters, and is an important sport and commercial species. The migrations of this species are associated with sea surface temperature changes and therefore climatic events such as an El Ni ˜no have an effect on its distribution in the PacificOcean. Our objectives were to determine the seasonal and interannual variations in catch rate and to correlate these with sea surface temperature. The database used in this study was the catch rate (number of organisms/trip) made by the recreational fleet that operated in Cabo San Lucas, B.C.S. from 1990 to 2000. To identify trends that may exist due to fluctuations in tourism, which could generate a bias in the use of the catch rates as relative indices of abundance, we analysed the daily data base of the effort (number of trips) that were recorded by the harbor authorities. Significant differences were found in the monthly average of effort during summer–autumn, which is the hurricane season in this area. The monthly average stayed above 1700 trips. Although interannual variation was not significant (ANOVA, P > 0.05), the seasonal effect showed significant differences with the highest average catch rates in summer–autumn (ANOVA, P < 0.05). A significant relationship between catch rate and sea surface temperature was found (P < 0.05), with a correlated coefficient value of r = 0.78
URI : http://www.repositoriodigital.ipn.mx/handle/123456789/12921
ISSN : 0165-7836
Aparece en las colecciones: Artículos

Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Zuniga_Flores_Marcela_S._2008_Fisheries_Research_2070.pdf55.26 kBAdobe PDFVisualizar/Abrir

Los ítems de DSpace están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.