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Resumen del producto

Nevarez Martínez, M.O., E.A., Chávez Ortiz, M.Á., Cisneros Mata & D., Lluch Belda (1999). Modeling of the Pacific sardine Sardinops caeruleus fishery of the Gulf of California, Mexico. Fisheries Research. 41(3): 273-283. DOI: 10.1016/S0165-7836(99)00023-5.

Modeling of the Pacific sardine Sardinops caeruleus fishery of the Gulf of California, Mexico

Manuel Otilio Nevarez Martínez, Ernesto Aarón Chávez Ortiz, Miguel Ángel Cisneros Mata y Daniel Lluch Belda

We used a stochastic age-structured model with density-dependent recruitment to study the fishery and population dynamics of the Gulf of California Pacific sardine (Sardinops caeruleus) stock for the period 1972-1973 to 1989-1990. To determine the value of fishing mortality (F) which corresponds to the long-term optimum yield and cost-benefit ratio (C/B), we simulated fished population trajectories over a period of 50 years. Our results indicated a good fit between observed and predicted annual recruitment and catch. Quasiperiodic oscillations of a five year periodicity for an unfished population faded with increasing F. Maximum yield and C/B were obtained with F=0.475 and 0.275, and the simulated population began declining with F>=0.5 and >=0.3, respectively. It is proposed that F<0.25 would be adequate for this fishery.

Palabras clave: Specialist; Recruitment; sardinops caeruleus; Pacific sardine; catch; simulation

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