Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Al-Amin M. Ussif"'
Autor:
Ussif Rashid Sumaila, Al-Amin M. Ussif
Publikováno v:
Ecological Economics. 52:469-479
In this paper, a discrete-time model of regulated fisheries is developed. This class of models is interesting because most modern real-world fisheries are under some kind of regulation. The regulatory part of the fishery in this paper is partitioned
Publikováno v:
Journal of Bioeconomics. 7:179-195
This paper combines the elegant technique of Data Assimilation and a Monte Carlo procedure to analyze time series data for the North East Arctic Cod stock (NEACs). A simple nonlinear dynamic resource model is calibrated to time series data using the
Publikováno v:
Marine Resource Economics. 19:353-365
A biological model belonging to the Beverton-Holt age-structured family for the Norwegian spring spawning herring (Clupea harengus) (NSSH) is simulated, the outcome of which compares well with actual data on the fishery. This model is then combined w
Publikováno v:
Mathematical Biosciences. 182:67-79
A non-traditional approach of fitting dynamic resource biomass models to data is developed in this paper. A variational adjoint technique is used for dynamic parameter estimation. In the variational formulation, a cost function measuring the distance
Publikováno v:
Marine Resource Economics. 17:35-46
This paper has two main objectives. The first is to develop a dynamic model of commercial fisheries different from most existing models that assume optimizing behavior. The industry is assumed to have a well-defined index of performance. Based upon t
Publikováno v:
Journal of Bioeconomics. 4:39-48
A new approach of model parameter estimation is used with simulated measurements to recover both biological and economic input parameters of a natural resource model. The data assimilation technique is the variational adjoint method (VAM) for paramet