title: Optimization of harvesting age in an integral age-dependent model of population dynamics.
abstract: The paper deals with optimal control in a linear integral age-dependent model of population dynamics. A problem for maximizing the harvesting return on a finite time horizon is formulated and analyzed. The optimal controls are the harvesting age and the rate of population removal by harvesting. The gradient and necessary condition for an extremum are derived. A qualitative analysis of the problem is provided. The model shows the presence of a zero-investment period. A preliminary asymptotic analysis indicates possible turnpike properties of the optimal harvesting age. Biological interpretation of all results is provided.
authors.affiliation: Prairie View A&M University, Box 4189, Prairie View, TX 77446, USA. natalia_hritonenko@pvamu.edu
authors.forename: Natali
authors.initials: N
authors.lastname: Hritonenko
authors.forename: Yuri
authors.initials: Y
authors.lastname: Yatsenko
mesh_terms: D000367:Age Factors; D000818:Animals; D016014:Linear Models; D008954:Models, Biological; D011157:Population Dynamics