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Articles by T.K. Kar
Total Records ( 4 ) for T.K. Kar
  T.K. Kar and H. Matsuda
  This study provides an overview of the bioeconomic analysis and different management techniques for fisheries. A variety of bioeconomic analysis that affect the fishery as a whole is examined. It also presents the potential benefits and draw backs of different management tools. In general, the study finds that some management tools are equivalent and suggests that combinations of some management tools may be more useful for fisheries management. We also analyze optimal harvesting policy in a general framework of both single species and multi species fishery.
  T.K. Kar and U.K. Pahar
  This research is devoted to the study of the dynamical behavior and harvesting problems of a prey-predator fishery, for which a protective patch is established for the prey species. Thresholds, equilibria and stabilities are determined for the system. The possibilities of existence of bionomic equilibrium is also discussed. The optimal harvesting policy is studied and the solution is derived in the equilibrium case by using Pontryagin`s maximal principle. Some numerical simulations are taken to illustrate the established results.
  T.K. Kar and H. Matsuda
  In this research we study the dynamics of a prey-predator system, where predator has two stages, a juvenile stage and a mature stage and are harvested by two different groups of fishermen. The existence of possible steady states along with their local and global stability is discussed. We obtained the condition for permanence of the system. We analyzed optimum management of these fisheries and determined optimal levels of stock, effort and catch using a hypothetical set of parameter values.
  T.K. Kar and H. Matsuda
  Optimum management of a particular fishery is discussed. For this purpose a multifleet deterministic bioeconomic model is developed and applied. It is illustrated the way in which an effort tax can achieve an optimum exploitation. Using the data from the North East Atlantic Cod (NEAC) fishery, optimum levels of stock, effort and tax by fleets are determined.
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