Assessment Of Pelagic Fisheries Stock And Value In Minnan Bank Ground

China is the biggest fishery harvest country in the world,which occupy 16%of total world ocean catch.From 1950s,overfishing,destructive exploiting pracitces and policy failure have led to serious resource depletion.Systematic and accurate assessment of fishery stock and its value is the base of sound fishery policy making, however,available fishery statistical data provided by current fishery authority are insufficient to the practical research needs.How to get a relative complete and objective social-economic fishery data,and how to build a set of applicable methods and models to assess fishery stock and its value under the condition of limited data have challenged fishery academic and management fields for several decades.This dissertation presents a systematic assessment of pelagic fisheries stock and its value in Minnan bank ground employing the methods and theories of fisheries resources and natural resource economic,and contributes to the literature on fishery resource management in several ways.Firstly,the study demonstrates the theory and practice of fishery recourses assessment in both international and domestic,and establishes a integrated approachable fishery assessment method and models under the condition of limited data,including surplus production models,bio-economics models,resources value evaluation models and resources depletion evaluation models.Secondly,the study collects innovatively 21 years time series data,including catch,effort,unit cost and unit landing price,etc.Because the fishery investigation and statistics provided by current fishery management department are unable to meet practical research needs,the author found the special corresponding relation between light seine fishery and pelagic fisheries by spot investigation,checking statistical books and literatures,and expertise consultancy,to accomplish the data collectionThirdly,the dissertation identifies optimal assessment models of research sit.The study inputs the collected data into established models;estimates the parameters of every possible model using the E-views software.The optimal assessment models of pelagic fisheries stock and value in Minnan bank ground are identified by comparing the statistical test variables and parameters.Fourthly,the study assesses the pelagic fisheries stock and value in Minnan bank ground.This thesis put the 21 years time series data into identified optimal models,to value pelagic fisheries stock systematically,which included the condition of different property right,assessment of different effort,catch and stock under static and dynamic equilibrium,and the depletion of fishery stock value.Lastly,the study proposes the possible fishery polices options according to the research results and natural and socioeconomic situations of Minnan bank ground.