Lack of Fishery Successors: Analytical Methods for Identifying the Problem Structure and for Evaluating Countermeasures

Abstract

Toward clarifying structural factors in the lack of fishery successors and devising countermeasures to such lack, this paper analyzes the applicability of AHP (Analytic Hierarchy Process). The DEMATEL (DEcision MAking Trial and Evaluation Laboratory) method, based on a pair comparison questionnaire survey, was used to clarify the factors constituting the structure of the problem. The ISM (Interpretive Structural Modeling) method examined the relationship between the causes and effects of the factors identified by DEMATEL by setting the boundaries of 1 ("yes") and 0 ("no") for the data obtained by DEMATEL.AHP was then used to weight three evaluation criteria (industrial, cultural, regional maintenance), and then to rank them. The resulting weighting was used to rank the effectiveness of each remedial measure in terms of each of the evaluation criteria.

A Study of the System's Hierarchical Structure Through Integration of Dematel and ISM

“…It has already been applied into many practices after it was introduced by Geneva Research Centre of the Battelle Memorial Institute [2,3], such as ranking factors [5], clarifying problem's factors [6], fonding out the main and the secondary problems [7], and analyzing structures of the problems [5,[8][9]. The ISM can be judiciously employed for getting better insights into the system under consideration [10], and it has been already utilized to analyze the complex systems, for example, it was used to act as a tool for imposing order and direction on the complexity of relationships among elements of a system [11,12], to develop a hierarchy of actions required to achieve the future objective of waste management in India [13], to analyze some of the important vendor selection criteria [14], and to examined the relationships between the factors [6] etc.…”