An Analytical Study on Fisheries Ecological Significance and Value of Jasan-Eobo

In this study, the fisheries ecological significance and value of Jasan-Eobo were explored and analyzed. This analysis was carried out in the light of the modern scientific theories, taking into account the level of knowledge at the time of the writing of the Jasan-Eobo more than 200 years ago. Jasan-Eobo argued that Pacific herring has different abundance cycles in different sea areas, suggesting the possibility of the existence of the sub-populations of Pacific herring. Based on the fact that the number of vertebrae was different in each sea area, Jasan-Eobo presented a method of identifying the sub-populations for the first time in the world, which is the first step in the assessment of fishery resources. Written for the purpose of helping professional scholars to study the laws of natural science, Jasan-Eobo took a scientific attitude that emphasized the direct experience of observing the inside of a fish through dissection. In addition, Jasan-Eobo not only provided information on marine organisms closely related to fish species in coastal ecosystems required for the Ecosystem-Based Fisheries Management (EBFM) approach, which has been actively developed since the 21st century, but also proposed the Indigenous, Traditional owner and Local community Knowledge (ITLK) method, which utilizes the knowledge and experience of fishermen to carry out the EBFM approach. Therefore, this study aims to introduce the important value of Jasan-Eobo in terms of marine fisheries ecology to the world.