온실가스 고려 유무에 따른 근해어업의 업종별 생산성 변화 비교분석

Comparative Analysis of Productivity Changes by Gear of Offshore Fisheries with or without Considering Greenhouse Gas

As carbon neutral has emerged as a new paradigm for climate change globally, this study aims to analyze productivity changes in offshore fisheries with or without consideration of greenhouse gas(GHG) emissions and to present policy implications. As an analysis method, the Global Malmquist Luenberger productivity index and the Global Malmquist productivity index were used to analyze and compare the productivity by year and by fishery for offshore fisheries. In addition, the Mann-Whitney U test was adopted to see if the difference in productivity was statistically significant. As a result of the analysis, firstly the cumulative productivity increased by 4.3% excluding GHG emissions, but decreased by 3.89% including GHG emissions. Second, the cross-period average productivity rose 0.85% except for GHG emissions, but fell 0.79% containing GHG emissions. Third, the productivity of 13 gears in offshore fisheries decreased by 0.03∼7.3% including GHG emissions, and the differences in each gear’s productivity with or without consideration of GHG emissions were statistically significant within 10% significance level. Based on the analysis results, it was suggested that the new fishing vessel project, development of electric hybrid fishing vessels, and fishing vessel reduction project should be implemented to improve the productivity of offshore fisheries.