The Journal of Fisheries Business Administration (수산경영론집)

The Korean Society of Fisheries Business Administration (한국수산경영학회)
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Effects of Climate Change on Purple Laver Farming in Maro-hae (Jindo-gun and Haenam-gun), Republic of Korea and Countermeasures

기후변화가 마로해의 김 양식에 미치는 영향 및 대응방안

  • Kim, Tae-Hyung (Institute of Fishing village & Aquaculture, Chonnam National University) ;
  • Shin, Jong-Ahm (General Director of Technology, Underwater Ecology Institute) ;
  • Choi, Sang-Duk (Faculty of Marine Technology, College of Fisheries & Ocean Science, Chonnam National University)
  • Received : 2021.06.04
  • Accepted : 2021.06.29
  • Published : 2021.06.30
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Abstract

Global warming affects critical natural resources, one of which is the oceans that occupy 70% of the total cover of the earth. In other words, ocean warming is a subset of global warming which needs to be addressed urgently. Purple laver (pyropia spp.) is one of the most vulnerable items to climate change although it is a major export product of Korean fisheries. The purpose of this study is to analyze the causality of how climate change caused by global warming affects the increase or decrease of PLP (purple laver production). The target area for analysis was set to Maro-hae between Jindo-gun and Haenam-gun. We selected marine environmental factors and meteorologic factors that could affect PLP as variables, as well as co-integration tests to determine long-term balance, and the Granger causticity tests. As a result, PLP and marine environmental factors WT (water temperature), pH, and DO confirmed that long-term equilibrium relationships were established, respectively. However, there is only causality with WT and it is confirmed that there is only a correlation between pH and DO (dissolved oxygen). There was no long-term equilibrium relationship between PLP and HDD (heating degree days) and there is a causal effect that HDD affects PLP; however, it was less clear than that of WT. The relationship between PLP and RF (rainfall), WS (wind speed), SS (percentage of sunshine), and FF (farm facilities) was all balanced in the long term, and causality exists. Based on the results of the analysis, policy proposals were made.

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