In this study, the vertical distribution of giant jellyfish analyzed echo counting method and such survey methods as sighting and trawl were used to compare its density estimates. In May and July 2021, surveys were conducted in the East China Sea and the coastal waters of Korea. As a result, Nemopilema nomurai were evenly distributed in all water layers in East China Sea in May and July. When considered the correlation by each survey methods, it is possible to identify jellyfish in the surface area by sighting method and using sampling net; however, it has a low correlation with acoustic estimates due to marine environmental factor such as weather condition, wind and atmospheric pressure. Therefore, the result can be utilized by basic data when estimating jellyfish’s distribution patterns and density estimates from each survey methods hereafter.

서 론
재료 및 방법
    데이터 수집
    데이터 분석
결 과
    동중국해역에서 조사법에 따른 개체수 비교
    우리나라 연근해 해역에서 조사법에 따른 개체수 비교
고 찰
결 론
References

• 오선영(전남대학교 수산과학과) | Sunyoung OH (Department of Fisheries Sciences, Chonnam National University)
• 김경연(국립수산과학원 기후변화연구과) | Kyoung Yeon KIM (Oceanic Climate and Ecology Research Division, National Institute of Fisheries Science)
• 임월애(국립수산과학원 연구기획과) | Weol Ae LIM (Research and Development Planning Division, National Institute of Fisheries Science)
• 박근창(전남대학교 수산과학과) | Geunchang PARK (Department of Fisheries Sciences, Chonnam National University)
• 오현주(국립수산과학원 기후변화연구과) | Hyunjoo OH (Oceanic Climate and Ecology Research Division, National Institute of Fisheries Science)
• 오우석(전남대학교 수산과학과) | Wooseok OH (Department of Fisheries Sciences, Chonnam National University)
• 이경훈(전남대학교 해양생산관리학과) | Kyounghoon LEE (Department of Marine Production Management, Chonnam National University) Corresponding author