In this study, we estimated the distribution density of giant jellyfish in coastal waters of Korea in 2023 and compared the occurrence of giant jellyfish over four years. In May, the giant jellyfish were mainly distributed in the waters of the Yangtze River outflow, and in July, they were highly distributed in the west of Jeju Island and near the south coast of Korea. In addition, when comparing the distribution densities of giant jellyfish in Korea over four years, both acoustic and sighting surveys showed that the highest density of jellyfish occurred in 2021.

서 론
재료 및 방법
    조사 해역
    음향조사 및 자료 분석
    음향자료 분석
    목시조사
    저층트롤조사
    조사방법별 밀도 분석
결과 및 고찰
    2023년 5월 동중국해역에서 대형 해파리의 밀도 분포
    2023년 5월 연근해해역에서 대형 해파리의 밀도 분포
    4년간 표층 대비 중·저층에 대한 분포 밀도 비교
    4년간 대형 해파리의 출현 변동
결 론
사 사
References

• 오선영(부경대학교 수산물리학과 학생) | Sunyoung OH (Student, Department of Fisheries Physics, Pukyong National University, Busan 48513, Korea)
• 김경연(국립수산과학원 기후변화연구과 연구원) | Kyoung-Yeon KIM (Researcher, Oceanic Climate and Ecology Research Division, National Institute of Fisheries Science, Busan 46083, Korea)
• 윤석현(국립수산과학원 기후변화연구과 연구원) | Seok-Hyun YOUN (Researcher, Oceanic Climate and Ecology Research Division, National Institute of Fisheries Science, Busan 46083, Korea)
• 이사라(부경대학교 수산물리학과 학생) | Sara LEE (Student, Department of Fisheries Physics, Pukyong National University, Busan 48513, Korea)
• 박근창(부경대학교 수산물리학과 학생) | Geunchang PARK (Student, Department of Fisheries Physics, Pukyong National University, Busan 48513, Korea)
• 오우석(부경대학교 저탄소해양생산기술연구소 연구원) | Wooseok OH (Scientist, Institute of Low-Carbon Marine Production Technology, Pukyong National University, Busan 48513, Korea)
• 이경훈(부경대학교 해양생산시스템관리학부 교수) | Kyounghoon LEE (Professor, Division of Marine Production System Management, Pukyong National University, Busan 48513, Korea) Corresponding author