Korean Journal of Environmental Biology (환경생물)

Korean Society of Environmental Biology (한국환경생물학회)
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Characteristics of temporal-spatial variations of zooplankton community in Gomso Bay in the Yellow Sea, South Korea

서해 곰소만에 출현하는 동물플랑크톤 군집의 시·공간적 변동 특성

  • Young Seok Jeong (Department of Environmental Oceanography, Chonnam National University) ;
  • Min Ho Seo (Marine Ecology Research Center) ;
  • Seo Yeol Choi (Fishery Resource Management Research Institute Based on ICT, Chonnam National University) ;
  • Seohwi Choo (Interdisciplinary Program of Bigdata Fishery Resources Management, Graduate School, Chonnam National University) ;
  • Dong Young Kim (Marine Ecology Research Center) ;
  • Sung-Hun Lee (Department of Fishery, Marine, Industry, Tourism, and Leisure, Chonnam National University) ;
  • Kyeong-Ho Han (Interdisciplinary Program of Bigdata Fishery Resources Management, Graduate School, Chonnam National University) ;
  • Ho Young Soh (Department of Environmental Oceanography, Chonnam National University)
  • 정영석 (전남대학교 환경해양학과) ;
  • 서민호 ((주)바다생태연구소) ;
  • 최서열 (전남대학교 ICT수산자원관리연구소) ;
  • 추서휘 (전남대학교 빅데이터수산자원관리협동과정) ;
  • 김동영 ((주)바다생태연구소) ;
  • 이성훈 (전남대학교 수산해양산업관광레저융합학과) ;
  • 한경호 (전남대학교 빅데이터수산자원관리협동과정) ;
  • 서호영 (전남대학교 환경해양학과)
  • Received : 2023.11.20
  • Accepted : 2023.12.28
  • Published : 2023.12.31
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Abstract

To understand the spatiotemporal distribution pattern of zooplankton and the environmental factors influencing zooplankton abundance in Gomso Bay, major harvesting area of Manila clam (Venerupis philippinarum) in South Korea, zooplankton sampling was conducted four times in autumn (October 2022), winter (January 2023), early spring (March 2023), and spring (May 2023). Among the environmental factors of Gomso Bay, water temperature, chlorophyll a concentration (Chl-a), dissolved oxygen (DO), and pH observed different patterns, while salinity and suspended particulate matter(SPM) showed no significant statistical differences between the survey periods. The zooplankton in Gomso Bay occurred 33, 29, 27, and 29 taxonomic groups during each respective survey period. In October 2022 and May 2023, arthropod plankton were dominated, while in January and March 2023, protozoa were primarily dominant. Among the Arthropods, copepods including Acartia hongi, Paracalanus parvus s. l., Corycaeus spp., and Oithona spp. commonly found along Korean coastal areas of the Yellow Sea, were dominated. Cluster analysis based on zooplankton abundance indicated a single community (stable condition) in each season, attributed to low dissimilarity distances, while three distinct clusters (autumn, winter-early spring, spring) between seasons indicated a highly seasonal environment in Gomso Bay.

국내 바지락 주요 산지인 곰소만에서 동물플랑크톤의 시간적 변동과 동물플랑크톤 개체수에 미치는 환경요인 을 파악하기 위하여, 2022년 10월, 2023년 1월, 3월, 5월, 총 4번에 걸쳐 10개의 정점에서 동물플랑크톤 채집을 수행하였다. 곰소만의 환경요인들 중 수온, Chl-a, DO, pH는 조사 시기 간에 다른 양상을 보였으며, 염분과 SPM은 조사 시기 간의 통계적인 차이를 보이지 않았다. 곰소만의 동물플랑크톤은 각 조사 시기별로 33개, 29개, 27개, 29개의 분류군이 출현하였으며, 2022년 10월과 2023년 5월에는 절지동물이, 2023년 1월과 3월에는 원생동물이 주로 우점하였다. 절지 동물 중 가장 많은 비율을 차지하는 요각류(Copepods) 중 우점종은 Acartia hongi, Paracalanus parvus s. l., Corycaeus spp., Oithona spp.로, 국내 전 연안과 황해 연안에 주로 분포하는 종들이었다. 동물플랑크톤 개체수를 기반으로 수행한 집괴 분석 결과는 계절 내에서 정점 간 유사도가 낮아 군집이 구분되지 않는 안정된 상태(stable condition)였으며, 계절 간에서는 3개의 군집(가을, 겨울~초봄, 봄)으로 뚜렷하게 구분되어 이 해역은 계절성이 매우 강한 환경을 시사하고 있다.

Keywords

Acknowledgement

이 논문은 2023년 해양수산부 재원으로 해양수산기술진흥원(20180384, 수산전문인력양성), 고창군 해양수산과 재원으로 고창군 곰소만 패류(바지락) 양식장 해양환경 조사의 지원을 받아 수행된 연구임을 밝힙니다.

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