Ocean and Polar Research

  • 제46권1호
  • /
  • Pages.43-53
  • /
  • 2024
  • /
  • 1598-141X(pISSN)
  • /
  • 2234-7313(eISSN)
한국해양과학기술원 (Korea Institute of Ocean Science & Technology)
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남해 진해만의 환경 및 식물플랑크톤 변동 패턴: 2017-2022년 유해 플랑크톤을 중심으로

Identification of Environmental and Phytoplankton Fluctuation Patterns in Jinhae Bay, South Sea: Focusing on Harmful Plankton from 2017 to 2022

  • 김한솔 (상명대학교 생명과학과) ;
  • 김태희 (상명대학교 생명과학과) ;
  • 박태규 (국립수산과학원) ;
  • 기장서 (상명대학교 생명과학과)
  • Han-Sol Kim (Department of Life Science, Sangmyung University) ;
  • Taehee Kim (Department of Life Science, Sangmyung University) ;
  • Tae-Gyu Park (National Institute of Fisheries Science) ;
  • Jang-Seu Ki (Department of Life Science, Sangmyung University)
  • 투고 : 2023.09.18
  • 심사 : 2024.01.09
  • 발행 : 2024.03.30
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초록

This study investigated recent seasonal changes in the phytoplankton community in the southern coast of Korea, analyzing monthly samples collected at four stations (St.1-4) in Jinhae Bay from 2017 to 2022. Environmental factors except nutrients were similar each station. Water temperature ranged from 6.0 to 29.0℃ and DO ranged from 2.7 to 11.6 mg L-1 with salinity ranging from 25.9 to 33.8 psu. There was no significant differences in environmental factors between stations except for nutrients. Phytoplankton cell concentrations ranged from 5.0×103 cells L-1 to 7×105 cells L-1, with patterns similar to chlorophyll-a at each site. Phytoplankton taxa identified here were 42 genera and 77 species, including 49 diatoms, 27 dinoflagellates, and one Dictyochophyceae species. Diatoms dominated throughout all monitoring stations and seasons; however, dinoflagellates exhibited sporadic patterns during spring seasons. Nine harmful phytoplankton were identified, including one diatome Psuedo-nitzschia and eight dinoflagellate Alexandrium spp., Akashiwo sanguinea, Margalefidinium polykrikoides, Dinophysis spp., Gymnodinium spp., Pheopolykrikos hartmannii, Polykrikos kofoidii and Prorocentrum spp. The appearance pattern of the harmful phytoplankton showed a high correlation with seasonal factors. This study provides fundamental data on the composition of phytoplankton and their relationship with environmental factors in Jinhae Bay. In addition, they may be useful for understanding long-term changes in harmful phytoplankton in the southern coasts of Korea.

키워드

과제정보

본 연구는 2021년 해양수산부 재원으로 해양수산과학기술진흥원(선제부작생물 관리 및 평가기술개발, 20210651)과 2024년도 국립수산과학원 수산과학연구사업 (R2024040)의 지원으로 수행된 연구입니다

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