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2025 Vol.30, Issue 4 Preview Page

Review

Phytoplankton Ecology in the Amundsen Sea, West Antarctica

서남극 아문젠해 식물플랑크톤 군집 생태 연구

YOUNGJU LEE1*
이 영주1*
1Principal Research Scientist, Division of Ocean and Atmosphere Sciences, Korea Polar Research Institute, Incheon 21990, Korea
1극지연구소 해양대기연구본부 책임연구원
*Corresponding Author
30 November 2025. pp. 325-343
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Abstract

The Amundsen Sea in West Antarctica is one of the most rapidly warming regions on Earth, characterized by the rapid thinning of ice shelves and a highly productive coastal ecosystem. However, scientific investigation of this region has been limited due to its inaccessibility and geographic isolation. Since the discovery of the Amundsen Sea Polynya—one of the most productive coastal polynyas in Antarctica—through satellite observations in the early 2000s, the region has attracted substantial international attention and has become the focus of numerous research expeditions. In particular, the Korean icebreaker R/V Araon has conducted multi-year expeditions since 2010, contributing significantly to the understanding of phytoplankton community structure, biomass, primary production, physiological characteristics, and their seasonal and interannual variability. The biomass and community structure of phytoplankton in the Amundsen Sea responded sensitively to changes in the physicochemical environment, and these variations directly impacted biogeochemical cycles and food web structures. This underscores the importance of further research to elucidate the role of phytoplankton as a regulator of ecosystem changes and the carbon cycle under accelerating ocean warming.

Keywords
Phytoplankton
Ecology
Amundsen Sea
Polynya
West Antarctica

서남극 아문젠해는 지구상에서 가장 급격한 온난화가 진행되는 해역 중 하나로 남극에서도 빙붕이 가장 빠르게 녹고있는 동시에 생산성이 높은 연안으로 잘 알려져 있다. 하지만 오랜 기간 동안 접근의 어려움과 지리적 고립으로 인하여 연구의 사각지대에 놓여 있었다. 2000년대 초반 위성 데이터를 통하여 남극 연안에서 가장 일차생산이 높은 아문젠해 폴리냐의 존재가 밝혀진 후 국제적인 관심과 수 많은 탐사가 이어져 왔다. 특히 대한민국의 쇄빙연구선 아라온호는 2010년부터 다년간에 걸친 탐사를 수행하였다. 이 탐사를 통해 아문젠해의 식물플랑크톤 군집 분포, 생물량, 일차생산, 생리 특성이 밝혀졌으며, 계절적, 경년 변동 특성을 이해하는 데에 중요한 역할을 하였다. 아문젠해 식물플랑크톤의 생물량과 군집구조는 해양의 물리, 화학적 환경 변화에 민감하게 반응하였고, 이러한 일차생산자의 변화는 생지화학 순환과 먹이망 구조에 직접적인 영향을 미쳤다. 이는 가속화되는 온난화 속에서 아문젠해의 생태계 변화와 탄소 순환 조절자로서 식물플랑크톤의 역할을 규명하기 위한 후속 연구의 중요성을 강조한다.

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Information
  • Publisher :The Korean Society of Oceanography
  • Publisher(Ko) :한국해양학회
  • Journal Title :The Sea Journal of the Korean Society of Oceanography
  • Journal Title(Ko) :한국해양학회지 바다
  • Volume : 30
  • No :4
  • Pages :325-343
  • Received Date : 2025-10-15
  • Revised Date : 2025-11-19
  • Accepted Date : 2025-11-20
  • DOI :https://doi.org/10.7850/jkso.2025.30.4.325
Journal Informaiton The Sea Journal of the Korean Society of Oceanography The Sea Journal of the Korean Society of Oceanography
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