증가된 이산화탄소와 수온이 연안 자가영양 식물플랑크톤 군집 구조에 미치는 영향

Title
증가된 이산화탄소와 수온이 연안 자가영양 식물플랑크톤 군집 구조에 미치는 영향
Alternative Title
Effects of the rising CO2 and temperature on coastal autotrophic phytoplankton community structure
Author(s)
현봉길; 장풍국; 이우진; 신경순; 김자명; 이기택; 양은진
KIOST Author(s)
Hyun, Bonggil(현봉길)Jang, Pung Guk(장풍국)Shin, Kyoungsoon(신경순)
Publication Year
2015-05-21
Abstract
The change of coastal phytoplankton community structure to the predicted ocean acidification and sea surface warming was studied using an outdoor mesocosm approach. Each enclosed mesocosm bag was filled with coastal waters from Jangmok bay in South Sea, Korea, and two sets of CO2 and temperature conditions (present: 380ppm, acidification: 980ppm, greenhouse: 980ppm and +3°C warmer than present and acidification condition) were set up. Results showed the potential possibility that future global climate changes could be significantly impacts on coastal ecosystem in temperate regions. More specifically, global climate change can alter the nutrient availability in phytoplankton species, and this result lead to the changes in phytoplankton species succession. We also found that ocean warming and acidification directly impacts on growth of phytoplankton community groups and species. In particular, small phytoplankton (autotrophic nanoflagellate and picophytoplankton) will benefit for their growth under future oceanic condition. Among diatom species, small size species such as Skeletonema costatum can profit for their growth than large diatom species under future oceanic condition. Although our studies will require further confirmation, frequency and intensity of blooms in consisted of small phytoplankton may be increase in future oceanic condition, and might thus be impacts on the marine ecosystem and aquaculture industryin South Sea, Korea, and two sets of CO2 and temperature conditions (present: 380ppm, acidification: 980ppm, greenhouse: 980ppm and +3°C warmer than present and acidification condition) were set up. Results showed the potential possibility that future global climate changes could be significantly impacts on coastal ecosystem in temperate regions. More specifically, global climate change can alter the nutrient availability in phytoplankton species, and this result lead to the changes in phytoplankton species succession. We also found that ocean warming and acidification directly impacts on growth of phytoplankton community groups and species. In particular, small phytoplankton (autotrophic nanoflagellate and picophytoplankton) will benefit for their growth under future oceanic condition. Among diatom species, small size species such as Skeletonema costatum can profit for their growth than large diatom species under future oceanic condition. Although our studies will require further confirmation, frequency and intensity of blooms in consisted of small phytoplankton may be increase in future oceanic condition, and might thus be impacts on the marine ecosystem and aquaculture industry
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/25514
Bibliographic Citation
한국해양학회, pp.255 - 267, 2015
Publisher
한국해양학회
Type
Conference
Language
English
Publisher
한국해양학회
Related Researcher
Research Interests

Plankton ecology and physiology,Risk assessment,Ship ballast water,플랑크톤 생리, 생태,위해성평가,선박평형수

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