한반도 부유성 원생생물 종자생태계의 위기

Title
한반도 부유성 원생생물 종자생태계의 위기
Author(s)
김영옥
KIOST Author(s)
Kim, Young Ok(김영옥)
Publication Year
2013-07-12
Abstract
Phytoplanktons in coastal regions are generally known to have a tolerance to ocean acidification. However, we found that their survival is being threatened by acidic environments in the hypoxic zone, and we present the evidence in this study. In natural sediments of the hypoxic zone, morphological changes of the calcareous seed population caused by acidic conditions in sediments have been observed and have been demonstrated by hypoxia-induced acidification experiments. The calcareous spines of cysts can endure quite low pH levels (pH 7.39), suggesting that the seed populations in the hypoxic zone are already experiencing extremely acidic environments. After being exposed to intense acidic environments, cysts without calcareous spines were able to germinate however, they can be easily linked to mortality, due to aerobic and anaerobic decay. Consequently, we suggest that changes in the planktonic community structure and a reduction in biodiversity in the hypoxic zone will result.y. In natural sediments of the hypoxic zone, morphological changes of the calcareous seed population caused by acidic conditions in sediments have been observed and have been demonstrated by hypoxia-induced acidification experiments. The calcareous spines of cysts can endure quite low pH levels (pH 7.39), suggesting that the seed populations in the hypoxic zone are already experiencing extremely acidic environments. After being exposed to intense acidic environments, cysts without calcareous spines were able to germinate however, they can be easily linked to mortality, due to aerobic and anaerobic decay. Consequently, we suggest that changes in the planktonic community structure and a reduction in biodiversity in the hypoxic zone will result.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/20650
Bibliographic Citation
원생생물 기반 융합연구 네트워킹 세미나, pp.1 - 2, 2013
Publisher
한국원생생물학회
Type
Conference
Language
Korean
Publisher
한국원생생물학회
Related Researcher
Research Interests

Marine ecology,Plankton,Protists,해양생태,부유생물,원생생물

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