진해만에서 아라고나이트 포화상태의 계절변화

Title
진해만에서 아라고나이트 포화상태의 계절변화
Alternative Title
Biologically mediated seasonalinity of aragonite saturation states in Jinhae Bay, Korea
Author(s)
김동선
KIOST Author(s)
Kim, Dong Seon(김동선)
Alternative Author(s)
김동선
Publication Year
2013-10-14
Abstract
Aragonite saturation states ( arag) were estimated for the surface and bottom waters of Jinhae Bay over four seasons to assess the major factors controlling the  arag. The surface and bottom waters of Jinhae Bay were highly supersaturated with respect to aragonite in spring, autumn, and winter. In summer, however, most of the bottom waters are undersaturated with respect to aragonite during summer, even though the surface waters are supersaturated with respect to aragonite. This phenomenon can be explained by the phytoplankton-carbonate saturation state interaction high primary production increases the  arag in surface waters, while vertical export and subsequent remineralization of organic matter decreases the  arag in subsurface waters. The strong linear correlation between the  arag values and dissolved oxygen (DO) concentrations supports that the biological activity is a major factor controlling the  arag in Jinhae Bay. The ocean acidification induced by the invasion of anthropogenic CO2 also affects considerably the aragonite saturation state in all seasons, particularly in winter when the  arag values have reduced since the pre-industrial era by 32~35% at the surface waters and 33~37% at the bottom waters. In Jinhae Bay, the undersaturation with respect to aragonite in summer may have large impacts on the calcifying benthic organisms mussel calcification may bepersaturated with respect to aragonite in spring, autumn, and winter. In summer, however, most of the bottom waters are undersaturated with respect to aragonite during summer, even though the surface waters are supersaturated with respect to aragonite. This phenomenon can be explained by the phytoplankton-carbonate saturation state interaction high primary production increases the  arag in surface waters, while vertical export and subsequent remineralization of organic matter decreases the  arag in subsurface waters. The strong linear correlation between the  arag values and dissolved oxygen (DO) concentrations supports that the biological activity is a major factor controlling the  arag in Jinhae Bay. The ocean acidification induced by the invasion of anthropogenic CO2 also affects considerably the aragonite saturation state in all seasons, particularly in winter when the  arag values have reduced since the pre-industrial era by 32~35% at the surface waters and 33~37% at the bottom waters. In Jinhae Bay, the undersaturation with respect to aragonite in summer may have large impacts on the calcifying benthic organisms mussel calcification may be
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/26705
Bibliographic Citation
ECSA 2013 Conference, pp.1, 2013
Publisher
Estuarine Coastal Shelf Science
Type
Conference
Language
English
Publisher
Estuarine Coastal Shelf Science
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