Vertical Distribution of Dissolved Silica in the East Sea

SEONGHEE Jeong; TONGSUP Lee

doi:10.7850/jkso.2019.24.2.226

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2019 Vol.24, Issue 2 Preview Page Next Page

Article

Vertical Distribution of Dissolved Silica in the East Sea 동해 용존 규소의 연직분포

31 May 2019. pp. 226-235

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Abstract

동해에서 용존 규소의 분포 특성을 현존하는 가장 광역적인 탐사였던 1999-2000년도 ONR-JES 탐사 자료와 1970년도 일본 자료와 대조해서 살펴보았다. 동해에서 현재 진행 중인 해수교체 양상의 변동과 용존 규소의 분포를 인산염 대 용존 규소의 비로 고찰한 결과로 일차생산에 대한 용존 규소의 제한이 점차 가중될 것이란 가설을 제시하였다. 용존 규소의 제한은 일차생산자의 종조성을 바꾸고 이어서 내려보내기 생산에서 유기입자의 침강이 광물질 껍데기 보다는 유기 점착물 침강에 의한 기여가 커질 것이라 예상된다. 해양에서 규소 순환이 탄소 순환과 깊숙이 연계되어 있는 점에 비추어 미래의 온난화된 대양이 동해처럼 거동하게 될지는 시의적절한 연구 주제가 될 것이라 전망하였다.

Soluble silica profiles of the East Sea were described by comparing the 1970 Japanese data with the 1999-2000 ONR-JES data set, which is the most extensive collection of data currently available. Considering the ventilation mode change happened/ongoing and the features of the soluble silica to phosphate ratio we suggest a hypothesis that a utilization of soluble silica by the primary production might be exacerbated in the future. According to the silica limitation hypothesis composition of primary producers will be altered and followed by a weaker contribution of ballast against aggregates in the export production. Since the silicate cycle is deeply intertwined with the carbon cycle whether the warmed future ocean would behave like the East Sea appears to a potentially promising study theme.

Keywords

Dissolved silica

P:Si ratio

East Sea

Silica hypothesis

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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 : 24
No :2
Pages :226-235
Received Date : 2018-11-24
Revised Date : 2019-01-25
Accepted Date : 2019-02-28
DOI :https://doi.org/10.7850/jkso.2019.24.2.226

The Sea Journal of the Korean Society of OceanographyISSN:1226-2978(Print) 2671-8820(Online)한국해양학회

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