Hypoxia in autumn of the East China Sea

Chung Chi Chen; Gwo Ching Gong; Wen Chen Chou; Fuh Kwo Shiah

doi:10.1016/j.marpolbul.2019.110875

Hypoxia in autumn of the East China Sea

Chung Chi Chen^*
, Gwo Ching Gong
, Wen Chen Chou
, Fuh Kwo Shiah

^*Corresponding author for this work

Department of Life Science

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

Hypoxia (O₂ ≤ 2 mg L⁻¹) can severely threaten the survival of marine life and alter the biogeochemical cycles of coastal ecosystems. Its impacts are dependent on its duration. In the present study, hypoxia was observed in autumn at the end of October 2011. It may be one of the latest recorded annual hypoxic events in the East China Sea (ECS). In the hypoxic regions, a large amount of nutrients and dissolved inorganic carbon were observed to regenerate. Also, acidification (low pH) was observed. On the other hand, hypoxic dissipation may be due to the destratification caused by the upwelling of the hypoxic regions in the ECS. These results suggest that hypoxia may occur for longer periods of time than expected and, accordingly, the effects of hypoxia on the ECS ecosystems should be reconsidered and further evaluated.

Original language	English
Article number	110875
Journal	Marine Pollution Bulletin
Volume	152
DOIs	https://doi.org/10.1016/j.marpolbul.2019.110875
Publication status	Published - 2020 Mar

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 14 Life Below Water

Keywords

Acidification
Changjiang River estuary
East China Sea
Fugacity of CO
Hypoxia
Nutrient regeneration

ASJC Scopus subject areas

Oceanography
Aquatic Science
Pollution

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10.1016/j.marpolbul.2019.110875

Cite this

@article{deccea7513e6461eacc1b23adb866575,

title = "Hypoxia in autumn of the East China Sea",

abstract = "Hypoxia (O2 ≤ 2 mg L−1) can severely threaten the survival of marine life and alter the biogeochemical cycles of coastal ecosystems. Its impacts are dependent on its duration. In the present study, hypoxia was observed in autumn at the end of October 2011. It may be one of the latest recorded annual hypoxic events in the East China Sea (ECS). In the hypoxic regions, a large amount of nutrients and dissolved inorganic carbon were observed to regenerate. Also, acidification (low pH) was observed. On the other hand, hypoxic dissipation may be due to the destratification caused by the upwelling of the hypoxic regions in the ECS. These results suggest that hypoxia may occur for longer periods of time than expected and, accordingly, the effects of hypoxia on the ECS ecosystems should be reconsidered and further evaluated.",

keywords = "Acidification, Changjiang River estuary, East China Sea, Fugacity of CO, Hypoxia, Nutrient regeneration",

author = "Chen, \{Chung Chi\} and Gong, \{Gwo Ching\} and Chou, \{Wen Chen\} and Shiah, \{Fuh Kwo\}",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

year = "2020",

month = mar,

doi = "10.1016/j.marpolbul.2019.110875",

language = "English",

volume = "152",

journal = "Marine Pollution Bulletin",

issn = "0025-326X",

publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Hypoxia in autumn of the East China Sea

AU - Chen, Chung Chi

AU - Gong, Gwo Ching

AU - Chou, Wen Chen

AU - Shiah, Fuh Kwo

PY - 2020/3

Y1 - 2020/3

N2 - Hypoxia (O2 ≤ 2 mg L−1) can severely threaten the survival of marine life and alter the biogeochemical cycles of coastal ecosystems. Its impacts are dependent on its duration. In the present study, hypoxia was observed in autumn at the end of October 2011. It may be one of the latest recorded annual hypoxic events in the East China Sea (ECS). In the hypoxic regions, a large amount of nutrients and dissolved inorganic carbon were observed to regenerate. Also, acidification (low pH) was observed. On the other hand, hypoxic dissipation may be due to the destratification caused by the upwelling of the hypoxic regions in the ECS. These results suggest that hypoxia may occur for longer periods of time than expected and, accordingly, the effects of hypoxia on the ECS ecosystems should be reconsidered and further evaluated.

AB - Hypoxia (O2 ≤ 2 mg L−1) can severely threaten the survival of marine life and alter the biogeochemical cycles of coastal ecosystems. Its impacts are dependent on its duration. In the present study, hypoxia was observed in autumn at the end of October 2011. It may be one of the latest recorded annual hypoxic events in the East China Sea (ECS). In the hypoxic regions, a large amount of nutrients and dissolved inorganic carbon were observed to regenerate. Also, acidification (low pH) was observed. On the other hand, hypoxic dissipation may be due to the destratification caused by the upwelling of the hypoxic regions in the ECS. These results suggest that hypoxia may occur for longer periods of time than expected and, accordingly, the effects of hypoxia on the ECS ecosystems should be reconsidered and further evaluated.

KW - Acidification

KW - Changjiang River estuary

KW - East China Sea

KW - Fugacity of CO

KW - Hypoxia

KW - Nutrient regeneration

UR - https://www.scopus.com/pages/publications/85077736011

UR - https://www.scopus.com/pages/publications/85077736011#tab=citedBy

U2 - 10.1016/j.marpolbul.2019.110875

DO - 10.1016/j.marpolbul.2019.110875

M3 - Article

C2 - 31957672

AN - SCOPUS:85077736011

SN - 0025-326X

VL - 152

JO - Marine Pollution Bulletin

JF - Marine Pollution Bulletin

M1 - 110875

ER -

Hypoxia in autumn of the East China Sea

Abstract

UN SDGs

Keywords

ASJC Scopus subject areas

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