Articles | Volume 22, issue 3
https://doi.org/10.5194/bg-22-675-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-22-675-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
06 Feb 2025
Research article |
| 06 Feb 2025
| 06 Feb 2025
Long-term variations in pH in coastal waters along the Korean Peninsula
Yong-Woo Lee
Marine Environment Monitoring Department, Korea Marine Environment Management Corporation, Busan, Republic of Korea
Mi-Ok Park
Marine Environment Monitoring Department, Korea Marine Environment Management Corporation, Busan, Republic of Korea
Seong-Gil Kim
Marine Environment Monitoring Department, Korea Marine Environment Management Corporation, Busan, Republic of Korea
Tae-Hoon Kim
Department of Oceanography, Faculty of Earth Systems and Environmental Sciences, Chonnam National University, Gwangju, Republic of Korea
Yong Hwa Oh
Department of Convergence Study on the Ocean Science and Technology, Korea Maritime and Ocean University, Busan, Republic of Korea
Sang Heon Lee
Department of Oceanography, Pusan National University, Busan, Republic of Korea
Department of Oceanography, Pusan National University, Busan, Republic of Korea
Institute for Future Earth, Pusan National University, Busan, Republic of Korea
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Short summary
Short summary
In the Arctic's Kongsfjorden, we distinguished the effects of physical water mixing from biological activity on nutrient dynamics. By calculating a 'nutrient anomaly' (ΔNutrient), we quantified how biological uptake drives a seasonal shift from a nutrient-rich spring to a nutrient-limited summer. This approach reveals a 'biogeochemical memory' of the spring bloom and helps predict the fjord's response to climate change, offering crucial insights into Arctic ecosystem productivity.
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Short summary
Long-term pH variation in coastal waters along the Korean Peninsula was assessed for the first time, and it exhibited no significant pH change over an 11-year period. This contrasts with the ongoing pH decline in open oceans and other coastal areas. Analysis of environmental data showed that pH is mainly controlled by dissolved oxygen in bottom waters. This suggests that ocean warming could cause a pH decline in Korean coastal waters, affecting many fish and seaweed aquaculture operations.
Long-term pH variation in coastal waters along the Korean Peninsula was assessed for the first...
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