Coastal Oxygen and Hypoxia in Asian waters

Coastal Oxygen and Hypoxia in Asian waters

Coastal Oxygen and Hypoxia in Asian waters 800 266 Ocean Decade

Lead institution:

Second Institute of Oceanography, Ministry of Natural Resources – China

This project initiative aims to advance understanding about deoxygenation and seasonal hypoxia in Asian coastal waters under the dual-control of intense eutrophication and global warming.

Asia hosts rapid population and economic growth. Large rivers discharge massive amounts of land-use pollutants into estuarine and coastal areas, causing over-enrichment (eutrophication) and dissolved oxygen deficiency in coastal waters. The formation of coastal hypoxia greatly impacts local ecosystem functioning.

Global warming affects dissolved oxygen content by altering oxygen solubility, consumption (growth rate, metabolic rate, etc.), and replenishment (large-scale lateral exchange rate, typhoon frequency/intensity, etc.). Global warming also impacts river streamflow and nutrient loading. Identifying the relative contributions of eutrophication and global warming and establishing a science-based mitigation strategy are crucial for managing expanding coastal hypoxia.

This project is hosted by the Ocean Decade Programme Global Ocean Oxygen Decade (GOOD).

Start Date: 03/01/2024
End Date: 28/02/2029

Lead Contact: Wenxia Zhang (

challenges: 1- Understand and beat marine pollution, 2- Protect and restore ecosystems and biodiversity
ocean_basins: Indian Ocean, North Pacific Ocean
type_of_action: Project


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