Global floating algae blooms are expanding.
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| Main Authors: | , , , , , , , |
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| Format: | Artículo científico |
| Language: | en |
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Nature communications
2025
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| _version_ | 1868266114452029441 |
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| author | Qi, Lin Wang, Menghua Barnes, Brian B Capone, Douglas G Goes, Joaquim I Carpenter, Edward J Xie, Yuyuan Hu, Chuanmin |
| author_facet | Qi, Lin Wang, Menghua Barnes, Brian B Capone, Douglas G Goes, Joaquim I Carpenter, Edward J Xie, Yuyuan Hu, Chuanmin Qi, Lin Wang, Menghua Barnes, Brian B Capone, Douglas G Goes, Joaquim I Carpenter, Edward J Xie, Yuyuan Hu, Chuanmin |
| collection | PubMed - marine biology |
| contents | Global floating algae blooms are expanding. Qi, Lin Wang, Menghua Barnes, Brian B Capone, Douglas G Goes, Joaquim I Carpenter, Edward J Xie, Yuyuan Hu, Chuanmin Eutrophication Microalgae Seaweed Oceans and Seas Phytoplankton Ecosystem Seawater Satellite Imagery In the past two decades, both microscopic algae (i.e., phytoplankton) and larger algae (i.e., macroalgae) have increased in certain coastal and open ocean waters, yet a comprehensive picture at the global scale is lacking. Here, we address this challenge by analyzing 1.2 million satellite images with computer artificial intelligence to quantify macroalgal mats and microalgal scums in global oceans between 2003 and 2022. With a total cumulative realized niche area of 43.8 million km, macroalgae blooms in the tropical Atlantic and western Pacific both expanded at unprecedented rates since the 2010s (13.4% per year since 2003). Although slower, the annual expansion rate of microalgae scums is also statistically significant (1.0% per year since 2003). Such trends are likely a result of ocean warming and eutrophication, with a possible regime shift favoring macroalgae and specialized species of microalgae. These findings have broad implications on ocean ecology, carbon sequestration, environments, and economy. |
| format | Artículo científico |
| id | pubmed_41354835 |
| institution | PubMed |
| language | en |
| publishDate | 2025 |
| publisher | Nature communications |
| record_format | pubmed |
| spellingShingle | Global floating algae blooms are expanding. Qi, Lin Wang, Menghua Barnes, Brian B Capone, Douglas G Goes, Joaquim I Carpenter, Edward J Xie, Yuyuan Hu, Chuanmin Eutrophication Microalgae Seaweed Oceans and Seas Phytoplankton Ecosystem Seawater Satellite Imagery Global floating algae blooms are expanding. Qi, Lin Wang, Menghua Barnes, Brian B Capone, Douglas G Goes, Joaquim I Carpenter, Edward J Xie, Yuyuan Hu, Chuanmin Eutrophication Microalgae Seaweed Oceans and Seas Phytoplankton Ecosystem Seawater Satellite Imagery In the past two decades, both microscopic algae (i.e., phytoplankton) and larger algae (i.e., macroalgae) have increased in certain coastal and open ocean waters, yet a comprehensive picture at the global scale is lacking. Here, we address this challenge by analyzing 1.2 million satellite images with computer artificial intelligence to quantify macroalgal mats and microalgal scums in global oceans between 2003 and 2022. With a total cumulative realized niche area of 43.8 million km, macroalgae blooms in the tropical Atlantic and western Pacific both expanded at unprecedented rates since the 2010s (13.4% per year since 2003). Although slower, the annual expansion rate of microalgae scums is also statistically significant (1.0% per year since 2003). Such trends are likely a result of ocean warming and eutrophication, with a possible regime shift favoring macroalgae and specialized species of microalgae. These findings have broad implications on ocean ecology, carbon sequestration, environments, and economy. |
| title | Global floating algae blooms are expanding. |
| topic | Eutrophication Microalgae Seaweed Oceans and Seas Phytoplankton Ecosystem Seawater Satellite Imagery |
| url | https://pubmed.ncbi.nlm.nih.gov/41354835/ |