Herbicide leakage into seawater impacts primary productivity and zooplankton globally
Abstract Predicting the magnitude of herbicide impacts on marine primary productivity remains challenging because the extent of worldwide herbicide pollution in coastal waters and the concentration-response relationships of phytoplankton communities to multiple herbicides are unclear. By analyzing t...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-02-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-46059-4 |
| _version_ | 1797274107591524352 |
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| author | Liqiang Yang Xiaotong He Shaoguo Ru Yongyu Zhang |
| author_facet | Liqiang Yang Xiaotong He Shaoguo Ru Yongyu Zhang |
| author_sort | Liqiang Yang |
| collection | DOAJ |
| description | Abstract Predicting the magnitude of herbicide impacts on marine primary productivity remains challenging because the extent of worldwide herbicide pollution in coastal waters and the concentration-response relationships of phytoplankton communities to multiple herbicides are unclear. By analyzing the spatiotemporal distribution of herbicides at 661 bay and gulf stations worldwide from 1990 to 2022, we determined median, third quartile and maximum concentrations of 12 triazine herbicides of 0.18 nmol L−1, 1.27 nmol L−1 and 29.50 nmol L−1 (95%Confidence Interval: CI 1.06, 1.47), respectively. Under current herbicide stress, phytoplankton primary productivity was inhibited by more than 5% at 25% of the sites and by more than 10% at 10% of the sites (95%CI 3.67, 4.34), due to the inhibition of highly abundant sensitive species, community structure/particle size succession (from Bacillariophyta to Dinophyceae and from nano-phytoplankton to micro-phytoplankton), and resulting growth rate reduction. Concurrently, due to food chain cascade effects, the dominant micro-zooplankton population shifted from larger copepod larvae to smaller unicellular ciliates, which might prolong the transmission process in marine food chain and reduce the primary productivity transmission efficiency. As herbicide application rates on farmlands worldwide are correlated with residues in their adjacent seas, a continued future increase in herbicide input may seriously affect the stability of coastal waters. |
| first_indexed | 2024-03-07T14:53:39Z |
| format | Article |
| id | doaj.art-8f2210f2020d48978c9cdf7eb4865cc4 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-07T14:53:39Z |
| publishDate | 2024-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-8f2210f2020d48978c9cdf7eb4865cc42024-03-05T19:32:22ZengNature PortfolioNature Communications2041-17232024-02-0115111710.1038/s41467-024-46059-4Herbicide leakage into seawater impacts primary productivity and zooplankton globallyLiqiang Yang0Xiaotong He1Shaoguo Ru2Yongyu Zhang3College of Marine Life Sciences, Ocean University of ChinaCollege of Marine Life Sciences, Ocean University of ChinaCollege of Marine Life Sciences, Ocean University of ChinaQingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling RoadAbstract Predicting the magnitude of herbicide impacts on marine primary productivity remains challenging because the extent of worldwide herbicide pollution in coastal waters and the concentration-response relationships of phytoplankton communities to multiple herbicides are unclear. By analyzing the spatiotemporal distribution of herbicides at 661 bay and gulf stations worldwide from 1990 to 2022, we determined median, third quartile and maximum concentrations of 12 triazine herbicides of 0.18 nmol L−1, 1.27 nmol L−1 and 29.50 nmol L−1 (95%Confidence Interval: CI 1.06, 1.47), respectively. Under current herbicide stress, phytoplankton primary productivity was inhibited by more than 5% at 25% of the sites and by more than 10% at 10% of the sites (95%CI 3.67, 4.34), due to the inhibition of highly abundant sensitive species, community structure/particle size succession (from Bacillariophyta to Dinophyceae and from nano-phytoplankton to micro-phytoplankton), and resulting growth rate reduction. Concurrently, due to food chain cascade effects, the dominant micro-zooplankton population shifted from larger copepod larvae to smaller unicellular ciliates, which might prolong the transmission process in marine food chain and reduce the primary productivity transmission efficiency. As herbicide application rates on farmlands worldwide are correlated with residues in their adjacent seas, a continued future increase in herbicide input may seriously affect the stability of coastal waters.https://doi.org/10.1038/s41467-024-46059-4 |
| spellingShingle | Liqiang Yang Xiaotong He Shaoguo Ru Yongyu Zhang Herbicide leakage into seawater impacts primary productivity and zooplankton globally Nature Communications |
| title | Herbicide leakage into seawater impacts primary productivity and zooplankton globally |
| title_full | Herbicide leakage into seawater impacts primary productivity and zooplankton globally |
| title_fullStr | Herbicide leakage into seawater impacts primary productivity and zooplankton globally |
| title_full_unstemmed | Herbicide leakage into seawater impacts primary productivity and zooplankton globally |
| title_short | Herbicide leakage into seawater impacts primary productivity and zooplankton globally |
| title_sort | herbicide leakage into seawater impacts primary productivity and zooplankton globally |
| url | https://doi.org/10.1038/s41467-024-46059-4 |
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