Characterization of lacustrine harmful algal blooms using multiple biomarkers: Historical processes, driving synergy, and ecological shifts
11 pages, 5 figures, supplementary materials https://doi.org/10.1016/j.watres.2023.119916
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| Format: | artículo biblioteca |
| Language: | English |
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Elsevier
2023-05
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| Subjects: | Harmful cyanobacterial bloom, Cyanotoxin, Critical transition, Variability, Climate warming, Lake paleoecology, Conserve and sustainably use the oceans, seas and marine resources for sustainable development, |
| Online Access: | http://hdl.handle.net/10261/330768 |
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dig-icm-es-10261-3307682023-07-10T10:18:41Z Characterization of lacustrine harmful algal blooms using multiple biomarkers: Historical processes, driving synergy, and ecological shifts Lin, Qi Zhang, Ke McGowan, Suzanne Huang, Shixin Xue, Qingju Capo, Eric Zhang, Can Zhao, Cheng Shen, Ji National Natural Science Foundation of China National Key Research and Development Program (China) Natural Science Foundation of Jiangsu Province Chinese Academy of Sciences Agencia Estatal de Investigación (España) Harmful cyanobacterial bloom Cyanotoxin Critical transition Variability Climate warming Lake paleoecology Conserve and sustainably use the oceans, seas and marine resources for sustainable development 11 pages, 5 figures, supplementary materials https://doi.org/10.1016/j.watres.2023.119916 Harmful algal blooms (HABs) producing toxic metabolites are increasingly threatening environmental and human health worldwide. Unfortunately, long-term process and mechanism triggering HABs remain largely unclear due to the scarcity of temporal monitoring. Retrospective analysis of sedimentary biomarkers using up-to-date chromatography and mass spectrometry techniques provide a potential means to reconstruct the past occurrence of HABs. By combining aliphatic hydrocarbons, photosynthetic pigments, and cyanotoxins, we quantified herein century-long changes in abundance, composition, and variability of phototrophs, particularly toxigenic algal blooms, in China's third largest freshwater Lake Taihu. Our multi-proxy limnological reconstruction revealed an abrupt ecological shift in the 1980s characterized by elevated primary production, Microcystis-dominated cyanobacterial blooms, and exponential microcystin production, in response to nutrient enrichment, climate change, and trophic cascades. The empirical results from ordination analysis and generalized additive models support climate warming and eutrophication synergy through nutrient recycling and their feedback through buoyant cyanobacterial proliferation, which sustain bloom-forming potential and further promote the occurrence of increasingly-toxic cyanotoxins (e.g., microcystin-LR) in Lake Taihu. Moreover, temporal variability of the lake ecosystem quantified using variance and rate of change metrics rose continuously after state change, indicating increased ecological vulnerability and declined resilience following blooms and warming. With the persistent legacy effects of lake eutrophication, nutrient reduction efforts mitigating toxic HABs probably be overwhelmed by climate change effects, emphasizing the need for more aggressive and integrated environmental strategies This study was financially supported by the National Natural Science Foundation of China (42007284, 42111530229), the National Key Research and Development Program of China (2022YFF0801101), the Natural Science Foundation of Jiangsu Province of China (BK20201099), and “Innovative and Entrepreneurial Talent Program” of Jiangsu Province (JSSCBS20211389). The author Qi Lin acknowledges the support of the Youth Scientists Group in Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences (No. 2021NIGLASCJH03) With the institutional support of the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S) Peer reviewed 2023-07-10T10:18:01Z 2023-07-10T10:18:01Z 2023-05 artículo Water Research 235: 119916 (2023) 0043-1354 CEX2019-000928-S http://hdl.handle.net/10261/330768 10.1016/j.watres.2023.119916 en https://doi.org/10.1016/j.watres.2023.119916 Sí none Elsevier |
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Harmful cyanobacterial bloom Cyanotoxin Critical transition Variability Climate warming Lake paleoecology Conserve and sustainably use the oceans, seas and marine resources for sustainable development Harmful cyanobacterial bloom Cyanotoxin Critical transition Variability Climate warming Lake paleoecology Conserve and sustainably use the oceans, seas and marine resources for sustainable development |
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Harmful cyanobacterial bloom Cyanotoxin Critical transition Variability Climate warming Lake paleoecology Conserve and sustainably use the oceans, seas and marine resources for sustainable development Harmful cyanobacterial bloom Cyanotoxin Critical transition Variability Climate warming Lake paleoecology Conserve and sustainably use the oceans, seas and marine resources for sustainable development Lin, Qi Zhang, Ke McGowan, Suzanne Huang, Shixin Xue, Qingju Capo, Eric Zhang, Can Zhao, Cheng Shen, Ji Characterization of lacustrine harmful algal blooms using multiple biomarkers: Historical processes, driving synergy, and ecological shifts |
| description |
11 pages, 5 figures, supplementary materials https://doi.org/10.1016/j.watres.2023.119916 |
| author2 |
National Natural Science Foundation of China |
| author_facet |
National Natural Science Foundation of China Lin, Qi Zhang, Ke McGowan, Suzanne Huang, Shixin Xue, Qingju Capo, Eric Zhang, Can Zhao, Cheng Shen, Ji |
| format |
artículo |
| topic_facet |
Harmful cyanobacterial bloom Cyanotoxin Critical transition Variability Climate warming Lake paleoecology Conserve and sustainably use the oceans, seas and marine resources for sustainable development |
| author |
Lin, Qi Zhang, Ke McGowan, Suzanne Huang, Shixin Xue, Qingju Capo, Eric Zhang, Can Zhao, Cheng Shen, Ji |
| author_sort |
Lin, Qi |
| title |
Characterization of lacustrine harmful algal blooms using multiple biomarkers: Historical processes, driving synergy, and ecological shifts |
| title_short |
Characterization of lacustrine harmful algal blooms using multiple biomarkers: Historical processes, driving synergy, and ecological shifts |
| title_full |
Characterization of lacustrine harmful algal blooms using multiple biomarkers: Historical processes, driving synergy, and ecological shifts |
| title_fullStr |
Characterization of lacustrine harmful algal blooms using multiple biomarkers: Historical processes, driving synergy, and ecological shifts |
| title_full_unstemmed |
Characterization of lacustrine harmful algal blooms using multiple biomarkers: Historical processes, driving synergy, and ecological shifts |
| title_sort |
characterization of lacustrine harmful algal blooms using multiple biomarkers: historical processes, driving synergy, and ecological shifts |
| publisher |
Elsevier |
| publishDate |
2023-05 |
| url |
http://hdl.handle.net/10261/330768 |
| work_keys_str_mv |
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