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Shift in algal blooms from micro- to macroalgae around China with increasing eutrophication and climate change.
Feng, Yuan; Xiong, Yonglong; Hall-Spencer, Jason M; Liu, Kailin; Beardall, John; Gao, Kunshan; Ge, Jingke; Xu, Juntian; Gao, Guang.
Afiliación
  • Feng Y; State Key Laboratory of Marine Environmental Science & College of Ocean and Earth Sciences, Xiamen University, Xiamen, China.
  • Xiong Y; State Key Laboratory of Marine Environmental Science & College of Ocean and Earth Sciences, Xiamen University, Xiamen, China.
  • Hall-Spencer JM; Marine Institute, University of Plymouth, Plymouth, UK.
  • Liu K; Shimoda Marine Research Center, Tsukuba University, Tsukuba, Japan.
  • Beardall J; College of the Environment & Ecology, Xiamen University, Xiamen, China.
  • Gao K; State Key Laboratory of Marine Environmental Science & College of Ocean and Earth Sciences, Xiamen University, Xiamen, China.
  • Ge J; School of Biological Sciences, Monash University, Clayton, Victoria, Australia.
  • Xu J; Faculty of Applied Sciences, UCSI University, Kuala Lumpur, Malaysia.
  • Gao G; State Key Laboratory of Marine Environmental Science & College of Ocean and Earth Sciences, Xiamen University, Xiamen, China.
Glob Chang Biol ; 30(1): e17018, 2024 Jan.
Article en En | MEDLINE | ID: mdl-37937464
Blooms of microalgal red tides and macroalgae (e.g., green and golden tides caused by Ulva and Sargassum) have caused widespread problems around China in recent years, but there is uncertainty around what triggers these blooms and how they interact. Here, we use 30 years of monitoring data to help answer these questions, focusing on the four main species of microalgae Prorocentrum donghaiense, Karenia mikimotoi, Noctiluca scintillans, and Skeletonema costatum) associated with red tides in the region. The frequency of red tides increased from 1991 to 2003 and then decreased until 2020, with S. costatum red tides exhibiting the highest rate of decrease. Green tides started to occur around China in 1999 and the frequency of green tides has since been on the increase. Golden tides were first reported to occur around China in 2012. The frequency of macroalgal blooms has a negative linear relationship with the frequency and coverage of red tides around China, and a positive correlation with total nitrogen and phosphorus loads as well as with atmospheric CO2 and sea surface temperature (SST). Increased outbreaks of macroalgal blooms are very likely due to worsening levels of eutrophication, combined with rising CO2 and SST, which contribute to the reduced frequency of red tides. The increasing grazing rate of microzooplankton also results in the decline in areas affected by red tides. This study shows a clear shift of algal blooms from microalgae to macroalgae around China over the past 30 years driven by the combination of eutrophication, climate change, and grazing stress, indicating a fundamental change in coastal systems in the region.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Algas Marinas / Dinoflagelados / Microalgas País/Región como asunto: Asia Idioma: En Revista: Glob Chang Biol Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Algas Marinas / Dinoflagelados / Microalgas País/Región como asunto: Asia Idioma: En Revista: Glob Chang Biol Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido