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Macroalgal blooms caused by marine nutrient changes resulting from human activities
Wang, Hui1,2; Wang, Guangce1,2; Gu, Wenhui1,2
2020-04-01
Source PublicationJOURNAL OF APPLIED ECOLOGY
ISSN0021-8901
Volume57Issue:4Pages:766-776
Corresponding AuthorWang, Guangce(gcwang@qdio.ac.cn)
AbstractMacroalgal blooms (green tides) are occurring more frequently in many regions of the world, leading to significant impacts on marine ecology and economies. Although many studies and hypotheses have been proposed, the exact mechanism of green tide formation remains unclear. The world's largest green tides recur in the Yellow Sea and this area is representative for studying the origin and mechanism of green tide formation. We conducted a meta-analysis of studies related to green tides and associated hypotheses for their formation. Rapid industrialization/urbanization and environmental protection actions in coastal zones have led to an increase in nitrate (nitrite) and decline in ammonium (ammonia), and this has resulted in increasing levels of dissolved inorganic nitrogen in seawater. We found that presence of appropriate attachment substrates for Ulva including laver culture rafts and certain hydrological conditions are supplementary factors to green tide formation in the Yellow Sea. Changes in marine nutrient levels promote the production of nitric oxide, which is essential for Ulva sporulation. Consequently, numerous spores are created and attach to substrates including laver culture rafts and parent Ulva thalli. These spores then develop into new thalli that are capable of producing further spores. As a result, Ulva thalli rapidly occupy vast areas of the sea and develop into green tides. Synthesis and applications. Our synthesis identifies that escalating marine nitric oxide generation caused by various factors and its essential role in Ulva sporulation are underlying and significant components in the mechanism of green tide formation. We provide solutions such as the improvement of comprehensive management of aquaculture and strict restriction of marine nitrate pollution, to prevent green tides. Furthermore, we propose an innovative wastewater treatment programme combined with Ulva application to fulfil the standard of sustainable development and circular economy.
Keywordgreen tides human activities industrialization macroalgal blooms marine nutrients marine pollution nitric oxide Ulva
DOI10.1111/1365-2664.13587
Indexed BySCI
Language英语
WOS Research AreaBiodiversity & Conservation ; Environmental Sciences & Ecology
WOS SubjectBiodiversity Conservation ; Ecology
WOS IDWOS:000523415100011
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/167012
Collection实验海洋生物学重点实验室
Corresponding AuthorWang, Guangce
Affiliation1.Chinese Acad Sci, Inst Oceanol, Ctr Ocean Mega Sci, Key Lab Expt Marine Biol, Qingdao, Peoples R China
2.Pilot Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Wang, Hui,Wang, Guangce,Gu, Wenhui. Macroalgal blooms caused by marine nutrient changes resulting from human activities[J]. JOURNAL OF APPLIED ECOLOGY,2020,57(4):766-776.
APA Wang, Hui,Wang, Guangce,&Gu, Wenhui.(2020).Macroalgal blooms caused by marine nutrient changes resulting from human activities.JOURNAL OF APPLIED ECOLOGY,57(4),766-776.
MLA Wang, Hui,et al."Macroalgal blooms caused by marine nutrient changes resulting from human activities".JOURNAL OF APPLIED ECOLOGY 57.4(2020):766-776.
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