globalchange  > 过去全球变化的重建
DOI: 10.1016/j.marpolbul.2017.10.064
Scopus记录号: 2-s2.0-85033493472
论文题名:
Aragonite saturation state in a tropical coastal embayment dominated by phytoplankton blooms (Guanabara Bay – Brazil)
作者: Cotovicz L.C.; Jr; Knoppers B.A.; Brandini N.; Poirier D.; Costa Santos S.J.; Abril G.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2018
卷: 129, 期:2
起始页码: 729
结束页码: 739
语种: 英语
英文关键词: Carbonate chemistry ; Coastal acidification ; Coastal eutrophication ; Phytoplankton blooms
Scopus关键词: Bioactivity ; Carbon dioxide ; Carbonate minerals ; Discharge (fluid mechanics) ; Effluents ; Phytoplankton ; River pollution ; Coastal embayments ; Coastal eutrophication ; Corrosive water ; Dissolved carbon dioxide ; Dissolved inorganic carbon ; Domestic effluents ; Phytoplankton bloom ; Saturation state ; Eutrophication
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science ; Earth and Planetary Sciences: Oceanography ; Environmental Science: Pollution
英文摘要: The dynamics of the aragonite saturation state (Ωarag) were investigated in the eutrophic coastal waters of Guanabara Bay (RJ-Brazil). Large phytoplankton blooms stimulated by a high nutrient enrichment promoted the production of organic matter with strong uptake of dissolved inorganic carbon (DIC) in surface waters, lowering the concentrations of dissolved carbon dioxide (CO2aq), and increasing the pH, Ωarag and carbonate ion (CO3 2 −), especially during summer. The increase of Ωarag related to biological activity was also evident comparing the negative relationship between the Ωarag and the apparent utilization of oxygen (AOU), with a very close behavior between the slopes of the linear regression and the Redfield ratio. The lowest values of Ωarag were found at low-buffered waters in regions that receive direct discharges from domestic effluents and polluted rivers, with episodic evidences of corrosive waters (Ωarag < 1). This study showed that the eutrophication controlled the variations of Ωarag in Guanabara Bay. © 2017 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88164
Appears in Collections:过去全球变化的重建
全球变化的国际研究计划

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作者单位: Departamento de Geoquímica, Laboratório de Biogeoquímica Marinha, Universidade Federal Fluminense, Outeiro São João Batista s/n, Niterói, RJ, Brazil; Programa de Pós-graduação em Geografia, Laboratório de Ciências do Mar, Instituto de Geografia, Desenvolvimento e Meio Ambiente, Universidade Federal de Alagoas, Maceió, AL, Brazil; Laboratoire Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC), CNRS, Université de Bordeaux, Allée Geoffroy Saint-Hilaire, Pessac Cedex, France; Laboratoire d'Océanographie et du Climat: Expérimentations et Analyses Numériques (LOCEAN), Centre IRD France Nord, 32 avenue Henri Varagnat, Bondy Cedex, France

Recommended Citation:
Cotovicz L.C.,Jr,Knoppers B.A.,et al. Aragonite saturation state in a tropical coastal embayment dominated by phytoplankton blooms (Guanabara Bay – Brazil)[J]. Marine Pollution Bulletin,2018-01-01,129(2)
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