globalchange  > 过去全球变化的重建
DOI: 10.1016/j.marpolbul.2018.04.059
Scopus记录号: 2-s2.0-85046116710
论文题名:
Bioavailable dissolved organic matter and its spatio-temporal variation in a river dominated tropical brackish water Lagoon, India
作者: Kanuri V.V.; Muduli P.R.; Robin R.S.; B. C.K.; A. L.R.; Patra S.; Gupta G.V.M.; Nageswara Rao G.; Raman A.V.; Subramanian B.R.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2018
卷: 131
起始页码: 460
结束页码: 467
语种: 英语
英文关键词: Bioavailability ; Degradation ; Degradation rate coefficients ; Dissolved organic carbon ; Dissolved organic nitrogen ; Mineralization
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science ; Earth and Planetary Sciences: Oceanography ; Environmental Science: Pollution
英文摘要: Bioavailable dissolved organic carbon (BDOC), nitrogen (BDON) and their degradation rate constants were measured for the Chilika Lagoon, India. Long-term laboratory incubation experiments (90 days) were conducted at a constant temperature (25 °C) to quantify the bioavailable dissolved organic matter (DOM) and the possible degradation rate coefficients. The results showed that 41 ± 12% of dissolved organic carbon (DOC) and 47 ± 17% of dissolved organic nitrogen (DON) were BDOC and BDON respectively, with their stoichiometry found to be higher than the Redfield ratio. A first order exponential non-linear fitting routine was used to estimate pool sizes. The degradation rate constant (k) for the BDOC varied from 0.127–0.329 d−1 and BDON from 0.043–0.306 d−1 during the study period. Half-lives of the BDOC and BDON ranged from 2.1–5.4 and 2.2–15.9 days, respectively. Overall, the results showed that a fraction of the labile DON was transported from the lagoon to the adjacent coastal sea. © 2018 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88265
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: ICMAM Project Directorate, Ministry of Earth Sciences, Pallikaranai, Chennai, India; NGRBA, Central Pollution Control Board, Eastern Regional Directorate, Kolkata, India; Wetland Research and Training Centre, Chilika Development Authority, Balugaon, India; NCSCM, Ministry of Environment, Forests and Climate Change, Anna University Campus, Chennai, India; Marine Biology Laboratory, Department of Zoology, Andhra University, Visakhapatnam, India; CMLRE, Ministry of Earth Sciences, Kendriya Bhavan, Cochin, India; Department of Inorganic and Analytical Chemistry, Andhra University, Visakhapatnam, India

Recommended Citation:
Kanuri V.V.,Muduli P.R.,Robin R.S.,et al. Bioavailable dissolved organic matter and its spatio-temporal variation in a river dominated tropical brackish water Lagoon, India[J]. Marine Pollution Bulletin,2018-01-01,131
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