DOI: 10.1016/j.marpolbul.2017.12.010
Scopus记录号: 2-s2.0-85040763325
论文题名: Amino acids as indicators to elucidate organic matter degradation profile in the Cochin estuarine sediments, Southwest coast of India
作者: Salas P.M. ; Sujatha C.H. ; Ratheesh Kumar C.S. ; Cheriyan E.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2018
卷: 127 起始页码: 273
结束页码: 284
语种: 英语
英文关键词: Amino acids
; Cochin estuary
; Degradation index
; Organic matter
; Surface sediments
Scopus关键词: Amino acids
; Biogeochemistry
; Biological materials
; Carbon
; Effluents
; Estuaries
; Multivariant analysis
; Nitrogen
; Organic compounds
; Sediments
; Surficial sediments
; Cochin estuaries
; Degradation index
; Domestic effluents
; Estuarine sediments
; Multivariate statistical analysis
; Organic matter degradations
; Surface sediments
; Total Organic Carbon
; Organic carbon
; alanine
; amino acid
; arginine
; aspartic acid
; brackish water
; cysteine
; glutamic acid
; glycine
; histidine
; isoleucine
; leucine
; lysine
; methionine
; nitrogen
; organic carbon
; organic matter
; phenylalanine
; proline
; serine
; threonine
; total hydrolyzable amino acid
; tyrosine
; unclassified drug
; valine
; amino acid
; degradation
; environmental indicator
; estuarine sediment
; nitrogen
; organic matter
; sediment pollution
; total organic carbon
; amino acid carbon to total organic carbon
; amino acid nitrogen to total nitrogen
; analytical parameters
; Article
; chemical analysis
; concentration (parameters)
; controlled study
; degradation
; estuarine species
; geographic distribution
; India
; oxidation reduction state
; seasonal variation
; sediment
; water analysis
; Cochin Estuary
; India
; Kerala
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Surface sediments from three zones (fresh water, estuarine, and riverine/industrial zones) of the Cochin estuary, Southwest coast of India, were seasonally analyzed to understand the nature and degradation status of organic matter. Amino acid-based indices such as total hydrolyzable amino acids (THAAs), percentage contributions of amino acid carbon to total organic carbon (THAA-C%) and those of amino acid nitrogen to total nitrogen (THAA-N%), and degradation index (DI) were calculated. Elevated levels of amino acids in the sediments of the estuary were attributed to river runoff, autochthonous production, allochthonous inputs, and industrial and domestic effluent discharges. Higher levels of THAA-C%, THAA-N%, THAA, and positive DI found in most of the stations suggest the fresh deposition of organic matter. Multivariate statistical analyses revealed that the dispersal pattern of amino acids depends on the sediment texture, organic matter, redox state, and microbial processes in the study region. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88549
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: Department of Chemical Oceanography, School of Marine Sciences, Cochin University of Science and Technology, Cochin, Kerala, India
Recommended Citation:
Salas P.M.,Sujatha C.H.,Ratheesh Kumar C.S.,et al. Amino acids as indicators to elucidate organic matter degradation profile in the Cochin estuarine sediments, Southwest coast of India[J]. Marine Pollution Bulletin,2018-01-01,127