Evaluation of metal enrichment and trophic status on the basis of biogeochemical analysis of shelf sediments of the southeastern Arabian Sea, India
作者： Eldhose Cheriyan , Athira Sreekanth , S.K. Mrudulrag , C.H. Sujatha
DOI: 10.1016/J.CSR.2015.08.007
关键词:
摘要: Abstract The present study investigated the distribution of environmentally relevant metals and organic matter in shelf sediments southeastern Arabian Sea using biogeochemical proxies for assessment environmental quality trophic status. site followed order: Fe>Mg>Pb>Ni>Mn>Co>Cu>Zn>Cd. High biological productivity associated with upwelling leads to significant accumulation Cd higher than crustal abundance region. enrichment factor (EF) demonstrate Pb Co which suggests anthropogenic influence not redox conditions. sediment guidelines (SQG) comparison metal concentration revealed adverse effects, possibly occurring marine benthic species. spatial trend along transects is appreciably controlled by adsorption fine grained sediments. multivariate statistical analyses, such as correlations principal component analysis (PCA) clearly indicated control texture, association clay minerals degree trace (Cd, Pb, Ni Co) contamination from well natural sources. Low levels Zn, preferably display scavenging Fe/Mn oxides. Biochemical descriptors meso-oligotrophic conditions prevailing summer monsoon. ratios among various parameters total carbon/total nitrogen (TOC/TN
harvard.edu
elsevier.com
sci-hub.se 参考文章(65)
Slavka Stankovic, Mihajlo Jovic, Ana R. Stankovic, Lynne Katsikas, Heavy Metals in Seafood Mussels. Risks for Human Health Springer, Dordrecht. pp. 311- 373 ,(2012) , 10.1007/978-94-007-2442-6_9
Stuart Ross Taylor, Scott Mellin McLennan, The continental crust : its composition and evolution : an examination of the geochemical record preserved in sedimentary rocks Published in <b>1985</b> in Oxford by Blackwell scientific. ,(1985)
Gerard Bowe, Extraction and Determination of Chlorophylls John Wiley & Sons, Ltd.. pp. 83- 90 ,(2007) , 10.1002/9780470511107.CH5
A. Lewis Farr, Oliver H. Lowry, Rose J. Randall, Nira J. Rosebrough, Protein Measurement with the Folin Phenol Reagent Journal of Biological Chemistry. ,vol. 193, pp. 265- 275 ,(1951)
KK Balachandran, Thresiamma Joseph, Maheswari Nair, VN Sankaranarayanan, V Kesavadas, P Sheeba, Geochemistry of surficial sediments along the central southwest coast of India: Seasonal changes in regional distribution Journal of Coastal Research. ,vol. 19, pp. 664- 683 ,(2003)
S. Muthu Raj, M. Jayaprakash, Distribution and enrichment of trace metals in marine sediments of Bay of Bengal, off Ennore, south-east coast of India Environmental Earth Sciences. ,vol. 56, pp. 207- 217 ,(2008) , 10.1007/S00254-007-1156-1
V. Ramaswamy, R.R. Nair, S. Manganini, B. Haake, V. Ittekkot, Lithogenic fluxes to the deep Arabian sea measured by sediment traps Deep Sea Research Part A. Oceanographic Research Papers. ,vol. 38, pp. 169- 184 ,(1991) , 10.1016/0198-0149(91)90078-T
Michel. DuBois, K. A. Gilles, J. K. Hamilton, P. A. Rebers, Fred. Smith, Colorimetric Method for Determination of Sugars and Related Substances Analytical Chemistry. ,vol. 28, pp. 350- 356 ,(1956) , 10.1021/AC60111A017
Grażyna Kowalewska, Algal pigments in sediments as a measure of eutrophication in the Baltic environment Quaternary International. ,vol. 130, pp. 141- 151 ,(2005) , 10.1016/J.QUAINT.2004.04.037
D.H. Loring, R.T.T. Rantala, Manual for the geochemical analyses of marine sediments and suspended particulate matter Earth-Science Reviews. ,vol. 32, pp. 235- 283 ,(1992) , 10.1016/0012-8252(92)90001-A