Arabian Journal of Geosciences

, Volume 7, Issue 3, pp 917–925 | Cite as

Benthic foraminifera and geochemical studies with influence on pollution studies along the coast of Cuddalore, Tamil Nadu-ITS, India

  • M. Suresh GandhiEmail author
  • A. Sonia Nathan
Original Paper


Foraminifers, being sensitive to minute changes, either undergo morphological changes or even disappear from the area completely due to pollution or under unfavourable conditions. The characteristics of foraminifers to incorporate the signature of presence of pollutants are considered to be an effective tool for temporal pollution monitoring studies. Totally, 12 offshore samples (both sediment and water) were taken along a normal profile along the coast of Cuddalore for pollution studies. Apart from foraminiferal studies, geochemical studies of the sediments collected are also undertaken to correlate and substantiate the findings. The near-shore area has a higher concentration of trace elements. If these concentrations exceed or go below permissible limits, it is collateral for the marine community and for those who consume these marine resources. The concentration of trace elements like lead, zinc, manganese, copper, chromium and nickel was illustrated to give an idea of the trace element concentration of the study area. The sedimentological studies reveal the organic matter and calcium carbonate content of the samples, and the bottom water measurements reveal the temperature, salinity and dissolved oxygen of sample locations. These are used to determine whether the conditions prevailing could sustain life. The ratio of living to dead species is also determined and correlated with sedimentological and geochemical parameters. Pollution studies have given way to identify morphological abnormalities in the species mainly in Spiroloculina, Quinqueloculina, Elphidium, etc. but we could not find many effects among the faunal assemblages because of the nature of the sediments found in that area.


Benthic foraminifera Geochemistry Pollution studies East coast of India Off Cuddalore 


  1. Alve E (1991) Benthic foraminifera in sediment cores reflecting heavy metal pollution in Sonfjord, W. Norvay. J Foraminifer Res 21:1–19CrossRefGoogle Scholar
  2. Ayyamperumal T, Jonathan MP, Srinivasalu S, Armstrong-Altrin JS, Ram-Mohan V (2006) Assessment of acid leachable trace metals in sediment cores from River Uppanar, Cuddalore, southeast coast of India. Environ Pollut 143:34–45CrossRefGoogle Scholar
  3. Hutchinson M, MecLennan K (1947) In: Piper CS (ed) Soil and plant analysis. Interscience, New York, p 368Google Scholar
  4. Jackson ML (1958) Soil chemical analysis. Prentice-Hall, Englewood CliffsGoogle Scholar
  5. Krumbein WC, Pettijohn FJ (1938) Manual of sedimentary petrography. Appleton, New York, 549 pGoogle Scholar
  6. Langston WJ (1990) Toxic effects of metals and the incidence of metal pollution in marine ecosystems. In: Furness RW, Rainbow PS (eds) Heavy metals in the marine environment. CRC Press, Boca Raton, pp 101–122Google Scholar
  7. Loeblich AR, Tappan H (1987) Foraminiferal genera and their classification. Van Nostrand, New York, 1182 pGoogle Scholar
  8. Murray (1963) Ecology and applications of benthic foraminifera. Cambridge University Press, Cambridge, p 319Google Scholar
  9. Samir AM, Abdou HF, Zazou SM, El-Menhawey WH (2003) Cluster analysis of recent benthic foraminifera from the northwestern Mediterranean coast of Egypt. Rev Micropaleontol 46:111–130CrossRefGoogle Scholar
  10. Santschi P, Hohener P, Benoit G, Buchholtz-ten M (1990) Chemical processes at the sediment–water interface. Mar Chem 30:269–315CrossRefGoogle Scholar
  11. Scott DB, Tobin R, Williamson M, Medioli FS, Latimer JS, Boothman WA, Asioli A, Henry V (2005) Pollution monitoring in two North American estuaries: historical reconstructions using benthic foraminifera. J Foraminifer Res 35:65–82CrossRefGoogle Scholar
  12. Shapiro L (1975) Rapid analysis of silicate, carbonate and phosphate rocks. Revised edition. Geol Surv Am Bull 1401:1–76Google Scholar
  13. Shapiro L, Brannock WW (1956) Rapid analysis of silicate rocks. US Geol Survey Bull. 1036 C, p 56Google Scholar
  14. Walkley A (1947) A critical examination of a rapid method for determining organic carbon in soils: effect of variations in digestion conditions and of inorganic soil constituents. Soil Sci 63:251–263CrossRefGoogle Scholar
  15. Walton WR (1952) Techniques for recognition of living foraminifera. Contributions from the Cushman Foundation for Foraminiferal Research 3:56–60Google Scholar

Copyright information

© Saudi Society for Geosciences 2012

Authors and Affiliations

  1. 1.Department of GeologyUniversity of MadrasChennaiIndia

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