Petrosia testudinaria as a biomarker for metal contamination at Gulf of Mannar, southeast coast of India

Chemosphere
J Venkateswara RaoT Gnaneshwar Rao

Abstract

Coastal marine ecosystems in many parts of the world are under unrelenting stress caused by urban development, pollutants and other ecological impacts such as building of infrastructure, land reclamation for port and industrial development, habitat modification, tourism and recreational activities. The present work is a first extensive field study using the marine sponge, Petrosia testudinaria as a biomarker to detect heavy metal pollution between near and off shore environment of 'Gulf of Mannar', India. Sponges were collected from near shore (0.5-1 km) and offshore (5-7 km), locations and their metal concentrations were determined by inductively coupled plasma-mass spectrometry (ICPMS). Our results show that the near shore sponge accumulated greater concentrations of heavy metals (Al, Fe, Mn, As, Ni, Co, Cu, Se) ranging from 0.13 to 64 times higher concentration than the sponges located away from the shore. The results indicate that the accumulated metals alter the macromolecule composition (sugars, proteins and lipids) in near shore sponges. Frequent monitoring is necessary to assess the eco-health of the marine environment by choosing bioindicator species like sponges, which provide accurate, reliable measurement of environ...Continue Reading

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Citations

Mar 12, 2013·Environmental Monitoring and Assessment·Srikanth KoigooraVenkateswara Rao Janapala
Jan 21, 2014·Environmental Science and Pollution Research International·Daniela BatistaNorbert F Miekeley
Apr 15, 2008·Marine Pollution Bulletin·David A RobertsAlistair G B Poore
Feb 7, 2014·Microscopy Research and Technique·Maushmi S Kumar, Bhaumik Shah
Jul 3, 2007·Microbiological Research·Joseph SelvinN Sapna Bai
Jun 12, 2020·Journal of Hazardous Materials·Anna Maria OraniCarlos Alonso-Hernandez
Aug 6, 2021·Environmental Science and Pollution Research International·Lucia De MarchiFabio Bulleri

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