Filtration in Perna viridis and Meretrix casta under heavy metal stress

R. Mathew, N.R. Menon


The rate of filtration in bivalve molluscs is impaired by the presence of heavy metal pollutants. Concentrations of 0.0017 ppm of Ag, 0.068 ppm of Cu and 0.6 ppm of Zn brought about 50 per cent reduction in filtration rate in Perna viridis. Meretrix casta showed EC 50 values of 0.041 and 2.6 ppm for Cu and Pb respectively


Full Text: PDF


  • There are currently no refbacks.

Creative Commons License Mahasagar by National Institite of Oceanography, Goa, India is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Powered by Open Journal Systems. Site is best viewed in 1024X768 resolution. A project by Mithun Raj M. at NIO.