http://wgbis.ces.iisc.ernet.in/energy/stc/biomonitoring_of_wetlands/biomonitoring_aquatic_ecosystem.pdf

Biomonitoring: An appealing tool for assessment of metal pollution in the aquatic ecosystem

European Union Risk Assessment Report

Heavy metal concentrations in marine molluscs from the Moroccan coastal region

Twentieth century overview of heavy metals in the Galician Rias (NW Iberian Peninsula)

Evaluation of mollusks as biomonitors to investigate heavy metal contaminations along the Chinese Bohai Sea.

Distribution and relationships of trace metals in soft tissue, byssus and shells of Mytilus edulis trossulus from the southern Baltic.

Concentrations of Cd, Pb, Zn, Cu, Ag, Cr, Co Ni, Mn, and
Fe in soft tissues and byssi of blue mussel (Mytilus edulis) from
three sites along the east coast of Kyushu Island, Japan, were determined by
AAS method. Large inter-regional differences in metal concentrations in both
soft tissues and byssi (Cu, Cd, and Pb and Cu, Pb, Co, Ni, Mn, and Fe,
respectively) were recorded. Highly significant correlations (p
< 0.01) were observed between tissue and byssal concentrations of Pb,
Cu, Zn, and Mn. The tissue concentrations of Cu, Cd, and Pb were two orders
of magnitude greater in Mytilus edulis from expected to be the
most contaminated locations compared to those from a nonindustrialized area.
Intercomparison of the present study data with those published previously
indicates that the soft tissue and especially byssus are useful in detecting
some areas of some metallic contaminants. The high concentrations of Cd, and
especially Pb and Cu, in Saganoseki mussels and moderately elevated
concentrations of these metals in Akamizu mussels may be attributed to the
anthropogenic emissions from a metallic refinery and an artificial fiber
factory, respectively. It is evident that, compared to the soft tissue, the
increase of Cu levels relative to Zn levels in the byssi of M.
edulis are eight times higher, with a slope b (Cu/Zn) of 7.5 for byssus
and 0.93 for soft tissue. This suggests that byssus, as compared to soft
tissue, is a more sensitive bioindicator for Cu. From the data obtained, the
soft tissue and especially byssi of M. edulis appear to be good
bioindicators for identification of coastal areas exposed to metallic
contaminants.

Distribution and Association of Trace Metals in Soft Tissue and Byssus of Mytilus edulis from the East Coast of Kyushu Island, Japan

The concentrations of Ag, Cd, Co, Cr, Cu, Ni, Pb, Zn, Mn, and Fe in the soft tissue of the cockle Cerastoderma glaucum from six sites along the Mediterranean Lagoon Etang de Thau were determined by AAS; Hg was determined by the cold-vapor technique. Significant spatial variations in metal concentrations within the lagoon were recorded. Elevated levels of tissue Pb, Cr, and Hg in the Etang des Eaux Blanches, an area adjacent to the harbor and highly industrialized region, are likely of anthropogenic origin. Seasonally dependent variations in the tissue concentrations of trace elements at Crique de l'Angle were observed. The highest levels of Cr and Pb in the tissue were identified in March 1992, of Hg, Co, and Fe in period August 1990-January 1991, of Mn in August 1992, and Ag in January 1991. The gills contained the maximum amounts of Co and Ni, the mantle the most Fe and Hg, and the digestive gland (hepatopancreas) had most Cu.

K. Frelek

Papers

Distribution and relationships of trace metals in soft tissue, byssus and shells of Mytilus edulis trossulus from the southern Baltic.

Distribution and Association of Trace Metals in Soft Tissue and Byssus of Mytilus edulis from the East Coast of Kyushu Island, Japan

Distribution of mercury and other trace metals in the cockle Cerastoderma glaucum from the Mediterranean Lagoon Etang de Thau.