A review of the effects of heavy metals on freshwater mussels

Ecotoxicology ◽  
1995 ◽  
Vol 4 (6) ◽  
pp. 341-362 ◽  
Author(s):  
Teresa J. Naimo
Keyword(s):  
Heavy Metals ◽  
Freshwater Mussels

Heavy metals accumulation in freshwater mussels (Lamellidens marginalis) as a biological monitor inhabiting in Dhanmondi Lake, Dhaka, Bangladesh.

2016 ◽  
Vol 5 (10) ◽  
pp. 4933
Author(s):  
Sabia Sultana ◽  
A. K. M. Nur Alam Siddiki ◽  
Md. Rokonujjaman ◽  
M. Niamul Naser ◽  
Abdus Salam ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Soft Tissues ◽  
Freshwater Mussels ◽  
Heavy Metal Concentration ◽  
Heavy Metal Concentrations ◽  
Heavy Metals Accumulation ◽  
Manganese Zinc ◽  
Metals Accumulation ◽  
Test Level

The heavy metal concentration (e.g., Mn, Zn, Pb and Ni) were determined in soft tissues and shells of freshwater mussels (Lamellidens marginalis) at the various sites of Dhanmondi lake, Dhaka, Bangladesh between the period April, 2010 and March 2011. The heavy metal concentrations in shells and soft tissues of freshwater mussels were tended to vary significantly among sampling points and seasons in Dhanmondi Lake. Distribution of heavy metals in shell and soft tissue of Lamellidens marginalis followed the order Mn>Zn>Pb>Ni, respectively. According to the t-test, level of manganese, zinc and lead under investigation between shell and tissue showed statistically significant differences [Mn: t=-11.387; df=16; P=0.000; Zn: t=-2.590; df=16; P=0.020 and Pb: t=-2.8679; df=16; P=0.011].

scholarly journals KAJIAN KANDUNGAN LOGAM BERAT MERKURI (Hg) PADA KERANG AIR TAWAR (Anodonta sp) DI KAWASAN HILIR SUB DAS KRUENG MEUREUBO, ACEH BARAT

2016 ◽  
Vol 3 (1) ◽  
Author(s):  
Munandar Munandar ◽  
Alwis Alamsyah
Keyword(s):  
Heavy Metals ◽  
Gold Mining ◽  
Total Mercury ◽  
Freshwater Mussels ◽  
Deposition Process ◽  
Mercury Content ◽  
Upstream Region ◽  
Marine Animals ◽  
Potential Factor ◽  
Banda Aceh

One source of mercury pollution came from gold mining was done by the community from gold processing through amalgamation. Heavy metals that present in the waters will undergo deposition process and accumulate in marine animals then end up in humans. Meureubo upstream region is one of the locations that still carried out the gold mining activities used mercury. That condition is one potential factor that can contaminate the waters. This study was conducted in October-November 2014. Sampling was taked in Meureubo River and the mercury content analysis was carried out in the Laboratory of Research and Standardization Industry (Baristan) Banda Aceh. The laboratory analysis results showed that the total mercury (Hg) of heavy metals in the freshwater mussels samples (Anodonta sp) on RP station is 0,074 ppm, PP illustrates 0,042 ppm and PA confirms 0.304 ppm. Furthermore, the total mercury (Hg) of heavy metals in the sample freshwater on RP station around 0.0005085 mg/l, PP 0.0001792 mg/l and PA 0.0006711 mg/l. The results showed that the samples of freshwater mussels (Anodonta sp) and the water samples which taken at three stations (Rantau Panjang, Pasi Pinang, Pasi Aceh) were positive for mercury (Hg).

Bioaccumulation of heavy metals and analysis of mineral element alongside proximate composition in foot, gills and mantle of freshwater mussels (Anodonta anatina)

2016 ◽  
Vol 27 (4) ◽  
pp. 687-696 ◽  
Author(s):  
Muhammad Sohail ◽  
Muhammad Naeem Khan ◽  
Abdul Shakoor Chaudhry ◽  
Naureen Aziz Qureshi
Keyword(s):  
Heavy Metals ◽  
Proximate Composition ◽  
Freshwater Mussels ◽  
Mineral Element

scholarly journals Monitoring DNA Damage in Gills of Freshwater Mussels (Anodonta anatina) Exposed to Heavy Metals

2017 ◽  
Vol 49 (1) ◽  
pp. 305-311 ◽  
Author(s):  
Muhammad Sohail ◽  
Muhammad Naeem Khan ◽  
Naureen Aziz Qureshi ◽  
Abdul Shakoor Chaudhry
Keyword(s):  
Heavy Metals ◽  
Dna Damage ◽  
Freshwater Mussels

scholarly journals Changes in Metallothionein Levels in Freshwater Mussels Exposed to Urban Wastewaters: Effects from Exposure to Heavy Metals?

2007 ◽  
Vol 2 ◽  
pp. 117727190700200 ◽  
Author(s):  
F. Gagné ◽  
C. Gagnon ◽  
P. Turcotte ◽  
C. Blaise
Keyword(s):  
Heavy Metals ◽  
Dehydrogenase Activity ◽  
Freshwater Mussels ◽  
Large City ◽  
Analysis Of Covariance ◽  
Metal Exposure ◽  
Municipal Effluent ◽  
Inflammatory Processes ◽  
Zinc Levels ◽  
Glucose 6 Phosphate Dehydrogenase

Municipal effluents are complex mixtures of compounds such as heavy metals, aromatic and aliphatic hydrocarbons, and micro-organisms and are released in aquatic ecosystems. The purpose of this study was to verify whether changes in metallothioneins (MT) were associated with the accumulation of labile metals in tissue of freshwater mussels exposed to the dispersion plume of a major municipal effluent. Mussels were placed in experimental cages deployed at sites 1.5 km upstream, 8 km downstream and 12 km downstream of the outfall of a major, primary-treated municipal effluent in the St. Lawrence River (Québec, Canada). Mussels were analysed for MT and labile zinc levels in their gonads, gills and digestive glands. Lipogenic enzyme (isocitrate and glucose-6-phosphate dehydrogenase) and arachidonic acid cyclooxygenase (COX) activities were also measured in gonad and gill tissues. Although MT was induced in all the tissues examined, the results showed that labile zinc levels were significantly reduced in gill and gonad tissues, with an increase observed only at the 12 km downstream site in the digestive gland. COX activity was readily induced in gills and gonads. Glucose-6-phosphate dehydrogenase activity was reduced at both downstream sites, but isocitrate dehydrogenase activity was significantly induced at the farthest (12 km) site. Analysis of covariance revealed that MT levels in gills were more influenced by COX activity than with distance in the dispersion plume and was negatively correlated with labile zinc levels. In conclusion, MT induction was inversely related to the levels of labile zinc but positively so with the inflammation biomarker COX. Hence, the induction of MT in mussels exposed to the municipal effluent of a large city appears to be associated with either inflammatory processes or as compensation for the loss of labile essential metals. We propose that the simple and complimentary parameters of labile zinc and COX evaluations be used to link MT induction with divalent heavy metal exposure in environmental studies dealing with various type of contaminants in such complex contaminant mixture effluents.

Sampling and analysis of the air-water interface with SEM and EDS of microlayers

1989 ◽  
Vol 47 ◽  
pp. 1004-1005
Author(s):  
Randall W. Smith ◽  
John Dash
Keyword(s):  
Heavy Metals ◽  
Surface Microlayer ◽  
Surface Films ◽  
Water Interface ◽  
Physical Processes ◽  
Infrared Spectroscopic Analysis ◽  
Eds Analysis ◽  
Air Water Interface ◽  
Significant Area ◽  
Bulk Chemical

The structure of the air-water interface forms a boundary layer that involves biological ,chemical geological and physical processes in its formation. Freshwater and sea surface microlayers form at the air-water interface and include a diverse assemblage of organic matter, detritus, microorganisms, plankton and heavy metals. The sampling of microlayers and the examination of components is presently a significant area of study because of the input of anthropogenic materials and their accumulation at the air-water interface. The neustonic organisms present in this environment may be sensitive to the toxic components of these inputs. Hardy reports that over 20 different methods have been developed for sampling of microlayers, primarily for bulk chemical analysis. We report here the examination of microlayer films for the documentation of structure and composition.Baier and Gucinski reported the use of Langmuir-Blogett films obtained on germanium prisms for infrared spectroscopic analysis (IR-ATR) of components. The sampling of microlayers has been done by collecting fi1ms on glass plates and teflon drums, We found that microlayers could be collected on 11 mm glass cover slips by pulling a Langmuir-Blogett film from a surface microlayer. Comparative collections were made on methylcel1ulose filter pads. The films could be air-dried or preserved in Lugol's Iodine Several slicks or surface films were sampled in September, 1987 in Chesapeake Bay, Maryland and in August, 1988 in Sequim Bay, Washington, For glass coverslips the films were air-dried, mounted on SEM pegs, ringed with colloidal silver, and sputter coated with Au-Pd, The Langmuir-Blogett film technique maintained the structure of the microlayer intact for examination, SEM observation and EDS analysis were then used to determine organisms and relative concentrations of heavy metals, using a Link AN 10000 EDS system with an ISI SS40 SEM unit. Typical heavy microlayer films are shown in Figure 3.

Nicotianamine: mediator of transport of iron and heavy metals in the phloem?

1993 ◽  
Vol 88 (3) ◽  
pp. 522-529 ◽  
Author(s):  
Udo W. Stephan ◽  
Gunter Scholz
Keyword(s):  
Heavy Metals

Association between heavy metals and depression, anxiety, and panic: A cross-sectional study

2011 ◽  
Author(s):  
Parker Woody ◽  
Michael Zhang ◽  
Craig Pulsipher ◽  
Dawson Hedges ◽  
Bruce Brown
Keyword(s):  
Heavy Metals ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional
Sign in / Sign up

Export Citation Format

Share Document