scholarly journals Assessment of heavy metals (Cu, Ni, Fe, Co, Mn, Cr, Zn) in rivulet water, their accumulations and alterations in hematology of fish Channa punctatus

2014 ◽  
Vol 13 (3) ◽  
pp. 492-501 ◽  
Author(s):  
Javed Mehjbeen ◽  
Usmani Nazura
Keyword(s):  
Heavy Metals ◽  
Channa Punctatus

scholarly journals Effect of mercury (HG) on some biological parameters of channa punctatus

2016 ◽  
Vol 4 (1) ◽  
pp. 29
Author(s):  
Yogesh Gupta ◽  
Pravesh Kumar
Keyword(s):  
Heavy Metals ◽  
Freshwater Fish ◽  
Direct Effect ◽  
Mercuric Chloride ◽  
Mean Value ◽  
Channa Punctatus ◽  
Biological Parameters ◽  
Yamuna River ◽  
Short Term ◽  
Mean Values

<p>Freshwater fish, channa punctatus caught from Yamuna river studied for toxicity and biological parameters. In the present study short-term (96 hr) toxicity of mercury in relation to estimation of hematological test for channa punctatus. The control fishes showed mean value of 75.00 g/dL for hemoglobin. The fishes were exposed to sub- lethal concentration of mercuric chloride showed the hemoglobin mean values of 67.2, 50.8, 42.6 and 29.2 g/dL hemoglobin at 0.02, 0.04, 0.06, 0.08, and 0.10 ppm treatment respectively. The values for treatments showed a significant decrease when compared to the control (P-0.05).The heavy metals has a direct effect on the 96-hr LC50 values of the respective heavy metals and the susceptibility of fish.</p>

scholarly journals Bioaccumulation of heavy metals in Channa punctatus (Bloch) in river Ramganga (U.P.), India

2019 ◽  
Vol 26 (5) ◽  
pp. 979-984 ◽  
Author(s):  
Robeena Sarah ◽  
Baby Tabassum ◽  
Nida Idrees ◽  
Abeer Hashem ◽  
Elsayed Fathi Abd_Allah
Keyword(s):  
Heavy Metals ◽  
Channa Punctatus

scholarly journals Evaluation of some heavy metals toxicity in Channa punctatus and riverine water of Kosi in Rampur, Uttar Pradesh, India

2020 ◽  
Vol 27 (5) ◽  
pp. 1191-1194 ◽  
Author(s):  
Nida Idrees ◽  
Robeena Sarah ◽  
Baby Tabassum ◽  
Elsayed Fathi Abd_Allah
Keyword(s):  
Heavy Metals ◽  
Uttar Pradesh ◽  
Channa Punctatus ◽  
Riverine Water ◽  
Heavy Metals Toxicity

scholarly journals Concentration of Heavy Metals in Available Fish Species (Bain, Mastacembelus armatus; Taki, Channa punctatus and Bele, Glossogobius giuris) in the Turag River, Bangladesh

2015 ◽  
Vol 58 (2) ◽  
pp. 104-110
Author(s):  
Rezuana Afrin ◽  
Md. Younus Mia ◽  
Md. Aminul Ahsan ◽  
Ahedul Akbor
Keyword(s):  
Heavy Metals ◽  
Fish Species ◽  
Concentration Level ◽  
Channa Punctatus ◽  
Detection Level ◽  
Permissible Limits ◽  
Fish Flesh ◽  
Mastacembelus Armatus ◽  
Glossogobius Giuris

This study was conducted to assess the concentration level of heavy metals in three available fish species (Bain, Mastacembelus armatus; Taki, Channa punctatus and Bele, Glossogobius giuris) of the Turag river, Bangladesh during the months from January to March, 2014. In case of bio-concentration of heavy metals in fish, the levels of Pb, Cd, Cr, Cu and Fe ranged from 0.01-0.13 mg/kg, 0.001-0.02 mg/kg, 0.17-0.48 mg/kg, 0.30-0.74 mg/kg and 4.05-46.86 mg/kg, respectively while Hg was below detection level. These values indicate that the heavy metals were concentrated in fish flesh at a higher level than water. The highest values of Pb, Cd and Cr were found in Bain fish, Fe was found in Taki fish and Cu was found in Bele fish. Most of the heavy metals have crossed the permissible limits in fish, especially for the values of Cr, Cu and Fe. From the results of the present investigation, it can be concluded that the available fish species are harmful for their consumers. 

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
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