Chronic Exposure of Spot, Leiostomus xanthurus, to Sublethal Concentrations of Toxaphene in Seawater

1964 ◽  
Vol 93 (4) ◽  
pp. 396-399 ◽  
Author(s):  
Jack I. Lowe
Keyword(s):  
Chronic Exposure ◽  
Leiostomus Xanthurus ◽  
Sublethal Concentrations

SOME IMMUNOBIOCHEMICAL INDICES IN CARASSIUS CARASSIUS EXPOSED TO SUBLETHAL CONCENTRATIONS OF ZINK IONS

2017 ◽  
pp. 50-53
Author(s):  
N. I. Silkina ◽  
D. V. Mikryakov ◽  
V. R. Mikryakov
Keyword(s):  
Antioxidant Activity ◽  
Blood Serum ◽  
Immune Complexes ◽  
Chronic Exposure ◽  
Antimicrobial Properties ◽  
Carassius Carassius ◽  
Experimental Conditions ◽  
Sublethal Concentrations

Investigation results are reported on immunobiochemical indices in carassius carassius at a chronic exposure to sub-lethal Zink ions concentrations. In blood serum and liver, the following characteristics were investigated: antimicrobial properties, proportion of immune- deficient animals, content of non specific immune complexes, common lipids level, content of lipids peroxidation products and antioxidant activity. The relation between magnitudes of indices under investigation in fishes and the duration of their presence under experimental conditions is shown.

scholarly journals Alteration of Blood Parameters and Histoarchitecture of Liver and Kidney of Silver Barb after Chronic Exposure to Quinalphos

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Golam Mohammod Mostakim ◽  
Md. Mahiuddin Zahangir ◽  
Mahbuba Monir Mishu ◽  
Md. Khalilur Rahman ◽  
M. Sadiqul Islam
Keyword(s):  
Chronic Exposure ◽  
White Blood Cells ◽  
Blood Parameters ◽  
Mean Corpuscular Hemoglobin ◽  
Central Vein ◽  
Hematopoietic Tissue ◽  
Corpuscular Hemoglobin ◽  
Liver And Kidney ◽  
Sublethal Concentrations ◽  
Silver Barb

Quinalphos (QP) is commonly used for pest control in the agricultural fields surrounding freshwater reservoirs. This study was conducted to evaluate the chronic toxicity of this pesticide on blood parameters and some organs of silver barb,Barbonymus gonionotus. Fish were exposed to two sublethal concentrations, 0.47 ppm and 0.94 ppm, of QP for a period of 28 days. All the blood parameters (red blood cell, hematocrit, and hemoglobin) and blood glucose except for white blood cells decreased with increasing concentration of toxicant and become significantly lower (p<0.05) at higher concentration when compared with control. The derived hematological indices of mean corpuscular volume, mean corpuscular hemoglobin, and mean corpuscular hemoglobin concentration were equally altered compared to control. Histoarchitectural changes of liver and kidney were observed after exposure to the QP. Hypertrophy of hepatocytes, mild to severe necrosis, ruptured central vein, and vacuolation were observed in the liver of treated groups. Highly degenerated kidney tubules and hematopoietic tissue, degeneration of renal corpuscle, vacuolization, and necrosis were evident in the kidney of treated groups. In conclusion, chronic exposure to QP at sublethal concentrations induced hematological and histological alterations in silver barb and offers a simple tool to evaluate toxicity derived alterations.

ALTERATIONS IN THE ORGANIC RESERVE OF ZINC EXPOSED FRESH WATER CATFISH, CLARIAS BATRACHUS

2018 ◽  
Vol 24 (2) ◽  
Author(s):  
NAVNEET KUNWER SRIVASTAVA ◽  
SADGURU PRAKASH
Keyword(s):  
Fresh Water ◽  
Chronic Exposure ◽  
Zinc Sulphate ◽  
Clarias Batrachus ◽  
Lethal Concentration ◽  
Total Lipids ◽  
Total Proteins ◽  
Kidney Liver ◽  
Sublethal Concentrations ◽  
Zinc Exposure

Present study was carried out to evaluate the changes in organic reserves of kidney, liver, gill and muscles of Clarias batrachus exposed to sublethal concentrations of zinc sulphate in water for a period of 15,30 and 45 days. Four groups of twenty five fish were subjected to 0 (control), 10, 20 and 30 mg/L of zinc sulphate. The sub-chronic exposure of Clarias batrachus to sub-lethal concentration of Zinc sulphate showed a decline in glycogen, total proteins, cholesterol and total lipids in all these tissues. The levels of these organic reserves alter simultaneously with an increase in dose and duration of zinc exposure.

scholarly journals Effects of Glyphosate and Polyoxyethylene Amine on Metabolic Rate and Energy Reserves of Procambarus clarkii Juveniles

2014 ◽  
Vol 8 (1) ◽  
pp. 49-53
Author(s):  
J.L. Frontera ◽  
Nicole Gilette ◽  
Breanna Hull ◽  
Jacquie Korang ◽  
Carolina Amorim ◽  
...  
Keyword(s):  
Metabolic Rate ◽  
Muscle Glycogen ◽  
Chronic Exposure ◽  
Procambarus Clarkii ◽  
Tap Water ◽  
Control Group ◽  
Energy Reserves ◽  
Metabolic Arrest ◽  
Lactate Levels ◽  
Sublethal Concentrations

P. clarkii juvenile crayfish were exposed during 60 days to sublethal concentrations of glyphosate (G), polyoxyehtylene amine (P) or a combination of both (G+P), together with a control group of aged tap water (C). At the end of the experiment, the following statistical differences were noted, with respect to control: 1) a lower metabolic rate in both G and G+P groups, 2) a higher glycemia in G group with no differences in hemolymphatic lactate levels, 3) a lower muscle glycogen levels in both P and G+P groups, 4) a lower level of protein muscle in the P group. Taken together, these results suggest that glyphosate may cause a metabolic arrest. Additionally, under chronic exposure conditions, polyoxyehtylene amine acts as a strong stressor, leading to the utilization of both muscle carbohydrate and protein reserves.

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