Biochemical effects of ethanol on oreochromis mossambicus (Peters)

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Biochemical effects of ethanol on oreochromis mossambicus (Peters)

Show simple item record Smitha, Bhanu V Dr. Babu, Philip 2013-11-12T05:04:34Z 2013-11-12T05:04:34Z 2009-11
dc.description Department of Marine Biology, Microbiology and Biochemistry, School of marine Science, Cochin University of Science and Technology en_US
dc.description.abstract The present study dealt with the haematological, biochemical and istopathological impacts of different sub lethal concentrations of ethanol on a euryhaline teleost Oreochromis In05.s‘ambicu.5' (Peters).Studies carried out using GC indicated an increase in blood ethanol oncentration of the fish which mainly arose due to fishes entering into a state of hypoxia which explains ethanol production as an ubiquitous “anaerobic” end product, which gets accumulated whenever metabolic demand exceeds the mitochondrial oxidative potential. The very low amount of ethanol detected in the control group ofO mossambicns was mainly due to the activity of microorganisms in the gut ofO. Nzossambicus.Oedcma observed in the present study, is a defense mechanism that reduces the branchial superficial area of the fish which comes in contact with the external milieu. These mechanisms also increase the diffusion barrier to the pollutant. Dilation of the blood vessels is due to increased permeability helping in the free passage of ethanol into the blood stream. Telangiectasis observed explains the state of asphyxia of the fish when subjected to ethanol toxicity indicating acute respiratory distress. Gill aneurysm observed indicates impaired respiratory function. This is related to the rupture of the pillar cells which results in an increased blood flow inside the lamellae, causing dilation of the blood vessel or even aneurysm of gill.The present findings warrant future studies to explore A'T'Pases as possible biomarkers of pollutant exposure in ecotoxicology. This study indicated that O. mossambicus when exposed for 7 and 21 days to ethanol was under tremendous stress and parameters employed in this study can be adapted for future investigations as biomarkers of damage caused by ethanol to aquatic organisms. The present study revealed that O. mossambicus is sensitive to sub lethal concentrations of ethanol. en_US
dc.description.sponsorship Cochin University of Science and Technology en_US
dc.language.iso en en_US
dc.publisher Cochin University of Science and Technology en_US
dc.subject Biochemical effects of ethanol en_US
dc.subject Gas chromatography en_US
dc.subject Haematological parameters of oreochromis mossambicus en_US
dc.subject RBC membrane stability en_US
dc.subject Metabolic profiles en_US
dc.subject Protein metabolism en_US
dc.subject Lipid metabolism en_US
dc.title Biochemical effects of ethanol on oreochromis mossambicus (Peters) en_US
dc.type Thesis en_US

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