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Studies On The Effect Of Water Polluted By Waste Cells On Physiology Of Loach

Posted on:2007-06-15Degree:MasterType:Thesis
Country:ChinaCandidate:Z H TianFull Text:PDF
GTID:2121360212456872Subject:Zoology
Abstract/Summary:PDF Full Text Request
It is generally accepted that waste cells would pollute environments. However, different from waste water or exhaust gas from the factories, pollution from waste cells are dispersing, not obvious in short period, and difficult to detect. Waste cells firstly pollute water and soil, then produce building-up effect on plants and animals, at last do harm to mankind even lead to diseases by food chain.Because of the dispersion of pollution sources, pollution by waste cells has been put out of account. Up to now, there has been no detailed information on effects of waste cells on organisms. Generally speaking, it is difficult to detect the toxicity of waste cells by chemical analysis. Even with the use of indicator organism, there has no ideal results. In the research, we study systematically on the effects of waterr polluted by waste cells on loach physology by the use of biomarker on which has been paid much attention in the field of ecotoxicology. The research provides much materials on pollution by waste cells.Misgurnus anguillicadatus, a species of freshwater fish, has fairly capacity of anti-pollution. Hence, loach was chosen as experiment subject. It showed that water polluted by waste cells had poisoning effects on it, there were very significant positive correlations between toxicity and duration of exposure, concentration of pollution water; the results showed that characters of animals poisoned were as follows: canker of muscles on belly, back, and mandible; blood spot appearance on skin, and eyespot were harmed et.al.After chronic toxicity test, further test of genetic toxicology on surviving loach were carried out. Blood blades were made to observe the form of cell.Compared to control groups, the rate of nuclear anomaly and micronuclei are greatly higher. The resulte showed that toxin from waste cells made tremendous mpactson indexes of...
Keywords/Search Tags:Water Polluted by Waste cells, Loach, toxicity, Red blood cell, Nuclear Abnormity, Activities of enzyme biomarker
PDF Full Text Request
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