Journal of Ecology and Rural Environment ›› 1994, Vol. 10 ›› Issue (1): 33-35.doi:
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CAI Hou-Jian, ZHOU Feng-Fan
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Abstract: The bioconcentration of 3H-PP333 in Daphnia magna in system A (contained alage)and system B(no algae in water)and elimination were studied.The transfer of PP333 between Daphnia magna and water was analyzed with medical dynamics model.The result showed that the BCFof PP333 in Daphnia magna in system A was significantly higher than that in system B because of deeding at early period of the experment.So the bio-magnification was existed.However the BCF of PP333 in Daphnia magna between two systems was very close at the later period of the experiment.The elimination of PP333 in Daphnia magna fitted the process of first dynamics,with half-life 6 hours.After the experiment was finished,the residue of PP333 in Daphnia magna accounted for 20% of the total.
Key words: paclobutrazol(PP333), dynamic model, bioconcentration, elimination
CLC Number:
X592
CAI Hou-Jian, ZHOU Feng-Fan. Bloconcentration and elimination of PP333 in Daphnia magna[J]. Journal of Ecology and Rural Environment, 1994, 10(1): 33-35.
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