ABSTRACTThe aim of this study is to determine, the comparison of absorption by aquatic plants Hydrilla verticillata and Water hyacinth (Eichhomia crassipes) of malathion insecticide residues in water and comparison of malathion concentration
in tissues of fish fed with of contaminated water plants
(Water hyacinth) with tissues
of fish, which was not fed
contaminated water plant. The effect of heating the contaminated
fish tissue, on its level in tissues of rats that consume it.
For the first experiment (aquarium filled with 3 litre of water +H. verticillata
100 gr + Water hyacinth 100 gr + 20uci14
C-labeled malathion); for the second experiment (the first aquarium filled with 3 litre of water + 30 tails of goldfish + 20 uci14
C-labeled malathion; second aquarium filled with 3 litre of water + Water hyacinth 100 gr + 30 tail of goldfist + 20 uci 14
C ?labeled malathion. For the third experiment (most of contaminated fish tissue in the second
experiment was dried
at room temperature and then given to 30 mice and partly heated and then given to another 30
mice). Malathion levels were then analyzed by using a liquid scintillation counter LSC-753 (Aloka). The results of all
treatments were compared using the Student t-test. It can be concluded, H. verticillata
was more efficient compared to
the enceng gondok in absorbing the insecticide malathion residues in water; malathion concentration in the tissues of
fish fed Water hyacinth was higher than those of fish not fed Water hyacinth; contaminated fish tissue residues of
malathion, although be heated, can not be
lowered significantly, levels in the tissue.
