Argonauta 1-6 2010
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Table 4: Per-cent mortality (Mean ±SE) of Lymnaea acuminata and Labeo rohita caused by different solvent extracts of leaf and bark (i.e. 24h LC90 of snail Lymnaea acuminata) of Euphorbia hirta plant after 24h exposure periods.
|
Plant parts |
Solvents |
Experimental animals |
Concentration (mg/L) |
% Mortality |
|
Leaf |
Chloroform |
L. acuminata |
94.73 (LC90; 24h) |
98.0±3.52 |
|
L. rohita |
- |
Zero |
||
|
Carbon tetrachloride |
L. acuminata |
94.93 (LC90; 24h) |
95.0±1.42 |
|
|
L. rohita |
- |
Zero |
||
|
Diethyl ether |
L. acuminata |
95.26 (LC90; 24h) |
94.78±1.56 |
|
|
L. rohita |
- |
Zero |
||
|
Ethyl alcohol |
L. acuminata |
97.63 (LC90; 24h) |
93.6±2.31 |
|
|
L. rohita |
- |
Zero |
||
|
Acetone |
L. acuminata |
99.31(LC90; 24h) |
91.78±2.67 |
|
|
L. rohita |
- |
Zero |
||
|
Bark |
Chloroform |
L. acuminata |
99.25 (LC90; 24h) |
95.5±1.22 |
|
L. rohita |
- |
Zero |
||
|
Carbon tetrachloride |
L. acuminata |
99.41(LC90; 24h) |
93.56±1.15 |
|
|
L. rohita |
- |
Zero |
||
|
Diethyl ether |
L. acuminata |
102.76 (LC90; 24h) |
93.34±0.00 |
|
|
L. rohita |
- |
Zero |
||
|
Ethyl alcohol |
L. acuminata |
107.75 (LC90; 24h) |
92.5±3.52 |
|
|
L. rohita |
- |
Zero |
||
|
Acetone |
L. acuminata |
11.15 (LC90; 24h) |
90.0±0.00 |
|
|
L. rohita |
- |
Zero |
- Each aquarium contained ten fish (Labeo rohita) and ten snails (Lymnaea acuminata) in 6 L de-chlorinated tap water.
- There was no mortality in case of control groups.
- -, No mortality.