Tissue

Control

Lethal Exposure Period in Days

Day 1

Day 2

Day 3

Day 4

Gill

0.9937a

0.9025b

0.8737c

0.8152d

0.7430e

SD±

0.0002

0.0002

0.0003

0.0003

0.0003

% change

----

-8.05

-13.56

-16.34

-18.45

Muscle

1.0747a

0.9872b

0.9033c

0.8755d

0.7267e

SD±

0.0002

0.0003

0.0002

0.0002

0.0003

% change

----

-8.07

-15.89

-18.48

-32.33

Liver

0.8837a

0.8027b

0.7655c

0. 7121d

0.6525e

SD±

0.0002

0.0002

0.0002

0.0004

0.0003

% change

----

-9.16

-13.37

-19.41

-26.16

Data are means ± SD (n = 6) for an organ in a row followed by the same letter are not signifi cantly different (p < 0.05) from each other according to Duncan’s multiple range test.<`>
Table 3: Potassium ion content (µg/g wet wt of the organ) in organ of fish, Cyprinus carpio exposure to lethal concentration (7.5 µl/l) of quinalphos.