Table 8 Comparison of fatty acid composition (mean ± SE) of adult hilsa (>800 g) from Hooghly and Padma river systems.

C14

6.00 ± 0.06

6.14 ± 0.10

C16

24.34 ± 0.19

23.88 ± 0.09

C18**

24.43^b ± 0.61

15.33^a ± 0.20

∑SFA**

54.77^b±0.48

45.35^a ± 0.20

C16:1**

7.17^a ± 0.18

11.86^b ± 0.20

C18:1**

13.82^a ± 0.26

20.76^b ± 0.55

C20:1**

1.56^b ± 0.02

1.25^a ± 0.02

C22:1**

0

0.14 ± 0.11

∑MUFA**

22.54^a±0.45

33.86^b ± 0.76

C18:2**

1.94^b ± 0.01

1.79^a ± 0.00

C20:2**

1.06^b ± 0.01

0.87^a ± 0.01

C20:4

2.29 ± 0.03

1.63 ± 0.20

C20:5

12.18 ± 0.005

11.78 ± 0.10

C22:6

5.25 ± 0.01

4.59 ± 0.74

∑PUFA

22.71 ± 0.04

20.66 ± 0.84

n-3

17.42 ± 0.02

16.37 ± 0.64

n-6*

5.28^b ± 0.02

4.29^a ± 0.20

n-3/n-6**

3.30^a ± 0.01

3.82^b ± 0.03