. 2019 Dec 17;9:19306. doi: 10.1038/s41598-019-55845-w

Table 5.

Fatty acid composition (mean ± SE) of different size groups of hilsa collected from Hooghly river system.

Fatty acid	Group I	Group II	Group III	Group IV	Group V	Group VI	Group VII
C14**	1.82^a ± 0.23	7.76^b ± 0.21	7.32^cd ± 0.01	7.28^cd ± 0.37	7.00^c ± 0.13	8.51^e ± 0.21	6.00^b ± 0.06
C15	ND	0.18 ± 0.18	ND	ND	ND	ND	ND
C16*	15.92^a ± 1.45	25.49^b ± 4.14	26.04^b ± 0.34	24.78^b ± 0.56	24.09^b ± 0.18	26.38^b ± 0.57	24.34^b ± 0.19
C17	0	0.11 ± 0.11	ND	ND	ND	ND	ND
C18**	7.01^a ± 0.83	9.45^ab ± 2.85	13.26^bc ± 0.80	15.86^c ± 0.56	14.04^bc ± 2.03	10.58^ab ± 1.04	24.43^d ± 0.61
∑SFA**	24.75^a ± 0.85	42.99^b ± 1.22	46.62^bc ± 1.15	47.92^c ± 0.37	45.13^bc ± 1.96	45.47^bc ± 0.25	54.77^d ± 0.48
C16:1**	3.77^a ± 0.36	13.34^c ± 2.00	12.90^c ± 0.04	12.18^c ± 0.27	13.26^c ± 0.06	13.23^c ± 0.43	7.17^b ± 0.18
C17:1	ND	0.02 ± 0.02	ND	ND	ND	ND	ND
C18:1*	5.96^a ± 0.50	12.865^b ± 2.405	14.45^b ± 0.29	13.70^b ± 0.23	18.52^b ± 3.49	12.83^b ± 0.53	13.82^b ± 0.26
C20:1	ND	0.345 ± 0.345	ND	ND	ND	ND	1.56 ± 0.02
∑MUFA**	9.73^a ± 0.16	26.57^b ± 4.04	27.35^b ± 0.24	25.88^b ± 0.51	31.78^b ± 3.55	26.06^b ± 0.96	22.55^b ± 0.45
C18:2*	1.72^a ± 0.04	2.49^c ± 0.29	1.94^ab ± 0.04	2.52^c ± 0.12	2.26^bc ± 0.05	2.51^c ± 0.20	1.94^ab ± 0.01
C18:3	0.91 ± 0.06	0.77 ± 0.35	ND	ND	ND	ND	ND
C20:2	ND	ND	ND	ND	ND	ND	1.07 ± 0.01
C20:3	ND	0.145 ± 0.145	ND	ND	ND	ND	ND
C20:4**	6.67^d ± 0.01	2.02^ab ± 0.02	2.16^bc ± 0.05	1.93^a ± 0.05	ND	ND	2.29^c ± 0.03
C20:5*	9.27^a ± 0.17	15.92^bc ± 3.51	15.2^bc ± 0.51	15.39^bc ± 0.51	14.78^bc ± 1.11	18.45^c ± 0.35	12.18^ab ± 0.01
C22:6**	46.98^d ± 0.66	8.80^c ± 1.29	6.75^ab ± 0.30	6.34^ab ± 0.14	6.06^ab ± 0.41	7.53^bc ± 0.14	5.25^a ± 0.01
∑PUFA**	65.55^c ± 0.71	30.15^b ± 4.9	26.05^ab ± 0.91	26.18^ab ± 0.81	23.10^ab ± 1.57	28.49^ab ± 0.69	22.73^a ± 0.04
n-3**	57.15^c ± 0.76	25.49^b ± 4.45	21.95^ab ± 0.81	21.72^ab ± 0.64	20.84^ab ± 1.52	25.98^b ± 0.49	17.43^a ± 0.01
n-6**	8.39^c ± 0.06	4.66^b ± 0.455	4.09^ab ± 0.09	4.44^ab ± 0.17	2.26^ab ± 0.05	2.51^e ± 0.20	4.22^a ± 0.02
n-3/n-6**	6.81^c ± 0.14	5.43^b ± 0.42	5.36^b ± 0.07	4.89^b ± 0.05	9.21^d ± 0.47	10.4^e ± 0.63	4.13^a ± 0.02

**P < 0.01, * P < 0.05, ND-not detected, Means followed by different superscripts in a row differ significantly from each other.