Table 2.

Percentage of frequency of occurrence (F%), numerical percentage of prey items (N%), weight percentage of prey items (W%) all in percent, and index of relative importance (IRI) of the identified food items found in examined fish species

			Stomach content
Diet	Fish species		Bivalvia and gastropoda	Cephalopoda	Decapoda	Isopoda	Brachyura	Polychaeta	Teleostei
1	Trichiurus lepturus	F	-	15.4	23.1	-	15.4	-	92.3
		N	-	9.5	14.3	-	9.5	-	66.7
		W	-	6.0	1.8	-	0.8	-	91.5
		IRI	-	238.2	370.2	-	158.5	-	14,601.0
2	Johnius coitor	F	-	-	52.6	10.5	-	10.5	84.2
		N	-	-	37.8	5.4	-	5.4	51.4
		W	-	-	16.4	1.0	-	0.4	82.3
		IRI	-	-	2852.2	67.5	-	60.9	11,252.2
	Mene maculata	F	14.3	-	-	-	-	-	100.0
		N	10.0	-	-	-	-	-	90.0
		W	36.9	-	-	-	-	-	63.1
		IRI	670.7	-	-	-	-	-	15,305.4
	Upeneus asymmetricus	F	-	5.6	38.9	5.6	-	-	66.7
		N	-	3.6	28.6	3.6	-	-	64.3
		W	-	23.9	23.5	1.8	-	-	50.8
		IRI	-	152.6	2024.0	30.1	-	-	7672.0
	Upeneus moluccensis	F	18.2	-	54.5	-	-	-	63.6
		N	12.5	-	37.5	-	-	-	50.0
		W	11.3	-	26.4	-	-	-	62.2
		IRI	433.3	-	3487.4	-	-	-	7142.3
3	Carangoides chrysophrys	F	-	-	50.0	-	-	-	50.0
		N	-	-	50.0	-	-	-	50.0
		W	-	-	50.0	-	-	-	50.0
		IRI	-	-	5000.0	-	-	-	5000.0
4	Alectis indica	F	10.0	10.0	10.0	-	-	5.0	15.0
		N	10.5	10.5	26.3	-	-	5.3	47.4
		W	1.1	95.2	3.6	-	-	0.1	0.1
		IRI	116.2	1057.7	299.1	-	-	26.4	711.2

Fish species are listed according to their diet: (1) mainly fish feeder, as top predator, (2) mainly fish feeder, as smaller sized or schooling fish, (3) mainly fish and decapod feeder, and (4) mainly cephalopod feeder