Table 1. Diet compositions (%IRI) of P. tetradactylum collected from four study sites along the coasts of Thailand (n = 541).

Food type	Diet compositions (%)
	% N	%FO	%V	%IRI
Shrimp and Acetes				59.10
Acetes spp./shrimp post larvae	13.51	13.55	7.85	8.89
Penaeid shrimp	21.59	22.91	31.86	50.20
Fishes				33.28
Ambassis sp.	2.52	2.31	2.63	0.49
Atherinomorus lacunosus	0.37	0.58	0.73	0.03
Dussumieria elopsoides	0.28	0.29	0.22	0.01
Eleutheronema tetradactylum	0.37	0.58	0.59	0.02
Encrasicholina devisi	2.62	2.59	2.92	0.59
Hilsa kelee	0.19	0.14	0.10	0.00
Leiognathus equulus	9.72	3.89	4.14	2.21
Planiliza subviridis	0.37	0.29	0.37	0.01
Stolephorus commersonnii	2.15	2.74	2.95	0.57
Thryssa setirostris	0.37	0.29	0.28	0.01
Trichiurus lepturus	0.75	0.58	0.74	0.04
Fish bone	14.86	14.55	11.73	15.87
Fish flesh	10.93	13.40	13.55	13.45
Mantis shrimp				0.01
Odontodactylus scyllarus	0.09	0.14	0.19	0.01
Mollusca				2.78
Corbula fortisulcata	0.84	1.30	0.72	0.08
Uroteuthis spp.	4.49	5.76	6.95	2.70
Polychaete				0.18
Perinereis nuntia	1.40	1.44	1.71	0.18
UDF	5.70	7.20	7.30	3.84
Zooplankton	2.43	2.45	1.83	0.43
Plastic debris	2.43	3.03	0.64	0.38

Notes.

^aBold value indicates the sum of each diet group.