Table 4. Diet attributes of E. tetradactylum and ten co-existing fish species in Pattani Bay collected by gill net from January 2021 to January 2022.

Species	Average size of fish (SL and TL in cm ± SD)	Average of fullness index (FL ± SD)	Vacuity index (VI)	Total food type (TL)	Average number of food type (AF ± SD)	Diet breadth (Bi)	Trophic level (TL)
E. tetradactylum	21.78 ± 8.70	3.22 ± 1.75	32.72	8	1.35 ± 0.57	0.41	3.67
S. commerson	32.25 ± 1.65	3.27 ± 0.88	34.78	5	1.80 ± 0.94	0.48	3.89
E. jonesi	11.38 ± 1.15	2.50 ± 0.89	20.00	7	1.81 ± 0.75	0.70	2.37
H. kelee	18.68 ± 1.70	3.08 ± 1.23	21.01	7	1.54 ± 0.67	0.25	1.31
J. belangerii	20.81 ± 1.80	2.53 ± 1.39	17.39	6	1.74 ± 0.45	0.70	2.86
L. russellii	21.85 ± 3.03	2.86 ± 1.15	27.59	5	1.43 ± 0.60	0.56	3.34
O. ruber	24.73 ± 5.94	2.95 ± 0.92	25.00	6	1.71 ± 0.46	0.31	4.25
P. niger	15.85 ± 2.55	3.08 ± 1.00	25.00	6	2.00 ± 0.60	0.46	2.31
S. argus	10.33 ± 1.01	2.92 ± 1.04	18.75	5	1.92 ± 0.76	0.76	1.77
S. lysan	30.90 ± 2.66	2.92 ± 0.64	18.75	5	1.85 ± 0.55	0.80	3.82
E. coioides	24.62 ± 1.59	3.08 ± 1.12	7.14	7	2.38 ± 0.51	0.40	4.14