S. No Prey items Occurrence Volume ViQi Index preponderance ‘I’= VIOI × 100/ÓVIOI Grading
1 Crustaceans 17.3 23.5 406.55 36.93 I
2 Fish 15.8 15.3 241.74 21.96 II
3 Amphipods 5.1 3.4 17.34 1.57 VIII
4 Isopods 4.1 2.6 10.66 0.96 XII
5 Polychaetes 3.9 1.7 6.63 0.60 XIV
6 Nematodes 4.3 2.6 11.18 1.01 XI
7 Phytoplankton 5.2 4.3 22.36 2.03 VII
8 Zooplankton 4.1 3.2 13.12 1.19 X
9 Gastropods 3.9 2.6 10.14 0.92 XIII
10 Bivalves 5.1 3.1 15.81 1.43 IX
11 Sand 6.3 5.3 33.39 3.033 VI
12 Detritus 5.8 9.5 55.1 5.00 IV
13 Miscellaneous 12.8 17.3 221.44 20.11 III
14 Supplementary feeds 6.3 5.6 35.28 3.20 V
Table 4: Index of Preponderance of shrimp P. monodon during June-2012.