S. No Prey items Occurrence Volume ViQi Index preponderance
‘I’= VIOI × 100/ÓVIOI
Grading
1 Crustaceans 16.4 21.5 352.60 34.99 I
2 Fish 13.5 14.6 197.10 19.56 II
3 Amphipods 4.8 5.2 24.96 2.47 VII
4 Isopods 6.3 3.1 19.53 1.93 IX
5 Polychaetes 4.7 2.7 12.69 1.25 XI
6 Nematodes 5.9 3.2 18.88 1.87 X
7 Phytoplankton 5.7 1.7 9.69 0.96 XII
8 Zooplankton 7.1 6.3 44.73 4.43 VI
9 Gastropods 2.5 1.8 4.50 0.44 XIV
10 Bivalves 4.1 2.3 9.43 0.93 XIII
11 Sand 3.8 6.4 24.32 2.41 VIII
12 Detritus 6.5 8.5 55.25 5.48 IV
13 Miscellaneous 11.5 16.4 188.6 18.71 III
14 Supplementary feeds 7.2 6.3 45.36 4.50 V
Table 3: Index of Preponderance of shrimp P. monodon during May-2012.