S:No Food item Jan Feb Mar Apr May Jun July Aug Sep Oct Nov Dec Monthly average
1 Crustacean 10.30 12.20 9.95 13.30 11.60 10.50 11.40 10.50 10.30 11.90 8.30 11.94 11.00
2 Polychaetes 10.80 7.84 6.16 7.52 7.11 7.02 6.30 7.11 8.58 6.42 7.80 6.58 7.44
3 Nematodes 7.17 7.10 7.11 5.64 8.10 5.70 6.29 7.95 7.30 5.96 6.50 8.03 6.91
4 Fish 20.60 25.40 28.00 23.50 24.00 27.20 30. 28 28.00 26.60 28.00 29.00 27.20 26.50
5 Zooplankton 10.30 9.34 6.16 7.52 11.00 7.46 9.84 7.11 6.01 9.17 7.00 11.10 8.50
6 Phytoplankton 11.20 9.40 8.06 9.74 7.05 7.90 7.87 7.53 9.44 9.06 9.61 8.23 8.76
7 Bivalves 6.28 5.63 6.16 6.64 4.20 6.14 5.91 7.11 6.43 4.59 5.70 6.17 5.91
8 Gastropods 6.73 5.16 7.01 6.20 6.67 5.70 4.67 6.69 4.72 6.42 7.11 4.53 6.00
9 Sand 6.68 5.63 6.16 4.87 3.56 6.58 5.51 5.44 6.44 6.88 5.20 6.58 5.79
10 Digested matter 3.59 5.63 4.27 4.43 5.33 3.95 2.76 2.93 3.43 1.84 3.50 2.47 3.68
11 Miscellaneous 6.28 5.54 10.90 10.60 10.70 11.80 9.06 9.62 10.70 9.63 10.00 7.82 9.39
Table 4: Monthly Variation in the Percentage Composition of Food of Female P. russelii from January-2012 to December- 2012.