Skip to main content

Table 1 Diet composition of Carangoides chrysophrys and Epinephelus malabaricus from the Pangani Estuary

From: Differences in trophic resources and niches of two juvenile predatory species in three Pangani estuarine zones, Tanzania: stomach contents and stable isotope approaches

 Food items C. chrysophrys E. malabaricus
%FO %PNi %PWi %PSIRI %FO %PNi %PWi %PSIRI
Brachyura 12.5 54.70 74.12 8.05 50.00 77.44 77.75 38.80
Juvenile shrimps 60.85 91.18 78.42 51.37 31.13 86.30 77.98 25.57
Teleostei–Clupeidae 14.42 80.96 91.08 12.41 17.92 69.62 75.74 13.03
Teleostei–Mugilidae 3.85 53.47 78.45 2.54 10.38 65.76 77.59 7.44
Teleostei–Engraulidae 15.38 63.67 73.66 10.56 1.89 50.00 24.56 0.70
Teleostei–Gobiidae 0 0 0 0 3.77 56.25 55.99 2.12
Unidentified fish 0.96 100.00 100.00 0.96 0 0 0 0
Penaeid shrimps 14.42 79.85 89.15 12.19 6.60 69.52 79.39 4.92
Other shrimps 1.97 100.00 100.00 1.92 3.77 70.83 70.50 2.67
Stomatopoda 0 0 0 0 6.60 72.38 71.87 4.76
Total     100.00     100.00
Total empty stomachs (%) 22 (16.30)    57 (34.76)   
Total stomachs with food (%) 113 (83.70)    107 (65.23)   
  1. %FO percentage frequency of occurrence, %PNi percent prey-specific abundance, %PWi percent prey-specific weight of food item in the stomachs of each species and %PSIRI percentage of prey-specific index of relative importance of each food item in the diet of the predatory fish species