| Sample | Location | mean heterotrophic bacterial counts [MHBC] | |||||
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| Dry Season [cfu/g] | Rainy Season [cfu/g] | ||||
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| Intestine | Body | Gills | Intestine | Body | Gills |
| Oyster | Eastern Obolo | 1.59 × 108 | 3.53 × 107 | 3.27 × 108 | 2.54 × 107 | 3.6 × 104 | 4.39 × 106 |
| Oyster | Ibeno | 3.65 × 107 | 6.58 × 106 | 8.25 × 107 | 3.11 × 106 | 3.12 × 106 | 2.55 × 107 |
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| Clams | Eastern Obolo | 3.71 × 107 | 1.84 × 107 | 5.25 × 107 | 2.33 × 106 | 4.80 × 105 | 3.05 × 106 |
| Clams | Ibeno | 8.04 × 107 | - | 7.93 × 103 | 1.92 × 107 | - | 7.55 × 105 |
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| Periwinkle | Eastern Obolo | 3.31 × 106 | 9.10 × 106 | 2.83 × 107 | 7.40 × 105 | 1.70 × 106 | 3.54 × 106 |
| Periwinkle | Ibeno | - | 1.45 × 105 | 2.64 × 107 | - | 1.50 × 106 | 4.51 × 106 |