Prevalence and Antimicrobial Resistance of Bacteria Isolated from Marine and Freshwater Fish in Tanzania

Table 1

Mean total viable counts of retail fish in log10 CFU per gram ± standard error (SE).

Fish species	N	Mean ± SE	% of samples that fell into the quality category
			Good	Marginally acceptable	Unacceptable
Nile perch	24	4.70 ± 0.10^a	16.30	8.70	0
Shrimps	20	4.53 ± 0.29^a	15.22	6.52	0
Nile tilapia	24	3.82 ± 0.41^b	19.57	6.52	0
Red snapper	24	5.22 ± 0.13^a	7.61	19.57	0
Total	92		58.70	41.30	0

Means followed by similar letters do not differ significantly (). Microbiological quality categories of good (<5 × 105 CFU/g), marginally acceptable (5 × 105 to 1 × 107 CFU/g), and unacceptable (>1 × 107 CFU/g) [23].