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Table 4 Number (percentage) of bacteria isolated from live-caught fish samples from Lakes Hawassa, Langanoo and Ziway

From: Isolation and identification of major bacteria from three Ethiopian rift valley lakes live and processed fish, and water samples: implications in sanitary system of fish products

Isolated bacteria

Lake Hawassa N = 70

Lake Langano N = 60

Lake Ziway N = 80

Total N = 210

P-value

A. sobria

2(2.9)

-

1(1.3)

3(1.4)

0.064

C. freundii

2(2.9)

1(1.7)

-

3(1.4)

0.187

C. koseri

2(2.9)

-

1(1.3)

3(1.4)

0.187

E. tarda

5(7.1)

2(3.3)

3(3.8)

10(4.8)

0.296

E. aerogenes

1(1.4)

1(1.7)

3(3.8)

5(2.4)

0.394

E. cloacae+

2(2.9)

-

3(3.8)

5(2.4)

0.098

E. coli*

5(7.1)

2(3.3)

5(6.3)

12(5.7)

0.146

K. pneumoniae

2(2.9)

-

2(2.5)

4(1.9)

0.125

P. shigelloides

1(1.4)

1(1.7)

2(2.5)

4(1.9)

0.579

P. aeruginosa

1(1.4)

-

2(2.5)

3(1.4)

0.302

S. paratyphi

3(4.3)

1(1.7)

3(3.8)

7(3.3)

0.296

S. typhi

2(2.9)

3(5)

2(2.5)

7(3.3)

0.729

S. dysenteriae

2(2.9)

1(1.7)

3(3.8)

6(2.9)

0.579

S. flexneri

3(4.3)

1(1.7)

2(2.5)

6(2.9)

0.536

V. parahemolyticus

1(1.4)

-

3(3.8)

4(1.9)

0.072

Total

34(48.6)

13(21.7)

35(43.8)

82(39.1)

< 0.0001**

  1. As Aeromonas sobria, Cf Citrobacter freundii, Ck Citrobacter koseri, Ct Edwardsiella tarda, Ea Enterobacter aerogenes, Ec+ Enterobacter cloacae, Ec* Escherichia coli, Kp Klebsiella pneumonia, Ps Plesiomonas shigelloides, Pa Pseudomonas aeruginosa, Sp Salmonella ParaTyphi, St Salmonella Typhi, Sd Shigella dysenteriae, Sf Shigella flexneri, Vp Vibrio parahemolyticus
  2. ** means significant at 5% level