Skip to main content

Table 5 Number (percentage) of bacteria isolated from fish sampled from four different sites (S1-S4) of 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

S1

S2

S3

S4

S1

S2

S3

S4

S1

S2

S3

S4

  

A. sobria

1(1.4)

-

-

1(1.4)

-

-

-

-

-

-

1(1.3)

-

3(1.4)

0.001*

C. freundii

2(2.9)

-

-

-

-

-

1(1.7)

-

-

-

-

-

3(1.4)

0.001*

C. koseri

2(2.9)

-

-

-

-

-

-

-

1(1.3)

-

-

-

3(1.4)

0.001*

E. tarda

3(4.3)

-

-

2(2.9)

-

2(3.3)

-

 

-

-

2(2.5)

1(1.3)

10(4.8)

0.096

E. aerogenes

-

-

-

1(1.4)

-

-

1(1.6)

-

1(1.3)

1(1.3)

-

1(1.3)

5(2.4)

0.206

E. cloacae

1(1.4)

-

1(1.4)

-

-

-

-

-

1(1.3)

1(1.3)

1(1.2)

-

5(2.4)

0.003*

E. coli

2(2.9)

1(1.4)

-

2(2.9)

1(1.7)

-

-

1(1.7)

2(2.5)

-

1(1.3)

2(2.5)

12(5.7)

0.016*

K. pneumoniae

-

1(1.4)

-

1(1.4)

-

-

-

-

1(1.3)

-

1(1.3)

 

4(1.9)

0.153

P. shigelloides

-

-

-

1(1.4)

-

1(1.7)

-

-

2(2.5)

-

 

-

3(1.4)

0.287

P. aeroginosa

1(1.4)

-

-

-

-

-

-

-

-

-

2(2.5)

-

4(1.9)

0.003*

S. paratyphi

2(2.9)

1(1.4)

-

-

-

-

1(1.7)

-

2(2.5)

-

1(1.3)

-

7(3.3)

0.364

S. typhi

-

1(1.4)

-

1(1.4)

1(1.7)

1(1.7)

 

1(1.7)

1(1.3)

1(1.3)

-

-

7(3.3)

0.068

S. dysenteriae

1(1.4)

-

-

1(1.4)

-

1(1.7)

-

-

1(1.3)

-

2(2.5)

-

6(2.9)

0.413

S. flexneri

-

1(1.4)

-

2(2.9)

-

1(1.7)

-

-

-

-

2(2.5)

-

6(2.9)

0.158

V. parahemo

-

-

-

1(1.4)

-

-

-

-

-

-

2(2.5)

1(1.3)

4(1.9)

0.007*

Total

15(21.4)

5(7.1)

1(1.4)

13(18.6)

2(3.3)

6(10)

3(5)

2(3.3)

12(15)

3(3.8)

15(18.8)

5(6.3)

82(39.1)

 
  1. S1 sample site 1, S2 sample site 2, S3 sample site 3, S4 sample site 4, n number of isolates
  2. * statistically significant;—not isolated, V. parahem, V. parahemolyticus