Spatial Variations in Aquatic Insect Community Structure in the Winam Gulf of Lake Victoria, Kenya
Table 3
Spatial variation in nutrient concentrations of water samples from six study sites within Winam Gulf, lake Victoria.
Sampling stations
NO3(μg·L−1)
NO2(μg·L−1)
TN (μg·L−1)
SRP (μg·L−1)
TP (μg·L−1)
NH4(μg·L−1)
SiO2(mg·L−1)
CHLO (mg·m−3)
Maboko Island
13.45 ± 0.09d
8.96 ± 0.18b
39.16 ± 4.61
56.29 ± 6.23c
97.81 ± 7.39
28.28 ± 4.89d
26.08 ± 0.55a
244.47 ± 20.58
Kisumu
24.00 ± 8.15b
9.95 ± 2.12ab
122.75 ± 43.46
102.00 ± 16.10a
436.86 ± 204.11
84.18 ± 36.58b
25.87 ± 0.42a
237.24 ± 57.62
Fish LB
5.54 ± 1.62e
1.67 ± 1.13c
29.95 ± 2.84
22.95 ± 6.67 d
43.52 ± 6.67
17.51 ± 5.80f
3.60 ± 1.43 d
353.52 ± 141.70
Ndere Island
22.66 ± 0.71b
10.77 ± 1.18a
50.56 ± 19.01
74.38 ± 8.26b
180.67 ± 82.46
60.33 ± 4.38c
24.18 ± 0.44ab
492.44 ± 91.16
Kendu Bay
32.21 ± 2.39a
11.13 ± 0.65a
46.96 ± 0.86
58.67 ± 4.54c
110.67 ± 16.67
31.62 ± 9.11e
20.44 ± 0.49c
1021.8 ± 739.15
Homa Bay
19.41 ± 5.43bc
9.78 ± 1.74ab
67.67 ± 28.60
98.19 ± 15.61a
256.38 ± 104.54
126.23 ± 29.34a
19.86 ± 0.19c
4294.05 ± 3289.88
F. statistics
4.741
7.040
2.1639943
7.74777326
2.0406757
4.3574634
144.52418
1.32720.4
value
0.0127132
0.0027409
0.1268606
0.0018277
0.1445171
0.0170981
<0.001
0.3170887
Significance
S
HS
NS
HS
NS
S
HS
NS
Note. NO3: nitrates; NO2: nitrites; TN: total nitrogen; SRP: soluble reactive phosphorous; T.P.: total phosphorous; NH4: ammonium ions, SiO2−; CHLO: chlorophyll. Level of significance at <0.05 is depicted by letters as follows: S: significant; HS: highly significant; NS: not significant.
