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Table 1 Immature mosquito densities before and after O. niloticus introduction into ponds C and D

From: Malaria mosquito control using edible fish in western Kenya: preliminary findings of a controlled study

  Pond Aa   Pond C    Pond D   
Mosquito species Beforeb Afterc Before After % Reductiond Before After % Reduction
A. gambiae s.l. 4.50 ± 0.56 14.08 ± 0.93 11.38 ± 0.67 1.53 ± 0.28 95.8 5.40 ± 0.34 1.00 ± 0.15 94.1
A. funestus 0.06 ± 0.04 2.45 ± 0.47 0.57 ± 0.1 0.43 ± 0.14 98.3 0.61 ± 0.14 0.56 ± 0.10 97.5
Culicines 2.34 ± 0.38 4.51 ± 0.44 2.81 ± 0.47 0.72 ± 0.18 86.7 1.29 ± 0.21 0.63 ± 0.13 75.4
  1. aPond A was the control pond, ponds C and D were treated
  2. b'Before' refers to the 15 weeks before fish introduction into ponds C and D
  3. c'After' refers to the 15 weeks after fish introduction into ponds C and D
  4. dPercentage reduction was corrected for observed natural increases in the control pond using Mulla's formula [19].