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Food and Feeding Habits Summary Oreochromis niloticus
 
Main Ref. Weliange, W.S. and U.S. Amarasinghe, 2007
Fish stage juv./adults Mean length 13.00 TL
Sample size 151 Percent empty
Country Sri Lanka Locality Udawalawe reservoir, August 1998-August 2000
Period
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
Highlighted items on the list are known Feeding Periods of Oreochromis niloticus
Diet percent Food I Food II Food III Prey stage Item Name Comments
2.00 % zooplankton plank. crust. cladocerans juv./adults Bosminopsis Bosminopsis, Moina, Daphnia, Diaphanasoma, Ceriodaphnia
69.00 % detritus detritus debris n.a./others detritus soft sediments, particulate matter
8.00 % plants phytoplankton diatoms n.a./others diatoms diatoms, blue greens, green algae, uncommon algae, filamentous algae
1.00 % zoobenthos insects insects larvae Chironomidae larval stages of Chironomidae, Ephemeroptera and Odonata
10.00 % zoobenthos insects insects larvae Chironomidae larval stages of Chironomidae, Ephemeroptera and Odonata
1.00 % zooplankton other plank. invertebrates n.a./other plank. invertebrates juv./adults Brachionus Brachionus, Trichocerca, Keratella, dinoflagellates, (e.g. Phacus and Peridinium)
4.00 % zoobenthos benth. crust. ostracods juv./adults Chydorids Chydorids, Macrothrix and Cypridopsis
4.00 % zooplankton plank. crust. plank. copepods juv./adults Calanoid Calanoid and cyclopoid copepods, body parts
1.00 % plants other plants terrestrial plants leaves/blades plants Terrestrial and aquatic plants
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