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FishBase
Food and Feeding Habits Summary Oncorhynchus mykiss
 
Main Ref. Ferriz, R.A., 1993
Fish stage juv./adults Mean length 36.30 TL
Sample size 38 Percent empty
Country Argentina Locality Rio Limay, Patagonia , summer 1980-1981
Period
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
Highlighted items on the list are known Feeding Periods of Oncorhynchus mykiss
Diet percent Food I Food II Food III Prey stage Item Name Comments
3.40 % plants phytoplankton blue-green algae n.a./others Cyanophyta Cyanophyta
13.50 % nekton finfish bony fish juv./adults Galaxias maculatus Galaxias maculatus 2.1 misc. fishes 11.4
3.50 % zoobenthos insects insects larvae Nectopsyche sp. Nectopsyche sp.
0.20 % zoobenthos insects insects nymphs Baetis sp. Baetis sp. 0.2
0.80 % zoobenthos insects insects nymphs Plecoptera Plecoptera 0.8
47.60 % zoobenthos benth. crust. n.a./other benth. crustaceans juv./adults Aegla spp. Aegla spp. 47.3
31.00 % others others n.a./others n.a./others Coleoptera misc. terrestrial insects 26.6 Coleoptera terres. 4.4
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