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FishBase
Food and Feeding Habits Summary Ptychocheilus oregonensis
 
Main Ref. Poe, T.P., H.C. Hansel, S. Vigg, D.E. Palmer and L.A. Predergast, 1991
Fish stage recruits/juv. Mean length 30.80 TL
Sample size 4783 Percent empty 31
Country USA Locality John Day Reservoir, Columbia River Basin
Period
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
Highlighted items on the list are known Feeding Periods of Ptychocheilus oregonensis
Diet percent Food I Food II Food III Prey stage Item Name Comments
83.33 % nekton finfish bony fish juv./adults Salmonidae 66.7% Salmonidae, 7.3% Cottidae, 2.4% Percopsidae, 1.7% Catostomidae, 1.4% Cyprinidae, 0.3% Clupeidae
2.30 % zoobenthos insects insects larvae insects
13.78 % zoobenthos benth. crust. n.a./other benth. crustaceans juv./adults Decapoda 9.9% Decapoda, 3.4% Amphipoda,
0.62 % zoobenthos mollusks n.a./other mollusks juv./adults mollusks
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