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Food and Feeding Habits Summary Oncorhynchus tshawytscha
 
Main Ref. Rondorf, D.W., G.A. Gray and R.B. Fairley, 1990
Fish stage recruits/juv. Mean length 63.00 FL
Sample size 175 Percent empty
Country Locality Riverine reach of Lake Wallula on the Columbia River, 1980
Period
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
Highlighted items on the list are known Feeding Periods of Oncorhynchus tshawytscha
Diet percent Food I Food II Food III Prey stage Item Name Comments
0.10 % zoobenthos benth. crust. amphipods juv./adults Amphipoda Amphipoda
0.80 % zooplankton plank. crust. cladocerans juv./adults Cladocera Cladocera
0.60 % zoobenthos insects insects adults Hemiptera Hemiptera
1.80 % zoobenthos insects insects adults Hymenoptera Hymenoptera
4.00 % zoobenthos insects insects adults Homoptera Homoptera
9.40 % zoobenthos insects insects adults Ephemeroptera Ephemeroptera
17.10 % zoobenthos insects insects adults Diptera Diptera
66.20 % zoobenthos insects insects adults Trichoptera Trichoptera
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