Main Ref. | George, E.L. and W.F. Hadley, 1979 | ||
Fish stage | recruits/juv. | Mean length | 3.70 TL |
Sample size | 27 | Percent empty | 0 |
Country | USA | Locality | Upper Niagara River, New York, 1977 |
Period |
|
Diet percent | Food I | Food II | Food III | Prey stage | Item Name | Comments |
---|---|---|---|---|---|---|
40.00 % | zoobenthos | benth. crust. | amphipods | juv./adults | Gammarus | Gammarus |
3.00 % | zoobenthos | benth. crust. | benth. copepods | juv./adults | benth. copepods | |
50.00 % | zoobenthos | insects | insects | adults | Caddisfly | Caddis fly |
5.00 % | zoobenthos | insects | insects | larvae | Caddisfly | Caddis fly |
1.00 % | zoobenthos | insects | insects | nymphs | Mayfly | Mayfly nymph |
1.00 % | zooplankton | other plank. Invertebrates | n.a./other plank. invertebrates | juv./adults | Camptocercus | Camptocercus, Daphnia, water mites |