Main Ref. | Johnson, J.H. and D.S. Dropkin, 1995 | ||
Fish stage | adults | Mean length | 10.80 TL |
Sample size | 6 | Percent empty | 17 |
Country | USA | Locality | Juniata River, Pennsylvania, 1990 |
Period |
|
Diet percent | Food I | Food II | Food III | Prey stage | Item Name | Comments |
---|---|---|---|---|---|---|
12.40 % | zoobenthos | benth. crust. | amphipods | n.a./others | amphipods | |
6.20 % | zoobenthos | insects | insects | nymphs | Hydropsychidae | Hydropsychidae |
8.50 % | zoobenthos | insects | insects | nymphs | Trichoptera | misc. Trichoptera |
8.60 % | zoobenthos | insects | insects | nymphs | Chironomidae | Chironomidae |
9.90 % | zoobenthos | insects | insects | nymphs | Ephemeridae | Ephemeridae |
17.30 % | zoobenthos | insects | insects | nymphs | Ephemerellidae | Ephemerellidae |
17.30 % | zoobenthos | insects | insects | nymphs | Potamanthidae | Potamanthidae |
19.80 % | zoobenthos | insects | insects | nymphs | Heptageniidae | Heptageniidae |