Main Ref. | Weatherly, N.S., 1987 | ||
Fish stage | recruits/juv. | Mean length | 1.80 TL |
Sample size | 30 | Percent empty | |
Country | UK | Locality | 126 m stretch on west bank of Welsh River Dee, 3.9 km upstream of Chester weir |
Period |
|
Diet percent | Food I | Food II | Food III | Prey stage | Item Name | Comments |
---|---|---|---|---|---|---|
0.91 % | plants | other plants | benthic algae/weeds | n.a./others | benthic algae/weeds | |
2.70 % | detritus | detritus | debris | n.a./others | debris | |
6.30 % | plants | phytoplankton | diatoms | n.a./others | diatoms | |
17.00 % | zoobenthos | insects | insects | adults | insects | aerial insects |
31.80 % | zoobenthos | insects | insects | larvae | Chironomidae | Chironomid larvae |
29.80 % | zoobenthos | insects | insects | pupae | Chironomidae | Chironomid pupae |
1.40 % | zooplankton | other plank. Invertebrates | n.a./other plank. invertebrates | juv./adults | Rotifera | Rotifera |
8.00 % | zoobenthos | worms | non-annelids | juv./adults | Tubificidae | Tubificidae |
2.10 % | zooplankton | plank. crust. | plank. copepods | juv./adults | plank. copepods |