Main Ref. | Cowx, I.G., 1989 | ||
Fish stage | juv./adults | Mean length | 20.50 FL |
Sample size | 241 | Percent empty | |
Country | UK | Locality | Cowley Bridge, River Exe catchment, between Mar. 1976-Nov. 1977. |
Period |
|
Diet percent | Food I | Food II | Food III | Prey stage | Item Name | Comments |
---|---|---|---|---|---|---|
14.80 % | plants | other plants | benthic algae/weeds | leaves/blades | benthic algae/weeds | |
18.90 % | detritus | detritus | debris | n.a./others | debris | |
2.90 % | zoobenthos | insects | insects | adults | Insecta | 2.1% other aquatic Insecta, 0.8% Hemiptera |
13.40 % | zoobenthos | insects | insects | larvae | Trichoptera | 7.6% Trichoptera & 1.2% Coleoptera larvae, 0.8% Diptera larvae & pupae |
19.20 % | zoobenthos | insects | insects | nymphs | Plecoptera | 1.8% Plecoptera nymphs, 17.4% Ephemeroptera nymphs |
0.10 % | zoobenthos | benth. crust. | n.a./other benth. crustaceans | juv./adults | benth. crustaceans | |
5.40 % | zoobenthos | mollusks | n.a./other mollusks | juv./adults | mollusks | |
25.30 % | others | others | n.a./others | adults | Aerial Insecta | Aerial Insecta |