Main Ref. | Ferriz, R.A., 1989 | ||
Fish stage | juv./adults | Mean length | 23.90 TL |
Sample size | 55 | Percent empty | |
Country | Argentina | Locality | Ramos MexĂa Reservoir, summer 1982-1983 |
Period |
|
Diet percent | Food I | Food II | Food III | Prey stage | Item Name | Comments |
---|---|---|---|---|---|---|
17.00 % | nekton | finfish | bony fish | juv./adults | Galaxias maculatus | 15.4% Galaxias maculatus, 1.6% unid. fish |
6.70 % | zoobenthos | mollusks | gastropods | juv./adults | Biomphalaria peregrina | 6.5% Biomphalaria peregrina, 0.2% Chilina gibbosa |
27.60 % | zoobenthos | insects | insects | larvae | Aeshnidae | Aeshnidae |
44.80 % | zoobenthos | insects | insects | larvae | Chironomid | 44.3% Chironomid larvae, 0.5% other |
3.90 % | zoobenthos | benth. crust. | ostracods | juv./adults | ostracods |