| Main Food | Percent |
Trophic Level (y) |
Predator Life Stage | Country | Locality | Ref. |
|---|---|---|---|---|---|---|
| zoobenthos | 91 | 3.2 | juv./adults | Russia | Northern Dvina delta,months of May-October, 1993-1997 | 36333 |
| zoobenthos | 90 | 4.3 | juv./adults | Russia | Lake Bol'shoe Lebyazh'e, Arkhangel Province, 1981 | 9061 |
| zooplankton | 59 | 3.0 | juv./adults | UK Scotland | Loch Lomond, Scotland | 6258 |
| zooplankton | 26 | 3.2 | juv./adults | Finland | Lake Suomunjärvi, Eastern Finland | 13388 |
| zoobenthos | 60 | 3.1 | recruits/juv. | Russia | Dry Sea Bay, months of May to October, 1993 to 1997 | 36333 |
| zoobenthos | 40 | 3.8 | recruits/juv. | Russia | Mudyug Island, months of May to October, 1993-1997 | 36333 |
| zooplankton | 34 | 3.1 | recruits/juv. | Finland | Lake Suomunjärvi, Eastern Finland | 13388 |