| المرجع الرئيسي | Scott, W.B. and E.J. Crossman, 1973 |
|---|---|
| ملاحظات | Inhabits open water of clear, cold medium to large rivers and lakes, entering rocky creeks to spawn (Ref. 5723). Forms schools in moderate numbers (Ref. 9988). Young feed on zooplankton with a gradual shift to immature insects; adults feed mainly on surface insects but also take in fishes, fish eggs, lemmings, and planktonic crustaceans (Ref. 1998). |
| Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
|---|---|---|---|---|
| Marine zones / Brackish and freshwater bodies |
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| Substrate | |
|---|---|
| Substrate Ref. | |
| Special habitats | |
| Special habitats Ref. |
| مرجع | |
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| Associations | |
| Associated with | |
| Association remarks | |
| Parasitism |
| نوع التغذية | mainly animals (troph. 2.8 and up) |
|---|---|
| Feeding type Ref. | Scott, W.B. and E.J. Crossman, 1973 |
| العادات الغذائية | hunting macrofauna (predator) |
| Feeding habit Ref. |
| Estimation method | العينة الأصلية | مجتمعات لم يتم صيدها | ملاحظة | ||
|---|---|---|---|---|---|
| Troph | s.e. | Troph | s.e. | ||
| من التركيبة الغذائية | 3.26 | 0.20 | Troph of juv./adults from 1 study. | ||
| من العناصر الغذائية المفردة | 3.32 | 0.40 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
| مرجع | Levanidov, V.Y., 1959 | ||||