| Главная ссылка. | Schwalme, K., 1992 |
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| Примечания | Occurs in clear vegetated lakes, quiet pools and backwaters of creeks and small to large rivers (Ref. 5723, 10294). Usually solitary and highly territorial. Enters brackish water in the Baltic. Adult feeds mainly on fishes, but at times feeds heavily on frogs and crayfish (Ref. 27547). Cannibalistic as juveniles (Ref. 30578). Eggs and young are preyed upon by fishes, aquatic insect larvae, birds, and aquatic mammals (Ref. 1998). Does not generally undertake long migrations, but a few may move considerable distances (Ref. 27547). |
| Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
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| Marine zones / Brackish and freshwater bodies |
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| Подложка Ссылка. | |
| Особые места обитания | |
| Особые места обитания Ref. |
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| Паразитизм |
| Тип кормления | mainly animals (troph. 2.8 and up) |
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| Тип подачи Ссылка. | Schwalme, K., 1992 |
| Привычка питаться | hunting macrofauna (predator) |
| Привычки питания Ref. | Schwalme, K., 1992 |
| Estimation method | Оригинальный образец | Непромысловая популяция | Замечание | ||
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| Troph | s.e. | Troph | s.e. | ||
| От состава рациона | 4.07 | 0.41 | 4.45 | 0.74 | Troph of adults from 2 studies. |
| Из отдельных продуктов питания | 4.47 | 1.07 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
| ссылка | Schwalme, K., 1992 | ||||