| Belangrijkste Ref. | Liu, J., 1990 |
|---|---|
| Opmerkingen | Mostly found in rivers, lakes, and reserviors. Hide in swamps and caves during the day time and feeding during the night. Stays in deep waters and muddy places during winter (Ref. 40516). Feeds on all types of fish (Ref. 41072). Recorded as having been or being farmed in rice fields (Ref. 119549). |
| Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
|---|---|---|---|---|
| Marine zones / Brackish and freshwater bodies |
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| Ondergrond | |
|---|---|
| Substraat Ref. | |
| Speciale habitats | |
| Speciale habitats Ref. | Halwart, M. and M.V. Gupta, 2004 |
| Ref. | |
|---|---|
| Associaties | |
| Geassocieerd met | |
| Opmerkingen in verband met associaties | |
| Parasitisme |
| Voedingstype | mainly animals (troph. 2.8 and up) |
|---|---|
| Type voeding Ref. | Dulmaa, A., 1999 |
| Voedingsgewoonte | hunting macrofauna (predator) |
| Voedingsgewoonte Ref. |
| Estimation method | Origineel staal | Onbeviste populatie | Opmerking | ||
|---|---|---|---|---|---|
| Troph | s.e. | Troph | s.e. | ||
| Op basis van dieetsamenstelling | 4.43 | 0.32 | Troph of juv./adults from 3 studies. | ||
| Op basis van individuele voedselitems | 4.50 | 0.80 | Tentative trophic level derived from 1 + troph of a single food item | ||
| Ref. | |||||