| Huvuddomare. | Page, L.M. and B.M. Burr, 1991 |
|---|---|
| Anmärkningar | Occur in quiet streams, sloughs, swamps and other wetlands over sand, mud and debris, often among dense vegetation. Juveniles also found among aquatic vegetation, often forming schools of 10-12 individuals (Ref. 39069). Wide range of occurrence with respect to the pH of the water, the habitats are characterized by low alkalinity and ionic content (Ref. 59260). Feeds on insect larvae, worms, mollusks, and crustaceans (Ref. 30578). |
| Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
|---|---|---|---|---|
| Marine zones / Brackish and freshwater bodies |
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| Substrat | Soft Bottom: sand; mud; |
|---|---|
| Substrat Ref. | |
| Särskilda livsmiljöer | vegetation |
| Särskilda livsmiljöer Ref. |
| Ref. | Gordon, M.S., 1948 |
|---|---|
| Föreningar | schooling; |
| Associerad med | |
| Anmärkningar från föreningen | |
| Parasitism |
| Typ av föda | mainly animals (troph. 2.8 and up) |
|---|---|
| Typ av matning Ref. | Billard, R., 1997 |
| Födosöksstrategi | variable |
| Utfodringsvanor Ref. |
| Estimation method | Ursprungligt prov | Ofiskad population | Kommentar | ||
|---|---|---|---|---|---|
| Troph | s.e. | Troph | s.e. | ||
| Från födosammansättning | |||||
| Från individuella födoämnen | 3.25 | 0.39 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
| Ref. | |||||