| Main Ref. | George, E.L. and W.F. Hadley, 1979 |
|---|---|
| Anmärkningar | Inhabits vegetated and brushy stream margins and pools of creeks and small to medium rivers, and rocky and vegetated margins of lakes. Most commonly found in clear, silt-free rocky streams. Feeds on small crustaceans, insects and fish (Ref. 30578). |
| Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
|---|---|---|---|---|
| Marine zones / Brackish and freshwater bodies |
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| Substrate | Hard Bottom: rocky; |
|---|---|
| Substrate Ref. | Page, L.M. and B.M. Burr, 1991 |
| Special habitats | vegetation ( driftwood ); |
| Special habitats Ref. | Page, L.M. and B.M. Burr, 1991 |
| Ref. | |
|---|---|
| Associations | |
| Associated with | |
| Association remarks | |
| Parasitism |
| Typ av föda | mainly animals (troph. 2.8 and up) |
|---|---|
| Feeding type Ref. | George, E.L. and W.F. Hadley, 1979 |
| Födosöksstrategi | hunting macrofauna (predator) |
| Feeding habit Ref. |
| Estimation method | Ursprungligt prov | Ofiskad population | Kommentar | ||
|---|---|---|---|---|---|
| Troph | s.e. | Troph | s.e. | ||
| Från födosammansättning | 3.43 | 0.18 | 3.38 | 0.49 | Troph of juv./adults from 3 studies. |
| Från individuella födoämnen | 3.33 | 0.44 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
| Ref. | Keast, A. and L. Walsh, 1968 | ||||