Main Ref. | Skelton, P.H., 1993 |
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Remarks | Occurs in rocky rapids and cascades in altitudes of 900-1,200 m. Prefers deeper waters (30-60 cm) over cobbles (Ref. 26172). Feeds on benthic invertebrates such as mayfly and caddis fly nymphs, blackfly and midge larvae and small snails. Increasing extraction and regulation of river water as well as pollution threaten this species. |
Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
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Marine zones / Brackish and freshwater bodies |
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Substrate | |
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Substrate Ref. | |
Special habitats | |
Special habitats Ref. |
Ref. | |
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Associations | |
Associated with | |
Association remarks | |
Parasitism |
Feeding type | mainly animals (troph. 2.8 and up) |
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Feeding type Ref. | Skelton, P.H., 1993 |
Feeding habit | hunting macrofauna (predator) |
Feeding habit Ref. | Skelton, P.H., 1993 |
Estimation method | Original sample | Unfished population | Remark | ||
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Troph | s.e. | Troph | s.e. | ||
From diet composition | |||||
From individual food items | 3.25 | 0.45 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Ref. |