Hoofdreferentie | Michel, P. and T. Oberdorff, 1995 |
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Opmerkingen | Inhabits fast flowing rivers with sand or gravel bottom but may also occur in still waters. Forms schools. Feeds on insect larvae, mollusks, and crustaceans. Normally active during the day but if they are disturbed, in particular, by predators, they can defer their activity to periods when light intensity is weak. Capable of emitting squeaking sounds. These vocalizations, which is a means by which fish communicate with each other, vary with the degree of activity and the temperature and are independent of the season of reproduction (Ref. 30578). |
Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
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Marine zones / Brackish and freshwater bodies |
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Ondergrond | |
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Substrate Ref. | |
Speciale habitats | |
Special habitats Ref. |
Ref. | |
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Associaties | |
Geassocieerd met | |
Opmerkingen in verband met associaties | |
Parasitisme |
Voedingstype | mainly animals (troph. 2.8 and up) |
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Feeding type Ref. | Maitland, P.S. and R.N. Campbell, 1992 |
Voedingsgewoonte | hunting macrofauna (predator) |
Feeding habit Ref. | Maitland, P.S. and R.N. Campbell, 1992 |
Estimation method | Origineel staal | Onbeviste populatie | Opmerking | ||
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Troph | s.e. | Troph | s.e. | ||
Op basis van dieetsamenstelling | |||||
Op basis van individuele voedselitems | 3.13 | 0.38 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Ref. |