| Réf. Princ. | Zuanon, J. and I. Sazima, 2002 |
|---|---|
| Remarques | A rheophilic species that dwells on rocky bottom rapids with water flow up to 1.7 m/sec. Perches solitary on top of boulders. Forages on rock surfaces and picks mostly on benthic preys; also feeds on micro-crustaceans (cladocerans, ostracods, copepods), immature aquatic insects (chironomids, ephemeropterans, trichopterans) and minute clams (Ref. 46528). |
| Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
|---|---|---|---|---|
| Marine zones / Brackish and freshwater bodies |
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| Substrat | |
|---|---|
| Substrate Ref. | |
| Habitats spéciaux | |
| Special habitats Ref. |
| Réf. | |
|---|---|
| Associations | |
| Associé avec | |
| Remarques sur les associations | |
| Parasitisme |
| Type de prise alimentaire | mainly animals (troph. 2.8 and up) |
|---|---|
| Feeding type Ref. | |
| Habitude alimentaire | |
| Feeding habit Ref. |
| Estimation method | Échantillon original | Population non pêchée | Remarque | ||
|---|---|---|---|---|---|
| Troph | s.e. | Troph | s.e. | ||
| À partir du régime alimentaire | |||||
| À partir des éléments alimentaires | 3.19 | 0.37 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
| Réf. | |||||