Ref. principal | Scott, W.B. and E.J. Crossman, 1973 |
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Notas | Inhabits flowing pools and gravel runs of creeks and small to medium rivers. Also occurs in rocky margins of lakes. Young-of-the-year feed mostly on dipterous larvae; yearlings feed on aquatic insect larvae (mostly Ephemeroptera and Diptera) during the months of June and July switching to terrestrial insects in September; adults more than 2 years also feed on aquatic insect larvae, (Ephemeroptera and Diptera), terrestrial insects, earthworms (Lumbricus) displaced from the soil and benthic animals (Ref. 1998). |
Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
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Marine zones / Brackish and freshwater bodies |
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Substrato | |
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Substrate Ref. | |
Habitats especiais | |
Special habitats Ref. |
Ref. | |
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Associações | |
Associada com | |
Comentários sobre associação | |
Parasitismo |
Tipo de alimentação | mainly animals (troph. 2.8 and up) |
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Feeding type Ref. | Scott, W.B. and E.J. Crossman, 1973 |
Hábito alimentar | hunting macrofauna (predator) |
Feeding habit Ref. | Scott, W.B. and E.J. Crossman, 1973 |
Estimation method | Amostra original | População virgem (não pescada) | Nota | ||
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Troph | s.e. | Troph | s.e. | ||
Da composição da dieta | |||||
Dos itens alimentares individuais | 2.67 | 0.26 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Ref. |