Ref. principal | Stiassny, M.L.J., 1989 |
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Notas | The species is physiologically tied to well-aerated water and is acutely sensitive to oxygen lack. Juveniles tend to aggregate inshore among vegetation, while the adults remain further out if there is a sandy substrate (Ref. 52346, Ref. 52960, Ref. 246). Predominant food is the lake-fly in its larval aquatic stages (Ref. 246). |
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 |
Tipo de alimentação | mainly animals (troph. 2.8 and up) |
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Feeding type Ref. | Jackson, P.B.N., 1961 |
Hábito alimentar | hunting macrofauna (predator) |
Feeding habit Ref. | Jackson, P.B.N., 1961 |
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 | 3.20 | 0.40 | Tentative trophic level derived from 1 + troph of a single food item | ||
Ref. |