Main Ref. | Turner, J.L., 1966 |
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Remarks | Inhabit streams and lakes (Ref. 10294). Survive in the cool areas of some highland dams where they were introduced as sporting fish (Ref. 4967). Introduced in Europe since 1883. Prefer warm waters of 27°C (Ref. 11273) and occur in small shallow lakes (maximum depth of 6 m) or in shallow bays of big lakes. Rarely found in big rivers (Ref. 11243). Juveniles feed mainly on invertebrates, plankton and insect larvae (Ref. 10294, 11243); individuals from 5 cm TL become almost exclusively piscivores but also feed on frogs and some crustaceans. These are dusk and dawn feeders, feeding in schools chasing their prey near the surface and in zones with vegetation. Feeding slows down in winter and during spawning (Ref. 11243). Preyed upon by herons, bitterns, and kingfishers (Ref. 1998). |
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. | Halwart, M. and M.V. Gupta, 2004 |
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. | Turner, J.L., 1966 |
Feeding habit | hunting macrofauna (predator) |
Feeding habit Ref. | Turner, J.L., 1966 |
Estimation method | Original sample | Unfished population | Remark | ||
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Troph | s.e. | Troph | s.e. | ||
From diet composition | 3.84 | 0.40 | 3.86 | 0.63 | Troph of juv./adults from 1 study. |
From individual food items | 4.42 | 1.06 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Ref. | Turner, J.L., 1966 |