Main Ref. | Fischer, W., M.-L. Bauchot and M. Schneider (eds.), 1987 |
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Anmärkningar | General migration towards the shore during summer, where it can enter estuaries. |
Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
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Marine zones / Brackish and freshwater bodies |
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Substrate | Soft Bottom: rocky; |
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Substrate Ref. | |
Special habitats | |
Special habitats Ref. |
Ref. | |
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Associations | |
Associated with | |
Association remarks | |
Parasitism |
Typ av föda | mainly animals (troph. 2.8 and up) |
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Feeding type Ref. | Sparholt, H., 1990 |
Födosöksstrategi | hunting macrofauna (predator) |
Feeding habit Ref. | Sparholt, H., 1990 |
Estimation method | Ursprungligt prov | Ofiskad population | Kommentar | ||
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Troph | s.e. | Troph | s.e. | ||
Från födosammansättning | 3.87 | 0.01 | 3.55 | 0.55 | Troph of juv./adults from 1905 studies. |
Från individuella födoämnen | 4.37 | 0.01 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Ref. | Moreno-Amich, R., 1994 |