Main Ref. | Maigret, J. and B. Ly, 1986 |
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Remarks | Frequently encountered in coastal waters (Refs. 27000, 127989). Occurs near the bottom or in midwater, over muddy substrates (Ref. 5377). Found in small schools (Refs. 4968, 127989). Feeds on fishes (Refs. 5213, 127989). |
Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
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Marine zones / Brackish and freshwater bodies |
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Substrate | Benthic: demersal; Soft Bottom: mud; |
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Substrate Ref. | |
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Special habitats Ref. |
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Parasitism |
Feeding type | mainly animals (troph. 2.8 and up) |
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Feeding type Ref. | Bianchi, G., K.E. Carpenter, J.-P. Roux, F.J. Molloy, D. Boyer and H.J. Boyer, 1999 |
Feeding habit | hunting macrofauna (predator) |
Feeding habit Ref. | Haimovici, M., A.S. Martins, J.L. Figueiredo and P.C. Vieira, 1994 |
Estimation method | Original sample | Unfished population | Remark | ||
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Troph | s.e. | Troph | s.e. | ||
From diet composition | 4.50 | Troph of adults from 1 study. | |||
From individual food items | 4.22 | 0.73 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Ref. | Bowman, R.E., C.E. Stillwell, W.L. Michaels and M.D. Grosslein, 2000 |