Main Ref. | Whitehead, P.J.P., 1985 |
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Remarks | Euryhaline, anadromous, possibly wintering near the bottom and out from the coast, approaching the shore in late spring. Feeds opportunistically on fauna other than zooplankton (Ref. 5722). Parasite of the species is known to be Echinorhynchus acus (acanthocephalan) (Ref. 5951). |
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 |
Feeding type | mainly animals (troph. 2.8 and up) |
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Feeding type Ref. | Davis, B.M. and J.W. Foltz, 1991 |
Feeding habit | hunting macrofauna (predator) |
Feeding habit Ref. | Davis, B.M. and J.W. Foltz, 1991 |
Estimation method | Original sample | Unfished population | Remark | ||
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Troph | s.e. | Troph | s.e. | ||
From diet composition | 3.81 | 0.26 | 3.50 | 0.26 | Troph of juv./adults from 1 study. |
From individual food items | 3.42 | 0.42 | 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 |