Main Ref. | Scott, W.B. and E.J. Crossman, 1973 |
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Remarks | Found in shallow and deep waters of northern lakes and streams and is restricted to relatively deep lakes in the southern part of its range (Ref. 5723). Rarely in brackish water (Ref. 11980). A solitary wanderer, the extent of their movements apparently limited by the size of the lake and individual (Ref. 27547). Although lake trout generally feed on a variety of organisms such as freshwater sponges, crustaceans, insects, fishes (with a preference for ciscoes), and small mammals, some populations feed on plankton throughout their lives (Ref. 27547). Such plankton-feeding lake trout grow more slowly, mature earlier and at smaller size, die sooner and attain smaller maximum size than do their fish-eating counterparts (Ref. 30351). Juveniles feed on invertebrates (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. |
संदर्भ | |
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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. | Scott, W.B. and E.J. Crossman, 1973 |
Feeding habit | hunting macrofauna (predator) |
Feeding habit Ref. | Scott, W.B. and E.J. Crossman, 1973 |
Estimation method | Original sample | Unfished population | टिप्पणी | ||
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Troph | s.e. | Troph | s.e. | ||
From diet composition | 4.29 | 0.51 | 4.48 | 0.81 | Troph of juv./adults from 1 study. |
From individual food items | 3.77 | 0.61 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
संदर्भ | Jude, D.J., F.J. Tesar, S.F. Deboe and T.J. Miller, 1987 |