Ecology Summary - Salvelinus namaycush
Ecologia de Salvelinus namaycush
 
Ref. principal Scott, W.B. and E.J. Crossman, 1973
Notas 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).

Aquatic zones / Water bodies

Marine - Neritic Marine - Oceanic Brackishwater Freshwater
Marine zones / Brackish and freshwater bodies
  • supra-littoral zone
  • littoral zone
  • sublittoral zone
  • epipelagic
  • mesopelagic
  • epipelagic
  • abyssopelagic
  • hadopelagic
  • Estuários/lagunas/áreas estuarinas
  • manguezais
  • pântanos/brejos
  • rivers/streams
  • lakes/ponds
  • Cavernas
  • exclusivamente
Highighted items on the list are where Salvelinus namaycush may be found.

Habitat

Substrato
Substrate Ref.
Habitats especiais
Special habitats Ref.

Associações

Ref.
Associações
Associada com
Comentários sobre associação
Parasitismo

Alimentação

Tipo de alimentação mainly animals (troph. 2.8 and up)
Feeding type Ref. Scott, W.B. and E.J. Crossman, 1973
Hábito alimentar hunting macrofauna (predator)
Feeding habit Ref. Scott, W.B. and E.J. Crossman, 1973
Trophic Level(s)
Estimation method Amostra original População virgem (não pescada) Nota
Troph s.e. Troph s.e.
Da composição da dieta 4.29 0.51 4.48 0.81 Troph of juv./adults from 1 study.
Dos itens alimentares individuais 3.77 0.61 Trophic level estimated from a number of food items using a randomized resampling routine.
Ref. Jude, D.J., F.J. Tesar, S.F. Deboe and T.J. Miller, 1987
(p.ex. 346)
(p.ex. oophagy)
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