Ecology of Gadus chalcogrammus
Main Ref. Livingston, P.A., 1993
Marine - Neritic
  • supra-littoral zone
  • littoral zone
  • sublittoral zone
Marine - Oceanic
  • epipelagic
  • mesopelagic
  • epipelagic
  • abyssopelagic
  • hadopelagic
  • estuaries/lagoons/brackish seas
  • mangroves
  • marshes/swamps
  • rivers/streams
  • lakes/ponds
  • caves
  • exclusively in caves
Highighted items on the list are where Gadus chalcogrammus may be found.
Remarks Pelagic species which employs different foraging styles under different food distributions (Ref. 30688). Feed mainly on krill. Also feed on zooplankton such as copepod, small shrimp, squid and small fish (Ref. 39882). Cannibalistic (Ref. 43846). Length range, (FL: 10 to 78.1 cm) of walleye pollock consumed by Steller sea lions in Southeast Alaska between 1994 to 1999 (Ref. 53504).


Substrate Ref.
Special habitats
Special habitats Ref.


Associated with
Association remarks


Feeding type mainly animals (troph. 2.8 and up)
Feeding type ref Livingston, P.A., 1993
Feeding habit hunting macrofauna (predator)
Feeding habit ref Livingston, P.A., 1993
Trophic level(s)
Original sample Unfished population Remark
Estimation method Troph s.e. Troph s.e.
From diet composition 3.57 0.11 3.42 0.46 Troph of juv./adults from 10 studies.
Ref. Yang, M.S. and M.W. Nelson, 1999
From individual food items 3.68 0.62 Trophic level estimated from a number of food items using a randomized resampling routine.
(e.g. 346)
(e.g. cnidaria)
Entered by Palomares, Maria Lourdes D. on 03.07.94
Modified by Pablico, Grace Tolentino on 03.07.05
Checked by Miranda, Lilibeth on 08.14.01
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