Ecology of Lota lota
 
Main Ref. Maitland, P.S. and R.N. Campbell, 1992
Remarks The only member of the family which lives in freshwater. Crepuscular and nocturnal (Ref. 11941). Inhabits deep lakes and large rivers (Ref. 5723) with slow-moving current. Seeks shelter under rocks, in crevices on the river banks, among roots of trees and dense vegetation (Ref. 30578). Those in rivers tend to congregate in deep holes throughout the year, except at spawning (Ref. 27547). Movements into shallower water during summer nights are related to feeding (Ref. 1998). Smaller individuals feed on insect larvae, crayfish, mollusks and other invertebrates with a changing preference for fishes in larger individuals (Ref. 1998). Feeds mainly on fish (Ref. 13439).

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
  • estuaries/lagoons/brackish seas
  • mangroves
  • marshes/swamps
  • rivers/streams
  • lakes/ponds
  • caves
  • exclusively in caves
Highighted items on the list are where Lota lota may be found.

Habitat

Substrate
Substrate Ref.
Special habitats vegetation ( driftwood );
Special habitats Ref.

Associations

Ref.
Associations
Associated with
Association remarks
Parasitism

Feeding

Feeding type mainly animals (troph. 2.8 and up)
Feeding type Ref. Maitland, P.S. and R.N. Campbell, 1992
Feeding habit hunting macrofauna (predator)
Feeding habit Ref.

Trophic Level(s)

Estimation method Original sample Unfished population Remark
Troph s.e. Troph s.e.
From diet composition 3.84 0.20 4.19 0.80 Troph of juv./adults from 2 studies.
From individual food items 4.05 0.81 Trophic level estimated from a number of food items using a randomized resampling routine.
Ref. Bailey, M.M., 1972
(e.g. 346)
(e.g. cnidaria)
Entered by Sa-a, Pascualita on 01.24.94
Modified by Luna, Susan M. on 03.19.15
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