Ecology of Arapaima gigas
 
Main Ref. Sanchez, J., 1960
Distribution
Marine - Neritic
  • supra-littoral zone
  • littoral zone
  • sublittoral zone
Marine - Oceanic
  • epipelagic
  • mesopelagic
  • epipelagic
  • abyssopelagic
  • hadopelagic
Brackishwater
  • estuaries/lagoons/brackish seas
  • mangroves
  • marshes/swamps
Freshwater
  • rivers/streams
  • lakes/ponds
  • caves
  • exclusively in caves
Highighted items on the list are where Arapaima gigas may be found.
Remarks Has been known to occur at a temperature range of 26-31 °C, pH range of 7.5-7.8, oxygen levels of 2.40-5.60 cc/l. Occurs in small groups and is mainly diurnal (Ref. 9135).

Substrate

Substrate
Substrate Ref.
Special habitats
Special habitats Ref.

Associations

Ref.
Associations
Associated with
Association remarks
Parasitism

Feeding

Feeding type mainly animals (troph. 2.8 and up)
Feeding type ref Soares, M.G.M., R.G. Almeida and W.T. Tunk, 1986
Feeding habit hunting macrofauna (predator)
Feeding habit ref Soares, M.G.M., R.G. Almeida and W.T. Tunk, 1986
Trophic level(s)
Original sample Unfished population Remark
Estimation method Troph s.e. Troph s.e.
From diet composition 4.50 4.42 0.76 Troph of adults from 1 study.
Ref. Soares, M.G.M., R.G. Almeida and W.T. Tunk, 1986
From individual food items 4.50 0.80 Trophic level estimated from a number of food items using a randomized resampling routine.
(e.g. 346)
(e.g. cnidaria)
Entered by Palma Gonzales, Carlos on 04.25.95
Modified by Sa-a, Pascualita on 12.03.00
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