Ecology of Crenicichla johanna
 
Main Ref. Boujard, T., M. Pascal, F.J. Meunier and P.-Y. Le Bail, 1997
Remarks Feeds on fish, insect larvae and plants (Ref. 27188). Known from rivers and lake shores. May have solitary habits. Mainly piscivorous but also feeds on crustaceans.

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 Crenicichla johanna may be found.

Habitat

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. Boujard, T., M. Pascal, F.J. Meunier and P.-Y. Le Bail, 1997
Feeding habit variable
Feeding habit Ref.
Trophic Level(s)
Estimation method Original sample Unfished population Remark
Troph s.e. Troph s.e.
From diet composition
From individual food items 3.13 0.48 Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.
(e.g. 346)
(e.g. cnidaria)
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