Ecology of Gymnocephalus cernua
 
Main Ref. Novoselov, A.P., 1987
Remarks Inhabits lakes, quiet pools and margins of streams. Prefers deep water with deposits of sand and gravel (Ref. 9696). The membranous external walls of the head canals of this species provide high directional sensitivity; can feed at night in the dark using the lateral line system; feeds on zooplankton, chironomids, oligochaetes and amphipods (Ref. 10999).

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 Gymnocephalus cernua may be found.

Habitat

Substrate Soft Bottom: sand; Hard Bottom: rocky;
Substrate Ref. Vostradovsky, J., 1973
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. Novoselov, A.P., 1987
Feeding habit variable
Feeding habit Ref. Novoselov, A.P., 1987

Trophic Level(s)

Estimation method Original sample Unfished population Remark
Troph s.e. Troph s.e.
From diet composition 3.32 0.28
From individual food items 3.26 0.57 Trophic level estimated from a number of food items using a randomized resampling routine.
Ref. Novoselov, A.P., 1987
(e.g. 346)
(e.g. cnidaria)
Entered by Sa-a, Pascualita on 03.31.95
Modified by Luna, Susan M. on 03.23.15
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