Ecology of Plesionika narval
Main Ref. Fischer, W., G. Bianchi and W.B. Scott (eds.), 1981
Remarks Benthic adults inhabiting mud or muddy sand bottoms, often near rocky areas of the continental slope (Ref. 343). Also found in submarine caves (Ref. 102668). Occurs at depths of 10 to 900 m, common between 200 and 400 m. Pelagic juveniles (Ref. 343). Has a diversified diet. Mainly a predator of benthic species; may be an occasional scavenger (Ref. 102668).

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 Plesionika narval may be found.


Substrate Benthic: mobile; demersal; Soft Bottom: sand; mud; Hard Bottom: rocky;
Substrate Ref.
Special habitats
Special habitats Ref.


Ref. Fischer, W., G. Bianchi and W.B. Scott (eds.), 1981
Associated with
Association remarks


Feeding type mainly animals (troph. 2.8 and up)
Feeding type Ref. Kitsos, M.S., T. Tzomos, L. Anagnostopoulou and A. Koukouras, 2008
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
From individual food items 3.50 0.35 Trophic level estimated from a number of food items using a randomized resampling routine.
(e.g. 9948)
(e.g. cnidaria)
Entered by Pan-Saniano, Marianne on 03.07.06
Modified by Polido, Rubyann Robelle on 06.22.15
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