Ecology of Onykia robusta
 
Main Ref. Roper, C.F.E., M.J. Sweeney and C.E. Nauen, 1984
Remarks Occurs near the seafloor and in pelagic waters (Ref. 102863). Reported to feed on benthic fish, echinoderms and a pleustonic jellyfish (Ref. 98552). Predators include sperm whales, shark and fur seals (Ref. 102863).

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 Onykia robusta may be found.

Habitat

Substrate Benthic; Pelagic;
Substrate Ref. Roper, C.F.E., M.J. Sweeney and C.E. Nauen, 1984
Special habitats
Special habitats Ref.

Associations

Ref. Roper, C.F.E., M.J. Sweeney and C.E. Nauen, 1984
Associations
Associated with
Association remarks
Parasitism

feeding

Feeding type mainly animals (troph. 2.8 and up)
Feeding type Ref. Vidal, E.A.G. (ed.), 2014
Feeding habit hunting macrofauna (predator)
Feeding habit Ref. Vidal, E.A.G. (ed.), 2014

Trophic Level(s)

Estimation method original sample unfished population Remark
Troph s.e. Troph s.e.
From diet composition
From individual food items 4.03 0.37 Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.
(e.g. 9948)
(e.g. cnidaria)
Entered by Parducho, Vina Angelica on 04.22.15
Modified by Abucay, Luisa on 12.06.20
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