Ecology of Pseudorca crassidens
 
Main Ref. Tan, J.M.L., 1995
Remarks Found in shallow inshore (Ref. 122680) and deep offshore waters (Refs. 1394, 118705). Typically in groups of 10 to 60 individuals (Ref. 801). Food sharing is observed in this species, and they travel in a broad band up to several kilometers wide in order to increase success of finding prey (Ref. 122680). Feeds primarily on fish like mahi mahi and yellowfin tuna (Ref. 122680) and cephalopods (Refs. 801, 1394, 118705); was reported to attack small cetaceans and, on one occasion, even a humpback whale (Ref. 1394).

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 Pseudorca crassidens may be found.

Habitat

Substrate Pelagic;
Substrate Ref.
Special habitats
Special habitats Ref.

Associations

Ref. Tan, J.M.L., 1995
Associations
Associated with
Association remarks
Parasitism

feeding

Feeding type mainly animals (troph. 2.8 and up)
Feeding type Ref. Jefferson, T.A., S. Leatherwood and M.A. Webber, 1993
Feeding habit hunting macrofauna (predator)
Feeding habit Ref. Jefferson, T.A., S. Leatherwood and M.A. Webber, 1993

Trophic Level(s)

Estimation method original sample unfished population Remark
Troph s.e. Troph s.e.
From diet composition 4.50 0.51 Troph of juv./adults.
From individual food items 4.51 0.48 Trophic level estimated from a number of food items using a randomized resampling routine.
Ref. Alonso, M.K., S.N. Pedraza, A.C.M. Schiavini, R.N.P. Goodall and E.A. Crespo, 1999
(e.g. 9948)
(e.g. cnidaria)
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