Ecology Summary - Auxis rochei
Ecology of Auxis rochei
 
Main Ref. Collette, B.B. and C.E. Nauen, 1983
Remarks A schooling species, usually confined to oceanic salinities and with an optimum temperature between 27 and 27°C. Its larvae has the widest temperature tolerance among the tuna species studied, at least between 21.6 and 30.5°C.

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 Auxis rochei 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. Uchida, R.N., 1981
Feeding habit hunting macrofauna (predator)
Feeding habit Ref. Collette, B.B. and C.E. Nauen, 1983
Trophic Level(s)
Estimation method Original sample Unfished population Remark
Troph s.e. Troph s.e.
From diet composition 4.13 0.61
From individual food items 4.40 0.61 Trophic level estimated from a number of food items using a randomized resampling routine.
Ref. Kumaran, M., 1964
(e.g. 9948)
(e.g. oophagy)
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