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Ecology of Auxis rochei
 
Main Ref. Collette, B.B. and C.E. Nauen, 1983
Distribution
Marine - Neritic
  • supra-littoral zone
  • littoral zone
  • sublittoral zone
 Marine - Oceanic
  • epipelagic
  • mesopelagic
  • epipelagic
  • abyssopelagic
  • hadopelagic
 Brackishwater
  • estuaries/lagoons/brackish seas
  • mangroves
  • marshes/swamps
 Freshwater
  • rivers/streams
  • lakes/ponds
  • caves
  • exclusively in caves
Highighted items on the list are where Auxis rochei may be found.
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.

Substrate

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)
Original sample Unfished population Remark
Estimation method Troph s.e. Troph s.e.
From diet composition 4.13 0.61
Ref. Kumaran, M., 1964
From individual food items 4.27 0.67 Trophic level estimated from a number of food items using a randomized resampling routine.
(e.g. 346)
(e.g. cnidaria)
Entered by Luna, Susan M. on 10.19.90
Modified by Ortañez, Auda Kareen on 01.24.08
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