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Ecology of Istiophorus albicans
 
Main Ref. Nakamura, I., 1985
Remarks Usually found in the upper layers of warm water above the thermocline, but also capable of descending to rather deep water. Often migrate into near-shore waters. Occasionally form schools or smaller groups of 3 to 30 individuals, but often occur in loose aggregations over a wide area. Feed mainly on small pelagic fishes but also takes bottom-dwelling organisms. Females grow larger (Ref. 4770).

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 Istiophorus albicans 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. Nakamura, I., 1985
Feeding habit hunting macrofauna (predator)
Feeding habit Ref. Nakamura, I., 1985
Trophic Level(s)
Estimation method Original sample Unfished population Remark
Troph s.e. Troph s.e.
From diet composition 4.50 0.42 4.37 0.67 Troph of juv./adults from 2 studies.
From individual food items 4.42 0.73 Trophic level estimated from a number of food items using a randomized resampling routine.
Ref. Júnior, T.V., C.M. Vooren and R.P. Lessa, 2004
(e.g. 346)
(e.g. oophagy)
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