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Ecology of Istiophorus platypterus
 
Main Ref. Nakamura, I., 1985
Remarks Oceanic epipelagic. Highly migratory species residing above the thermocline. Feeds on fishes (small tunas, anchovies, mackerel, mullet, etc.), crustaceans and cephalopods. Feeding mostly occurs diurnally. Solitary, but has been observed to form loose schools of up to 30 individuals (Ref. 9773). Abundance and distribution is correlated with the seasonal movements of the water isotherm.

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 platypterus may be found.

Habitat

Substrate Pelagic;
Substrate Ref. Al-Abdessalaam, T.Z.S., 1995
Special habitats Coral Reefs;
Special habitats Ref.

Associations

Ref. Al-Abdessalaam, T.Z.S., 1995
Associations solitary; schooling;
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 0.34 Troph of juv./adults from 2 studies.
From individual food items 4.47 0.83 Trophic level estimated from a number of food items using a randomized resampling routine.
Ref. Pimenta, E.G., F.R. Marques, G.S. Lima and A.F. Amorim, 2001
(e.g. 346)
(e.g. oophagy)
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