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Ecology of Polydactylus macrochir
 
Main Ref. Kailola, P.J., M.J. Williams, P.C. Stewart, R.E. Reichelt, A. McNee and C. Grieve, 1993
Remarks Occur inshore (Ref. 75154). There is little information on the life cycle movements of threadfin salmon. Tagging programs (Ref. 28741) have shown that adult king threadfin move long distances along the coastline for at least 550 km. Usually form schools, although larger fish often move in pairs or singly (Ref. 6390).

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 Polydactylus macrochir may be found.

Habitat

Substrate Soft Bottom: sand; silt;
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. Kailola, P.J., M.J. Williams, P.C. Stewart, R.E. Reichelt, A. McNee and C. Grieve, 1993
Feeding habit hunting macrofauna (predator)
Feeding habit Ref. Kailola, P.J., M.J. Williams, P.C. Stewart, R.E. Reichelt, A. McNee and C. Grieve, 1993
Trophic Level(s)
Estimation method Original sample Unfished population Remark
Troph s.e. Troph s.e.
From diet composition 3.97 0.42 4.09 0.75 Troph of juv./adults from 1 study.
From individual food items 4.05 0.71 Trophic level estimated from a number of food items using a randomized resampling routine.
Ref. Salini, J.P., D.T. Brewer and S.J.M. Blaber, 1998
(e.g. 346)
(e.g. oophagy)
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