Ecology Summary - Eleutheronema tetradactylum

Language:

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 blue threadfin move long distances along the coastline for at least 150 km. Blue salmon form large schools in feeding and spawning habitats in coastal shallows (Williams 1997). Feed on prawns and fish (largely members of Mugilidae, Engraulidae, and Sciaenidae) with occasional polychaetes. Frequency of crustaceans to fish in the diet varies seasonally. Larvae (7-30 mm TL) feed mainly on copepods and mysids but also take shrimps and prawn larvae (Ref. 57343). Juveniles (31-60 TL) feed on prawns shrimps and mysids (Ref. 57343).

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 blue threadfin move long distances along the coastline for at least 150 km. Blue salmon form large schools in feeding and spawning habitats in coastal shallows (Williams 1997). Feed on prawns and fish (largely members of Mugilidae, Engraulidae, and Sciaenidae) with occasional polychaetes. Frequency of crustaceans to fish in the diet varies seasonally. Larvae (7-30 mm TL) feed mainly on copepods and mysids but also take shrimps and prawn larvae (Ref. 57343). Juveniles (31-60 TL) feed on prawns shrimps and mysids (Ref. 57343).

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 Eleutheronema tetradactylum may be found.

Habitat

Substrate	Benthic; Soft Bottom: sand; mud;
Substrate Ref.
Special habitats	Coral Reefs;
Special habitats Ref.	Nguyen, N.T. and V.Q. Nguyen, 2006

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
Estimation method	Troph	s.e.	Troph	s.e.	Remark
From diet composition	4.06	0.47	4.61	0.92	Troph of juv./adults from 2 studies.
From individual food items	4.11	0.70			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

Back to Search

cfm script by eagbayani, , php script by rolavides, 2/5/2008 , last modified by mbactong, 10/24/19