Ecology Summary - Arripis truttacea

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Main Ref.	Kailola, P.J., M.J. Williams, P.C. Stewart, R.E. Reichelt, A. McNee and C. Grieve, 1993
Remarks	Juveniles can tolerate temperature and salinity extremes, such as those found in the gulfs in South Australia and the Coorong (Ref. 6390). During winter and spring, first year juveniles and probably larvae of Western Australian salmon drift and migrate across the Great Australian Bight to the sheltered waters of South Australia, Victoria and Tasmania (Ref. 6390). This movement is initially influenced by the eastward-flowing Leeuwin Current (Ref. 27977). Some also disperse northwards along the New South Wales coast. Juveniles of 5-8 cm FL appear in South Australian bays and inlets between July and September (Ref. 27960, 27977), and in Victorian and Tasmanian waters between August and October (Ref. 27960, 27967, 27977, 740). Juvenile fish in South Australia do not form large schools until their first or second years, when they measure 35-40 cm FL (Ref. 27996).

Main Ref.

Kailola, P.J., M.J. Williams, P.C. Stewart, R.E. Reichelt, A. McNee and C. Grieve, 1993

Remarks

Juveniles can tolerate temperature and salinity extremes, such as those found in the gulfs in South Australia and the Coorong (Ref. 6390). During winter and spring, first year juveniles and probably larvae of Western Australian salmon drift and migrate across the Great Australian Bight to the sheltered waters of South Australia, Victoria and Tasmania (Ref. 6390). This movement is initially influenced by the eastward-flowing Leeuwin Current (Ref. 27977). Some also disperse northwards along the New South Wales coast. Juveniles of 5-8 cm FL appear in South Australian bays and inlets between July and September (Ref. 27960, 27977), and in Victorian and Tasmanian waters between August and October (Ref. 27960, 27967, 27977, 740). Juvenile fish in South Australia do not form large schools until their first or second years, when they measure 35-40 cm FL (Ref. 27996).

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 Arripis truttacea may be found.

Habitat

Substrate	Soft Bottom Hard Bottom: rocky;
Substrate Ref.
Special habitats	Beds: sea grass; Coral Reefs;
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
Estimation method	Troph	s.e.	Troph	s.e.	Remark
From diet composition			4.18	0.72
From individual food items	4.41	0.75			Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.	Robertson, A.I., 1982

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