Ecology Summary - Galaxias arcanus

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Main Ref.	Raadik, T.A., 2014
Remarks	Recorded from cold to relatively cool, clear water in flowing creeks to large rivers (1.0-20.0 m average width), usually in shallow (0.1-0.4 m average depth), fast-flowing and high energy riffles and runs 10c), though juveniles have been recorded moving upstream through slow water along the shallow edges of pools. Substrate in riffles and runs consists predominantly of a complex of abundant cobbles and pebbles, with smaller amounts of bedrock, boulder, gravel and coarse sand. Fish are typically found within the diverse substrate, either amongst or under rocks on the stream bed, or deeper in the interstitial spaces of the substratum. Usually not associated with aquatic vegetation, but have been found amongst small and large timber debris.

Main Ref.

Raadik, T.A., 2014

Remarks

Recorded from cold to relatively cool, clear water in flowing creeks to large rivers (1.0-20.0 m average width), usually in shallow (0.1-0.4 m average depth), fast-flowing and high energy riffles and runs 10c), though juveniles have been recorded moving upstream through slow water along the shallow edges of pools. Substrate in riffles and runs consists predominantly of a complex of abundant cobbles and pebbles, with smaller amounts of bedrock, boulder, gravel and coarse sand. Fish are typically found within the diverse substrate, either amongst or under rocks on the stream bed, or deeper in the interstitial spaces of the substratum. Usually not associated with aquatic vegetation, but have been found amongst small and large timber debris.

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 Galaxias arcanus may be found.

Habitat

Substrate
Substrate Ref.
Special habitats
Special habitats Ref.

Associations

Ref.
Associations
Associated with	Found with other members of the Galaxias olidus complex, primarily with G. olidus and Galaxias. oliros sp. nov, and considered to have been sympatric with Galaxias fuscus in the Goulburn River system, before alien trout substantially altered distributio
Association remarks
Parasitism

Feeding

Feeding type
Feeding type Ref.
Feeding habit
Feeding habit Ref.

Trophic Level(s)

Estimation method	Original sample		Unfished population		Remark
Estimation method	Troph	s.e.	Troph	s.e.	Remark
From diet composition
From individual food items
Ref.

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