Ecology Summary - Pseudochromis erdmanni

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Main Ref.	Gill, A.C. and G.R. Allen, 2011
Remarks	It is a relatively deep-dwelling reef species, having been recorded in depths of 45-66 m in soft bottom habitats below the base of shallower-growing coral reefs. The species is not homogenously distributed over its range, but seems to occur in a very specific microhabitat, which consists of fine silty-sand bottoms with widely-scattered coral rubble and small barrel sponges; the fish invariably take up residence in burrows under the barrel sponges or in large cavities in a coral rubble piece. Another common factor observed at each of the sites from which this species has been recorded is the presence of significant freshwater input from small streams in the nearby vicinity; these streams deposit fine terrigenous sediments that mix with reef carbonate sands to form the silty-sand substrates on which this species is invariably found. Large males and females are generally found in a mated pair, though solitary individuals are also commonly observed, particularly smaller individuals.

Main Ref.

Gill, A.C. and G.R. Allen, 2011

Remarks

It is a relatively deep-dwelling reef species, having been recorded in depths of 45-66 m in soft bottom habitats below the base of shallower-growing coral reefs. The species is not homogenously distributed over its range, but seems to occur in a very specific microhabitat, which consists of fine silty-sand bottoms with widely-scattered coral rubble and small barrel sponges; the fish invariably take up residence in burrows under the barrel sponges or in large cavities in a coral rubble piece. Another common factor observed at each of the sites from which this species has been recorded is the presence of significant freshwater input from small streams in the nearby vicinity; these streams deposit fine terrigenous sediments that mix with reef carbonate sands to form the silty-sand substrates on which this species is invariably found. Large males and females are generally found in a mated pair, though solitary individuals are also commonly observed, particularly smaller individuals.

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 Pseudochromis erdmanni may be found.

Habitat

Substrate	Soft Bottom
Substrate Ref.
Special habitats	Coral Reefs;
Special habitats Ref.

Associations

Ref.
Associations
Associated with
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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